CN207765383U - SF6 breaker control circuits - Google Patents
SF6 breaker control circuits Download PDFInfo
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- CN207765383U CN207765383U CN201721505826.9U CN201721505826U CN207765383U CN 207765383 U CN207765383 U CN 207765383U CN 201721505826 U CN201721505826 U CN 201721505826U CN 207765383 U CN207765383 U CN 207765383U
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- motor
- energy storage
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- power supply
- circuit
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Abstract
The utility model discloses a kind of SF6 breaker control circuits; including breaker control circuit and motor energy storage control loop; breaker control circuit is with motor energy storage control loop respectively by individual power supply power supply; motor energy storage control loop includes the electric motor loop being in parallel and motor control and delay protection circuit, and motor energy storage control loop is by electric motor loop power supply power supply；The control loop is by the way that motor control and delay protection circuit to be parallel in motor energy storage control loop by electric motor loop power supply power supply; therefore when motor energy storage timeout case occurs; without disconnected control loop power supply, there is remarkable effect in such circuit to power network safety operation.
Description
Technical field
The utility model is related to high-tension switch gear, more particularly to a kind of SF6 breaker control circuits.
Background technology
LW36-126 type SF6 breakers extensive utilization in the power system, in the design of its control loop, motor energy storage control
Circuit processed is present in breaker control circuit, using breaker control power supply as motor energy storage control loop power supply, i.e., electric
Machine energy storage control loop shares power supply all the way with breaker control circuit.In actual moving process, it is super often to there is motor energy storage
When after the case where needing control loop power cut-off could link up tank circuit again.Disconnect the breaker control power supply phase
Between, control loop will be unable to work normally, if permanent fault occurs for circuit at this time, breaker can cause jump of bypassing the immediate leadership because of tripping
Lock expands accident range！
Utility model content
In view of this, the purpose of this utility model is to provide a kind of SF6 breaker control circuits, it is super when motor energy storage occurs
When situation when, without disconnected control loop power supply.
The purpose of this utility model is achieved through the following technical solutions：
SF6 breaker control circuits, including breaker control circuit and motor energy storage control loop, the breaker control
With motor energy storage control loop respectively by individual power supply power supply, the motor energy storage control loop includes the electricity being in parallel in circuit
Machine circuit and motor control and delay protection circuit, the motor energy storage control loop is by electric motor loop power supply power supply.
Further, the electric motor loop includes that two energy storage intermediate relay normally open contacts being in series and setting are normal two
Ammeter between open contact.
Further, motor control and delay protection circuit include the first circuit being in parallel and second servo loop, described
First circuit includes that the out-of-date failure protector normally closed interlock of energy storage intermediate relay coil, motor being in series and one are normally closed tactile
Point, the normally-closed contact are controlled by breaker control circuit, and the second circuit includes the out-of-date failure protector coil of motor, institute
It is in series with the energy storage intermediate relay normally open contact being in parallel and the out-of-date failure of motor after stating the out-of-date failure protector coil of motor
Protector normally open contact.
The utility model has the beneficial effects that：
The SF6 breaker control circuits of the utility model, by the way that motor control and delay protection circuit are parallel to motor
By electric motor loop power supply power supply in energy storage control loop, therefore when motor energy storage timeout case occurs, without disconnected control loop
There is remarkable effect in power supply, such circuit to power network safety operation.
Other advantages, target and feature of the utility model will be explained in the following description to a certain extent
It states, and to a certain extent, based on will be apparent to those skilled in the art to investigating hereafter, or
Person can be instructed from the practice of the utility model.The target of the utility model and other advantages can be said by following
Bright book is realized and is obtained.
Description of the drawings
In order to keep the purpose of this utility model, technical solution and advantage clearer, below in conjunction with attached drawing to this practicality
It is novel to be described in further detail, wherein：
FIG. 1 is a schematic structural view of the utility model.
Specific implementation mode
Hereinafter reference will be made to the drawings, and the preferred embodiment of the utility model is described in detail.It should be appreciated that preferably real
Example is applied only for illustrating the utility model, rather than in order to limit the scope of protection of the utility model.
As shown in Figure 1, SF6 breaker control circuits, including breaker control circuit and motor energy storage control loop, open circuit
For device control loop with motor energy storage control loop respectively by individual power supply power supply, motor energy storage control loop includes being in parallel
Electric motor loop and motor control and delay protection circuit, motor energy storage control loop is by electric motor loop power supply power supply.
Electric motor loop includes two energy storage intermediate relay normally open contact ZLC being in series and is arranged between two normally open contacts
Ammeter M.
Motor controls and delay protection circuit includes the first circuit being in parallel and second servo loop, and the first circuit includes mutually going here and there
Energy storage intermediate relay coil ZLC, the out-of-date failure protector normally closed interlock ZJ of motor of connection and a normally-closed contact CK1, it is normally closed to touch
Point CK1 is controlled by breaker control circuit, and second circuit includes the out-of-date failure protector coil ZJ of motor, the out-of-date failure of motor
It is in series with the energy storage intermediate relay normally open contact ZLC being in parallel after protector coil and the out-of-date failure protector of motor is normally opened tactile
Head ZJ.
The utility model controls motor and delay protection circuit is detached from breaker control circuit, accesses electric motor loop
In, realize that motor control and delay protection ring current are detached with breaker control power supply.After circuit is engineered, in motor energy storage
In the process, if the out-of-date failure protector ZJ actions of motor, disconnect energy storage intermediate relay ZLC, to disconnect motor tank circuit.
The out-of-date failure protector ZJ of motor is still always maintained at action by self-sustaining contact communication circuit makes breaker energy storage circuit one
It is straight to disconnect.But it only needs to disconnect electric motor loop power supply at this time and again to upper, out-of-date failure protector ZJ will be returned, breaker
Tank circuit is linked up again, controls power supply without cut-off breaker, control loop can work normally.
The utility model, SF6 breakers are Jiangsu Rugao high-voltage electrical apparatus Co., Ltd LW36-126 type SF6 breakers.
Finally illustrate, above example is merely intended for describing the technical solutions of the present application, but not for limiting the present application, although ginseng
The utility model is described in detail according to preferred embodiment, it will be understood by those of ordinary skill in the art that, it can be to this
The technical solution of utility model is modified or replaced equivalently, should all without departing from the objective and range of the technical program
Cover in the right of the utility model.
Claims (3)
1.SF6 breaker control circuits, it is characterised in that：It is described including breaker control circuit and motor energy storage control loop
With motor energy storage control loop respectively by individual power supply power supply, the motor energy storage control loop includes breaker control circuit
Electric motor loop and the motor control being in parallel and delay protection circuit, the motor energy storage control loop are supplied by electric motor loop power supply
Electricity.
2. SF6 breaker control circuits according to claim 1, it is characterised in that：The electric motor loop includes being in series
Two energy storage intermediate relay normally open contacts and the ammeter that is arranged between two normally open contacts.
3. SF6 breaker control circuits according to claim 1 or 2, it is characterised in that：The motor control and delay are protected
It includes the first circuit being in parallel and second servo loop to protect circuit, and first circuit includes the energy storage intermediate relay line being in series
Circle, the out-of-date failure protector normally closed interlock of motor and a normally-closed contact, the normally-closed contact are controlled by breaker control circuit, institute
It includes the out-of-date failure protector coil of motor to state second servo loop, is in series with and is in parallel after the out-of-date failure protector coil of motor
Energy storage intermediate relay normally open contact and the out-of-date failure protector normally open contact of motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721505826.9U CN207765383U (en) | 2017-11-13 | 2017-11-13 | SF6 breaker control circuits |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721505826.9U CN207765383U (en) | 2017-11-13 | 2017-11-13 | SF6 breaker control circuits |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207765383U true CN207765383U (en) | 2018-08-24 |
Family
ID=63188640
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721505826.9U Active CN207765383U (en) | 2017-11-13 | 2017-11-13 | SF6 breaker control circuits |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207765383U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110988665A (en) * | 2019-12-01 | 2020-04-10 | 国网辽宁省电力有限公司锦州供电公司 | Abnormal alarm method for closing function of spring type circuit breaker |
-
2017
- 2017-11-13 CN CN201721505826.9U patent/CN207765383U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110988665A (en) * | 2019-12-01 | 2020-04-10 | 国网辽宁省电力有限公司锦州供电公司 | Abnormal alarm method for closing function of spring type circuit breaker |
| CN110988665B (en) * | 2019-12-01 | 2022-02-22 | 国网辽宁省电力有限公司锦州供电公司 | Abnormal alarm method for closing function of spring type circuit breaker |
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| GR01 | Patent grant |