CN107621805A - Electric substation's uniline anti-misoperation system - Google Patents
Electric substation's uniline anti-misoperation system Download PDFInfo
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- 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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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
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.
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 |
Family
ID=61091509
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710916324.3A Pending CN107621805A (en) | 2017-09-30 | 2017-09-30 | Electric substation's uniline anti-misoperation system |
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| Country | Link |
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| CN (1) | CN107621805A (en) |
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| 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 |
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| 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 |
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Application publication date: 20180123 |