CN105958437B - Realize the control circuit of breaker decompression tripping in external circuit - Google Patents
Realize the control circuit of breaker decompression tripping in external circuit Download PDFInfo
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- CN105958437B CN105958437B CN201610573899.5A CN201610573899A CN105958437B CN 105958437 B CN105958437 B CN 105958437B CN 201610573899 A CN201610573899 A CN 201610573899A CN 105958437 B CN105958437 B CN 105958437B
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- circuit
- breaker
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- control power
- external circuits
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/24—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to undervoltage or no-voltage
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- Electric Propulsion And Braking For Vehicles (AREA)
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The invention discloses the control circuits that the tripping of breaker decompression is realized in a kind of external circuit；The control circuit can realize that the tripping of high-voltage circuitbreaker decompression plays a protective role to circuit.The control circuit, including breaker direct current control mother, normally opened external circuits, breaker, intermediate relay, diode, capacitance, resistance and normally closed external circuits；The positive and negative polar curve of power supply is provided on the breaker direct current control mother, circuits below is provided between the positive and negative polar curve of power supply：The diode, the normally opened auxiliary contact of intermediate relay, capacitance, resistance series connection；Normally closed external circuits, circuit breaker trip coil connect to form circuit breaker trip circuit；The normally closed auxiliary contact of two couple of intermediate relay is connected with the auxiliary normal opened contact of capacitor, breaker, and is parallel to circuit breaker trip wire loop；Normally opened external circuits, intermediate relay series connection.Using the control circuit, design is simple, reliability is high, can be realized using common electric device, operability is strong.
Description
Technical field
The present invention relates to Power System and its Automation field, the tripping of breaker decompression is realized in especially a kind of external circuit
Control circuit.
Background technology
It is well known：Power is more than the High-power Synchronous Motor of 10MW, during installation, in order to play protection to motor
Effect is required to installation high-voltage circuitbreaker；And it is required that the high-voltage circuitbreaker of installation can realize control power supply decompression tripping work(
Can, so as to fulfill the protection to motor.Since existing partial high pressure breaker does not have decompression trip avoidance function, do not have
The high-voltage circuitbreaker of pressure testing trip avoidance function can not meet the installation requirement to High-power Synchronous Motor.
Invention content
The technical problems to be solved by the invention are to provide the control electricity that the tripping of breaker decompression is realized in a kind of external circuit
Road；The circuit can realize that the tripping of high-voltage circuitbreaker decompression plays a protective role to circuit.
The technical solution adopted by the present invention to solve the technical problems is：Realize the control of breaker decompression tripping in external circuit
Circuit processed, including the control of breaker direct current is female, normally opened external circuits, breaker, intermediate relay, diode, capacitance, resistance and
Normally closed external circuits；
Control power positive line and control power cathode line are connected on the breaker direct current control mother；The breaker
With first pair of normally opened contact and circuit breaker trip coil, the intermediate relay have first pair of normally-closed contact, second pair
Normally-closed contact and third are to normally opened contact；
The control power positive line, normally opened external circuits, circuit breaker trip coil, control power cathode line are sequentially connected in series
Form circuit breaker trip circuit；
The control power positive line, normally opened external circuits, first pair of normally opened contact, second pair of normally-closed contact, capacitance, the
A pair of of normally-closed contact, control power cathode line are sequentially connected in series；
It is described to control power positive line, diode, third to normally opened contact, capacitance, resistance, control power cathode line successively
Series connection；
The control power positive line, normally closed external circuits, intermediate relay, control power cathode line are sequentially connected in series.
Further, the breaker direct current control is female is set between control power positive line and control power cathode line
There is switch.
Preferably, the capacitance uses electrolytic capacitor.
The beneficial effects of the invention are as follows：Realize the control circuit packet of breaker decompression tripping in external circuit of the present invention
Include breaker direct current control female, normally opened external circuits, breaker, intermediate relay, diode, capacitance, resistance and normally closed external
Circuit；The normally opened auxiliary contact series connection of the capacitance, resistance, diode and intermediate relay；Two couple of the intermediate relay
Normally closed auxiliary contact is connected, and be parallel to circuit breaker trip wire loop with capacitor, breaker auxiliary normal opened contact.Pass through
To capacitor charging, when normally closed external circuits disconnect, capacitance electric discharge and the coil of breaker during normally closed external circuits normal work
Forming circuit so that coil is passed through direct current, so that breaker decompression trips, plays the protective effect to circuit；It improves
The safety of circuit avoids equipment and is damaged since acute variation occurs for voltage and current.It is of the present invention simultaneously outer
Portion circuit realizes that the control circuit design of breaker decompression tripping is simple, reliability is high, can be real using common electric device
Existing, operability is strong.
Description of the drawings
Fig. 1 is the schematic diagram of the control circuit that the tripping of breaker decompression is realized in external circuit in the embodiment of the present invention；
It is indicated in figure：The normally opened external circuits of 1-, 2- breakers, 21- circuit breaker trip coils, 22- first to normally opened contact,
3- intermediate relays, 31- first is to normally-closed contact, and 32- second is to normally-closed contact, and 33- thirds are to normally opened contact, 4- diodes,
5- capacitances, 6- resistance, the normally closed external circuits of 7-, 8- control power positive lines, 9- control power cathode lines, 10- switches, 11- break
Road device direct current control is female.
Specific embodiment
The present invention is further described with reference to the accompanying drawings and examples.
As shown in Figure 1, the control circuit of breaker decompression tripping is realized in external circuit of the present invention, including breaker
Direct current control mother 11, normally opened external circuits 1, breaker 2, intermediate relay 3, diode 4, capacitance 5, resistance 6 and normally closed external
Circuit 7；
Control power positive line 8 and control power cathode line 9 are connected on the breaker direct current control mother 11；It is described disconnected
Road device 2 has first pair of normally opened contact 22 and circuit breaker trip coil 21, and the intermediate relay 3 is normally closed tactile with first pair
31, second pairs of normally-closed contacts 32 of point and third are to normally opened contact 33；
It is described control power positive line 8, normally opened external circuits 1, circuit breaker trip coil 21, control power cathode line 9 according to
Secondary series connection forms circuit breaker trip circuit；
It is described control power positive line 8,1, first pair of normally opened external circuits, 22, second pairs of normally opened contact normally-closed contact 32,
5, first pairs of normally-closed contacts 31 of capacitance, control power cathode line 9 are sequentially connected in series；
The control power positive line 8, diode 4, third are to normally opened contact 33, capacitance 5, resistance 6, control power cathode
Line 9 is sequentially connected in series；
The control power positive line 8, normally closed external circuits 7, intermediate relay 3, control power cathode line 9 are gone here and there successively
Connection.
The normally opened external circuits 1 refer to that external circuits normal work is opened external circuits 1 and disconnected often, and external circuits occur
Exception is opened external circuits 1 and is closed often；The normally closed external circuits 7 refer to normally closed external electricity during normally closed external circuits normal work
Road 7 is closed, and normally closed external circuits 7 disconnect when external circuits occur abnormal.
Operation principle：
When the control loop of breaker 2 is normal, i.e., normally opened external circuits 1 work normally, normally closed 7 normal work of external circuits
Make, disconnected at this time by the circuit of normally opened external circuits 1, by the circuit closed of normally closed external circuits 7.
It is described control power positive line 8, normally opened external circuits 1, circuit breaker trip coil 21, control power cathode line 9 according to
Secondary series connection forms circuit breaker trip circuit；At this time since normally opened external circuits 1 disconnect, circuit breaker trip loop open circuit is broken
Road device 2 works normally.
Capacitor charging process：
Due to the control power positive line 8, normally closed external circuits 7, intermediate relay 3, control power cathode line 9 successively
Series connection；For normally closed external circuits 7 in normal work, normally closed external circuits 7 connect control power positive line 8 and intermediate relay 3,
Therefore intermediate relay 3 is powered.So that first pair of normally-closed contact of intermediate relay 3,31, second pairs of normally-closed contacts 32 are disconnected
It opens, the third of intermediate relay 3 is closed normally opened contact 33.
Since the control power positive line 8, diode 4, third are to normally opened contact 33, capacitance 5, resistance 6, control power supply
Negative line 9 is sequentially connected in series；The control power positive line 8,1, first pair of normally opened external circuits, 22, second pairs of normally opened contact are normally closed
Contact 32,5, first pairs of normally-closed contacts 31 of capacitance, control power cathode line 9 are sequentially connected in series；First pair of normally-closed contact 31, the simultaneously
Two pairs of normally-closed contacts 32 are off-state, and third is closed state to normally opened contact 33, controls power positive line 8, two poles at this time
Pipe 4, third form normally opened contact 33, capacitance 5, resistance 6, control power cathode line 9 in the circuit of connection, and capacitance 5 charges.
When the control loop of breaker 2 occurs abnormal, i.e., normally opened external circuits 1 or normally closed external circuits 7 occur different
Often, if exception, the connection of normally opened external circuits 1, if exception occur in normally closed external circuits 7, often occur in normally opened external circuits 1
Close the disconnection of external circuits 7.
When there is exception in normally opened external circuits 1, and normally closed external circuits 7 work normally：
Due to the control power positive line 8, normally opened external circuits 1, circuit breaker trip coil 21, control power cathode line
9 are sequentially connected in series to form circuit breaker trip circuit；At this time since normally opened external circuits 1 connect, circuit breaker trip circuit is formed
Power circuit, at this time circuit breaker trip coil 21 be powered, breaker 2 trips.
Breaker decompression trips：
When normally opened external circuits 1 work normally, and normally closed external circuits 7 occur abnormal：
Due to the control power positive line 8, normally closed external circuits 7, intermediate relay 3, control power cathode line 9 successively
Series connection, when normally closed external circuits 7 occur abnormal, normally closed external circuits 7 are off, at this time 3 dead electricity of intermediate relay；
So that first pair of normally-closed contact of intermediate relay 3,31, second pairs of normally-closed contacts 32 are closed, the intermediate relay 3
Third disconnects normally opened contact 33.
Since the control power positive line 8, diode 4, third are to normally opened contact 33, capacitance 5, resistance 6, control power supply
Negative line 9 is sequentially connected in series；The control power positive line 8,1, first pair of normally opened external circuits, 22, second pairs of normally opened contact are normally closed
Contact 32,5, first pairs of normally-closed contacts 31 of capacitance, control power cathode line 9 are sequentially connected in series；Control power positive line 8, normally opened outer
Circuit 1, circuit breaker trip coil 21, control power cathode line 9 is connect to be sequentially connected in series to form circuit breaker trip circuit；First pair simultaneously
31, second pairs of normally-closed contacts 32 of normally-closed contact are closed, and third disconnects normally opened contact 33, by the circuit of normally opened external circuits 1
It disconnects.
Therefore, first pair of normally opened contact, 22, second pairs of normally-closed contacts 32, capacitance 5, first pairs of normally-closed contacts 31, breakers
Breaking coil 21, which is connected, forms the discharge loop of capacitance 5；Capacitance 5 discharges, the circuit breaker trip coil that electric current passes through breaker 2
21, at this time the circuit breaker trip coil 21 of breaker 2 be powered, breaker 2 trips, so as to fulfill decompression trip.
The normally opened external circuits 1 can be introduced from the external circuit of installation motor during application, described normally closed
External circuits 2 are also introduced from the external circuit of installation motor.Thus can be according to the operating condition pair of motor by foregoing circuit
Motor implements automatic protection.
In conclusion external circuit of the present invention realizes that the control circuit of breaker decompression tripping is straight including breaker
Flow control mother 11, normally opened external circuits 1, breaker 2, intermediate relay 3, diode 4, capacitance 5, resistance 6 and normally closed external electricity
Road 7；The normally opened auxiliary contact series connection of the capacitance 5, resistance 6, diode 4 and intermediate relay 3；The intermediate relay 3
Two pairs of normally closed auxiliary contacts are connected with the auxiliary normal opened contact of capacitance 5, breaker 2, and are parallel to circuit breaker trip coil and are returned
Road.It charges when being worked normally by normally closed external circuits 7 to capacitance 5, when normally closed external circuits 7 disconnect, the electric discharge of capacitance 5 is with breaking
The coil forming circuit of road device 2 so that 5 coil of breaker is passed through direct current, so that breaker decompression trips；Play protection
The effect of circuit；The safety of circuit is improved, equipment is avoided and is damaged since acute variation occurs for voltage and current.Simultaneously
External circuit of the present invention realizes that the control circuit design of breaker decompression tripping is simple, reliability is high, using common
Electric device can be realized, and operability is strong.
For the ease of manually cutting off breaker direct current control mother 11, further, breaker direct current control mother 11 and control power supply
Switch 10 is provided between electrode line 8 and control power cathode line 9.By setting switch 10 so as in case of emergency
Realize artificial power-off.
A variety of capacitances may be used in the capacitance 5, in order to enable capacitance 5 has larger energy storage capacity, it is preferred that the electricity
Hold 5 and use electrolytic capacitor.
Claims (3)
1. the control circuit of breaker decompression tripping is realized in external circuit, it is characterised in that：Including breaker direct current control female (11),
Normally opened external circuits (1), breaker (2), intermediate relay (3), diode (4), capacitance (5), resistance (6) and normally closed external
Circuit (7)；
Control power positive line (8) and control power cathode line (9) are connected in the breaker direct current control female (11)；It is described
Breaker (2) has first pair of normally opened contact (22) and circuit breaker trip coil (21), and the intermediate relay (3) has the
A pair of of normally-closed contact (31), second pair of normally-closed contact (32) and third are to normally opened contact (33)；
The control power positive line (8), normally opened external circuits (1), circuit breaker trip coil (21), control power cathode line
(9) it is sequentially connected in series to form circuit breaker trip circuit；
The control power positive line (8), normally opened external circuits (1), first pair of normally opened contact (22), second pair of normally-closed contact
(32), capacitance (5), first pair of normally-closed contact (31), control power cathode line (9) are sequentially connected in series；
The control power positive line (8), diode (4), third are to normally opened contact (33), capacitance (5), resistance (6), control electricity
Source negative line (9) is sequentially connected in series；
The control power positive line (8), normally closed external circuits (7), intermediate relay (3), control power cathode line (9) are successively
Series connection.
2. the control circuit of breaker decompression tripping is realized in external circuit as described in claim 1, it is characterised in that：It is described disconnected
Switch (10) is provided between road device direct current control female (11) and control power positive line (8) and control power cathode line (9).
3. the control circuit of breaker decompression tripping is realized in external circuit as described in claim 1, it is characterised in that：The electricity
Hold (5) using electrolytic capacitor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610573899.5A CN105958437B (en) | 2016-07-20 | 2016-07-20 | Realize the control circuit of breaker decompression tripping in external circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610573899.5A CN105958437B (en) | 2016-07-20 | 2016-07-20 | Realize the control circuit of breaker decompression tripping in external circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105958437A CN105958437A (en) | 2016-09-21 |
| CN105958437B true CN105958437B (en) | 2018-06-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610573899.5A Active CN105958437B (en) | 2016-07-20 | 2016-07-20 | Realize the control circuit of breaker decompression tripping in external circuit |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107102260B (en) * | 2017-05-12 | 2019-09-27 | 国网天津市电力公司 | A kind of full-automatic switching pilot system of capacitor group |
| TWI690965B (en) * | 2018-11-30 | 2020-04-11 | 陳錫瑜 | Self-strength trip circuit breaker tripping loop improvement device |
| CN111969566B (en) * | 2019-05-20 | 2023-01-06 | 陈锡瑜 | Improved capacitor tripping device for high-voltage AC system |
| CN211744375U (en) * | 2020-01-21 | 2020-10-23 | 漳州市安麟机电研究所有限公司 | Fire prevention keeps off cigarette motor brake circuit |
| CN113889966A (en) * | 2021-09-30 | 2022-01-04 | 大唐河北发电有限公司马头热电分公司 | Alarm identification method for pull wire and deviation switch of coal conveying belt |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201478800U (en) * | 2009-08-25 | 2010-05-19 | 西部矿业股份有限公司 | Interlock protection device used for high-voltage system of high-voltage motor and low pressure system of thin oil station |
| CN201893294U (en) * | 2010-08-23 | 2011-07-06 | 宝山钢铁股份有限公司 | Decompression and retardation tripping device of AC (alternating current) contactor |
| CN202231402U (en) * | 2011-09-15 | 2012-05-23 | 安徽鑫龙电器股份有限公司 | Protection circuit of vacuum circuit breaker in under-voltage and no-voltage states |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010257660A (en) * | 2009-04-22 | 2010-11-11 | Toshiba Corp | Operation circuit of vacuum circuit breaker |
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2016
- 2016-07-20 CN CN201610573899.5A patent/CN105958437B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201478800U (en) * | 2009-08-25 | 2010-05-19 | 西部矿业股份有限公司 | Interlock protection device used for high-voltage system of high-voltage motor and low pressure system of thin oil station |
| CN201893294U (en) * | 2010-08-23 | 2011-07-06 | 宝山钢铁股份有限公司 | Decompression and retardation tripping device of AC (alternating current) contactor |
| CN202231402U (en) * | 2011-09-15 | 2012-05-23 | 安徽鑫龙电器股份有限公司 | Protection circuit of vacuum circuit breaker in under-voltage and no-voltage states |
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| CN105958437A (en) | 2016-09-21 |
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