CN205881742U - A control circuit for flexible divide -shut brake of high voltage switch - Google Patents
A control circuit for flexible divide -shut brake of high voltage switch Download PDFInfo
- Publication number
- CN205881742U CN205881742U CN201620673107.7U CN201620673107U CN205881742U CN 205881742 U CN205881742 U CN 205881742U CN 201620673107 U CN201620673107 U CN 201620673107U CN 205881742 U CN205881742 U CN 205881742U
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- resistance
- voltage switch
- voltage
- audion
- stroke
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- Braking Elements And Transmission Devices (AREA)
Abstract
The utility model discloses a control circuit for flexible divide -shut brake of high voltage switch, carry out obs core control through CPU, through the nature promotion triode promote that the drive makes the coil electrification with high -power linear drive triode, the iron core moves to the combined floodgate direction, drive the high -voltage switch moving contact through high voltage insulation spare, the motion of high -voltage switch moving contact realizes separating brake and combined floodgate, in the high -voltage switch moving contact motion process that closes a floodgate, through high voltage insulation spare and iron core sensing to resistance -type stroke sensor, resistance -type stroke sensor changes the mechanical parameter of high -voltage switch moving contact motion into electric analog quantity, be transformed into the digital quantity through the AD device, read and judge the flexible quality of the motion of closing a floodgate then prescribe a limit to the output resistances signal through control by CPU, realize that the high -voltage switch moving contact is flexible with the high quality of high -voltage switch static contact combined floodgate contact. The utility model discloses simple structure, operation be reliable, safeguard convenient, sexual valence relative altitude.
Description
Technical field
This utility model relates to the control circuit of a kind of divide-shut brake, particularly a kind of for flexible deciliter of high-voltage AC switches
The control circuit of lock.
Background technology
High-voltage AC switches is used for connection and the partition of high-voltage fence, is the key equipment in high-voltage fence, affects high pressure
The safety of electrical network, economical operation, concerning national economy.High-voltage AC switches is by contact component and insulating element, functional unit, biography
Dynamic component, automation component and body etc. form.Electrical network connect with cut off by contact component point, close a floodgate motion realize, because of
This contact component point, motion of closing a floodgate be the key technology of high-voltage AC switches.
Owing to the contact motion dividing, closing a floodgate of high-voltage AC switches has between stroke, the excess of stroke, speed, acceleration, dynamic/static contact
Many requirements such as initial pressure.The contact running control circuit dividing, closing a floodgate of existing high-voltage AC switches is open ring type, institute
Not to be well positioned to meet these requirements, produce closing rebound, separating brake bounce-back etc., the most then electrical network and load are produced
Raw damaging is impacted and has a strong impact on the service life of switch itself.
Lack a kind of simple in construction, reliable, easy to maintenance, high the having without combined floodgate bullet of cost performance in the market
The high-voltage AC switches of the flexible divide-shut brake characteristic that jumping, separating brake rebound.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of simple in construction, reliable for high-voltage alternating
The control circuit of switch flexible's divide-shut brake.
For solving above-mentioned technical problem, this utility model be the technical scheme is that
A kind of control circuit for high-voltage AC switches flexibility divide-shut brake, it is characterised in that: comprise CPU, CPU respectively with
Energization control signal and separating brake control signal connect, and blood pressure lowering current-limiting resistance R8 one end connects power vd D, and current-limiting resistance R8 is another in blood pressure lowering
One end and CPU, A/D device, linear promote the colelctor electrode of audion D1, the positive pole of filtering capacitance of voltage regulation C3, stabilivolt D5 negative pole,
Coil L1 one end, coil L2 one end and power vd D connect, the base stage of the linear audion D1 of promotion with control to limit resistance R4, OK
Journey sampling differential capacitance C1 and stroke sampling ratio resistance R2 one end connect, and control to limit the resistance R4 other end and are connected with CPU, OK
The other end of journey sampling differential capacitance C1 and stroke sampling ratio resistance R2 is connected, linearly with stroke sampling ratio resistance R1 one end
The emitter stage promoting audion D1 is connected with the base stage of shunt resistance R6 one end, high-power Linear Driving audion D3, shunting electricity
Resistance R6 other end ground connection, the colelctor electrode of high-power Linear Driving audion D3 is connected with the coil L1 other end, high-power linearly drives
The dynamic emitter stage of audion D3, the negative pole of filtering capacitance of voltage regulation C3, stabilivolt D5 plus earth, the linear base promoting audion D2
Pole is connected with controlling restriction resistance R5, stroke sampling differential capacitance C2 and stroke sampling ratio resistance R3 one end, controls to limit electricity
The resistance R5 other end is connected with CPU, and the other end of stroke sampling differential capacitance C2 and stroke sampling ratio resistance R3 samples with stroke
Proportion resistor R1 one end connects, the linear emitter stage promoting audion D2 and shunt resistance R7 one end, high-power Linear Driving three
The base stage of pole pipe D4 connects, shunt resistance R7 other end ground connection, the colelctor electrode of high-power Linear Driving audion D4 and coil L2
The other end connects, and the grounded emitter of high-power Linear Driving audion D4, A/D device input is connected with CPU, A/D device
Outfan is connected with the stroke sampling ratio resistance R1 other end and resistance-type stroke sensor RL one end, resistance-type stroke sensor
The RL other end is connected with iron core.
Further, also comprising electromagnetic operating mechanism, it is exhausted that electromagnetic operating mechanism comprises coil L1, coil L2, iron core, high pressure
Edge part, movable contact of high-voltage switch and static contact of high-voltage switch, coil L1 and coil L2 are set on iron core, movable contact of high-voltage switch
Being fixed on iron core one end and high-pressure insulator is arranged between iron core and movable contact of high-voltage switch and insulate, high-voltage switch gear is quiet
Contact correspondence movable contact of high-voltage switch is arranged on the upside of movable contact of high-voltage switch.
Further, described iron core grounding.
Further, the earth terminal ground connection of described CPU and A/D device.
This utility model compared with prior art, has the following advantages and effect: simple in construction, reliable, maintenance side
Just, the divide-shut brake for high-voltage AC switches that cost performance is high control output circuit, make high-voltage AC switches have flexible deciliter
Lock characteristic, and making process without spring, separating brake process without bounce-back, in actual use reduce divide-shut brake to electrical network, load and open
The damageability impact of pass itself.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of a kind of control circuit for high-voltage AC switches flexibility divide-shut brake of the present utility model.
Detailed description of the invention
The utility model is described in further detail below in conjunction with the accompanying drawings and by embodiment, and following example are right
Explanation of the present utility model and this utility model is not limited to following example.
As it can be seen, a kind of control circuit for high-voltage AC switches flexibility divide-shut brake of the present utility model, comprise
CPU1, CPU1 are connected with energization control signal and separating brake control signal respectively, and blood pressure lowering current-limiting resistance R8 one end connects power vd D,
The blood pressure lowering current-limiting resistance R8 other end and CPU, A/D device 2, linear promote the colelctor electrode of audion D1, filtering capacitance of voltage regulation C3
Positive pole, stabilivolt D5 negative pole, coil L1 one end, coil L2 one end and power vd D connect, the linear base stage promoting audion D1 with
Control to limit resistance R4, stroke sampling differential capacitance C1 and stroke sampling ratio resistance R2 one end to connect, control to limit resistance R4
The other end is connected with CPU, stroke sampling differential capacitance C1 and the other end of stroke sampling ratio resistance R2 and stroke sampling ratio
Resistance R1 one end connects, the linear emitter stage promoting audion D1 and shunt resistance R6 one end, high-power Linear Driving audion
The base stage of D3 connects, shunt resistance R6 other end ground connection, the colelctor electrode of high-power Linear Driving audion D3 and coil L1 another
End connects, the emitter stage of high-power Linear Driving audion D3, the negative pole of filtering capacitance of voltage regulation C3, stabilivolt D5 plus earth,
The base stage of the linear audion D2 of promotion and control limit resistance R5, stroke sampling differential capacitance C2 and stroke sampling ratio resistance R3
One end connects, and controls to limit the resistance R5 other end and is connected with CPU, stroke sampling differential capacitance C2 and stroke sampling ratio resistance R3
The other end be connected with stroke sampling ratio resistance R1 one end, the linear emitter stage promoting audion D2 and shunt resistance R7 mono-
End, the base stage of high-power Linear Driving audion D4 connect, shunt resistance R7 other end ground connection, high-power Linear Driving audion
The colelctor electrode of D4 is connected with the coil L2 other end, the grounded emitter of high-power Linear Driving audion D4, A/D device input
Being connected with CPU, A/D device output end connects with the stroke sampling ratio resistance R1 other end and resistance-type stroke sensor RL one end
Connecing, the resistance-type stroke sensor RL other end is connected with iron core.
Electromagnetic operating mechanism comprises coil L1, coil L2, iron core 3, high-pressure insulator 4, movable contact of high-voltage switch 5 and high pressure
Switch static contact 6, coil L1 and coil L2 are set on iron core 3, and movable contact of high-voltage switch 5 is fixed on iron core 3 one end and height
Pressure insulating part 4 is arranged between iron core 3 and movable contact of high-voltage switch 5 and insulate, the corresponding high-voltage switch gear of static contact of high-voltage switch 6
Moving contact 5 is arranged on the upside of movable contact of high-voltage switch 5.Iron core 3 lower end ground connection.The earth terminal ground connection of CPU1 and A/D device 2,
Two signal input parts of CPU1 connect energization control signal and separating brake control signal, and two control signal outfans of CPU1 divide
Do not connect R4, R5.
The control method of a kind of control circuit for high-voltage AC switches flexibility divide-shut brake, comprises flexible shutting-brake control side
Method and flexible separating brake control method,
Flexible shutting-brake control method is, after CPU receives energization control signal, by controlling restriction resistance R4 impulsing formula
Switching signal, linear promotion audion D1 promotes and high-power Linear Driving audion D3 drives and makes coil L1 charged, iron core
Moving to combined floodgate direction, drive movable contact of high-voltage switch through high-pressure insulator, movable contact of high-voltage switch moves to and high-voltage switch gear
Static contact contact is combined floodgate；In the movable contact of high-voltage switch motor process closed a floodgate, sensed by high-pressure insulator and iron core
To resistance-type stroke sensor RL, resistance-type stroke sensor RL, the mechanical parameter that movable contact of high-voltage switch moves is changed into
Electric simulation amount, becomes digital quantity through A/D devices transition, CPU read and judge to close a floodgate the flexible quality moved then through controlling
Limit resistance R4 and regulate output signal, it is achieved the high-quality that movable contact of high-voltage switch contacts with static contact of high-voltage switch combined floodgate is soft
Property；The motion electric analog quantity of the movable contact of high-voltage switch of resistance-type stroke sensor RL samples differential capacitance C1 differential through stroke
After be directly fed back to linearly promote audion D1, accelerate the speed that automatically controls；Stroke sampling ratio resistance R1, stroke sampling rate
Example resistance R2 constitutes feedback proportional circuit, is improved by regulation and controls effect, stabilivolt D5, filtering capacitance of voltage regulation C3, blood pressure lowering limit
What leakage resistance R8 constituted stable low-voltage automatically controls partial power circuit, separates with divide-shut brake actuating power vd D；
Flexible separating brake control method is, after CPU receives separating brake control signal, by controlling restriction resistance R5 impulsing formula
Sub-gate signal, linear promotion audion D2 promotes and high-power Linear Driving audion D4 drives and makes coil L2 charged, iron core
Moving to separating brake direction, drive movable contact of high-voltage switch through high-pressure insulator, movable contact of high-voltage switch moves to and high-voltage switch gear
Static contact is kept completely separate and is separating brake；In the movable contact of high-voltage switch motor process closed a floodgate, by high-pressure insulator and iron core
Sense resistance-type stroke sensor RL, resistance-type stroke sensor RL to be turned by the mechanical parameter that movable contact of high-voltage switch moves
Become electric simulation amount, become digital quantity through A/D devices transition, CPU read and judge the flexible quality then warp moved that closes a floodgate
Control to limit resistance R5 and regulate output signal, it is achieved the high-quality that movable contact of high-voltage switch contacts with static contact of high-voltage switch combined floodgate
Flexible；The motion electric analog quantity of the movable contact of high-voltage switch of resistance-type stroke sensor RL is micro-through stroke sampling differential capacitance C2
It is directly fed back to after Fen linearly promote audion D2, accelerates the speed automatically controlled；Stroke sampling ratio resistance R1, stroke sample
Proportion resistor R3 constitutes feedback proportional circuit, is improved by regulation and controls effect；Stabilivolt D5, filtering capacitance of voltage regulation C3, blood pressure lowering
What current-limiting resistance R8 constituted stable low-voltage automatically controls partial power circuit, separates with divide-shut brake actuating power vd D.
Above content described in this specification is only to this utility model example explanation.This utility model
Described specific embodiment can be made various amendment or supplements or use similar side by person of ordinary skill in the field
Formula substitutes, without departing from the content of this utility model description or surmount scope defined in the claims, and all should
Belong to protection domain of the present utility model.
Claims (4)
1. the control circuit for high-voltage AC switches flexibility divide-shut brake, it is characterised in that: comprise CPU, CPU respectively with conjunction
Lock control signal and separating brake control signal connect, blood pressure lowering current-limiting resistance R8 one end connect power vd D, blood pressure lowering current-limiting resistance R8 another
End and CPU, A/D device, linear the promotion colelctor electrode of audion D1, the positive pole of filtering capacitance of voltage regulation C3, stabilivolt D5 negative pole, line
Circle L1 one end, coil L2 one end and power vd D connect, and linearly promote the base stage of audion D1 and control to limit resistance R4, stroke
Sampling differential capacitance C1 and stroke sampling ratio resistance R2 one end connect, and control to limit the resistance R4 other end and are connected with CPU, stroke
The other end of sampling differential capacitance C1 and stroke sampling ratio resistance R2 is connected with stroke sampling ratio resistance R1 one end, linear push
The emitter stage of dynamic audion D1 is connected with the base stage of shunt resistance R6 one end, high-power Linear Driving audion D3, shunt resistance
R6 other end ground connection, the colelctor electrode of high-power Linear Driving audion D3 is connected with the coil L1 other end, high-power Linear Driving
The emitter stage of audion D3, the negative pole of filtering capacitance of voltage regulation C3, stabilivolt D5 plus earth, the linear base stage promoting audion D2
It is connected with controlling restriction resistance R5, stroke sampling differential capacitance C2 and stroke sampling ratio resistance R3 one end, controls to limit resistance
The R5 other end is connected with CPU, stroke sampling differential capacitance C2 and the other end of stroke sampling ratio resistance R3 and stroke sampling rate
Example resistance R1 one end connects, the linear emitter stage promoting audion D2 and shunt resistance R7 one end, high-power Linear Driving three pole
The base stage of pipe D4 connects, and shunt resistance R7 other end ground connection, the colelctor electrode of high-power Linear Driving audion D4 is another with coil L2
One end connects, and the grounded emitter of high-power Linear Driving audion D4, A/D device input is connected with CPU, and A/D device is defeated
Go out end to be connected with the stroke sampling ratio resistance R1 other end and resistance-type stroke sensor RL one end, resistance-type stroke sensor RL
The other end is connected with iron core.
2. according to a kind of control circuit for high-voltage AC switches flexibility divide-shut brake described in claim 1, it is characterised in that:
Also comprising electromagnetic operating mechanism, electromagnetic operating mechanism comprises coil L1, coil L2, iron core, high-pressure insulator, high-voltage switch gear is dynamic touches
Head and static contact of high-voltage switch, coil L1 and coil L2 are set on iron core, and movable contact of high-voltage switch is fixed on iron core one end also
And high-pressure insulator is arranged between iron core and movable contact of high-voltage switch and insulate, static contact of high-voltage switch correspondence high-voltage switch gear
Moving contact is arranged on the upside of movable contact of high-voltage switch.
3. according to a kind of control circuit for high-voltage AC switches flexibility divide-shut brake described in claim 2, it is characterised in that:
Described iron core grounding.
4. according to a kind of control circuit for high-voltage AC switches flexibility divide-shut brake described in claim 1, it is characterised in that:
The earth terminal ground connection of described CPU and A/D device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620673107.7U CN205881742U (en) | 2016-06-30 | 2016-06-30 | A control circuit for flexible divide -shut brake of high voltage switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620673107.7U CN205881742U (en) | 2016-06-30 | 2016-06-30 | A control circuit for flexible divide -shut brake of high voltage switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205881742U true CN205881742U (en) | 2017-01-11 |
Family
ID=57694289
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620673107.7U Withdrawn - After Issue CN205881742U (en) | 2016-06-30 | 2016-06-30 | A control circuit for flexible divide -shut brake of high voltage switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205881742U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105977075A (en) * | 2016-06-30 | 2016-09-28 | 国网浙江建德市供电公司 | Control circuit for flexile on-off of high-voltage alternating current switch and control method thereof |
-
2016
- 2016-06-30 CN CN201620673107.7U patent/CN205881742U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105977075A (en) * | 2016-06-30 | 2016-09-28 | 国网浙江建德市供电公司 | Control circuit for flexile on-off of high-voltage alternating current switch and control method thereof |
| CN105977075B (en) * | 2016-06-30 | 2018-12-14 | 国网浙江建德市供电公司 | A kind of control circuit and its control method for high-voltage AC switches flexibility divide-shut brake |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20170111 Effective date of abandoning: 20181214 |