CN109192569A - A kind of control method being latched between three station grounding switch and breaker open operation - Google Patents
A kind of control method being latched between three station grounding switch and breaker open operation Download PDFInfo
- Publication number
- CN109192569A CN109192569A CN201811285842.0A CN201811285842A CN109192569A CN 109192569 A CN109192569 A CN 109192569A CN 201811285842 A CN201811285842 A CN 201811285842A CN 109192569 A CN109192569 A CN 109192569A
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- China
- Prior art keywords
- breaker
- earthing switch
- latched
- normally closed
- closed contact
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- 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.)
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/20—Interlocking, locking, or latching mechanisms
- H01H9/26—Interlocking, locking, or latching mechanisms for interlocking two or more switches
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
- Switch Cases, Indication, And Locking (AREA)
Abstract
The invention discloses the control methods being latched between a kind of three station grounding switchs and breaker open operation, comprising the following steps: step 1 seals in the normally closed contact of earthing switch in the electronic sub-gate circuit of breaker；Step 2 seals in the normally closed contact of breaker in earthing switch control loop；Step 3 closes a floodgate earthing switch, then closes a floodgate to breaker, and the normally closed contact of earthing switch disconnects, and the electronic sub-gate circuit of breaker disconnects, while being latched grounding switch tripping operation.The present invention provides the control method being latched between three station grounding switchs of one kind and breaker open operation, solves in the case where switchgear control loop does not power off, and earthing switch prevents the electronic accidentally separating brake of breaker when safeguarding ground state, it is ensured that maintenance grounding safety is reliable.
Description
Technical field
The present invention relates to the control methods being latched between a kind of three station grounding switchs and breaker open operation, belong to electrical control
Field.
Background technique
Currently, to prevent from carrying out breaker when carrying out Maintenance and Repair to the line cord side in electric power supply system for subway
Electronic accidentally sub-switching operation, as shown in Figure 1, three station grounding switch of 40.5kV GIS switchgear in coincidence, when closing breaker, is somebody's turn to do
Earthing switch is to be grounded to cable side, and when breaker is in quartile, then line side cannot complete to be grounded.Therefore, when to line
When road cable side carries out Maintenance and Repair, to prevent from carrying out breaker electronic accidentally sub-switching operation.Fig. 3 is that breaker open operation controls back
Road, Q0-F are opening coil, when breaker at the time of apposition, breaker normally closed contact Q0-S1 is in coincidence, as long as there is separating brake at this time
Order, breaker will electronic separating brake, cause line side that cannot complete to be grounded.
Summary of the invention
The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a kind of three station grounding switchs
The control method being latched between breaker open operation is solved in the case where switchgear control loop does not power off, and earthing switch is being tieed up
Breaker electronic accidentally separating brake is prevented when protecting ground state, it is ensured that maintenance grounding safety is reliable.
In order to solve the above-mentioned technical problem, the technical scheme is that
A kind of control method being latched between three station grounding switch and breaker open operation, comprising the following steps:
Step 1 seals in the normally closed contact of earthing switch in the electronic sub-gate circuit of breaker；
Step 2 seals in the normally closed contact of breaker in earthing switch control loop；
Step 3 closes a floodgate earthing switch, then closes a floodgate to breaker, and the normally closed contact of earthing switch disconnects, and breaks
Device electronic sub-gate circuit in road disconnects, while being latched grounding switch tripping operation.
Further, it after step 3, presses breaker manual brake separating button and separating brake is carried out to breaker.
Using above-mentioned technical proposal, the present invention only increases an earthing switch in the electronic sub-gate circuit of breaker
Normally closed contact, the normally closed contact of a breaker has been sealed in earthing switch control loop, it is real without increasing other attachmentes
In the case that switchgear control loop does not power off when having showed maintenance ground connection, prevent breaker electronic under earthing switch "on" position
Accidentally separating brake, operation is reliable and secure, and execute-in-place is easy to maintain.
Detailed description of the invention
Three stations of the control method that Fig. 1 is latched between three station grounding switch of one kind and breaker open operation of the invention connect
The electrical schematic diagram of ground switch；
Fig. 2 is the electrical schematic diagram of the electronic sub-gate circuit of breaker of the prior art of the invention；
Fig. 3 is the electrical schematic diagram of the electronic sub-gate circuit of improved breaker of the invention；
Fig. 4 is the electrical schematic diagram that breaker of the invention is latched earthing switch operation at the time of apposition；
Fig. 5 is the electrical connection diagram on switch board housing of the invention.
In figure, 1, closing by hand button, 2, manual brake separating button, 3, counter, 4, energy storage state instruction, 5, stored energy operation
Hole, 6, ground connection instruction, 7, ground connection handle hole, 8, isolation instruction, 9, isolated operation hole, 10 ground connection blocking levers, 11, isolation interlocking
Bar, 12, conjunction point instruction, 3031, disconnecting switch, 3031E, earthing switch, 303, breaker.
Specific embodiment
In order that the present invention can be more clearly and readily understood, right below according to specific embodiment and in conjunction with attached drawing
The present invention is described in further detail.
As shown in Fig. 1~5, the control method being latched between a kind of three station grounding switch and breaker open operation, including it is following
Step:
Step 1 seals in the normally closed contact Q8-S1 of earthing switch in the electronic sub-gate circuit of breaker；
Step 2 seals in the normally closed contact Q0-S1 of breaker in earthing switch control loop；
Step 3 closes a floodgate earthing switch, then closes a floodgate to breaker, and the normally closed contact Q8-S1 of earthing switch is disconnected
It opens, the electronic sub-gate circuit of breaker disconnects, at this time cannot be to the electronic separating brake of breaker, while the normally closed contact Q0-S1 of breaker
It is converted into normally open by normally closed, is equivalent to the disconnection of earthing switch control loop, earthing switch locking, since breaker is in coincidence
When locking earthing switch operation, at this time earthing switch can not carry out it is electronic, manual etc. operation, earthing switch maintenance be grounded can
It leans on.
After step 3, when releasing maintenance ground connection, presses breaker manual brake separating button and separating brake is carried out to breaker,
Because releasing maintenance ground connection is that work on the spot is completed, when confirmation can release maintenance ground connection, breaker need to be carried out at the scene
Manual brake separating operation, while breaker manual brake separating button has safeguard procedures, prevents accidentally separating brake, after manual brake separating breaker,
Sub-switching operation is carried out to earthing switch again, releases maintenance ground connection, whole process safe operation is reliable.
Particular embodiments described above, pair present invention solves the technical problem that, technical scheme and beneficial effects carry out
It is further described, it should be understood that the above is only a specific embodiment of the present invention, is not limited to this
Invention, all within the spirits and principles of the present invention, any modification, equivalent substitution, improvement and etc. done should be included in this hair
Within bright protection scope.
Claims (2)
1. the control method being latched between a kind of three station grounding switchs and breaker open operation, which comprises the following steps:
Step 1 seals in the normally closed contact of earthing switch in the electronic sub-gate circuit of breaker；
Step 2 seals in the normally closed contact of breaker in earthing switch control loop；
Step 3 closes a floodgate earthing switch, then closes breaker, and the normally closed contact of earthing switch disconnects, and electronic point of breaker
Lock circuit disconnects, while being latched grounding switch tripping operation.
2. the control method being latched between three station grounding switch of switchgear according to claim 1 and breaker open operation,
It is characterized in that: after step 3, pressing breaker manual brake separating button and separating brake is carried out to breaker.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811285842.0A CN109192569B (en) | 2018-10-31 | 2018-10-31 | Control method for locking between three-station grounding switch and breaker opening |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811285842.0A CN109192569B (en) | 2018-10-31 | 2018-10-31 | Control method for locking between three-station grounding switch and breaker opening |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109192569A true CN109192569A (en) | 2019-01-11 |
| CN109192569B CN109192569B (en) | 2021-04-27 |
Family
ID=64940878
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811285842.0A Active CN109192569B (en) | 2018-10-31 | 2018-10-31 | Control method for locking between three-station grounding switch and breaker opening |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109192569B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110601062A (en) * | 2019-10-11 | 2019-12-20 | 广东电网有限责任公司 | GIS combined electrical apparatus with status indicator lamp |
| CN111030056A (en) * | 2019-12-13 | 2020-04-17 | 张家港宏昌钢板有限公司 | Interlocking practice control method for preventing misoperation on two sides of circuit |
| CN112509850A (en) * | 2020-11-19 | 2021-03-16 | 广东电网有限责任公司 | Ground knife electric locking device and circuit interval with same |
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| WO2002080323A1 (en) * | 2001-03-30 | 2002-10-10 | Alstom | Multifunctional switch/disconnect |
| CN201868270U (en) * | 2010-11-15 | 2011-06-15 | 河南省电力公司濮阳供电公司 | Electric control disconnector operating mechanism latching circuit |
| CN206004143U (en) * | 2016-08-17 | 2017-03-08 | 安徽华谊化工有限公司 | Transformer cabinet door safety interlock system |
| CN206283165U (en) * | 2016-12-16 | 2017-06-27 | 保定天威集团特变电气有限公司 | A kind of transformer neutral point earthing resistance cabinet |
| US20170271099A1 (en) * | 2014-11-04 | 2017-09-21 | Cooper Technologies Company | Network transformer primary disconnect assembly |
| CN107465175A (en) * | 2016-06-06 | 2017-12-12 | 上海勃继智能科技有限公司 | Prevent the microcomputer protecting device of maloperation |
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2018
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002080323A1 (en) * | 2001-03-30 | 2002-10-10 | Alstom | Multifunctional switch/disconnect |
| CN201868270U (en) * | 2010-11-15 | 2011-06-15 | 河南省电力公司濮阳供电公司 | Electric control disconnector operating mechanism latching circuit |
| US20170271099A1 (en) * | 2014-11-04 | 2017-09-21 | Cooper Technologies Company | Network transformer primary disconnect assembly |
| CN107465175A (en) * | 2016-06-06 | 2017-12-12 | 上海勃继智能科技有限公司 | Prevent the microcomputer protecting device of maloperation |
| CN206004143U (en) * | 2016-08-17 | 2017-03-08 | 安徽华谊化工有限公司 | Transformer cabinet door safety interlock system |
| CN206283165U (en) * | 2016-12-16 | 2017-06-27 | 保定天威集团特变电气有限公司 | A kind of transformer neutral point earthing resistance cabinet |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110601062A (en) * | 2019-10-11 | 2019-12-20 | 广东电网有限责任公司 | GIS combined electrical apparatus with status indicator lamp |
| CN111030056A (en) * | 2019-12-13 | 2020-04-17 | 张家港宏昌钢板有限公司 | Interlocking practice control method for preventing misoperation on two sides of circuit |
| CN111030056B (en) * | 2019-12-13 | 2021-10-08 | 张家港宏昌钢板有限公司 | Interlocking practice control method for preventing misoperation on two sides of circuit |
| CN112509850A (en) * | 2020-11-19 | 2021-03-16 | 广东电网有限责任公司 | Ground knife electric locking device and circuit interval with same |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109192569B (en) | 2021-04-27 |
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