CN106451327A - Circuit breaker - Google Patents
Circuit breaker Download PDFInfo
- Publication number
- CN106451327A CN106451327A CN201611062014.1A CN201611062014A CN106451327A CN 106451327 A CN106451327 A CN 106451327A CN 201611062014 A CN201611062014 A CN 201611062014A CN 106451327 A CN106451327 A CN 106451327A
- Authority
- CN
- China
- Prior art keywords
- circuit
- current
- voltage
- processor
- phase
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H1/00—Details of emergency protective circuit arrangements
- H02H1/06—Arrangements for supplying operative power
-
- 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
Landscapes
- Emergency Protection Circuit Devices (AREA)
Abstract
The invention relates to a circuit breaker. The circuit breaker comprises a processor, a power circuit, a three-phase voltage sampling circuit, a three-phase current sampling circuit and a tripping device. Output ends of the three-phase voltage sampling circuit, the three-phase current sampling circuit and the power circuit are respectively connected with an input end of the processor, and an output end of the processor is connected with the tripping device. The three-phase voltage sampling circuit and the three-phase current sampling circuit are provided with a voltage electronic switch and a current electronic switch respectively, and the voltage electronic switch and the current electronic switch are both connected with the power circuit. The current sampling circuit and the voltage sampling circuit are provided with switch circuits respectively and connected with the power circuit through the switch circuits, and when one of the current sampling circuit and the voltage sampling circuit is in power failure, power supply can be realized through the other sampling circuit, so that stability in power supply is guaranteed.
Description
Technical field
The present invention relates to a kind of chopper.
Background technology
The circuit of chopper is by the power voltage supply between triple line and zero line, once losing electricity in the phase line of chopper
Pressure will lose power supply as short circuit, the circuit of residual current action breaker, leads to circuit cisco unity malfunction, the remaining electricity of impact
The stability in use of stream action breaker, and existing chopper does not possess residual current protecting function, when circuit leaks electricity
Can not play a protective role.
Content of the invention
For above-mentioned reasons, it is an object of the invention to provide one kind can be powered by electric current by power voltage supply again
The chopper with residual current protecting function.
For achieving the above object, the present invention adopts a kind of chopper, including processor, power circuit, three-phase voltage sampling
Circuit, three-phase current sample circuit, trip gear, three-phase voltage sample circuit, three-phase current sample circuit, power circuit defeated
Go out end to be connected with the input of processor respectively, the outfan of processor is connected with trip gear, described three-phase voltage sampling electricity
Voltage electronic switch and current electrical switch, voltage electronic switch and electric current are respectively arranged with road and three-phase current sample circuit
Electrical switch is all connected with power circuit.
The present invention is further arranged to be connected with power supply capacitor on described voltage electronic switch.
The present invention is further arranged to described chopper and also includes residual current sample circuit, residual current sample circuit with
Processor connects.
The present invention is further arranged to described chopper and also includes pre-payment module, and pre-payment module is connected with processor.
The present invention is further arranged to described chopper and also includes fire-fighting signal input module and fire-fighting signal feedback module,
The outfan of fire-fighting signal input module is connected with the input of processor, the input of fire-fighting signal feedback module and processor
Outfan connect.
The present invention is further arranged to described chopper and also includes telecommunication circuit, and telecommunication circuit is connected with processor.
The present invention is further arranged to described three-phase voltage sample circuit and includes supply transformer, voltage rectifying circuit, electricity
Pressure sample circuit, voltage electronic switch, power supply capacitor, supply transformer is connected with voltage rectifying circuit, voltage rectifying circuit and
Voltage sampling circuit connects, and voltage sampling circuit is connected with processor, and voltage rectifying circuit is connected with voltage electronic switch, voltage
Electrical switch is connected with power circuit, and power supply capacitor is connected between electrical switch and power circuit.
The present invention is further arranged to described three-phase current sample circuit and includes threephase current transformer, current rectification electricity
Road, current sampling circuit, current electrical switch, threephase current transformer is connected with current rectification circuit, current rectification circuit with
Current sampling circuit connects, and current rectification circuit is connected with current electrical switch, and current electrical switch is connected with power circuit.
The invention has the beneficial effects as follows being respectively provided with on-off circuit on current sampling circuit and voltage sample circuit, by switch
Circuit is connected with power circuit, can pass through another one when one of current sampling circuit and voltage sample circuit do not have electricity
Sample circuit is powered the stability it is ensured that powering.Chopper has residual current sample circuit, by the remaining electricity of detection
Stream is realizing earth leakage protective.Chopper also has the functions such as pre-payment, fire-fighting control simultaneously.
Brief description
Fig. 1 is the circuit theory frame of the embodiment of the present invention.
Fig. 2 is the sampling power circuit principle figure of the embodiment of the present invention.
Fig. 3 is the circuit diagram of the three-phase voltage sample circuit of the embodiment of the present invention.
Fig. 4 is the circuit diagram of the three-phase current sample circuit of the embodiment of the present invention.
Specific embodiment
As shown in figure 1, the specific embodiment of the present invention is a kind of chopper, including processor, power circuit, three-phase voltage
Sample circuit, three-phase current sample circuit, trip gear, residual current sample circuit, pre-payment module, fire-fighting signal input mould
Block, fire-fighting signal feedback module and telecommunication circuit, three-phase voltage sample circuit, three-phase current sample circuit, power circuit defeated
Go out end is connected with the input of processor respectively, the outfan of processor is connected with trip gear, three-phase voltage sample circuit with
Voltage electronic switch and current electrical switch, voltage electronic switch and current electrons are respectively arranged with three-phase current sample circuit
Switch is all connected with power circuit, and voltage electronic switchs and is connected with power supply capacitor, the outfan of residual current sample circuit and
The input of processor connects, and the outfan of pre-payment module is connected with the input of processor, fire-fighting signal input module
Outfan is connected with the input of processor, and the input of fire-fighting signal feedback module is connected with the outfan of processor, communication
Circuit is interconnected with processor.
As shown in Figure 2 and Figure 3, three-phase voltage sample circuit include supply transformer P1, voltage rectifying circuit (D2, D4,
D7), voltage sampling circuit, voltage electronic switch, power supply capacitor C7, supply transformer is with voltage rectifying circuit (D2, D4, D7) even
Connect, voltage rectifying circuit (D2, D4, D7) is connected with voltage sampling circuit, and voltage sampling circuit is connected with processor, voltage commutation
Circuit (D2, D4, D7) is connected with voltage electronic switch, and voltage electronic switch is connected with power circuit, and power supply capacitor C7 is connected to
Between electrical switch and power circuit；
As shown in Figure 2, Figure 4 shows, three-phase current sample circuit include threephase current transformer P7, current rectification circuit (D17,
D18, D19), current sampling circuit, current electrical switch, threephase current transformer and current rectification circuit (D17, D18, D19)
Connect, current rectification circuit (D17, D18, D19) is connected with current sampling circuit, current rectification circuit (D17, D18, D19) and
Current electrical switch connects, and current electrical switch is connected with power circuit.
Claims (8)
1. a kind of chopper, including processor, power circuit, three-phase voltage sample circuit, three-phase current sample circuit, dress of threading off
Put, three-phase voltage sample circuit, three-phase current sample circuit, the outfan of power circuit are connected with the input of processor respectively
Connect, the outfan of processor be connected with trip gear it is characterised in that：Described three-phase voltage sample circuit and three-phase current sampling
Voltage electronic switch and current electrical switch are respectively arranged with circuit, voltage electronic switchs and power supply equal with current electrical switch
Circuit connects.
2. chopper according to claim 1 it is characterised in that：It is connected with power supply capacitor on described voltage electronic switch.
3. chopper according to claim 1 and 2 it is characterised in that：Described chopper also includes residual current sampling electricity
Road, residual current sample circuit is connected with processor.
4. chopper according to claim 1 and 2 it is characterised in that：Described chopper also includes pre-payment module, prepayment
Take module to be connected with processor.
5. chopper according to claim 1 and 2 it is characterised in that：Described chopper also includes fire-fighting signal input mould
Block and fire-fighting signal feedback module, the outfan of fire-fighting signal input module is connected with the input of processor, and fire-fighting signal is anti-
The input of feedback module is connected with the outfan of processor.
6. chopper according to claim 1 and 2 it is characterised in that：Described chopper also includes telecommunication circuit, communication electricity
Road is connected with processor.
7. chopper according to claim 2 it is characterised in that：Described three-phase voltage sample circuit includes transformation of powering
Device, voltage rectifying circuit, voltage sampling circuit, voltage electronic switch, power supply capacitor, supply transformer is with voltage rectifying circuit even
Connect, voltage rectifying circuit is connected with voltage sampling circuit, voltage sampling circuit is connected with processor, voltage rectifying circuit and voltage
Electrical switch connects, and voltage electronic switch is connected with power circuit, and power supply capacitor is connected between electrical switch and power circuit.
8. chopper according to claim 1 it is characterised in that：It is mutual that described three-phase current sample circuit includes three-phase current
Sensor, current rectification circuit, current sampling circuit, current electrical switch, threephase current transformer is connected with current rectification circuit,
Current rectification circuit is connected with current sampling circuit, and current rectification circuit is connected with current electrical switch, current electrical switch with
Power circuit connects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611062014.1A CN106451327A (en) | 2016-11-28 | 2016-11-28 | Circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611062014.1A CN106451327A (en) | 2016-11-28 | 2016-11-28 | Circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106451327A true CN106451327A (en) | 2017-02-22 |
Family
ID=58219053
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611062014.1A Pending CN106451327A (en) | 2016-11-28 | 2016-11-28 | Circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106451327A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107145119A (en) * | 2017-04-20 | 2017-09-08 | 海格科技股份有限公司 | electronic switch with temperature control |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5959818A (en) * | 1997-06-30 | 1999-09-28 | Eaton Corporation | Method and apparatus for self-powered three-phase sensing to determine true RMS current values with separate burdens for each current transformer |
| CN2472384Y (en) * | 2001-03-03 | 2002-01-16 | 林李杰 | Intellectual leakage breaker |
| CN201378730Y (en) * | 2008-12-12 | 2010-01-06 | 河南省电力公司新乡供电公司 | Power circuit breaker protective circuit |
| CN103325627A (en) * | 2012-03-20 | 2013-09-25 | 深圳市金博联电力技术有限公司 | Fast and intelligent 10KV pole-mounted breaker |
| CN103840423A (en) * | 2014-03-03 | 2014-06-04 | 长城电器集团有限公司 | Residual current relay controller circuit |
| CN104319161A (en) * | 2014-10-10 | 2015-01-28 | 珠海许继电气有限公司 | Self-powered outdoor pole-mounted intelligent circuit breaker complete equipment |
-
2016
- 2016-11-28 CN CN201611062014.1A patent/CN106451327A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5959818A (en) * | 1997-06-30 | 1999-09-28 | Eaton Corporation | Method and apparatus for self-powered three-phase sensing to determine true RMS current values with separate burdens for each current transformer |
| CN2472384Y (en) * | 2001-03-03 | 2002-01-16 | 林李杰 | Intellectual leakage breaker |
| CN201378730Y (en) * | 2008-12-12 | 2010-01-06 | 河南省电力公司新乡供电公司 | Power circuit breaker protective circuit |
| CN103325627A (en) * | 2012-03-20 | 2013-09-25 | 深圳市金博联电力技术有限公司 | Fast and intelligent 10KV pole-mounted breaker |
| CN103840423A (en) * | 2014-03-03 | 2014-06-04 | 长城电器集团有限公司 | Residual current relay controller circuit |
| CN104319161A (en) * | 2014-10-10 | 2015-01-28 | 珠海许继电气有限公司 | Self-powered outdoor pole-mounted intelligent circuit breaker complete equipment |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107145119A (en) * | 2017-04-20 | 2017-09-08 | 海格科技股份有限公司 | electronic switch with temperature control |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170222 |
|
| WD01 | Invention patent application deemed withdrawn after publication |