CN206077066U - Distribution substation's transformer energy saving control system - Google Patents
Distribution substation's transformer energy saving control system Download PDFInfo
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- CN206077066U CN206077066U CN201620937661.1U CN201620937661U CN206077066U CN 206077066 U CN206077066 U CN 206077066U CN 201620937661 U CN201620937661 U CN 201620937661U CN 206077066 U CN206077066 U CN 206077066U
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Abstract
Distribution substation's transformer energy saving control system that this utility model is provided, assembles piezoelectric transformer group including the N being arranged in distribution substation, often assembles 1# high-voltage boards and 2# high-voltage boards that piezoelectric transformer group includes being connected with high voltage bus；High-voltage switch gear is provided with the 1# high-voltage boards and 2# high-voltage boards；Connect intelligent load detection distribution control device between the 1# high-voltage boards and 2# high-voltage boards；Connection transformer on high-voltage board, transformator connection low-voltage cabinet, low-voltage cabinet connect low-voltage compensation cabinet, low-pressure line-outgoing cabinet, the connection load of low-pressure line-outgoing cabinet by bus-bar；Also include low voltage liaison net cabinet；Intelligent load detection distribution control device includes detecting the load detecting metering units of 1# transformators and 2# transformer loads in distribution substation.Using this utility model of above-mentioned technical proposal, by the high-voltage board table indoor location intelligent load detection distribution control device at per group, control conversion transformer working capacity, it is to avoid low load with strong power and high load with small power, realize distribution substation's unmanned.
Description
Technical field
This utility model is related to a kind of distribution substation's transformer energy saving control system.
Background technology
Distribution substation is the important ingredient of power system, is the important step directly powered to terminal use, extensively should
For the terminal such as industry, agricultural, the community of city and country energy field.According to statistics, national distribution transformer electric energy loss about 170,000,000,000 thousand
Watt-hour, equivalent to 1.7 times of pipe of reinforced concrete at Three Gorges Power Station whole year generated energy, electric energy loss is extremely serious.As the important measures of energy-saving and emission-reduction,
In recent years, China has also put into effect multinomial policy, promotes efficient distribution transformer application and industry development.But in distribution transformer section
Energy control aspect entirety efficiency level is still low, and energy-saving potential is huge, therefore, research is a kind of safe and reliable, economic and practical
Distribution substation's transformer energy saving control method, for General Promotion China distribution transformer operational energy efficiency level, becomes to reducing distribution
Depressor electric energy loss, promotes energy-saving and emission-reduction environmental protection significant.
At present, existing distribution transformer control has the drawback that：
Most of distribution substation's transformer capacities are changeless, and in actual motion, Demand-side electric loading is very
Wide fluctuations, as community resident's household electricity, when being exactly typically morning peak and evening peak, power load is larger, on worker one
Class goes away, and whole day has more than 2/3rds time transformators all in unloaded and light condition；The work that some loads are changed greatly
Ore deposit enterprise, is exactly the Large Copacity distribution transformer also charging operation always when with electric loading very little, causes low load with strong power and light
Carry or unloaded, waste electric energy, be unfavorable for environmental conservation.
Particularly real estate residential area newly developed, sales cycle are long, owner move in the time do not concentrate, occupancy rate it is low,
Transformer loss takes electricity ratio greatly, and before electric company's charge is transferred in electricity consumption, average electricity price is high, is not that property is sustained economic losses, is exactly
Conflict with owner.
After electric company's management charge is transferred in electricity consumption, only contradiction transfer, wasting electric energy similarly increases power supply
Company operation cost, affects electric company's economic benefit.
Utility model content
The purpose of this utility model be that provide it is a kind of can wide variety of urban and rural power grids terminal power distribution one kind match somebody with somebody
Electric institute's transformer energy saving control system, is immobilized with solving existing distribution substation's distribution transformer capacity, with electric loading very
When light, Large Copacity distribution transformer also charging operation always, low load with strong power, transformator electric energy loss are big, waste the energy, unfavorable
In the problem of environmental conservation.
This utility model is employed the following technical solutions：
Distribution substation's transformer energy saving control system, assembles piezoelectric transformer group including the N being arranged in distribution substation, and N is not less than
1, it is described often to assemble 1# high-voltage boards and the 2# high-voltage boards that piezoelectric transformer group includes being connected with high voltage bus；The 1# high-voltage boards and
High-voltage switch gear is provided with 2# high-voltage boards；Connect intelligent load detection distribution control between the 1# high-voltage boards and 2# high-voltage boards
Device；
Connect 1# transformators on the 1# high-voltage boards, 1# transformators connection 1# low-voltage cabinets, 1# low-voltage cabinets are connected by bus-bar I
Connect low-voltage compensation cabinet I, low-pressure line-outgoing cabinet I, the connection of low-pressure line-outgoing cabinet I load I；
Connect 2# transformators on the 2# high-voltage boards, 2# transformators connection 2# low-voltage cabinets, 2# low-voltage cabinets pass through bus-bar II
Connection low-voltage compensation cabinet II, low-pressure line-outgoing cabinet II, the connection of low-pressure line-outgoing cabinet II load II；In the 1# low-voltage cabinets and 2# low-voltage cabinets
It is provided with low pressure lead-in circuit breaker；
Also include low voltage liaison net cabinet, the low voltage liaison net cabinet is loaded I, connected by bus-bar II by the connection of bus-bar I
Load II；Low voltage liaison net chopper is set in the low voltage liaison net cabinet；
Intelligent load detection distribution control device includes detecting 1# transformators and 2# transformer loads in distribution substation
Load detecting metering units.
The intelligent load detection distribution control device also includes：
Receive the programmable display control unit of the signal of load detecting metering units detection；The programmable display control
The LED display unit that unit is included single-chip microcomputer and is connected with single-chip microcomputer；
Receive the load assignment control of programmable display control unit data；
Show the running status display unit of load assignment control running status.
The load assignment control includes control circuit, and control circuit is sequentially connected by being input into photoelectric isolation module
Running status display unit and input terminal, the control circuit passes sequentially through output photoelectric isolation module and relay module connects
Connect lead-out terminal, the LED display unit that the single-chip microcomputer of the programmable display control unit is connected by LED drive circuit；
The load detecting metering units include two processors, and each processor passes through a current signal isolator
One transformator of connection.
Also include alarm device, the alarm device includes the substation central signal remote alarmss communicated with distal end
Device, the substation central signal remote alarming device are communicated with distal end by remote communication module.
The 1# low-voltage cabinets and 2# low-voltage cabinets connect an intelligent power monitor controller respectively；Intelligent power monitor controller detect into
The information of the three phase mains of line voltage, and send information to intelligent load detection distribution control device.
The intelligent power monitor controller includes the power sense circuit of the primary voltage for detecting low voltage incoming line cabinet, power detecting
Circuit connects the A phase, B phase, C phase power supply and zero line of primary voltage respectively by binding post.
The intelligent phase sequence monitor controller of connecting detection two-way power phase on the low voltage liaison net cabinet.
The intelligent phase sequence monitor controller includes
The circuit of testing the phase sequence of the interconnection switch both sides power phase in detection low voltage liaison net cabinet；
The misphase exclusive circuit being connected in interconnection switch closing coil loop；
The misphase warning circuit being connected in interconnection switch alarm relay loop.
Using this utility model of above-mentioned technical proposal,（1）Examine in per group of 1# high-voltage board table indoor locations intelligent load
Distribution control device is surveyed, intelligent load detection distribution control device detects 1# transformators, 2# transformer load sizes respectively, controls
The continuous electric shaft between two high-voltage boards of 1#, 2# high-voltage switch gear, 1#, 2# low pressure lead-in circuit breaker, low voltage liaison net chopper is thrown
Cut combination, conversion transformer working capacity, it is to avoid low load with strong power and high load with small power, realize distribution substation's unmanned；（2）Peace
Dress intelligent power monitor controller, detects power supply and to intelligent load detection distribution control device transmission signal, intelligent load detection point
Intelligent load detection distribution control device program operation is controlled according to intelligent power monitor controller signal with control device；（3）Install
There is intelligent phase sequence monitor controller, detection two-way power phase is consistent, finds misphase locking and reports to the police, prevent misphase from closing a floodgate and thing occurs
Therefore.
Description of the drawings
Fig. 1 is the structured flowchart of system of the present utility model.
Fig. 2 is distribution substation's system diagram.
Fig. 3 is intelligent load detection distribution control device outline drawing.
Fig. 4 is 1# high-voltage board control principle drawings.
Fig. 5 is 2# high-voltage board control principle drawings.
Fig. 6 is 1# low pressure lead-in circuit breaker control schematic diagrams.
Fig. 7 is the wiring diagram of the intelligent power monitor controller being arranged in 1# low voltage incoming line cabinets.
Fig. 8 is 2# low pressure lead-in circuit breaker control schematic diagrams.
Fig. 9 is the wiring diagram of the intelligent power monitor controller being arranged in 2# low voltage incoming line cabinets.
Control schematic diagrams of the Figure 10 for low voltage liaison net cabinet breaker.
The wiring diagram of intelligent phase sequence monitor controllers of the Figure 11 to arrange in low voltage liaison net cabinet.
Figure 12 is intelligent load detection distribution control device schematic diagram one.
Figure 13 is intelligent load detection distribution control device schematic diagram two.
Structured flowcharts of the Figure 14 for substation central signal remote alarming device.
Structural representations of the Figure 15 for substation central signal remote alarming device.
Electrical schematic diagrams of the Figure 16 for substation central signal remote alarming device.
Electrical schematic diagrams of the Figure 17 for the power circuit of substation central signal remote alarming device.
Outline drawings of the Figure 18 for the intelligent phase sequence monitor controller of Figure 11.
Figure 19 is the detection circuit diagram of intelligent phase sequence monitor controller, wherein（A）For the detection control being connected between A phases and a phases
Circuit diagram processed,（B）For the detection electric operation control circuit figure being connected between B phases and b phases,（C）For the inspection being connected between C phases and c phases
Survey electric operation control circuit figure,（D）Misphase exclusive circuit figure；（E）Misphase warning circuit figure.
Figure 20 is the profile wiring diagram for being connected to Fig. 6 and Fig. 8 intelligent power monitor controllers.
Detection circuit diagrams of the Figure 21 for intelligent power monitor controller, wherein（A）For the power supply inspection being connected between A phases and zero line
The circuit diagram of control circuit is surveyed,（B）The circuit diagram of the power detecting control circuit being connected between B phases and zero line,（C）For connection
The circuit diagram of the power detecting control circuit between C phases and zero line；（D）To detect H circuit diagrams,（E）To detect Y circuit diagrams.
Detail views of the Figure 22 for Figure 12 part As.
Detail views of the Figure 23 for Figure 12 part Bs.
Detail views of the Figure 24 for Figure 12 C portions.
Detail views of the Figure 25 for Figure 12 D parts.
Detail views of the Figure 26 for Figure 13 part As.
Detail views of the Figure 27 for Figure 13 part Bs.
Detail views of the Figure 28 for Figure 13 C portions.
Detail views of the Figure 29 for Figure 13 D parts.
Specific embodiment
As depicted in figs. 1 and 2, this utility model provides a kind of distribution substation's transformer energy saving control system, and it will match somebody with somebody first
Electricity the distribution transformer of more than two be grouped, be divided into one group per two, be divided into N and assemble piezoelectric transformer group, per group
Distribution transformer group includes the 1# high-voltage boards being connected with high voltage bus and 2# high-voltage boards, connects 1# transformators on 1# high-voltage boards,
1# transformators connect 1# low-voltage cabinets, and 1# low-voltage cabinets connect low-voltage compensation cabinet I, low-pressure line-outgoing cabinet I, low-pressure line-outgoing by bus-bar I
The connection of cabinet I load I；Connect 2# transformators on 2# high-voltage boards, 2# transformators connection 2# low-voltage cabinets, 2# low-voltage cabinets pass through bus-bar II
Connection low-voltage compensation cabinet II, low-pressure line-outgoing cabinet II, the connection of low-pressure line-outgoing cabinet II load II；Low voltage liaison net cabinet is connected by bus-bar I
Connect load I, II is loaded by the connection of bus-bar II；1# transformators are connected with 2# transformators, and above-mentioned low-voltage cabinet and low pressure are mended
Repay the power distribution cabinet that cabinet is routine in prior art.High-voltage board, transformator, the connection of low-voltage cabinet connect for conventional electrical.It is above-mentioned
Low-voltage cabinet include low voltage incoming line cabinet, can use as low voltage incoming line cabinet.
On 1# high-voltage boards and 2# high-voltage boards, intelligent load detection distribution control device is connected with.Intelligent load detection point
May be disposed in the instrument room in 1# high-voltage boards or 2# high-voltage boards with control device.Intelligent load detection distribution control device is automatic
Detection 1# high-voltage boards and 2# high-voltage boards connection load, high and low voltage switch state, control high-voltage board in 1# high-voltage switch gears,
2# high-voltage switch gears, 1# low pressure lead-in circuit breakers, 2# low pressure lead-in circuit breakers, low voltage liaison net chopper are between two transformators
Not power-off electric shaft switching is combined, and conversion transformer working capacity, it is to avoid low load with strong power and high load with small power realizes distribution substation
Unmanned, switch cubicle automatic energy storage, combined floodgate, separating brake, distribution substation's intelligent transformer power-saving running.
If Fig. 3 is the profile wiring diagram that intelligent load detects distribution control device, LED display unit, fortune are provided with
Row status display unit, input terminal, lead-out terminal 004.
Load detecting metering units gather the electric current of the load I and load II of 1# high-voltage boards and the connection of 2# high-voltage boards, then
By two processors（IC1、IC2）Carry out signal conversion.Wherein processor 1C1 receives load by current signal isolator T4
The signal of the 1# transformators of detection signal harvester collection, processor IC2 receive load inspection by current signal isolator T3
Survey the signal of the 2# transformators of signal pickup assembly collection.Processor IC1, processor IC2 are that two high-precision two-way DPS are high
The CA/AD digital-to-analogue conversion process chips of precision, such as chip of existing model CS5460, CS5460DPS high accuracy and band
There is serial line interface IC chip, the two-way serial ports comprising two transducers with microcontroller communication, it contains two increasings
Beneficial programmable amplifier, two highpass filters, with system calibration and virtual value computing function, to provide transient data sampling
And computation of Period result, automatic detection judges signal polarity, program self adaptation computing, serial ports and programmable display control unit
The I/O port connection of single-chip microcomputer IC3.
In profile wiring diagram shown in as shown in Figure 3, load detecting metering units pass through 104 and 105 two input terminals
The load current of collection 1# high-voltage boards, then the primary side winding of the current signal isolator T4 in Figure 12, the vice-side winding of T4
After second resistance in parallel and the 19th electric capacity, connect IN+, IIN- port of processor 1C1 respectively, by 204 and 205 two
Input terminal gathers the load current of 2# high-voltage boards, then current signal isolator T3 primary side windings in Figure 12, secondary around
Connect IC2 IN+, IIN- ports respectively after group parallel connection R1, C18.
Programmable display control unit includes single-chip microcomputer IC3, is connected with LED display circuit on single-chip microcomputer IC3, and it also includes
Programmable device, signal modulation circuit, serial communication circuit etc., single-chip microcomputer IC3 mainly realize the digital independent of whole system, calibration,
Control, signal, communication and man-machine mutual handing-over mouth carry out the functions such as definite value setting and modification.
As shown in figure 12, the single-chip microcomputer that may be programmed display control unit is mono- using high-performance AVR of model ATMEGA64
Piece machine, it is by the LED drive circuit of model CH451（That is LED number pipe driving chips）LED display circuit is driven to be shown
Show.The PB mouths of single-chip microcomputer IC3 and the serial SPI interface of LED drive circuit IC4.Single-chip microcomputer IC3 is capable of achieving two-way or single channel electric current
Calibration, measurement and virtual value read and sampling A/D chip internal register initial work, and by piece select port CS1,
CS2 realizes the time-sharing operation of the chip to two panels respectively, while co-used chip FPDP clock port.Single-chip microcomputer IC3 reads
Compare with setting value after two-way electric current and after internal processes detection, send LED number pipe driving chip CH451 to drive by data/address bus
Dynamic LED display unit shows the setting and modification of current value and the definite value carried out by Man Machine Interface, single-chip microcomputer IC3's
PB0, PB1 by data/address bus KD1, KD2 for connecting driving successive load assignment control, while during work on panel with
Two LED of LED drive circuit connection（HIGHTLED2、LOWLED2）It is luminous.
As shown in figure 13, load distribution control device includes control circuit, and control circuit uses single-chip microcomputer as processor,
The peripheral circuit of external connection single-chip microcomputer, connection input photoelectric isolation module in control circuit, input photoelectric isolation module connection
Running status display unit, running status display unit connection input terminal；Control circuit is connected by output photoelectric isolation module
Connect and relay module, relay module connection lead-out terminal.
As shown in fig. 13 that, the single-chip microcomputer of control circuit using model ATMEGA64 single-chip microcomputer U81, input photoelectricity every
Include 16 input phototube coupling units from module, be input into Phototube Coupling cells D W1 to DW16 buses connection single-chip microcomputer U81's
PF, PE port；Programmable display control unit output bus connects PB mouths.Output photoelectric isolation module includes 16 output photoelectrics
Isolated location, 16 relays of the K1 ~ K16 in output photoelectric isolated location KS1 ~ KS16 connection relay module.
Running status display unit is connected between input terminal and input photoelectric isolation module, input terminal 210,211
Connecting detection resistance R230, LED light emitting diode D1, photoelectrical coupler U49, LED diode displaying low voltage liaison net cabinets are opened
Off status；Input terminal 212,213 connecting detection resistance R232, LED light emitting diode D2, photoelectrical coupler U50, LED light
Diode D2 shows the on off state of 1# high-voltage boards；Input terminal 214,215 connecting detection resistance R234, LED light emitting diodes
D3, photoelectrical coupler U51, LED light emitting diodes D3 show 2# high-voltage board on off states；Input terminal 216,217,218,219
Connecting detection resistance R236, R238, R240, LED light emitting diode D4, LED light emitting diode D5, LED light emitting diode D6, light
Electric coupler U52, photoelectrical coupler U53, photoelectrical coupler U54, are respectively intended to show 1# low-voltage cabinet on off states, 1# low-voltage cabinets
Power detecting Y（With gate circuit）, 1# low-voltage cabinet power detecting H（OR circuit）；The connection inspection of input terminal 220,221,222,223
Measuring resistance R242, detection resistance R244, detection resistance R246, LED light emitting diode D7, LED light emitting diode D8, LED light
Diode D9, photoelectrical coupler U55, photoelectrical coupler U56, photoelectrical coupler U57, show respectively 2# low-voltage cabinet on off states,
2# low-voltage cabinet power detecting Y（With gate circuit）, 2# low-voltage cabinet power detecting H（OR circuit）；By load detecting distribution control dress
Running status is put by LED diode displayings in display window, is easy to tour personnel to observe, understand equipment operation condition.
Microcontroller bus KO1 to the KO16 connection photoelectric coupling isolated arrays of load assignment control, photoelectrical coupler
Output connection relay driving module MC1413, drives FH115F high power relays.Wherein, relay K1, relay K2 are touched
Point connection binding post 106,107,108 controls 1# high-voltage switch gears combined floodgate, separating brake respectively；Relay K3, relay K4 contacts connect
Binding post 109,110,111 is connect, 2# high-voltage switch gears combined floodgate, separating brake is controlled respectively；Relay K5, relay K6, relay K7
Contact portion binding post 112,113,114,115, controls 1# low-voltage cabinet energy storing of switch, combined floodgate, separating brake respectively；Relay K8,
Relay K9, relay K10 contact portions binding post 116,117,118,119, respectively control low voltage liaison net cabinet energy storing of switch,
Combined floodgate, separating brake；Relay K11, relay K12, relay K13 contact portions binding post 120,121,122,123, are controlled respectively
2# low-voltage cabinets energy storage processed, combined floodgate, separating brake；Relay K14 contact portions binding post 206,207 exports 1# transformer fault reports
It is alert；The output 2# transformer faults of relay K15 contact portions binding post 208,209 are reported to the police.
As shown in Figure 4, it is the control principle drawing in 1# high-voltage boards.Wherein, 1# high-tension switch cabinets（That is 1# high-voltage boards）It is high
Voltage current transformer leading-out terminal A411, N411 and load detecting distribution control device binding post 104, binding post 105 connect,
The terminals 3 of the manual/auto switch K2 of the connection of binding post 106 control loop；Binding post 107 simultaneously connects primary cut-out combined floodgate
Coil 1FK1 ends of incoming cables；Binding post 108 is attempted by switching winding 1FK2 ends of incoming cables；Binding post 212, binding post 213 connect
Primary cut-out 1FK auxiliary switch normally opened contacts；Binding post 206, binding post 207 connect 1# transformer fault alarm relays
1ZK coils, drive audible-visual annunciator to report to the police on the spot by make contact 1ZK1, and another contact 1ZK2 of fault alarm relay is connected
Central signal case, central signal want that connecting substation central signal remote alarming device realizes remote alarmss, substation central letter
Number remote alarming device is connected with distribution substation staff's mobile phone by remote communication module, by failure condition with note or micro-
The other forms such as letter are reported to the police.
As shown in figure 5, for the control principle drawing in 2# high-voltage boards.Wherein, the high-tension current inductor outlet of 2# high-voltage boards
End A411, N411 and intelligent load detection distribution control device binding post 204, binding post 205 connect, binding post 109
The manual/auto switch K3 terminals of connection control loop 3；Binding post 110 simultaneously connects primary cut-out closing coil FK1 inlet wires
End；Binding post 108 is attempted by switching winding FK2 ends of incoming cables；Binding post 214, binding post 215 meet primary cut-out 2FK
Auxiliary switch normally opened contact；Binding post 208, binding post 209 connect 2# transformer fault alarm relay 2ZK coils, pass through
Make contact 2ZK1, drives audible-visual annunciator to report to the police on the spot, and another pair of contact 2ZK2 of fault alarm relay connects central signal
Case connection transformer station remote alarming device realizes remote alarmss, and remote alarming device is worked with distribution substation by remote communication module
Personnel's mobile phone connects, and by failure condition, the other forms such as note or wechat are reported to the police.
As shown in fig. 6,1# low pressure lead-in circuit breaker control schematic diagrams.Intelligent load detection distribution control device binding post
The manual/auto switch K4 automatic connections end of 112 connection 1# low-voltage cabinet control loops；Binding post 113 simultaneously connects low-voltage circuit breaker storage
Energy electric motor loop, binding post 114 simultaneously connect low-voltage circuit breaker closing coil QFX ends of incoming cables；Binding post 115 is attempted by low pressure and breaks
Road device switching winding QFF ends of incoming cables.
As shown in fig. 7, the wiring diagram of the intelligent power monitor controller to be arranged in 1# low voltage incoming line cabinets.Intelligent power is monitored
Detection power supply terminal A611, B611, C611, N of instrument is connected on the corresponding loop of 1# low voltage incoming line cabinet voltmeters respectively, detect into
The information of the three phase mains of line voltage；Outlet terminal 216 is connected with low-voltage circuit breaker 1QF1 auxiliary switch normally opened contacts end of incoming cables,
Low-voltage circuit breaker 1QF1 auxiliary switch normally opened contacts leading-out terminal connection 217；The terminal 216 of intelligent power monitor controller leading-out terminal, end
Son 218, terminal 219 is together with terminal 217 by controlling cable binding post corresponding with intelligent load detection distribution control device
216th, binding post 218, binding post 219, binding post 217 connect.
As shown in figure 8, being 2# low pressure lead-in circuit breaker control schematic diagrams.Intelligent load detection distribution control device terminals
Son 120 connects the manual/auto switch K5 automatic connections end of 2# low voltage incoming line cabinet control loops；Binding post 121 and connect low pressure break
Road device energy storage motor loop, binding post 122 simultaneously connect low-voltage circuit breaker closing coil QFX ends of incoming cables；Binding post 123 is attempted by
Low-voltage circuit breaker switching winding QFF ends of incoming cables.
As shown in figure 9, the wiring diagram of the intelligent power monitor controller to be arranged in 2# low voltage incoming line cabinets.Intelligent power is monitored
It is corresponding that the detection power supply terminal A611 of instrument, terminal B611, terminal C611, terminal N are connected on 2# low voltage incoming line cabinet voltmeters respectively
On loop；Outlet terminal 220 is connected with low-voltage circuit breaker 1QF1 auxiliary switch normally opened contacts end of incoming cables, and low-voltage circuit breaker 1QF1 is auxiliary
Help switch normally opened contact leading-out terminal connection terminal 221；Intelligent power monitor controller line end terminator 220, terminal 222, terminal 223 connect
With terminal 221 by control the detection of cable and intelligent load distribute the corresponding binding post 220 of control device, binding post 222,
Binding post 223, binding post 221 connect.
As shown in Figure 10, it is control schematic diagram in low voltage liaison net cabinet.Load detecting distribution control device terminal 116 connects low
The manual/auto switch K6 automatic connections end of pressure contact cabinet control loop；Terminal 117 simultaneously connects low voltage liaison net breaker energy storage motor time
Road, terminal 118 simultaneously connect network interconnecting circuit closing coil QFX ends of incoming cables；Terminal 119 is attempted by low voltage liaison net breaker open operation coil
QFF ends of incoming cables.
As shown in figure 11, the intelligent phase sequence monitor controller in low voltage liaison net cabinet is arranged on cabinet inner terminal row, detects power end
Sub- A611, terminal B611, terminal C611, terminal a611, terminal b611, terminal c611, to be connected on network interconnecting circuit respectively right up and down
On the loop answered；Locking terminal 1,3 is serially connected in the closing coil loop of network interconnecting circuit；Alarm terminals 7, alarm terminals 9 are gone here and there
It is connected in alarm relay 3ZJ wire loops；Network interconnecting circuit QF auxiliary switches normally opened contact connects intelligent load detection respectively
Distribution control device binding post 210,211 terminal of binding post.
Above-mentioned substation central signal remote alarming device is as shown in Figure 14 ~ 17.
As shown in figure 14, it includes Central Substation signal box；For gathering the letter of signal in Central Substation signal box
Number Acquisition Circuit；Signal for gathering to signal acquisition circuit carries out the photoelectric coupling isolation circuit of Phototube Coupling；For right
Through the control circuit processed by the signal of photoelectric isolating circuit；For the gsm module communicated with control circuit；For
The remote-end alarm equipment communicated with gsm module；For the power circuit powered for control circuit, gsm module.
The preferred single chip machine controlling circuit of above-mentioned control circuit, takes over from the past and sets a new course for the future to realize that substation central signal remote alarmss are filled
The command centre put, it will collect the information such as signalizing activity situation and be reported to the police to related personnel by gsm module, realize transformer station
Central signal remote alarmss.
Above-mentioned photoelectric coupling isolation circuit sends the signal of collection to single-chip microcomputer control by signal photoelectric switching circuit
Circuit processed, photoelectric coupling isolation circuit are mainly used to prevent high voltage, strong electromagnetic, improve the anti-of single chip machine controlling circuit
Disturb ability.
Above-mentioned remote-end alarm equipment is used to remotely receive the alarm signal that gsm module sends, including staff is hand-held
Portable terminal and/or the monitoring server for carrying out remote monitoring.Specifically, can include platform area electrician's mobile phone,
Any one or a few in power supply station's safety supervision person's mobile phone, county telephone central office's safety supervision platform.
Gsm module is primarily used to set up wireless channel, alert.It is included for entering with remote-end alarm equipment
The antenna of row communication, the control system being connected with antenna, the gsm communication module being connected with communication system.And control system is adopted
Single-chip computer control system.Every substation central signal screen remote alarming device need to handle one to local GSM network operator
SIM cards of mobile phones, and short message function is opened, electronic ID card of the number as every central signal screen remote alarming device.
Power circuit provides electric energy for substation central signal remote alarming device.Including the AC/ being connected with mains supply
DC change-over circuits, the stand-by power supply loop being connected with AC/DC change-over circuits, the mu balanced circuit being connected with stand-by power supply loop,
Mu balanced circuit connects control circuit, and stand-by power supply loop connects gsm module, and stand-by power supply loop includes Li-ion batteries piles and is
The charge circuit that Li-ion batteries piles charge.Stand-by power supply loop mainly for prevent energization make gsm module cannot work into
And cannot report to the police, using stand-by power supply loop, power-off both being made, substation central signal remote alarming device also can normal work.
As shown in figure 15, signal acquisition circuit and the accident alarming relay 1YJ being arranged in Central Substation signal box,
Signal alarm relay 2YJ, 1# transformer fault alarm relay 3YJ, 2# transformer fault alarm relay 4YJ, contact report
Alert relay 5YJ is connected.
In circuit as shown in figure 16, operation principle of the present utility model and process are as follows：
When transformer station's normal work, central signal screen remote alarming device is in holding state, when substation facilities is sent out
During raw emergency stop valve trip, the accident alarming relay 1YJ closed actions of central signal screen make Vcc power supplys by the corresponding of exclusion RP1
Resistance, the accident alarming relay 1YJ of closure power to photoelectrical coupler O1, Jing after Phototube Coupling conversion, to single-chip microcomputer
IC1P3.0 mouth input signals, Jing after single-chip microcomputer is to signal processing, control gsm module sends " power transformation to distribution management electrician's mobile phone
Institute's emergency stop valve trip, fast please be processed " alarm signal, notify that distribution management electrician's speed goes to process.
When substation facilities occurs exception, when there is anticipating signal, central signal screen signal alarm relay 2YJ closures are dynamic
Make, Vcc power supplys are powered to photoelectrical coupler O2 by the signal alarm relay 2YJ of the corresponding resistor of exclusion RP1, closure, Jing
Phototube Coupling is changed, and to single-chip microcomputer IC1P3.0 mouth input signals, Jing after single-chip microcomputer process, control gsm module is to distribution management electricity
Work mobile phone sends " electric substation's exception fast please be checked " alarm signal, notifies that distribution management electrician's speed goes to check.
When there is phase shortage, under-voltage fault in electric substation 1# transformators, warning occur, central signal screen 1# transformer faults
Alarm relay 3YJ closed actions, Vcc power supplys are by the corresponding resistor of exclusion RP1, the 1# transformer fault warning relays of closure
Device 3YJ powers to photoelectrical coupler O3, the conversion of Jing Phototube Couplings, and to single-chip microcomputer IC1P3.0 mouth input signals, Jing single-chip microcomputers are carried out
After signal judgement is processed, control gsm module sends " 1# transformer faults fast please be overhauled " alarm signal to distribution management electrician's mobile phone
Number, notify that distribution management electrician's speed goes maintenance.
When there is phase shortage, under-voltage fault in electric substation 2# transformators, warning occur, central signal screen 2# transformer faults
Alarm relay 4YJ closed actions, Vcc power supplys are by the corresponding resistor of exclusion RP1, the 2# transformer fault warning relays of closure
Device 4YJ is closed and photoelectrical coupler O4 is powered, the conversion of Jing Phototube Couplings, and to single-chip microcomputer IC1P3.0 mouth input signals, Jing single-chip microcomputers enter
After the judgement of row signal is processed, control gsm module sends " 2# transformer faults fast please be overhauled " to distribution management electrician's mobile phone and reports to the police
Signal, notifies that distribution management electrician's speed goes maintenance.
When electric substation there is misphase failure in contact cabinet, and when there is warning, central signal screen contact alarm relay 5YJ is closed
Conjunction action, Vcc power supplys are powered to photoelectrical coupler O5 by the contact alarm relay 5YJ of the corresponding resistor of RP1, closure, Jing
Phototube Coupling is changed, and to single-chip microcomputer IC1P3.0 mouth input signals, Jing after single-chip microcomputer carries out signal judgement process, controls gsm module
" contact cabinet misphase fast please be processed " alarm signal is sent to distribution management electrician's mobile phone, notifies that distribution management electrician's speed goes to process,
Report to the police to county, power supply station of township safety supervision personnel mobile phone and security monitor platform simultaneously.
As shown in figure 17, power module DY, electric capacity E2, C4 composition AC/DC change-over circuits, provide power supply for supervising device,
Voltage stabilizing chip IC3, electric capacity E6, C7 composition mu balanced circuit are powered to single-chip microcomputer；Voltage stabilizing chip IC2, resistance R7, R6, diode D4,
D5, electric capacity E3, E4, E5, C5, C6, set of cells BT1 composition stand-by power supply loop provide back-up source for supervising device.
As shown in Figure 18,19, it is the structure chart and electric diagram of intelligent phase sequence monitor controller in low voltage liaison net cabinet.
Intelligent phase sequence monitor controller includes housing, the interconnection switch both sides phase being provided with housing in detection low voltage liaison net cabinet
The circuit of testing the phase sequence of sequence, the misphase exclusive circuit being connected in interconnection switch closing coil loop, it is connected to interconnection switch report
Misphase warning circuit in alert relay circuit.It is provided with outside housing and connecing that outside interconnection switch relevant position is attached
Line terminals.Intelligent phase sequence monitor controller housing small volume, is made using engineering plastics, it is also possible to use other materials, using deck
Formula structure, is easily installed on power distribution terminal bar.The two-way that above-mentioned low voltage liaison net cabinet connection is connected from different transformators
Load.
Above-mentioned circuit of testing the phase sequence connects the A phase, B phase, C phase power supply of interconnection switch QF upper ends respectively by binding post
A phases, b phases, c phase power supplys with lower end.As shown in Figure 10, A611, B611, C611 connection interconnection switch QF of circuit of testing the phase sequence
On upper end A, B, C three-phase circuit；On another road A, B, C three-phase circuit in a611, b611, c611 connection interconnection switch QF lower ends.
As shown in figure 19, circuit of testing the phase sequence include being connected between A phases and a phases, between B phases and b phases, C phases and C
Three tunnels detection control circuit between phase, detects that per road control circuit mainly includes the rectification that RC circuits and RC circuits connect
Operational amplification circuit and examine with electric bridge that the electric bridge detection circuit and electric bridge detection circuit of circuit and rectification circuit connection connects
The output relay circuit of slowdown monitoring circuit connection.
In Figure 19（A）It is shown, for the detection electric operation control circuit figure being connected between A phases and a phases, wherein intelligent phase sequence
The binding post A611 of monitor controller connects the shunt circuit of the first capacitor C1 and first resistor R1, the shunt circuit connection first
The positive pole of commutation diode D1；Positive poles of the binding post a611 by second resistance R2 the second commutation diode D2 of connection, first
Commutation diode D1, the second commutation diode D2, the 4th commutation diode D4, the 5th commutation diode D5 composition bridge rectifier electricity
Road, 3rd resistor R3, the 4th resistance R4, the 5th resistance R5, the 6th resistance R6 composition electric bridge detection circuits, electric bridge detection circuit is simultaneously
Connection is connected to negative pole, the 4th commutation diode of the first commutation diode D1 and the second commutation diode D2 of bridge rectifier
Between the positive pole of D4 and the 5th commutation diode D5, the 3rd diode D3, the second capacitor C2, the first three-terminal voltage-stabilizing IC circuit 1
Composition isolation filter mu balanced circuit, is connected to one end that 3rd resistor R3 and the 4th resistance R4 are connected, while putting for the second computing
Big device IC2, the 3rd drive module IC3, I J1 of relay provide power supply, detect that the output of bridge circuit connects the second operation amplifier
Positive and negative two input pins of device IC2, the output of the second operational amplifier IC2 connect the 7th resistance R7, the 7th resistance R7 connections
3rd capacitor C3 and the 3rd drive module IC3 input pin, output connection I J1 of relay of the 3rd drive module IC3；It is above-mentioned
In circuit, the first three-terminal voltage-stabilizing IC circuit 1 is preferably LM7824, the second operational amplifier IC2 and is preferably LM358, the 3rd driving
Module I C3 is preferably MC1413.
In Figure 19（B）It is shown, for the detection electric operation control circuit figure being connected between B phases and b phases, wherein intelligent phase sequence
The binding post B611 of monitor controller connects the shunt circuit of the 5th capacitor C5 and the 8th resistance R8, the shunt circuit connection the 6th
The positive pole of commutation diode D6；Binding post b611 connects the positive pole of the tenth commutation diode D10 by the 14th resistance R14,
6th commutation diode D6, the 7th commutation diode D7, the 9th commutation diode D9, the tenth commutation diode D10 composition bridge-types
Rectification circuit, the 9th resistance R9, the tenth resistance R10, the 11st resistance R11, the 12nd resistance R12 composition electric bridge detection circuits,
Electric bridge detection circuit in parallel is connected to the 6th commutation diode D6 and the 7th commutation diode D7 connection of bridge rectifier
Between the positive pole of negative pole, the 9th commutation diode D9 and the tenth commutation diode D10 connection, the 8th diode D8, the 6th electric capacity
Device C6, the composition isolation filter mu balanced circuit of the 4th three-terminal voltage-stabilizing IC circuit 4, are connected to the 9th resistance R9 and the tenth resistance R10 phases
One end even, while providing power supply for the 5th operational amplifier IC5, the 6th drive module IC6, II J2 of relay, detects electric bridge
Positive and negative two input pins of output the 5th operational amplifier IC5 of connection of circuit, the output connection of the 5th operational amplifier IC5
13rd resistance R13, the 13rd resistance R13 connect the 7th capacitor C7 and the 6th drive module IC6 input pin, and the 6th drives
Output connection II J2 of relay of module I C6；In foregoing circuit, the 4th three-terminal voltage-stabilizing IC circuit 4 is preferably LM7824, the 5th fortune
Calculate amplifier IC5 preferably LM358, the 6th drive module IC6 and be preferably MC1413.
In Figure 19（C）It is shown, for the detection electric operation control circuit figure being connected between C phases and c phases, wherein intelligent phase sequence
The binding post C611 of monitor controller connects the shunt circuit of the 9th capacitor C9 and the 15th resistance R15, and the shunt circuit connects
The positive pole of the 11st commutation diode D11；Binding post c611 connects the 15th commutation diode by the 16th resistance R16
The positive pole of D15, the 10th first-class diode D11, the 12nd commutation diode D12, the 14th commutation diode D14, the 15th
Commutation diode D15 constitute bridge rectifier, the 17th resistance R17, the 18th resistance R18, the 19th resistance R19, second
Ten resistance R20 composition electric bridge detection circuits, electric bridge detection circuit in parallel are connected to the 10th first-class two pole of bridge rectifier
The negative pole of pipe D11, the 12nd commutation diode D12 connection, the 14th commutation diode D14 and the 15th commutation diode D15
Between the positive pole of connection, the 13rd diode D13, the tenth capacitor C10, the composition isolation filter of the 7th three-terminal voltage-stabilizing IC circuit 7
Mu balanced circuit, is connected to one end that the 17th resistance R17 and the 18th resistance R18 is connected, while being the 8th operational amplifier
IC8, the 9th drive module IC9, III J3 of relay provide power supply, detect that the output of bridge circuit connects the 8th operational amplifier
Positive and negative two input pins of IC8, the output of the 8th operational amplifier IC8 connect the 21st resistance R21, the 21st resistance
R21 connects the 11st capacitor C11 and the 9th drive module IC9 input pin, the output connection relay of the 9th drive module IC9
III J3 of device；In foregoing circuit, the 7th three-terminal voltage-stabilizing IC circuit 7 is preferably LM7824, the 8th operational amplifier IC8 and is preferably
LM358, the 9th drive module IC9 are preferably MC1413.
In Figure 19（D）It is shown, it is misphase exclusive circuit, it includes the normally-closed contact I of I J1 of relay being connected in series in
J1-1, II J2-1 of normally-closed contact of relay J2, III J3-1 of normally-closed contact of relay J3.As shown in Figure 10, it is connected on low
In the loop of the interconnection switch QF closing coil QFX of pressure network interconnecting circuit.
In Figure 19（E）It is shown, it is misphase warning circuit, I J1-2 of normally opened contact that it includes being connected in parallel, normally opened touches
II J2-2 of point, III J3-2 of normally opened contact.As shown in Figure 10, it is connected on the interconnection switch QF warning relays of low voltage liaison net chopper
In the loop of device 3ZJ.Control schematic diagrams of the Figure 10 for low voltage liaison net chopper.Intelligent phase sequence monitor controller CDK-X1 is connected to open circuit
In the control loop of device.
In the case of when intelligent phase sequence monitor controller works, Everything is fine, the normally-closed contact J1-1 of I J1 of relay, relay
The normally-closed contact J2-1 of II J2, III J3-1 of normally-closed contact of relay J3 are connected in series and connect, and constitute misphase exclusive circuit, should
Wrong item exclusive circuit is connected in interconnection switch QF closing coil QFX loops, and interconnection switch normally can close a floodgate.
When interconnection switch upper and lower port has any one phase misphase, intelligent phase sequence monitor controller detects interconnection switch upper and lower side
Mouth phase sequence misphase, detects circuit, operational amplification circuit to start by the RC circuits of phase sequence control circuit, rectification circuit, electric bridge
The drive module of relay, drives the actuating of relay, normally-closed contact J1-1, normally-closed contact J2-1, III J3-1 of normally-closed contact to connect,
Arbitrarily relay disconnects all the way, is switched off the ring current of interconnection switch QF closing coils, realizes locking, and interconnection switch QF can not
Close a floodgate, while sending alarm signal, I J1-2 of normally opened contact of relay JI, the normally opened contact of relay J2 by alarm circuit
II J2-2, III J3-2 of normally opened contact of relay J3 are connected in parallel, any normally opened contact closure, send alarm signal, notify
Maintenance.
As Fig. 7, Fig. 9 show connecing for the intelligent power monitor controller in 1# low voltage incoming line cabinets and 2# low voltage incoming line cabinets
Line chart.As Figure 20,21 show the circuit diagram and wiring schematic diagram of intelligent power monitor controller.It is mainly follow-up intelligent load
Detection distribution control device provides stabilization signal, including the power sense circuit of the primary voltage of detection low voltage incoming line cabinet；Also wrap
Housing is included, the power sense circuit is arranged in housing, entered by the binding post and the low pressure of outside that are arranged on housing
The relevant position connection of the primary voltage of line cabinet.Intelligent power monitor controller housing small volume, is made using engineering plastics, it is also possible to
Using other materials, using clamping type structure, it is easily installed on power distribution terminal bar.
Above-mentioned power sense circuit connects the A phases of primary voltage of low voltage incoming line cabinet, B phases, C respectively by binding post
On phase power supply and zero line.The A611 binding posts of power sense circuit, B611 binding posts, C611 binding posts are connected to contact
The upper end of switch QF1, N binding posts connection zero line.
In Figure 21（A）(B), shown in (C), power sense circuit includes being connected between A phases and zero line, B phases with
Three tunnel identical power detecting control circuits between zero line, between C phases and zero line, the three-way power detect control circuit and intelligence
Detection control circuit composition in energy phase sequence monitor controller is identical, and the position for differing only in connection is different：Circuit of testing the phase sequence bag
Include three tunnels being connected between A phases and a phases, between B phases and b phases, between C phases and C phases and detect control circuit, and power supply is examined
Slowdown monitoring circuit includes being connected to three tunnel identical power supplys between A phases and zero line, between B phases and zero line, between C phases and zero line
Detection control circuit.Physical circuit is as shown in Figure 25,26,27.The output relay circuit of intelligent power monitor controller includes connection
I J1 of relay, II J2 of relay being connected between B phases and zero line between A phases and zero line, be connected to C phases and zero line it
Between III J3 of relay.
In Figure 21（D）For the series circuit that the normally-closed contact of output relay is constituted, they connect in circuit
Correct position, for receiving the signal of prime relay coil, it includes I J1- of normally-closed contact of I J1 of relay being connected in series in
1st, III J3-1 of normally-closed contact of II J2-1 of normally-closed contact of relay J2, relay J3.No. three relay switch and gate circuit,
Y is detected referred to as.
As shown in Figure 21（E）, it is the parallel circuit of the normally opened contact composition of output relay, they are connected to circuit
In correct position, for receiving the signal of prime relay coil, it includes the normally opened contact I of the relay JI being connected in parallel
J1-2, II J2-2 of normally opened contact of relay J2, III J3-2 of normally opened contact of relay J3, No. three relay switch composition or
Gate circuit, referred to as detects H.Above-mentioned No. three relay selects HF115F2Z.
When intelligent power monitor controller works online, low pressure incoming power detects Y circuit outputs in the case of Everything is fine
For " 1 "；Detection H circuit outputs are " 1 ", and now, detector exports logic level for " 11 ", and intelligent load detection distribution control is filled
Put normal operation.
When low-tension supply has any one mutually under-voltage, phase shortage, arbitrarily relay release all the way, detector output logic level
For " 01 ", intelligent load detection distribution control device interruption, time delay send transformer fault alarm signal, notify maintenance.
Above-described is only preferred implementation of the present utility model, it is noted that for those skilled in the art
For, under the premise of without departing from this utility model general idea, some changes and improvements can also be made, these should also be considered as
Protection domain of the present utility model.
Claims (8)
1. distribution substation's transformer energy saving control system, it is characterised in that：Piezoelectric transformer is assembled including the N being arranged in distribution substation
Group, N are not less than 1, described often to assemble 1# high-voltage boards and the 2# high-voltage boards that piezoelectric transformer group includes being connected with high voltage bus；It is described
High-voltage switch gear is provided with 1# high-voltage boards and 2# high-voltage boards；Connect intelligent load inspection between the 1# high-voltage boards and 2# high-voltage boards
Survey distribution control device；
Connect 1# transformators on the 1# high-voltage boards, 1# transformators connection 1# low-voltage cabinets, 1# low-voltage cabinets connect low by bus-bar I
Pressure compensating cabinet I, low-pressure line-outgoing cabinet I, the connection of low-pressure line-outgoing cabinet I load I；
Connect 2# transformators on the 2# high-voltage boards, 2# transformators connection 2# low-voltage cabinets, 2# low-voltage cabinets are connected by bus-bar II
Low-voltage compensation cabinet II, low-pressure line-outgoing cabinet II, the connection of low-pressure line-outgoing cabinet II load II；It is all provided with the 1# low-voltage cabinets and 2# low-voltage cabinets
It is equipped with low pressure lead-in circuit breaker；
Also include low voltage liaison net cabinet, the low voltage liaison net cabinet is loaded by the connection of bus-bar I load I, by the connection of bus-bar II
Ⅱ；Low voltage liaison net chopper is set in the low voltage liaison net cabinet；
The intelligent load detection distribution control device includes detecting the load of 1# transformators and 2# transformer loads in distribution substation
Detection metering units.
2. distribution substation's transformer energy saving control system according to claim 1, it is characterised in that
The intelligent load detection distribution control device also includes：
Receive the programmable display control unit of the signal of load detecting metering units detection；The programmable display control unit
The LED display unit being connected including single-chip microcomputer and with single-chip microcomputer；
Receive the load assignment control of programmable display control unit data；
Show the running status display unit of load assignment control running status.
3. distribution substation's transformer energy saving control system according to claim 2, it is characterised in that：
The load assignment control includes control circuit, and control circuit is sequentially connected operation by being input into photoelectric isolation module
Status display unit and input terminal, the control circuit passes sequentially through output photoelectric isolation module and relay module connection is defeated
Go out terminal, the single-chip microcomputer of the programmable display control unit connects LED display unit by LED drive circuit；
The load detecting metering units include two processors, and each processor is by a current signal isolator connection
One transformator.
4. distribution substation's transformer energy saving control system according to claim 1, it is characterised in that：Also include alarm device,
The alarm device includes the substation central signal remote alarming device communicated with distal end, the substation central signal
Remote alarming device is communicated with distal end by remote communication module.
5. distribution substation's transformer energy saving control system according to claim 1, it is characterised in that：
The 1# low-voltage cabinets and 2# low-voltage cabinets connect an intelligent power monitor controller respectively；Intelligent power monitor controller detection inlet wire electricity
The information of the three phase mains of pressure, and send information to intelligent load detection distribution control device.
6. distribution substation's transformer energy saving control system according to claim 5, it is characterised in that：
The intelligent power monitor controller includes the power sense circuit of the primary voltage for detecting low voltage incoming line cabinet, power sense circuit
The A phase, B phase, C phase power supply and zero line of primary voltage are connected respectively by binding post.
7. distribution substation's transformer energy saving control system according to claim 1, it is characterised in that：
The intelligent phase sequence monitor controller of connecting detection two-way power phase on the low voltage liaison net cabinet.
8. distribution substation's transformer energy saving control system according to claim 7, it is characterised in that：
The intelligent phase sequence monitor controller includes
The circuit of testing the phase sequence of the interconnection switch both sides power phase in detection low voltage liaison net cabinet；
The misphase exclusive circuit being connected in interconnection switch closing coil loop；
The misphase warning circuit being connected in interconnection switch alarm relay loop.
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| CN201620937661.1U CN206077066U (en) | 2016-08-25 | 2016-08-25 | Distribution substation's transformer energy saving control system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106059094A (en) * | 2016-08-25 | 2016-10-26 | 贾杰栋 | Distribution substation transformer energy saving control system and method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106059094A (en) * | 2016-08-25 | 2016-10-26 | 贾杰栋 | Distribution substation transformer energy saving control system and method |
| CN106059094B (en) * | 2016-08-25 | 2019-06-07 | 贾杰栋 | Distribution substation's transformer energy saving control system and method |
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Effective date of registration: 20171208 Address after: No. 56, administrative Road, Xinmi, Henan Province Patentee after: Zhengzhou advocates Electric Power Technology Co., Ltd. Address before: 452370 Henan city of Zhengzhou province Xinmi City Qin waterway No. 156 Patentee before: Jia Jiedong |