Again the fitting anti-blast lamps and lanterns will not produce electric arc, spark or may light the high temperature of explosive mixture under the normal running condition, and take measures to improve safe degree. GB3836 standard put forward the strict technical requirement for fitting again anti-blast lamps and lanterns structure, light source, test method.

1. Temperature survey. It is on the outer surface of the lamps and lanterns to separate the test of the exploding supreme surface temperature of anti-blast lamps and lanterns and click. Again the fitting anti-blast lamps and lanterns require their supreme surface temperature of any part should not exceed the regulation of the corresponding temperature group, the supreme surface temperature of the lamps and lanterns appears on the bubble shell of the light source. So adopt same light source through the intersection of temperature and group because of testing the difference ordered of lamps and lanterns of fitting etc. again of lamps and lanterns of exploding etc., one examines appearance, one examines inside Be lack of 1, 2 groups at least. Confirm the intersection of temperature and anti-blast lamps and lanterns of fitting etc. again of group, would not produce, can light explosive high temperature of mixture through the method.

2. The lamp stand adopts and separates the structure which produces. The part that may produce the spark while changing the bulb in the lamp stand of the intersection of spiral shell and mouth should be packed into single separating and is exploded in. In order to prevent the spiral bulb from becoming flexible in the lamp stand by oneself, fastening the square of manpower and fastens to exert oneself in the square and should accord with the demands for standard regulation of lamp stand. It should accord with the regulations of Fa6 lamp stand to have light foot and lamp stand of the actuator fluorescent lamp to participate in only, its structure is to separate the producing structure too. This kind of structure has avoided the production of the spark.

3. The part that switch, trigger,etc. may produce the spark or dangerous temperature should locate in and separate exploding, when or be able to reach the equal safe abundant shell of degree to locate in for instance, water one, fill sand,etc. ,In order to avoid lighting the flammable gas.

4. Choice of the light source. Compared with anti-blast lamps and lanterns of other types, again fitting requiring to be strictest to light source of anti-blast lamps and lanterns. Present lamps and lanterns that electric wire netting supply power, allow light source that adopt:

A, having the one that participated in only not to fluorescent lamp of the brightness opening device;

B, incandescent lamp for general purposes;

C, mixing all light mercury light flows from the town .

The above-mentioned several kinds of light sources will not present the temperature higher than the terminal temperature after at least 10s after the light source break in surprise. Fluorescent lamp of the brightness opening device does not participated in only, needn’t open the brightness device and help to open the brightness, and adopt the electric conduction and bring and open the brightness. This kind of light is in charge of after breaking, unable to maintain the normal working state, the electric conduction brought disconnection, can not make the light in charge of opening the brightness again either, the whole light is in charge of being in broken circuit state, will not make the filament produce the high temperature. And ordinary fluorescent lamp, after breaking, filament and opening the brightness device to form the return circuit, make the filament produce the harmful high temperature. The structure of light foot and lamp stand that this kind of light is in charge of accords with the requirement which separates the producing structure. The incandescent lamp is after the glass shell breaks, the inner vacuum state of the bulb is destroyed, the filament is burnt quickly, will not produce the high temperature continuously, mercury light actually an incandescent lamp and high-pressure mercury light flow to connect from the town in series, after the glass shell breaks, the incandescent lamp is burnt within extremely short time, thus make high-pressure mercury light form the broken circuit state, lower the temperature rapidly. Practice has proved, it is a very little incident of a probability that the light source installed in the lamps and lanterns breaks by oneself. In order to prevent the light source from being smashed by the contingency, again the fitting anti-blast lamps and lanterns resist the energy assaulted to the outer cover, have put forward very high requirement. The approximately harsh choice of the light source, have guaranteed the fitting anti-blast lamps and lanterns can be exploding in a district in the dangerous place and using reliably again.

5. The terminal temperature of the winding of the ballast wants low 1O ℃ more than the terminal temperature of insulating winding of ballast in the ordinary lamps and lanterns, enable life-span of winding but 30% more than improvement, improve dependability of ballast to a great extent.

6. The outer cover should reach above IP54 while protecting the grade. Higher outer cover protect grade, can make aqueous vapor and dust stock people while being difficult.

7. Climb the electric distance. The requirement for climbing the electric distance of insulating material is a grade higher than the ordinary lamps and lanterns too, in order to exclude the possibility of generating heat and puncturing with insulating material.

8. Insulating to lie between the electric intensity to test. The winding of the ballast and insulation of the chassis lie between the electric intensity and should be improved by 10% on the basis of experimental voltage that the corresponding national standard stipulates, and require that needs to carry on this test when dispatched from the factory every product. The standard has also proposed the concrete requirement to bulb and transparent minimum interval, screen panel, electric capacity while covering,etc..

Incandescent lamp bulb, high-pressure mercury vapor lamp should keep the appropriate distance with the flammable things. Should keep larger distance with the flammable thing with the cloth or paper parcel, steamed tungsten light on the bulb. It is unsuitable to use steamed tungsten light in the warehouse to preserve the flammable flammables. The wire used near steamed tungsten lamps and lanterns, glass fiber, asbestos, porcelain pearl,etc. are able to bear firing the line for being insulating should adopt products ing. In the place that may be collided with, the bulb should have a fixed glass covering or metal catch net, and hang at certain height. Under the bulb, do not deposit the combustible material, especially the important warehouse as much as possible, should be like this particularly.

Fluorescent lamp, outstanding ballast of high-pressure mercury should not be installed on the component of the flammable building.

Such as while installing incandescent lamp and ballast of bigger capacity on the flammable material, should consider the fire prevention measure of ventilating, dispelling the heat etc..

It is very important to choose enough wire sections in 36 volts and the following lighting network, because while using with the bulb of the power, the electric current passed is relatively big in the circuit, the caloric value is large too, it is apt to appear to be crossed and loaded dangerously. There should be metal pipes outside the wire, plastic sleeve pipe and band tubing are protected, should also there are obvious differences with other circuits.

Must select the waterproof lamps and lanterns for use outdoors. Exploding in the dangerous place must select the explosion-proof type lamps and lanterns for use, should also accord with the anti-blast requirement of scene.

1.Place such as rooftop at the place where the existing air blower air outlet add to connect the pipeline to guide the wind to the occupying area insensitively, then concentrate all pipeline on make pieces of large pond, pond ventilative place filter cotton, cover, can play certain noise elimination role with some.
2.Install the specialized silencer of the air blower additionally, but will reduce the air exhaust result of the air blower.
3.Change air blower, adopt large type, low axle of rotational speed flow the intersection of air blower and the intersection of thatch and air blower Luo, connect the pipeline to take on to eliminate noise.
The above-mentioned method can only improve, down at the foundation of result than before, want, solve, advise you in residential block and turn on industrial air exhaust machine these night completely, disturb citizens how it says to be no a good thing even.
Mix, flow oblique to shed effusive air blower of the air blower air blower ‘ Air blower of the tunnel Air blower induces the boiler air-introduced machine PVC air blower of the air blower the air blower of polyvinyl chloride on the roof Polypropylene air blower PP air blower Circle round three air blower the intersection of leaf and the intersection of thatch and air-blower Luo, air blower of thatch, Luo, air blower of thatch, Luo Centrifugal air blower of stainless steel air blower of plastic air blower of air blower in environment protecting mode centrifugal air blower, centrifugal the intersection of air-blower and axle flow the intersection of air blower and anti-blast axle shed air blower | Anti-blast the intersection of air blower and high-temperature the intersection of air blower and the intersection of air conditioner and the intersection of air blower and anti-blast the intersection of air blower and antiseptic air blower ‘ Air blower of glass fibre reinforced plastic The DGF -type noise of air blower of dust removal ventilates and arranges the cigarette dual-purpose cupboard type at odds with the community or the leadership wind

The base station of the apparatus controls the data transmission scheme

Catalogue l The intersection of summary and l have now, withdraw l network topological traditional advantage and ample the intersection of l and bunches of the intersection of mouth and person who disappear of scheme, l of picture, time slot withdraw Fetch the base station of meddling in apparatus and control the scheme l technical requirement for solving the strong advantage l products circuit part of the topological picture l scheme of the thinking l concrete group’s network of data transmission, realize the principle solves one bunch of mouths of l E1 and restrains the server IDM-LSC/S in details l The structural frame picture l of the view l apparatus principle realizes outside the apparatus function l apparatus the principle l time slot is drawn and inserted in the apparatus IDM-8S/2S l The structural frame picture l of the view l apparatus principle realizes outside the apparatus function l apparatus that takes the time slot to propose the scheme l BTS of the function is not taken by network mode l BTS and BSC of group l of the principle The time slot collects the function, BSC have time slot collect the intersection of scheme and l BSC and BTS of function transmission network, l of scheme, of function pass one independent the intersection of E1 and the intersection of group and the intersection of chain and scheme l W of network The EB -type network management disposes the system l and moves base station and wireless base station,etc. and generally has the following characteristics: And scattering that there are many websites; It is limited to transmit resources; There are few, small in quantity power apparatus kinds of each base station; The base station apparatus is with little investment; The situation of power network is not very steady; It is more abominable too that the computer lab lives in the environment, and it is basically all that nobody is on duty to move base stations. l With swift and violent development of mobile communication, to transport, link strength to be weak transporting, it links work load to be conspicuous day by day in loud contradictioning mobile communication. But safeguard competence at present and basically still stay in the traditional way of guarding, patrolling and inspecting manually etc., and because of the characteristic of mobile network, the motive force of applying to fixed network and centralized monitoring system of the environment can’t be well applied to the mobile communication network, so combine actual conditions and resource of the existing movement base station, develop a kind of novel motive force control system, it is imperative to solve and transport and link strength weakly and transport and link the contradiction of great work load. l Existing to collect solution analysis on the basis of the time slot l Group’s network analysis l What the present base station motive force environmental monitoring data transmission system mainly adopted is to based on collecting the scheme of the time slot, collect a 64K time slot and carry on RS232 data transmission while adopting E1, the time slot not needed returns BTS to to use ‘ Or is collected an 64K idle time slot by BTS and used for transmitting RS232 data for the power of base station . RS232 time slot drew and inserted in the apparatus and drew RS232 data that E1 idle time slot transmits the power of base station. The centre carries SDH and sends E1 of No. 31 here, a time slot on every way E1 for example: The 29th time slot Bear the weight of RS232 data of the nodal power of the base station; BSC base station controller restrains RS232 data of the 29th time slot in every No. E1 on one E1, send DXC into ‘ Or PCM replies and uses the apparatus Get off several No. RS232, then pursue, amalgamate through many bunches of mouthfuls of card constantly one RS232 connect, manage server and if Fig. two convert RS232 these to Ethernet connect with through bunches of mouthfuls of server Receive and manage the server, dispose the corresponding driver, control the software of host computer, dispose the tool software etc. in managing the server, reaching the data gathers, deals with, appears in the newspaper, controls the function. l Topological picture of network

Fig. 1: The centre amalgamates into one RS232 and connects and manages the server through many bunches of cards

Fig. two: The centre publishes Ethernet to connect and manage the server through the LAN through one bunch of servers l Advantage and deficiency of the traditional scheme l All the time, apply in reality more extensively such as the control data transmission solutions of Fig. 1 and Fig. two, but its advantage and insufficient and very obvious too.
Main advantage
l There are more apparatus providers, the alternative greater l practical application is very extensive, the scheme is riper
l Weak point
l The centre carries many apparatuses, there is much switching, connect many cables, apt to make mistakes, there are many trouble points, dependability low and l difficult to go on, manage l to be often maintaining amount loud in unison to apparatus, maintain very high l unable data to many kinds of collection apparatuses of the cost to gather in unison, analyze, manage and maintain l bunches of the intersection of mouth and person who disappear time slot draw base station of inserting in apparatus control the data transmission scheme l Solve the thinking l Draw the weak point of the scheme to the traditional E1 time slot, our company specially researches and develops one bunch of mouths and disappears E1 time slot of the function draws and meddles in the scheme. The central end introduces IDM-LSC/S apparatus, mainly realize and convert a bunch of data of No. 31 in a plurality of E1 time slots to IP directly, thus only need to replace the innumerable trouble with a net thread; And can send to any place and pay and control through the data of controlling the power of IP network; As to adopting the users of many bunches of cards originally, utilized the fictitious procedure that our company offered, can become bunches of mouth while being fictitious directly IP, needn’t change, control software, direct application. l Topological picture of concrete group’s network l Strong advantage of the scheme l This scheme has simple project, group’s network flexibility, the data are gathered reliably, the real-time character is good, easy to operate, easy to maintain, apt expanding, such advantages as dependability high, compatibility and opening are good, the details are as follows: l Central computer lab can 64000 string mouth together, concentrate, reach first place control at most through the intersection of IP and network; l Can control E1 time slot the data to convert to IP directly, needn’t convert to RS232 first, and then convert to IP; l Nodal the intersection of E1 and time slot of end draw apparatus, can offer 8 No. serial interface, most loud 8 kinds of satisfied different business data at most. Meet with l the control data of many kinds of different kinds of apparatuses concentrate on gathering in a computer lab; l The serial interface accords with RS232, RS422 and RS485 relevant standard, has been carried on a bunch of data transparent and transmit, can not accept the bus way that l is the same as. The interface offers 19200bps self-adaptation under speed; l The intersection of in the center and IDM-LSC/S of end, at most can support 4 the intersection of Ethernet and port of person who exchange, all right grades of antithetical couplet, save the use cost of Ethernet exchanger for users; Direct self-adaptation of crossing of ETH rabbit line; Interface 10M/100M of Ethernet, the whole / half duplexing self-adaptation
l Support TCP/IP agreement to include: ETHERNET, ARP, IP, ICMP, UDP, TCP, HTTP, SNMP; l Transmit and wrap up and seek the location it because of IP address, can pass network equipment such as the exchanger, router; l Can through the intersection of Ethernet and the intersection of cause for gossip and the intersection of procedure and upgrade of the software of apparatus now, help, guarantee user receive newest and most complete function; l The working way can choose TCP customer end, TCP server, UDP, this port, goal IP and port can be presumed; l Users’ application program can communicate through the following ways and the apparatus: 1. Use Socket to carry on the communication; 2.Bunches of software of invention which our company developed; l Because the specialized network management software function of WEB, realization, to the communication office base station The focis of controlling information and bearing the weight of the network is maintained and managed, the software is practical, it is convenient, reliable. l Technical requirement, realizing that explains l in detail in principle for the circuit part of the products E1 One bunch of mouths disappears the server ‘ IDM-LSC/S l Apparatus function One bunch of mouths of l E1 restrains the server to convert a bunch of data of No. 31 corresponding to 31 time slots of E1 to Ethernet data, realize that will control the data to connect to user’s LAN directly, can reduce the connecting wire greatly, improve the dependability of running greatly, solve and transport and link strength weakly and transporting and linking the contradiction of great work load. l Apparatus appearance

l Structural block diagram of the apparatus principle l Realize the principle l The apparatus receives E1 yard flowing from E1 mouth, branch off one bunch of mouths yard out and flow from it, after CPU bales, send out from Ethernet mouth; The data packet that will be received from Ethernet mouth at the same time is become one bunch of mouths yard by CPU bale breaking, reply, receive the intersection of E1 and yard flow, send out from the intersection of E1 and mouth, one apparatus can punish 31 No. bunches of the intersection of port and data. l The apparatus main function module includes: CPU subsystem, Ethernet data interface module 4 Ethernet ones , E1 interface module, FPGA reply and branch off the system, network management to dispose the module of interface. l The time slot is drawn and inserted in the apparatus IDM-8S/2S l Apparatus function l The time slot drew and can support No. RS-232/422/485 business 8 to draw several continuous time slots to the greatest extent from the interface of up E1 to insert in the apparatus, it is direct that the surplus time slot keeps up E1 and down E1; Many sets of apparatus or other relevant apparatus this too can go on magnitudes of antithetical couplet, every node take up several time slot respectively, can connect 31 nodal data to assemble to a 2M passway of central point to transmit to the greatest extent. Apparatus suitable for transmit the intersection of portfolio and little, the intersection of business and replying, spending transmitting at same E1 under different node that separate at the space ‘ Control information such as being much nodal ,Improve the utilization ratio of E1 resources effectively, reduce the quantity of the apparatus and simplify the network structure. Apparatus this can connect the public E1 network down the intersection of E1 and circuit, can also E1 can collect and insert, come with other the intersection of apparatus and public network in E1 of E1 through the intersection of user and self-defining time slot walk. Complete physics is isolated between E1 falling and one bunch of mouths. l Apparatus appearance l Structural block diagram of the apparatus principle l Realize the principle l E1 port ‘ Upgo and fall Design to need the network of the sub speed signal of the top and the bottom, come from up the intersection of E1 and signal take down or insert, can continue fall and transmit by some sub the intersection of speed and signal, make the apparatus finish the relay-operated function. E1 interface possesses the direct function of electricity. l The apparatus main function module includes: FPGA subsystem, E1 interface module, bunches of interface module, MCU dispose the module of interface. l The mode l characteristic based on apparatus of group’s network, can well cooperate with the communication office base station Set up one in monitoring system, mutual network of two-way data, to the communication office base station Power apparatus and environment concentrate on controlling, realize telemetering measurement, shake the letter, shake adjusting, remote control, looking at five distant functions at a distance, can also carry on real-time control to the power apparatus through it. Centre the intersection of end and apparatus with communication of monitoring system adopt way that IP make, apt to realize, row one, subregion to a large number of the intersection of control and station, adopt differentiated control. Below, functioning as several figures to the network way of the real application group proves. l BTS Take the time slot to draw the scheme of the function with BSC l BTS Collect the function without the time slot, BSC has scheme that time slot collects the function l BSC Collect the scheme of the function with BTS without the time slot

l The transmission network passes the scheme of a chain network of independent group E1

The l WEB -type network management disposes the system l The working technique is that IP address of the input IDM-LSC/S apparatus comes to visit the apparatus to combine its parameter of arrangement in IE browser, if does not know IDM-LSC/S apparatus IP, can set up the software to get through operating the apparatus, must guarantee the computer IP and IDM-LSC/S apparatus amended IP in the same network at the same time. l WEB Type network management last system can last information whether it is following l Systematic information: The relevant parameter of the display system, can revise the systematic name, the systematic position, system contact; l The state of running: State of running of the display system; l Keep and dispose: Keep or delete the systematic disposition; l The system restarts: Restart the system; l Network configuration: Address and mask to dispose apparatus, default gateway, MAC address of the display system; l Increase users: Increase new users, or revise old users’ password and authority. Systematic acquiescence has 2 users: Admin and l l guest; Admin can carry on any operation, guest can only watch information, can’t revise; l Delete users: Delete an existing user; L RS232 sets up: Set up the relevant parameter of RS232, including work pattern, Potter rate, check-up,etc.; L RS232 information: Reveal the relevant parameter information of all 31 RS232s in a tabular way; L RS232 counts: Reveal No. RS232 data flow all 31 receives and dispatches the statistical information; l The template is disposed: Set up the relevant parameter of a plurality of RS232, including work pattern, Potter rate in batches at the same time, check-up,etc.; l Template information: Reveal the information of all 5 templates; L E1 disposes: Dispose the time slot of E1, PCM mode, reveals LOS of E1, LOF, AIS information. l WEB clear in interface and heart designed, the following picture is shown :

Party A
In some project of transformer substation, what used observed and controlled the device and used RS485 interface bus and control room to communicate mostly inside the station. Because consider factors such as electromagnetic interfering with, electric potential difference,etc. will exert an influence on the stability of RS485 bus in the transformer substation, so with all using the optic fibre to connect while observing and controlling the devices in the control room, the apparatus uses ME-M277-M optic fibre MODEM, and connect all RS485 interface in parallel in the control room.

Topological picture

The products are chosen

That uses Shanghai promises and crosses ME-M277-M optic fibre modulating device in this transformer substation. Series ME-M277 are the multi-functional support asynchronous RS-232, RS-422, the optic fibre modem of RS-485 communication interface. ME-M277 connects the terminal unit RTU of remote To the host computer HOST Or distributed data collecting system SCADA The best choice of the controller, have very high performance-cost ratio. ME-M277 uses ordinary many mould optic fibres, transmitting the distance farthest exceeds 2km; The single mould optic fibre transmits the distance farthest to exceed 40km, the communication speed can reach 460Kbps.

Systematic characteristic

This system selects series ME-M277 for use and adopts the optic fibre as transmitting mediums, can avoid being such as thunder and lightning, wave welling up, electromagnetic interference under the abominable environment effectively To the threat of the quality of data communication, the thunder and lightning that can be saved while using the communication of cable originally at the same time wave wells up and protects equipment investment. All person who select and design according to the intersection of industry and magnitudes of more than standard of device, can meet industrial special requirement of scene fully ‘ For instance high temperature resistant, anti-interference, wide voltage, dustproof defending static,etc. .

l Project background

l The automation of transformer substation is developed on the basis of computer technology and network communication, namely employ automatic control technology, information processing and transmission technology, pass the hard software system of the computer or automatics, replace a kind of automated system that manpower controlled, measured and ran to the transformer substation. Its basic function includes: The data are gathered, the data are calculated and dealt with, restrict and state monitoring, the switch is operated and controlled and locked, exchange information with relay protection, automatically controlled coordination and cooperation, exchange information and and the intersection of deployment and control centre or collect, accuse of centre communicate with the intersection of transformer substation and other automatic device. As to this, Shanghai promised and crossed the communication to offer a project comprehensive automation communication system of hydropower station, can be regarded as one of the solutions of the automatic communication part of the transformer substation.
l Automated system demand of transformer substation
l Some transformer substation puts forward the following demand according to its actual conditions:
l Operate the steady Windows2000 operating system
l Because of the laminal high-speed network structure Lonworks, Ethernet ,The capacity is large, the expanding is strong, many task operating platforms, can offer complete online help
l Demand to adopt and observe and control the device newly, have precision of the instrument, dependability of protection
l Demand to adopt the unit type case structure of strenghthened type machine, and resist and shake, resist the electromagnetic interference to design, can disperse and can install on the high-pressure cabinet the integrated voltage does not have work that is regulated VQC synthetically , small the intersection of electric current and earthing select line function, have, prevent misoperation from lock the keyboard, control, have it diagnosing and repairing the function by oneself
l Easy to operate, dependability is high, the report form can be set up arbitrarily by the attenbant, it is the resulting printing the function to have finding
l Need adopting the module software design, it is flexible to dispose, offer the communication interface with other producer products, the single computer can finish all communication, function of management; Offer one pair of backstages hotly and sparely to dispose, meet transformer substation’s of the pivot needs
l The system should offer a plurality of RS232/485/422 intelligence interfaces, can connect with such other IDE apparatuseses as intellectual kilowatt-hour meter, direct current source are controlled

l Promise and cross the comprehensive automation communication system solution of hydropower station of the communication

l Promise the automatic communication system of transformer substation offered to cross the communication and collect measuring, the signal, protection, control, moving far, managing as an organic whole, meet the requirement of the transformer substation on duty of anyone or nobody of communication system of comprehensive automation, 35KV following protection observe and control the device and can be dispersed and installed in turning on or off the cupboard high-pressurely in order to save some cables, building construction. This system is suitable for 110KV and the following comprehensive automation communication system of transformer substation, generate and change group’s protection, WCB-110 factory with the customer WFB-100 by can form the automated system of power plant to protect togethering. Come to look specifically, this system has the following function:
l Finish the data to gather and deal with, gather analog quantity of the side, digital quantity in real time.
l Monitor the function, have main wiring diagram, trend picture, load curve, voltage excellent picture, real-time data revealing, information record of transformer substation, only allow alarm,etc. to reveal.
l Automatically control and regulate, keep the historical record, can go on to every operation state and network communication state of dispersing the unit examining.
l Operate the ticket, operate class’ annals to make the function
l Can condenser,etc. tor,etc. look over and revise, throw and retreat to protect the apparatus to circuit, voltage transformer, feeder, condenser,etc. t the definite value of the protector long-rangely long-rangely in protecting the soft pressing plate, adopt series ID to unify the hardware platform, it is steady, reliable to run.
l Promise and cross the communication to require, advises customer’s system to adopt the distributed structure to the customer’s above-mentioned system, thus realize the flexible disposition, has many kinds of installation modes, can already adopt and disperse installing, can also concentrate the group on rejecting. The complex automatic system structure of the whole transformer substation is shown as in Fig. 1.

A transformer substation of comprehensive automation communication system principle pictures of Fig.

l The system runs and the customer appraises

l After putting into operation formally, in the comprehensive automation communication system of transformer substation, controlled data gathering, control and communication that the main website is responsible for all protectors of transformer substation. Controlling the main website generally adopts two computers to be both as backing up, it is redundant to be both as, realize the switch of one pair of machines automatically. As controlling the main website, this is because in the transformer substation of the high voltage grade, should monitor the running situation of the whole transformer substation constantly, while adopting a computer as the computer of main website, when breaking down or needing to upgrade situations such as the software,etc. at the main website, then the transformer substation can’t make normal progress. So should adopt two computers of main website to be both as backing up, thus improve safety coefficient greatly. Move main website generally far and deployment carry on telecommunication, and but and other the intersection of communication and person who manage of producer carry on communication.
l Through practical application, can be thought, promise this solution of crossing the communication and have characteristic comparatively stressed in several following respects:
l High stability: Because of adopt high reliable sigh cross the original packaging apparatus of communication to make and control the main website and move the main website far, have strengthened the stability of the system
l It is disposed that flexible: Adopt the distributed structure, it is flexible to dispose;
l It is simple to install: Many kinds of installation modes, can adopt and disperse installation, can also concentrate the group on rejecting;
l High cost performance: Promising and crossing worker’s accusing of communication apparatus has better expansion, use various communication ways rationally, optimize the cost of the whole system.
l On the whole, after this scheme is put into operation, solve a lot of practical problems, have improved the original work pattern of transformer substation, has raised the efficiency of transformer substation greatly.
l Shanghai promise exceed communication technological Co., Ltd. whether the intersection of China and one speciality research and develop, produce, sell optic fibre and the intersection of data and the intersection of communication and products, the intersection of industrial control and the intersection of communication and high-tech enterprise of product. Lie in famous Hongqiao development zone of Shanghai, it is a specialized optic fibre and products scheme Shang and system service provider that the engineering accused of the accession equipment of communication.
l The company is strategic as the undertaking of the company by founding famous brand, popularizing the outstanding products, propagating advanced technology, offering the systematic scheme since established, for the purpose of offering the innovative products promoting the development of industry upgrading, by offering ” speciality, system, in time, effectively ” Service start an undertaking idea. Throw oneself into national photo-communication and spring tide of the photoelectron industry actively, in order to make photo-communication and photoelectron industry of China move towards the world arena as soon as possible, contribute one’s own intelligence, hearty and persistent.
The company has a young and promising but experienced high-quality research and development, sale and management team, through the active and diligent and service for many years, we have accumulated a large number of customer resources in trades such as telecommunications, electricity, broadcasting and TV, finance, education, public security men,etc., our products obtained the trade customer’s extensive approval and favorable comment too. Meanwhile, we accumulated a large number of project experiences in service of the system such as the intellectual broadband network of optic fibre, electricity, industrial automation network, intellectual network of Residential Area of broadband, capable of standing and organizing implementation of in very strong scheme.
l It is promising and crossing company’s set undertaking to develop, revitalize national optical-fibre communications and photoelectron industry, also every one promises and crosses people’s duty-bound responsibility. For this reason, all trillion exceed people in learn, keep forging ahead, absorb advanced scientific and technical knowledge and remarkable experience of management outside the China constantly, work hard, unite to advance courageously!

The system requires
In some transformer substation, the computer protector of Party A uses 100M Ethernet interface and central control room to communicate. For guaranteeing on security,it require transmission equipment for can pairs of ring, since Ethernet optic fibre exchanger that be healed, and put forward the requirement to the exchanger performance: Require for 70 ℃, heal time can’t greater than 500ms, pairs of the intersection of power and redundant mere mouthfuls of LOS and power cut out call the police while being high temperature resistant.

Network way of the group
Use one pair of rings from healing Ethernet exchanger, do an annular chain. Use a MIE- 5208M in every communication switch cupboard surrounding the exchanger as from the mode, use a MIE- 5208M as the main mode in the control room. All nodal MIE- 5208M apparatuses can connect the relay on their alarm relays of interface inside the station, and control warning device movements by relay.

Topological picture


About products
Series MIE-5208 are surrounding Ethernet exchanger, adopt the latest optic fibre technology in the world, combine and employ the widest Ethernet technology at present, one collect photo-communication, Ethernet and insert the integrative comprehensive communication unit, the intersection of power matching network and automation, industrial automation, SCADA specially ‘ The data are gathered and controlled Wait for industrial the intersection of trade and the intersection of data communication and field and design.
MIE-5208 series support the automatic detection of the cycle of optic fibre and rotate surrounding Ethernet exchanger, full load makes the trouble and resumes time <300ms. MIE-5208 one pair of rings heals Ethernet by oneself only the carrying machine supports the mere mouth of 2 cycles. Various complicated optic fibre networks of can set up the chain shape, annular ing etc.. The apparatus uses one grade of components of industry to produce, it is redundant to support the power, accord with one grade of designing requirements of industry.

Scheme characteristic
In the computer of this transformer substation protects the communication scheme, have used 8 industry one grade of network management type redundant Ethernet exchangers of series MIE-5208, because has adopted reliable pairs of rings to heal technology by oneself, while transmitting damaging or a certain switch cupboard of optic fibre and cutting out, will not influence other apparatuses. And while the above-mentioned situation takes place, MIE-5208 can offer the relay to call the police, enables user to understand trouble state and deal with in time, minimize the influence that users produce for communication trouble.

Employ the case partly:
Electric affair project of China Railway Bureau one group
Electric designing institute of Ningxia
Coal Zheng group transformer substation comprehensive from the system
Systematic improvement project of long-range station of transformer substation of Lianyun Harbour of Jiangsu
Transformer substation optic fibre system of power supply administration of Rui’an
Electric wire netting project communication system of mountains and rivers of Zibo of Shandong
Electric wire netting project communication system of Shandong Mount Tai village
Eight steel electric wire netting project communication systems of Xinjiang
Electric wire netting project communication system of abundant base of Yancheng of Jiangsu
Monitoring system optic fibre communication engineering of four collieries of Taiwan of group of coal industry of Da Tong
Fiber optic communication system of transformer substation of mountain of 35KV Zhoushan Qu
Factory’s base station fiber optic communication system of signal of railway of Shanghai
Tang communication system of the steel electric wire netting project
Two transformer substations of optic fibre systems of Wenzhou 110KV Jing
The door of Wenzhou 35KV mountain is turned into the optic fibre system
Present the south with respect to turn into the optic fibre system in Ningbo 220KV
Wenzhou 110KV east small island changes the optic fibre system
More cases please consult: /anli.asp

Second, brief introduction of demand:
Want XX in the communication of municipal power office and its subordinate power plant, the power office needs through having SDH transmission systemming that carry on communication now with the power plant, there are the following several respects on requirement for the communication system:
1.Collection and feedback of the real-time data: Type this employ data quantity little, but dependability expect much, need, prolong when the the relatively little one. Generally gather the apparatus for the data with RS232 interface.
3.The pronunciation communication is required: The real-time pronunciation communicates while working in power plant and power office.
4.Office automation network: The power plant is a part of electric enterprises, production management, even everyday control such as the attendance are the important links of electric business administration too. Guarantee the power plant can use Ethernet and power office to carry on communication through the existing SDH optic fibre transmission system.

The network way of third, group:

The power plant can use and can support the optic fibre communication equipment that the business of many kinds of data replies, and can carry on the factory to stand with the communication of the office end through the existing SDH transmission system. So the apparatus must meet the following conditions:
Can transmit with existing SDH
Support a bunch of mouth, pronunciation, Ethernet,etc. business of data
Guarantee the stability of communication
Can adapt to the abominable environment in the power plant

Fourth, products are chosen

The intersection of communication and products that user choose synthesis produced to promise only ME-PCM4P2E2R of carrying etc. for Shanghai. This apparatus can offer telephones of No. 4 to user, office end and user’s end mode, can insert the office end program-control exchanger directly. The Ethernet interface of No. 2, can make the computer of the power plant work the network and network of working of office end realize interconnectedly. The products employ the topological picture as follows:

Fifth, scheme advantage
Pay the transmission of many business data in SDH transmission system existing in use, while offering to user greatly conveniently, also save the unnecessary apparatus for users. Because this scheme only needs two PCMs to connect and realize, has saved the equipment cost for users on one hand, on the other hand has even because the potential trouble that the node of the apparatus cause more reduced greatly.

Comprehensive access scheme on the basis of industrial Ethernet platform Electric communication network new mode —Comprehensive access scheme on the basis of industrial Ethernet platform
l With mere communication, network swapper, successful application in IT industry of microelectric technique, the business of electric communication network is no longer initial pronunciation communication and narrowband business of transmission,etc. that the dispatching of power netwoks controls the signal in real time, but develop into and bear the weight of the dispatching of power netwoks to automize at the same time gradually, electric marketing is automized, the distribution network is automized, access of multiple operation such as the automation and office automation, video controlling and video conference, IP telephone and other data transmission of relay protection of transformer substation.

Characteristic of electric communication
The business of l electric communication can divide two big classes of business and transaction management business into the key and run. The key runs the business means that moves the signal, data and gathers and monitors control system, administrative system of energy, relay protection signal and deployment telephone etc. far; The amount of information of the business is not big that the key runs, but expect very much to the real-time character, accuracy, security and dependability of communication; Each demand as businesses other and separate, and businesses other last independence information system merged alternately; The business of transaction management includes administrative telephone, conference telephone, meeting TV, management information data,etc.. Affairs managerial business business various in style changing fast and communication is large in flow, must carry on the business that broadband transmits.

L has been leading the innovative tide of information revolution all the time in technical application of information based on network since the end of the 20th century. Meanwhile, information technology has already become the important drive factor of global economic development now. “Information promotes the development of trades “Strategy is the correct developing direction of a power industry in this innovation.

l Electric IT employs and involves the data, speech and video. Different application types have different characteristics, and need different network environments. For example, administrative telephone, deployment telephone and call center of the power industry are the real-time speech application, demand to be low to delay and low and shaky, electric DAS dispatch automated system It is the network system which expects much dependability, electric OA office automation with the relay protection signal It is the application of data, it does not have strict requirement in delaying and shaking, but lose the data packet and one yard of rate is expected relatively much by mistake, so need net support of broadband. However, because of the consideration of the cost and reason of the management respect, we needn’t be that different application construct different networks, especially more new application will emerge constantly, this kind of method will not possess the expansibility without suitable for the development that the power industry IT employs. So, the power industry needs to construct a integrated network, this network can offer good service support and expansibility; And will not cause the decline of every index of the system because of a comprehensive network, can separate two major business on the floor of the terminal device, so accord with the requirement that National Electricity Co. deployment administration networks separately too.

l The transmission platform is that electric IT employs the infrastructure in the bottom, determines the expansion quality of the electric communication network. So, the transmission platform must possess enough expansibility, in order to support the increasingly many electric network IT application; In addition, the foundation of communicating as the electricity, the transmission platform can offer supreme dependability; And from the viewpoint of long-term, the technology of transmission platform chosen must be the most economic.

l In the power industry, it is an irrefutable fact that the great majority are applied to the near future and will be based on the network. In view of future ISP ISP Application, transmission technology is very crucial. How much bandwidth nobody can predict it to take in the future. Review the development of the network, the broadband network is a present development trend, because one Mole of laws can’t already adapt to the growth of all network capacity, and increasingly much network application needs more bandwidth.
l National the intersection of electric wire netting and Company pay close attention to to the intersection of power industry and development of IP, already develop the intersection of IP and plan of technology in power industry, mention the important agenda comes up; According to the national electric wire netting department [2003 ] File No. 285, <>China has proposed the explanation regarding IP technology popularizes and applies in electric enterprises clearly;
Propose in 2005 goal:
L ” builds up a national electric deployment data network based on IP technological system, realizes the effective segregation of different safe grade application systems; Every regional dispatching of power netwoks of China employs the network coverage rate of the system data to be more than 85%. ”
In China proposes
L ” studies IP network application technology. Study the intersection of IP and planning of network, the intersection of group and network and safe mechanism, develop, meet power system requirement, dependability high having good 2 and 3 exchangering of performance-cost ratio. Set up the international agreement telephone VOIP based on H.323 international standard system The business supports and the administrative system.
l Study on the basis of the multimedia technology of IP dataflow, realize the teleeducation, in training of line, video conference, real-time data transmission technology; Go on because of the power line signal carrier PLC Digitized for Residential Area, power supply load management and quality analysis, power consuming IP network application study where information gather. ”

In sum, we think the power system is built because of mere swapper IP Broadband getting more essential very.

IP data communication and traditional communication

l Because the high-speed development of present information science and technology, from the appearance of the first computer network of the world of the beginning of the 1990s, wide application of computer till now, CPU whom chip deal with take at a high speed, popularization and constant quickening to extend speed of Internet, stress and prominent further in the development trend of the information networking that has all become today not fighting for the fact, digitization of unity, networking, enterprise’s data information management and administration which enterprises produce, run, need enterprises to achieve the swift and high-efficient goal by network interconnection, in order to facilitate enterprises improving the competitiveness, creating greater economic benefits; IP technology exactly realizes the networked development of many kinds of information business, raises the network to transmit a basic fundamental of efficiency and multimedia demand; IP technology suitable for the networked demand for development has already become foundation and direction of information processing in the future.

If l sets up SDH synchronous digital serial networks, because this network belongs to the circuit type apparatus, unfavorable to happening suddenly the transmission of the business, and valuable bandwidth resources can not get sufficient use; In addition the network fabrication cost which set up the same scale should be higher than IP network. The following are the comparison of relevant indexes of two networks:

IP Network and synchronous digital serial networks SDH Contrast tabulation Serial number Project name IP network SDH network Remarks 01 transmits the bandwidth and shares the bandwidth 10/100/1000 the business happen suddenly and transmit the suitable topological structure of 03 networks such as MIS data a bit to a bit more arbitrary point-to-point 04 more arbitrary in M02 Channel the intersection of utilization ratio and the intersection of level and 05 data flow control all right for 06 the intersection of construction cost and low high 07 more than business to insert, insert inconveniently in full while being convenient synthetically, words, Fig. 08 groups of network flexibilities fine generally 09 intelligent to transmit quality last 11 at LANs regional surrounding network meaning switching over time 12 online security relatively generally carefully carefully for 10 times well Mean, connect with public network, 13 transmit real-time character mean area 14 transmit index to be generally easy to mean 15 range charge, 16 pay well beyond the the whole province remotely in the grades of network carefully carefully Change and seek the location well Investment analysis of using IP products to network

l Investment analysis: From contrast index, find out transmit index to be close basically, transmit index, matter two when network range is in an area while being above-mentioned; But the difference of two is relatively far on the construction cost; The following picture:




The unit construction cost of l SDH network increases in pairs because of PCM apparatus, therefore the more substations are, the unit construction cost is the higher; On the contrary, because the topological structure of IP network can be that one, to some waying more, because of sharing the cost of the apparatus of main website when the apparatus increased in the substation, in addition the price of IP products is relatively low, so the unit construction cost of IP system wants the obvious construction cost less than SDH network. l Comprehensive communication access platform that industrial Ethernet which technological Co., Ltd. of the communication develops exchanges that Shanghai promises to exceed, transmission of operation business, things business of bearing the weight of the electricity that can be effective, can satisfied with the requirement for broad band, much business development of the interest, a kind of prospect is very broad and but accords with the products of the information-based developing direction.
l This system forms the transmission platform of the network with industrial Ethernet products, and can insert various affairs type business directly, finish moving data, distribution data, continuing the transmission that protected the data etc. far. L IP business is main business lines of the power system, cover various data such as moving, protection, electric consumption, MIS,etc. far of the power system, so the comprehensive communication platform based on industrial Ethernet will become the electric communication main mode of future.

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