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CN107621805A - Electric substation's uniline anti-misoperation system - Google Patents

Electric substation's uniline anti-misoperation system Download PDF

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Publication number
CN107621805A
CN107621805A CN201710916324.3A CN201710916324A CN107621805A CN 107621805 A CN107621805 A CN 107621805A CN 201710916324 A CN201710916324 A CN 201710916324A CN 107621805 A CN107621805 A CN 107621805A
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CN
China
Prior art keywords
switch
uniline
plc
relay
state
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201710916324.3A
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Chinese (zh)
Inventor
梁伟
徐荣义
李英非
许超
张庆会
毕强
吴宝龙
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
HEIHE POWER SUPPLY Co OF STATE GRID HEILONGJIANG ELECTRIC POWER Co Ltd
State Grid Corp of China SGCC
Original Assignee
HEIHE POWER SUPPLY Co OF STATE GRID HEILONGJIANG ELECTRIC POWER Co Ltd
State Grid Corp of China SGCC
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by HEIHE POWER SUPPLY Co OF STATE GRID HEILONGJIANG ELECTRIC POWER Co Ltd, State Grid Corp of China SGCC filed Critical HEIHE POWER SUPPLY Co OF STATE GRID HEILONGJIANG ELECTRIC POWER Co Ltd
Priority to CN201710916324.3A priority Critical patent/CN107621805A/en
Publication of CN107621805A publication Critical patent/CN107621805A/en
Pending legal-status Critical Current

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Abstract

Electric substation's uniline anti-misoperation system, belong to electric substation's power supply field, solve the problems, such as that existing electric substation needs maloperation of manually being locked and easily occurred in power failure or transmission process.The operating system includes PLC, state-detection relay, driver, electric lock and chopper switch;The digital state detection signal of the switch output of state-detection relay is sent to PLC digital state detection signal input;The digital controlled signal of PLC outputs is sent to the digital controlled signal input of driver;The digital drive signals of driver output are sent to the digital drive signals input of electric lock;Electric lock is fixedly mounted on chopper switch.During electric substation's uniline anti-misoperation system of the present invention is applied to electric substation's power transmission or had a power failure.

Description

Electric substation's uniline anti-misoperation system
Technical field
The present invention relates to electric substation's uniline anti-misoperation system, belongs to electric substation's power supply field.
Background technology
Electric substation typically now needs manually to carry out operation of locking in power failure or transmission process, operating process it is cumbersome and Easily there is maloperation, cause power transmission or occur the situation that carelessness is forgotten to lock during having a power failure, so as to cause power transmission or power failure During there is maloperation, in later stage line maintenance easily occur misdelivery electricity, cause personnel's electric shock accidents.
The content of the invention
The present invention needs manually to be locked in power failure or transmission process and easily missed to solve existing electric substation The problem of operation, it is proposed that electric substation's uniline anti-misoperation system.
Electric substation's uniline anti-misoperation system of the present invention include PLC, state-detection relay, driver, Electric lock and chopper switch;
The digital state signal of the switch output of state-detection relay is sent to PLC digital state signal input; The digital controlled signal of PLC outputs is sent to the digital controlled signal input of driver;The digital drive letter of driver output Number it is sent to the digital drive signals input of electric lock;Electric lock is fixedly mounted on chopper switch.
(chopper switch includes chopper switch KD1 to the digital state signal of state-detection switch output chopper switch, disconnecting link is opened KD2, chopper switch KD3 and chopper switch KD4 are closed, and each chopper switch has on and off two states), PLC receives numeral Export digital controlled signal after status signal to open to driver, driver output digital drive signals control electric lock, operation Personnel can operate to the state of the corresponding chopper switch of electronic lock control.One electric lock can control chopper switch In some switch a kind of state, only when electric lock is opened could to corresponding chopper switch progress manual operation;Pass through State-detection switch output digital state signal controls the unlatching of electric lock to PLC, PLC output digit signals, on automatic Lock instead of the process manually locked, and reduce the probability of maloperation.
Electric substation's uniline anti-misoperation system of the present invention be based on PLC output digit signals control electric lock and Electric lock and the principle of the one-to-one control of chopper switch are made, simple to operate, effective probability for reducing maloperation.
Brief description of the drawings
Hereinafter will be based on embodiment and refer to the attached drawing come to electric substation's uniline anti-misoperation of the present invention System is described in more detail, wherein:
Fig. 1 is the theory diagram of electric substation's uniline anti-misoperation system described in embodiment one.
Fig. 2 is the electric hookup of the driver described in embodiment one and five.
Fig. 3 is the selecting switch described in the switch and example IV of the state-detection relay described in embodiment one and two Electric hookup.
Fig. 4 be the electric lock described in embodiment one, the coil of state-detection relay described in embodiment two, indicator lamp and The electric hookup of driver described in position feedback switch and embodiment five.
Fig. 5 be the coil of state-detection relay described in embodiment two, the position feedback switch described in embodiment two and The electric hookup of indicator lamp described in embodiment two.
Fig. 6 is the electric hookup of the transmission line of electricity described in embodiment three and four.
Embodiment
Electric substation's uniline anti-misoperation system of the present invention is described further below in conjunction with accompanying drawing.
Embodiment one:The present embodiment is explained with reference to Fig. 1,2,3 and 4.
Electric substation's uniline anti-misoperation system described in the present embodiment includes PLC1, state-detection relay, driving Device 3, electric lock 4 and chopper switch 5;
The digital state signal that the switch 2 of state-detection relay exports is sent to PLC1 digital state signal input End;The digital controlled signal of PLC1 outputs is sent to the digital controlled signal input of driver 3;The numeral that driver 3 exports Drive signal is sent to the digital drive signals input of electric lock 4;Electric lock 4 is fixedly mounted on chopper switch 5.
Electric substation's uniline anti-misoperation system can be realized according to existing program, opened by the state-detection in Fig. 3 2 (ka9-ka16) output digital state signals are closed, PLC1 exports digital controlled signal into Fig. 2 after receiving digital state signal Driver 3, driver 3 exports the electric lock 4 (DY1-DY8) in digital drive signals to Fig. 4, only in Fig. 4 electronic In the state of locking 4 (DY1-DY8) openings, the on or off state of corresponding chopper switch 5 (KD1-KD4) could be operated.
Embodiment two:Illustrate the present embodiment with reference to Fig. 3,4 and 5, the present embodiment is single to the electric substation described in embodiment one One circuit anti-misoperation system is further limited.
Electric substation's uniline anti-misoperation system described in the present embodiment also includes indicator lamp 7, and the chopper switch 5 wraps Include position feedback switch;
Position feedback switch uses single-pole double-throw switch (SPDT), and the disconnecting link of chopper switch 5 and the disconnecting link of single-pole double-throw switch (SPDT) are connection Lock relation;
State-detection relay is divided into the off status detection of the open state detection relay and chopper switch 5 of chopper switch 5 Relay;
Position feedback switch detects the coil of relay and the pass shape of chopper switch 5 with the open state of chopper switch 5 respectively The coil series connection of state detection relay;The coils from parallel connection of coils of indicator lamp 7 and state-detection relay.
Electric substation's uniline anti-misoperation system first carries out feedback of status process, and the digital state signal for exporting feedback arrives The unlatching of electric lock 4 is controlled in PLC1.
Feedback of status process:The moved end of position feedback switch can be connected with any one in two not moved end, according to The current state of chopper switch 5, the moved end of position feedback switch are connected with the not moved end of the instruction current state of chopper switch 5, with Indicate that the coil of the state-detection relay of the current state of chopper switch 5 of the not moved end connection of the current state of chopper switch 5 obtains Electricity, the switch 2 of the state-detection relay of the current state of chopper switch 5 in Fig. 3 close, with electric coil indicator lamp in parallel 7 is luminous, and indicator lamp 7 indicates the current state of chopper switch 5, is obtained by the coil of the state-detection relay in Fig. 4 and Fig. 5 Electricity, the switch of corresponding state-detection relay close, and realize the feedback of state.
The current state of chopper switch 5 is fed back in PLC1, PLC1 is according to the feedback signal output numeral letter received Number, the control signal for exporting PLC1 is more accurate, it is ensured that the accuracy of operation.
Embodiment three:Illustrate the present embodiment with reference to Fig. 6, the present embodiment is to electric substation's uniline described in embodiment one Anti-misoperation system is further limited.
Electric substation's uniline anti-misoperation system described in the present embodiment also includes lightning arrester 8, and lightning arrester 8 uses Lightning conducter, lightning conducter are arranged on the inlet wire port of transmission line of electricity.
If electric substation is struck by lightning, it will cause the power failure phenomenon of large area, in order to prevent the generation of this phenomenon, The incoming line installation lightning conducter of the transmission line of electricity of electric substation, protects electric substation's uniline anti-misoperation system from thunderbolt.
Example IV:With reference to the explanation the present embodiment of Fig. 3 and 6, the present embodiment is single to the electric substation described in embodiment one Circuit anti-misoperation system is further limited.
Electric substation's uniline anti-misoperation system described in the present embodiment also includes selecting switch 6, transformer 9 and relay Device 10, selecting switch 6 use SP3T switch, and the not moved end of selecting switch 6 and PLC1 digital signal input end connect;Choosing Select the moved end of switch 6 and PLC1 input common port connects;The moved end of selecting switch 6 is connected with not moved end and output digit signals To PLC1 digital signal input end;PLC1 digital signal output end is connected with one end of the coil of relay 10;The relay The other end of the coil of device 10 and PLC1 output common port connect;Transformer 9 is used for PLC1 transmission line of electricity 220V voltages The 12V voltages of PLC1 needs are converted to, the switch of the relay 10 is connected on the forward voltage outlet line of the secondary of transformer 9 In.
Before electric substation carries out power transmission or power failure operation, first pass through stir selecting switch 6 (SA) moved end output numeral it is disconnected Electric signal is sent to PLC1 digital signal input end, and PLC1 exports low level signal to the coil (KM0) of relay 10, relay Coil (KM0) power-off of device 10, the switch (km0) of the relay 10 of the forward voltage output end of transformer 9 series connection disconnect, make to pass through The equipment of the output voltage of transformer 9 power supply is in off-position, stirs selecting switch 6 (SA) output numeral power failure or electric signals Export high level signal to PLC1, PLC1 and obtain electric, transformer to the coil (KM0) of relay 10, the coil (KM0) of relay 10 Switch (km0) closure of the relay 10 of 9 forward voltage output ends series connection, makes the equipment powered by the output voltage of transformer 9 Restore electricity, then had a power failure or power transmission operation, selecting switch 6 (SA) plays a part of protection circuit;Selecting switch 6 (SA) needs Power-off, power failure or power transmission status signal are exported to PLC1 digital signal input end, so being carried out using SP3T switch Power-off, power failure or the output of power transmission state.
Embodiment five:With reference to the explanation the present embodiment of Fig. 2 and 4, the present embodiment is single to the electric substation described in embodiment one Circuit anti-misoperation system is further limited.
Electric substation's uniline anti-misoperation system described in the present embodiment, driver 3 use relay.
The coil (KA1-KA8) of driver 3 in PLC1 output digital controlled signals to Fig. 2, the coil of driver 3 (KA1-KA8) must be electric, then switch (ka1-ka8) closure of the driver 3 in Fig. 4, goes here and there with the switch (ka1-ka8) of driver 3 The electric lock 4 (DY1-DY8) of connection is opened.
Obtained by the coil of driver 3 electric, control the switch of corresponding driver 3 to close, it is possible to achieve to corresponding knife The control of lock switch 5.
Although the present invention is described herein with reference to specific embodiment, it should be understood that, these realities Apply the example that example is only principles and applications.It should therefore be understood that exemplary embodiment can be permitted More modifications, and can be designed that other arrangements, the spirit of the invention limited without departing from appended claims and Scope.It should be understood that different appurtenances can be combined by way of different from described by original claim It is required that and feature specifically described herein.It will also be appreciated that the feature with reference to described by separate embodiments can be used at it In his embodiment.

Claims (5)

1. electric substation's uniline anti-misoperation system, it is characterised in that the operating system include PLC (1), state-detection after Electrical equipment, driver (3), electric lock (4) and chopper switch (5);
The digital state signal of switch (2) output of state-detection relay is sent to PLC (1) digital state signal input End;The digital controlled signal of PLC (1) outputs is sent to the digital controlled signal input of driver (3);Driver (3) exports Digital drive signals be sent to the digital drive signals input of electric lock (4);Electric lock (4) is fixedly mounted on chopper switch (5) on.
2. electric substation's uniline anti-misoperation system as claimed in claim 1, it is characterised in that electric substation's uniline is prevented Misoperation system also includes indicator lamp (7), and the chopper switch (5) includes position feedback switch;
Position feedback switch uses single-pole double-throw switch (SPDT), and the disconnecting link of chopper switch (5) and the disconnecting link of single-pole double-throw switch (SPDT) are interlockings Relation;
State-detection relay is divided into the off status detection of the open state detection relay and chopper switch (5) of chopper switch (5) Relay;
Position feedback switch detects the coil of relay and the pass shape of chopper switch (5) with the open state of chopper switch (5) respectively The coil series connection of state detection relay;The coils from parallel connection of coils of indicator lamp (7) and state-detection relay.
3. electric substation's uniline anti-misoperation system as claimed in claim 1, it is characterised in that electric substation's uniline is prevented Misoperation system also includes lightning arrester (8), and lightning arrester (8) uses lightning conducter, and lightning conducter is arranged on the inlet wire of transmission line of electricity Port.
4. electric substation's uniline anti-misoperation system as claimed in claim 1, it is characterised in that electric substation's uniline is prevented Misoperation system also includes selecting switch (6), transformer (9) and relay (10), and selecting switch (6) is opened using SP3T Close, the not moved end of selecting switch (6) is connected with PLC (1) digital signal input end;The moved end of selecting switch (6) and PLC (1) Input common port connection;The moved end of selecting switch (6) is connected with not moved end and output digit signals to PLC (1) numeral are believed Number input;PLC (1) digital signal output end is connected with one end of the coil of relay (10);The line of the relay (10) The other end of circle is connected with PLC (1) output common port;Transformer (9) is used to turn PLC (1) transmission line of electricity 220V voltages The 12V voltages of PLC (1) needs are changed to, the switch of the relay (10) is connected on the forward voltage output line of transformer (9) secondary Lu Zhong.
5. electric substation's uniline anti-misoperation system as claimed in claim 1, it is characterised in that driver (3) using after Electrical equipment is realized.
CN201710916324.3A 2017-09-30 2017-09-30 Electric substation's uniline anti-misoperation system Pending CN107621805A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710916324.3A CN107621805A (en) 2017-09-30 2017-09-30 Electric substation's uniline anti-misoperation system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710916324.3A CN107621805A (en) 2017-09-30 2017-09-30 Electric substation's uniline anti-misoperation system

Publications (1)

Publication Number Publication Date
CN107621805A true CN107621805A (en) 2018-01-23

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Family Applications (1)

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CN201710916324.3A Pending CN107621805A (en) 2017-09-30 2017-09-30 Electric substation's uniline anti-misoperation system

Country Status (1)

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CN (1) CN107621805A (en)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201541058U (en) * 2009-06-09 2010-08-04 叶宏 Intelligent misoperation prevention system of substation primary equipment
CN204067103U (en) * 2014-09-02 2014-12-31 国家电网公司 A kind of GIS device disconnecting link position transform hint device
CN104734027A (en) * 2015-01-16 2015-06-24 浙江大学 Method for preventing mistaken power transmission of 35 kV transformer substation
CN105305286A (en) * 2015-10-28 2016-02-03 国网山东郯城县供电公司 Reclose forced interlocking device with dual protection and operation method thereof
CN105405693A (en) * 2015-12-28 2016-03-16 广东电网有限责任公司清远供电局 GIS breaker contact opening and closing condition monitoring system
CN205211625U (en) * 2015-11-27 2016-05-04 国家电网公司 Prevent switch mistake and close circuit system
CN106972489A (en) * 2017-05-16 2017-07-21 国网山东省电力公司菏泽供电公司 The positive and negative two-way anti-misoperation system of ring network power supply
CN107069719A (en) * 2017-05-16 2017-08-18 华电北瑞电气(北京)有限公司 A kind of ring network power supply anti-misoperation system

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201541058U (en) * 2009-06-09 2010-08-04 叶宏 Intelligent misoperation prevention system of substation primary equipment
CN204067103U (en) * 2014-09-02 2014-12-31 国家电网公司 A kind of GIS device disconnecting link position transform hint device
CN104734027A (en) * 2015-01-16 2015-06-24 浙江大学 Method for preventing mistaken power transmission of 35 kV transformer substation
CN105305286A (en) * 2015-10-28 2016-02-03 国网山东郯城县供电公司 Reclose forced interlocking device with dual protection and operation method thereof
CN205211625U (en) * 2015-11-27 2016-05-04 国家电网公司 Prevent switch mistake and close circuit system
CN105405693A (en) * 2015-12-28 2016-03-16 广东电网有限责任公司清远供电局 GIS breaker contact opening and closing condition monitoring system
CN106972489A (en) * 2017-05-16 2017-07-21 国网山东省电力公司菏泽供电公司 The positive and negative two-way anti-misoperation system of ring network power supply
CN107069719A (en) * 2017-05-16 2017-08-18 华电北瑞电气(北京)有限公司 A kind of ring network power supply anti-misoperation system

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* Cited by examiner, † Cited by third party
Title
易居 等;: "一种基于PLC的变电站网络化防误操作闭锁系统", 《湖北水力发电》 *

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Application publication date: 20180123