CN209432966U - Substation 220kV circuit-breaker switching on-off monitoring circuit - Google Patents
Substation 220kV circuit-breaker switching on-off monitoring circuit Download PDFInfo
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- CN209432966U CN209432966U CN201821985419.7U CN201821985419U CN209432966U CN 209432966 U CN209432966 U CN 209432966U CN 201821985419 U CN201821985419 U CN 201821985419U CN 209432966 U CN209432966 U CN 209432966U
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- breaker
- breaker switching
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 42
- 230000007246 mechanism Effects 0.000 claims description 2
- 230000001360 synchronised effect Effects 0.000 claims 1
- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 4
- 238000000605 extraction Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000004146 energy storage Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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Abstract
Substation 220kV circuit-breaker switching on-off monitoring circuit designed by the utility model, one end of opening button SB connects positive pole, one end of the other end connection opening coil Y2 of opening button SB, one end of circuit-breaker switching on-off primary circuit normally opened auxiliary contact Q1 and circuit-breaker switching on-off primary circuit normally closed auxiliary contact Q2 are all connected with the other end of opening coil Y2, the other end of the normally opened auxiliary contact Q1 in circuit-breaker switching on-off primary circuit connects power cathode, one end of the other end connection connecting terminal M1 of circuit-breaker switching on-off primary circuit normally closed auxiliary contact Q2, the other end of connecting terminal M1 accesses power cathode, connecting dividing lock circuit monitors resistance R between two terminals of plug terminal M2, plug terminal M2 can be inserted into connecting terminal M1.The monitoring circuit of the utility model can monitor resistance by efficient quick-replaceable when not powering off.
Description
Technical field
The utility model relates to power transmission and transformation electrical equipment technical fields, and in particular to a kind of substation 220kV breaker point
Combined floodgate monitoring circuit.
Background technique
Substation's inner breaker often will appear divide-shut brake monitoring circuit failure in day-to-day operation, and the failure most cases
Cause for the monitoring resistance damage in divide-shut brake monitoring circuit down, therefore can fast and safely replace in divide-shut brake monitoring circuit
Monitor that resistance is particularly important to the stable operation of breaker.Monitoring resistance event in processing replacement divide-shut brake monitoring circuit at present
When barrier, Field Force must cut the wiring for being linked at monitoring resistance both ends, using the side of welding after changing new monitoring resistance
Formula takes back in monitoring circuit.This processing mode is time-consuming and laborious and has biggish operating risk.
Utility model content
The purpose of this utility model seeks to provide a kind of substation 220kV circuit-breaker switching on-off monitoring circuit, this is practical
Novel monitoring circuit can monitor resistance by efficient quick-replaceable when not powering off, and circuit connection is relatively reliable.
In order to achieve this, a kind of substation 220kV circuit-breaker switching on-off monitoring circuit designed by the utility model, it
Including the normally opened auxiliary contact Q1 in circuit-breaker switching on-off primary circuit, circuit-breaker switching on-off primary circuit normally closed auxiliary contact Q2, divide
Lock button SB, opening coil Y2, wherein the other end connection of one end connection positive pole, opening button SB of opening button SB
One end of opening coil Y2, the normally opened auxiliary contact Q1 in circuit-breaker switching on-off primary circuit and circuit-breaker switching on-off primary circuit are normal
The one end for closing auxiliary contact Q2 is all connected with the other end of opening coil Y2, the normally opened auxiliary contact Q1 in circuit-breaker switching on-off primary circuit
The other end connect power cathode, it is characterised in that: it further include divide-shut brake circuit monitoring resistance R, connecting terminal M1 and with
The other end of connecting terminal M1 matched plug terminal M2, circuit-breaker switching on-off primary circuit normally closed auxiliary contact Q2 connect wiring
One end of terminal M1, the other end of connecting terminal M1 access power cathode, connecting dividing between two terminals of plug terminal M2
Lock circuit monitors that resistance R, plug terminal M2 can be inserted into connecting terminal M1, makes divide-shut brake circuit monitoring resistance R access breaker
Between the other end and power cathode of divide-shut brake primary circuit normally closed auxiliary contact Q2.
The utility model accesses original in such a way that the monitoring resistance of welding manner connection is by plug-in terminal block
Divide-shut brake monitoring circuit.It can be divided efficient quick-replaceable in case of constant power using monitoring circuit after the circuit of the utility model
Closing circuit monitors resistance R, and circuit connection is relatively reliable, and the utility model uses connecting terminal M1 and the M2 conduct of plug terminal
Divide-shut brake circuit monitors the carrier of resistance R access monitoring circuit, when replacing divide-shut brake circuit monitoring resistance R, does not need to prison
It is powered off depending on circuit, directly extraction plug terminal M2, the process for replacing resistance are fast and safely reliable.And it avoids
Replacement monitoring resistance bring risk in breaker operational process, it is ensured that breaker stable operation.
Detailed description of the invention
Fig. 1 is the electrical block diagram of the utility model.
Fig. 2 is the structural representation that divide-shut brake circuit monitors resistance R, connecting terminal M1 and plug terminal M2 in the utility model
Figure；
Specific embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail:
A kind of substation 220kV circuit-breaker switching on-off monitoring circuit of the utility model, as shown in Fig. 1 and 2, it includes disconnected
The normally opened auxiliary contact Q1 in road device divide-shut brake primary circuit, circuit-breaker switching on-off primary circuit normally closed auxiliary contact Q2, opening button
SB, opening coil Y2, wherein one end connection positive pole of opening button SB, the other end of opening button SB connect separating brake line
Enclose one end of Y2, the normally closed auxiliary touching of the normally opened auxiliary contact Q1 in circuit-breaker switching on-off primary circuit and circuit-breaker switching on-off primary circuit
One end of point Q2 is all connected with the other end of opening coil Y2, the other end of the normally opened auxiliary contact Q1 in circuit-breaker switching on-off primary circuit
Connect power cathode, it further include divide-shut brake circuit monitoring resistance R, connecting terminal M1 and with the matched plug of connecting terminal M1
One end of the other end connection connecting terminal M1 of terminal M2, circuit-breaker switching on-off primary circuit normally closed auxiliary contact Q2, terminals
The other end of sub- M1 accesses power cathode, and connecting dividing lock circuit monitors resistance R, plug between two terminals of plug terminal M2
Terminal M2 can be inserted into connecting terminal M1, keep divide-shut brake circuit monitoring resistance R access circuit-breaker switching on-off primary circuit normally closed auxiliary
It helps between the other end and power cathode of contact Q2.
In above-mentioned technical proposal, it further includes breaker oil pressure state control normally-closed contact KB, breaker oil pressure state control
The other end of one end connection opening button SB of normally-closed contact KB processed, breaker oil pressure state control the other end of normally-closed contact KB
Connect one end of opening coil Y2.When the switch spring of breaker in substation's 220kV circuit-breaker switching on-off monitoring primary circuit
When energy storage is normal, it is normally closed on state that breaker oil pressure state, which controls normally-closed contact KB, when switch spring energy storage exception, open circuit
It is off-state that device oil pressure state, which controls normally-closed contact KB,.
In above-mentioned technical proposal, it further includes protection separating brake line N1, and one end connection power supply of the protection separating brake line N1 is just
Pole, the other end of the other end connection opening button SB of protection separating brake line N1.Protection separating brake line N1 is directly accessed Microcomputer Protection
In device, automatic trip function in distant place when realizing failure.
In above-mentioned technical proposal, the normally opened auxiliary contact Q1 in the circuit-breaker switching on-off primary circuit and circuit-breaker switching on-off
Primary circuit normally closed auxiliary contact Q2 synchronization action always.That is the normally opened auxiliary contact Q1 in circuit-breaker switching on-off primary circuit is connected
Make, circuit-breaker switching on-off primary circuit normally closed auxiliary contact Q2 is disconnected.The normally opened auxiliary contact Q1 in circuit-breaker switching on-off primary circuit
Intuitively reflect the opening and closing state of breaker with circuit-breaker switching on-off primary circuit normally closed auxiliary contact Q2.Above-mentioned auxiliary contact
Axis be connected with the movement axis of breaker, the axis of auxiliary contact also follows by action when breaker actuation, when breaker open operation, auxiliary
The axis of contact also and then goes to the position of separating brake, and auxiliary contact have some closures there have been there is some openings.Under normal conditions
Breaker is defined under gate-dividing state, Q1 closure is known as normally opened contact, and Q2, which is opened, is known as normally-closed contact.
In above-mentioned technical proposal, when the opening button SB is pressed, opening coil Y2 is disconnected.Scene need manually into
Row separating brake, for example test, distant place separating brake is invalid etc..
In above-mentioned technical proposal, the shell of the connecting terminal M1 is mounted on circuit breaker mechanism case inner terminal row's guide rail.
In above-mentioned technical proposal, connecting terminal M1 selects Felix Typ UK 4-T connecting terminal, plug terminal M2 choosing
With Felix Typ ST-BE plug terminal.
The working process of the utility model is as follows: the breaker of circuit-breaker switching on-off primary circuit is in quartile, breaker point
Combined floodgate primary circuit normally closed auxiliary contact Q2 closure, monitoring circuit conducting monitor the electricity on resistance R by measurement divide-shut brake circuit
Pressure is to determine whether the circuit is normal.Illustrate that the loop fault or divide-shut brake return when on divide-shut brake circuit monitoring resistance R without pressure
Road monitors resistance R failure.When divide-shut brake circuit monitors resistance R failure, it is only necessary to by plug terminal M2 from connecting terminal M1
Then extraction replaces divide-shut brake circuit directly in plug terminal M2 and monitors that resistance R, the utility model use terminals
Carrier of the sub- M1 and plug terminal M2 as divide-shut brake circuit monitoring resistance R access monitoring circuit, is supervised in replacement divide-shut brake circuit
It when apparent resistance R, does not need to power off monitoring circuit, directly extraction plug terminal M2, the process for replacing resistance are quick
Securely and reliably.
The content that this specification is not described in detail belongs to the prior art well known to professional and technical personnel in the field.
Claims (6)
1. a kind of substation 220kV circuit-breaker switching on-off monitoring circuit, it includes the normally opened auxiliary in circuit-breaker switching on-off primary circuit
Contact Q1, circuit-breaker switching on-off primary circuit normally closed auxiliary contact Q2, opening button SB, opening coil Y2, wherein opening button
One end connection positive pole of SB, the other end of opening button SB connect one end of opening coil Y2, and circuit-breaker switching on-off is primary
One end of circuit normally opened auxiliary contact Q1 and circuit-breaker switching on-off primary circuit normally closed auxiliary contact Q2 are all connected with opening coil Y2
The other end, the other end of the normally opened auxiliary contact Q1 in circuit-breaker switching on-off primary circuit connects power cathode, it is characterised in that: it
Further include divide-shut brake circuit monitoring resistance R, connecting terminal M1 and with the matched plug terminal M2 of connecting terminal M1, breaker point
One end of the other end connection connecting terminal M1 of combined floodgate primary circuit normally closed auxiliary contact Q2, the other end access of connecting terminal M1
Power cathode, connecting dividing lock circuit monitors that resistance R, plug terminal M2 can be inserted into wiring between two terminals of plug terminal M2
In terminal M1, make the other end of divide-shut brake circuit monitoring resistance R access circuit-breaker switching on-off primary circuit normally closed auxiliary contact Q2
Between power cathode.
2. substation 220kV circuit-breaker switching on-off monitoring circuit according to claim 1, it is characterised in that: it further includes
Breaker oil pressure state controls normally-closed contact KB, and one end that breaker oil pressure state controls normally-closed contact KB connects opening button SB
The other end, breaker oil pressure state control normally-closed contact KB the other end connection opening coil Y2 one end.
3. substation 220kV circuit-breaker switching on-off monitoring circuit according to claim 1, it is characterised in that: it further includes
Separating brake line N1 is protected, one end of the protection separating brake line N1 connects positive pole, and the other end of protection separating brake line N1 connects separating brake
The other end of button SB.
4. substation 220kV circuit-breaker switching on-off monitoring circuit according to claim 1, it is characterised in that: the open circuit
The normally opened auxiliary contact Q1 in device divide-shut brake primary circuit is synchronous always dynamic with circuit-breaker switching on-off primary circuit normally closed auxiliary contact Q2
Make.
5. substation 220kV circuit-breaker switching on-off monitoring circuit according to claim 1, it is characterised in that: the separating brake
When button SB is pressed, opening coil Y2 is disconnected.
6. substation 220kV circuit-breaker switching on-off monitoring circuit according to claim 1, it is characterised in that: the wiring
The shell of terminal M1 is mounted on circuit breaker mechanism case inner terminal row's guide rail.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821985419.7U CN209432966U (en) | 2018-11-29 | 2018-11-29 | Substation 220kV circuit-breaker switching on-off monitoring circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821985419.7U CN209432966U (en) | 2018-11-29 | 2018-11-29 | Substation 220kV circuit-breaker switching on-off monitoring circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209432966U true CN209432966U (en) | 2019-09-24 |
Family
ID=67968388
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821985419.7U Active CN209432966U (en) | 2018-11-29 | 2018-11-29 | Substation 220kV circuit-breaker switching on-off monitoring circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209432966U (en) |
-
2018
- 2018-11-29 CN CN201821985419.7U patent/CN209432966U/en active Active
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