CN109921325A - A kind of switchgear closing locking circuit - Google Patents
A kind of switchgear closing locking circuit Download PDFInfo
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- CN109921325A CN109921325A CN201910183685.0A CN201910183685A CN109921325A CN 109921325 A CN109921325 A CN 109921325A CN 201910183685 A CN201910183685 A CN 201910183685A CN 109921325 A CN109921325 A CN 109921325A
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- contact
- normally closed
- closing locking
- closed contact
- main shaft
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Abstract
The invention discloses a kind of switchgear closing locking circuits, including handcart work location assistance contact normally closed contact S9, handcart testing position auxiliary contact normally closed contact S8, closing locking electromagnet Y1, closing locking electromagnet auxiliary contact normally closed contact S2 and combined floodgate buckle releaser Y3, the handcart work location assistance contact normally closed contact S9 is connect by rectifier cell V1 with the closing locking electromagnet Y1 with after handcart testing position auxiliary contact normally closed contact S8 series connection, the closing locking electromagnet Y1 controls the folding of the closing locking electromagnet auxiliary contact normally closed contact S2, the closing locking electromagnet auxiliary contact normally closed contact S2 connects with the combined floodgate buckle releaser Y3, Y1 relay normally closed contact is concatenated in closing circuit, relay obtains electric during hand handcart, disconnect closing circuit , when operating position or testing position must not electricity, circuit is connected.
Description
Technical field
The invention belongs to circuit design fields, and in particular to a kind of switchgear closing locking circuit.
Background technique:
Combined floodgate of the handcart in testing position or operating position, in closing circuit in current switchgear closing locking circuit
Locking relay it is electric, switch can normal division；But the capacitor standoff breaker in system is usually at long-time
In hot stand-by duty, then the relay is constantly in obtain electricity condition, is easily damaged, once damage will make divide-shut brake circuit disconnected
It opens, it can not normal division switch.And 220kV substation is unattended substation under normal circumstances, road is again remote, once hair
Intercrescence lock loop fault, it will influence system safety.
Summary of the invention
The purpose of the present invention is to provide a kind of switchgear closing locking circuits, caused by the prior art above-mentioned to solve
Multinomial defect.
A kind of switchgear closing locking circuit, including handcart work location assistance contact normally closed contact S9, handcart test position
Set auxiliary contact normally closed contact S8, closing locking electromagnet Y1, closing locking electromagnet auxiliary contact normally closed contact S2 and combined floodgate
Buckle releaser Y3, the handcart work location assistance contact normally closed contact S9 and handcart testing position auxiliary contact normally closed contact S8 string
It is connect by rectifier cell V1 with the closing locking electromagnet Y1 after connection, the closing locking electromagnet Y1 controls the combined floodgate
The folding of latching electromagnet auxiliary contact normally closed contact S2, the closing locking electromagnet auxiliary contact normally closed contact S2 with it is described
Combined floodgate buckle releaser Y3 series connection.
Preferably, breaker is connected between the handcart testing position auxiliary contact normally closed contact S8 and rectifier cell V1
Main shaft auxiliary contact normally closed contact S3-1.
Preferably, the closing locking electromagnet auxiliary contact normally closed contact S2 with described combined floodgate buckle releaser Y3 concatenated time
Breaker main shaft auxiliary contact normal opened contact S3-4, in-house anti-trip relay K0, anti-trip relay K0 are also in series in road
Investment switching line JS1, divider resistance R0, breaker main shaft auxiliary contact normally closed contact S3-6 and breaker main shaft auxiliary touching
Point normally closed contact S3-3, connects between the closing locking electromagnet auxiliary contact normally closed contact S2 and the combined floodgate buckle releaser Y3
There is energy storage motor auxiliary contact normal opened contact S1.
Preferably, the both ends of the divider resistance R0d are parallel with divider resistance R0 investment switching line JP1.
Preferably, the both ends of the breaker main shaft auxiliary contact S3-4 are parallel with that breaker main shaft auxiliary contact are normally opened to be connect
Point S3-5.
Preferably, the breaker main shaft auxiliary contact normally closed contact S3-3 and the breaker main shaft auxiliary contact are normally closed
Access has breaker main shaft auxiliary contact normally closed contact S3-2 between contact S3-6.
Preferably, one end of the divider resistance R0 is connected with rectifier cell V3 input terminal, the rectifier cell V3 output
End is connect with the combined floodgate buckle releaser Y3.
Preferably, the anti-trip relay K0 respectively with the breaker main shaft auxiliary contact normally closed contact S3-6 and described
The S3-4 connection of breaker main shaft auxiliary contact.
The present invention has the advantages that this kind of switchgear closing locking circuit, it is normally closed to concatenate Y1 relay in closing circuit
Contact, relay obtains electric during hand handcart, disconnects closing circuit, when operating position or testing position must not electricity, conducting
Circuit had both controlled the on-off in circuit, had also been protected to relay, and be less likely to be damaged relay, it is ensured that in substation
Capacitor standoff circuit-breaker switching on-off loop fault rate it is close, the quality of voltage of substation's power supply improves, custom system voltage
Quality advance reduces the manpower and material resources loss occurred by control loop failure.
Detailed description of the invention
Fig. 1 is electrical block diagram of the invention.
Fig. 2 be it is of the invention do not improve before structural schematic diagram.
Specific embodiment
To be easy to understand the technical means, the creative features, the aims and the efficiencies achieved by the present invention, below with reference to
Specific embodiment, the present invention is further explained.
As shown in Figure 1 to Figure 2, a kind of switchgear closing locking circuit, including location assistance contact is normally closed connects for handcart work
Point S9, handcart testing position auxiliary contact normally closed contact S8, closing locking electromagnet Y1, closing locking electromagnet auxiliary contact are normal
Contact S2 and combined floodgate buckle releaser Y3 are closed, the handcart work location assistance contact normally closed contact S9 and handcart testing position auxiliary are touched
It is connect by rectifier cell V1 with the closing locking electromagnet Y1 after point normally closed contact S8 series connection, the closing locking electromagnet
Y1 controls the folding of the closing locking electromagnet auxiliary contact normally closed contact S2, and the closing locking electromagnet auxiliary contact are normal
Contact S2 is closed to connect with the combined floodgate buckle releaser Y3.
It is worth noting that, being connected between the handcart testing position auxiliary contact normally closed contact S8 and rectifier cell V1
Breaker main shaft auxiliary contact normally closed contact S3-1.
In the present embodiment, the closing locking electromagnet auxiliary contact normally closed contact S2 and combined floodgate buckle releaser Y3 goes here and there
Also be in series in the circuit of connection breaker main shaft auxiliary contact normal opened contact S3-4, in-house anti-trip relay K0, it is anti-jump after
Electric appliance K0 investment switching line JS1, divider resistance R0, breaker main shaft auxiliary contact normally closed contact S3-6 and breaker main shaft
Auxiliary contact normally closed contact S3-3, the closing locking electromagnet auxiliary contact normally closed contact S2 and the combined floodgate buckle releaser Y3 it
Between be connected with energy storage motor auxiliary contact normal opened contact S1.
In the present embodiment, the both ends of the divider resistance R0d are parallel with divider resistance R0 investment switching line JP1.
In the present embodiment, the both ends of the breaker main shaft auxiliary contact S3-4 are parallel with breaker main shaft auxiliary contact
Normal opened contact S3-5.
In the present embodiment, the breaker main shaft auxiliary contact normally closed contact S3-3 and breaker main shaft auxiliary are touched
Access has breaker main shaft auxiliary contact normally closed contact S3-2 between point normally closed contact S3-6.
In the present embodiment, one end of the divider resistance R0 is connected with rectifier cell V3 input terminal, the rectifier cell
V3 output end is connect with the combined floodgate buckle releaser Y3.
In the present embodiment, the anti-trip relay K0 respectively with the breaker main shaft auxiliary contact normally closed contact S3-6
It is connected with the breaker main shaft auxiliary contact S3-4.
This kind of switchgear closing locking circuit concatenates Y1 relay normally closed contact, hand handcart process in closing circuit
Middle relay obtains electric, disconnects closing circuit, when operating position or testing position must not electricity, circuit is connected, both controls circuit
On-off, also relay is protected, is less likely to be damaged relay, it is ensured that the capacitor standoff breaker in substation
Divide-shut brake loop fault rate is close, and the quality of voltage of substation's power supply improves, and custom system quality of voltage improves, and reduces because of control
Loop fault and occur manpower and material resources loss.
As known by the technical knowledge, the present invention can pass through the embodiment party of other essence without departing from its spirit or essential feature
Case is realized.Therefore, embodiment disclosed above, in all respects are merely illustrative, not the only.Institute
Have within the scope of the present invention or is included in the invention in the change being equal in the scope of the present invention.
Claims (8)
1. a kind of switchgear closing locking circuit, which is characterized in that including handcart work location assistance contact normally closed contact S9, hand
Vehicle testing position auxiliary contact normally closed contact S8, closing locking electromagnet Y1, closing locking electromagnet auxiliary contact normally closed contact
S2 and combined floodgate buckle releaser Y3, the handcart work location assistance contact normally closed contact S9 and handcart testing position auxiliary contact are normally closed
It is connect by rectifier cell V1 with the closing locking electromagnet Y1 after contact S8 series connection, the closing locking electromagnet Y1 control
The folding of the closing locking electromagnet auxiliary contact normally closed contact S2, the closing locking electromagnet auxiliary contact normally closed contact
S2 connects with the combined floodgate buckle releaser Y3.
2. a kind of switchgear closing locking circuit according to claim 1, it is characterised in that: the handcart testing position is auxiliary
It helps between contact normally closed contact S8 and rectifier cell V1 and is connected with breaker main shaft auxiliary contact normally closed contact S3-1.
3. a kind of switchgear closing locking circuit according to claim 1, it is characterised in that: the closing locking electromagnet
It is normal that breaker main shaft auxiliary contact are also in series in the concatenated circuit the auxiliary contact normally closed contact S2 and combined floodgate buckle releaser Y3
Open contact S3-4, in-house anti-trip relay K0, anti-trip relay K0 investment switching line JS1, divider resistance R0, breaker
Main shaft auxiliary contact normally closed contact S3-6 and breaker main shaft auxiliary contact normally closed contact S3-3, the closing locking electromagnet
Energy storage motor auxiliary contact normal opened contact S1 is connected between auxiliary contact normally closed contact S2 and the combined floodgate buckle releaser Y3.
4. a kind of switchgear closing locking circuit according to claim 3, it is characterised in that: the divider resistance R0d's
Both ends are parallel with divider resistance R0 investment switching line JP1.
5. a kind of switchgear closing locking circuit according to claim 3, it is characterised in that: the breaker main shaft auxiliary
The both ends of contact S3-4 are parallel with breaker main shaft auxiliary contact normal opened contact S3-5.
6. a kind of switchgear closing locking circuit according to claim 1, it is characterised in that: the breaker main shaft auxiliary
Access has breaker main shaft auxiliary between contact normally closed contact S3-3 and the breaker main shaft auxiliary contact normally closed contact S3-6
Contact normally closed contact S3-2.
7. a kind of switchgear closing locking circuit according to claim 1, it is characterised in that: the one of the divider resistance R0
End is connected with rectifier cell V3 input terminal, and the rectifier cell V3 output end is connect with the combined floodgate buckle releaser Y3.
8. a kind of switchgear closing locking circuit according to claim 1, it is characterised in that: the anti-trip relay K0 points
It is not connect with the breaker main shaft auxiliary contact normally closed contact S3-6 and the breaker main shaft auxiliary contact S3-4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910183685.0A CN109921325B (en) | 2019-03-12 | 2019-03-12 | Switch cabinet closing locking loop |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910183685.0A CN109921325B (en) | 2019-03-12 | 2019-03-12 | Switch cabinet closing locking loop |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109921325A true CN109921325A (en) | 2019-06-21 |
| CN109921325B CN109921325B (en) | 2020-08-21 |
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ID=66964324
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910183685.0A Active CN109921325B (en) | 2019-03-12 | 2019-03-12 | Switch cabinet closing locking loop |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109921325B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110474288A (en) * | 2019-09-02 | 2019-11-19 | 广东韶钢松山股份有限公司 | Programmable microcomputer protecting device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3793493A (en) * | 1972-08-21 | 1974-02-19 | Ite Imperial Corp | Draw out circuit breaker and compartment interlock and secondary contact actuation |
| CN202495702U (en) * | 2012-02-15 | 2012-10-17 | 安徽龙波电气有限公司 | Trigger device used for circuit breaker closing and locking device |
| CN103187692A (en) * | 2011-12-27 | 2013-07-03 | 施耐德电器工业公司 | Interlocking device for switch-on and locking of breaker trolley at middle position |
| CN203707637U (en) * | 2014-01-24 | 2014-07-09 | 中山市明阳电器有限公司 | Bus coupler cabinet handcart and interlocking circuit of bus coupler isolation cabinet handcart |
| CN205070275U (en) * | 2015-10-13 | 2016-03-02 | 江苏省电力公司常州供电公司 | In put cabinet circuit breaker handcart shutting return circuit of closing a floodgate |
| CN109216100A (en) * | 2018-09-09 | 2019-01-15 | 湛江电力有限公司 | A kind of monitoring indicating circuit of power switch vacuum circuit breaker |
-
2019
- 2019-03-12 CN CN201910183685.0A patent/CN109921325B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3793493A (en) * | 1972-08-21 | 1974-02-19 | Ite Imperial Corp | Draw out circuit breaker and compartment interlock and secondary contact actuation |
| CN103187692A (en) * | 2011-12-27 | 2013-07-03 | 施耐德电器工业公司 | Interlocking device for switch-on and locking of breaker trolley at middle position |
| CN202495702U (en) * | 2012-02-15 | 2012-10-17 | 安徽龙波电气有限公司 | Trigger device used for circuit breaker closing and locking device |
| CN203707637U (en) * | 2014-01-24 | 2014-07-09 | 中山市明阳电器有限公司 | Bus coupler cabinet handcart and interlocking circuit of bus coupler isolation cabinet handcart |
| CN205070275U (en) * | 2015-10-13 | 2016-03-02 | 江苏省电力公司常州供电公司 | In put cabinet circuit breaker handcart shutting return circuit of closing a floodgate |
| CN109216100A (en) * | 2018-09-09 | 2019-01-15 | 湛江电力有限公司 | A kind of monitoring indicating circuit of power switch vacuum circuit breaker |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110474288A (en) * | 2019-09-02 | 2019-11-19 | 广东韶钢松山股份有限公司 | Programmable microcomputer protecting device |
| CN110474288B (en) * | 2019-09-02 | 2021-06-25 | 广东韶钢松山股份有限公司 | Programmable microcomputer protection device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109921325B (en) | 2020-08-21 |
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