CN106898999A - A kind of breaker protected with anti-virtual connection, earth leakage protective, fault electric arc - Google Patents
A kind of breaker protected with anti-virtual connection, earth leakage protective, fault electric arc Download PDFInfo
- Publication number
- CN106898999A CN106898999A CN201510976469.3A CN201510976469A CN106898999A CN 106898999 A CN106898999 A CN 106898999A CN 201510976469 A CN201510976469 A CN 201510976469A CN 106898999 A CN106898999 A CN 106898999A
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- CN
- China
- Prior art keywords
- circuit
- unit
- electric arc
- virtual connection
- diode
- 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.)
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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
- H02H1/0092—Details of emergency protective circuit arrangements concerning the data processing means, e.g. expert systems, neural networks
-
- 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
Abstract
The invention discloses a kind of breaker protected with anti-virtual connection, earth leakage protective, fault electric arc; including electric arc fault protection circuit and Anti-leakage circuit, the electric arc fault protection circuit includes signal gathering unit, microprocessor unit, electrical apparatus release unit and power circuit unit；Signal gathering unit, for gathering the current signal in electric circuit；Microprocessor unit, is connected with signal gathering unit, for receiving the signal that signal gathering unit is collected, judges with the presence or absence of fault electric arc in circuit, and according to judged result control electrical apparatus release whether disconnecting circuit；The leakage protection circuit, includes ZCT, controllable silicon, power circuit unit, filter circuit unit and tripping coil, and the both threads of wherein ZCT are connected to filter circuit unit.The beneficial effects of the invention are as follows：It is to be of great significance for taking precautions against the fire that electric arc and electric leakage trigger the invention provides a kind of breaker that can be prevented fault electric arc and leak electricity.
Description
Technical field
It is more particularly to a kind of to carry anti-virtual connection, earth leakage protective, event the present invention relates to breaker technical field
Hinder the breaker of arc protection.
Background technology
With the economic raising developed rapidly with people's lives, power consumption is also being continuously increased.Electrical Safety,
Including personal safety and prevent electric leakage or the excessively thermally-induced fire of arc fault, virtual connection, be increasingly subject to people weight
Depending on.
Electric arc is the continuous discharge phenomenon across certain dielectric between two electrodes, is often accompanied with electrode
Local volatilization.Typically electric arc is formation in the airspace between yin, yang the two poles of the earth.Arc center
Temperature is generally 5000 to 15000 degrees Celsius.The region that electric arc is present can produce ionization air pressure very high,
Causing what electric arc was confined Anywhere can all discharge hot gas and electrode substance particle.
Traditional domestic circuit failure protecting device can be in electric wiring heavy overload, or when being short-circuited
Disconnecting circuit is so as to play a protective role, although electric current when there is arc fault generally has point higher
Peak, but virtual value is possible and little, meanwhile, current earth leakage circuit-breaker is due in actual application
Due to a variety of causes, element heating is likely to result in, especially when the binding post position of connection load occurs void
When connecing, the overheat at binding post position most easily occurs, or even can damage element.Trigger the accidents such as fire.
The content of the invention
The purpose of the present invention is directed to technological deficiency present in prior art, and provide it is a kind of with anti-virtual connection,
Earth leakage protective, the breaker of fault electric arc protection.
To realize the purpose of the present invention, the technical solution adopted in the present invention is：One kind carries anti-virtual connection, leakage
Electric protection, the breaker of fault electric arc protection, the breaker include anti-virtual connection circuit, leakage protection circuit
And fault electric arc protection circuit, the anti-virtual connection circuit include the first divider resistance, thermistor, voltage stabilizing
Diode, triode and IGCT, wherein：Divider resistance and the anti-virtual connection circuit of access of thermistor series connection
Input and output end between；The anode and negative electrode of IGCT take over respectively anti-virtual connection circuit input and
Output end；The colelctor electrode of triode passes sequentially through first resistor and second resistance takes over the input of anti-virtual connection circuit
End, the emitter stage of triode passes sequentially through 3rd resistor and the 4th resistance takes over the output end of anti-virtual connection circuit,
The emitter stage of triode also passes sequentially through 3rd resistor and the 4th resistance accesses the gate pole of IGCT, the pole of voltage stabilizing two
The anode of pipe connects the base stage of triode, the negative electrode of voltage-regulator diode access the first divider resistance and thermistor it
Between；The fault electric arc protection circuit include signal gathering unit, microprocessor unit, electrical apparatus release unit with
And power circuit unit；Signal gathering unit, for gathering the current signal in electric circuit；Microprocessor
Unit, is connected with signal gathering unit, for receiving the signal that signal gathering unit is collected, judges line
In road whether there is fault electric arc, and according to judged result control electrical apparatus release whether disconnecting circuit；Micro- place
Reason device unit has arc fault detection module；Electrical apparatus release unit, is connected with microprocessor, for electric
There is disconnecting circuit during arc fault in circuit, so as to play a part of protection circuit；Power circuit unit,
For providing power supply for signal gathering unit, microprocessor unit and electrical apparatus release unit；The earth leakage protective
Circuit includes ZCT, controllable silicon, power circuit unit, filter circuit unit and tripping coil,
The both threads of wherein ZCT are connected to filter circuit unit.
Compared with prior art, the beneficial effects of the invention are as follows：Failure can be prevented the invention provides one kind
Electric arc and electric leakage, the breaker of anti-virtual connection overheat, are have ten for taking precautions against the fire that electric arc and electric leakage trigger
Divide important meaning.
Brief description of the drawings
Fig. 1 show anti-virtual connection electrical block diagram of the invention；
Fig. 2 show fault electric arc protection circuit structural representation of the present invention；
Fig. 3 show leakage protection circuit structural representation of the present invention；
In figure：The divider resistances of 1- first, 2- thermistors, 3- voltage-regulator diodes, 4- first resistors, 5-
Two resistance, 6- triodes, 7- 3rd resistors, the resistance of 8- the 4th, the resistance of 9- the 5th, 10- IGCTs, 11-
Filter circuit unit, 12- voltage doubling rectifing circuit units, 13- test buttons, 14- test button loop circuit lists
Unit, 15- tripping coils, the diodes of 16- first, 17- controllable silicons, the diodes of 18- second, the poles of 19- the three or two
Pipe, the electric capacity of 101- first, the electric capacity of 111- second, 121- first resistors, 131- ZCTs.
Specific embodiment
The present invention is described in further detail below in conjunction with the drawings and specific embodiments.It should be appreciated that herein
Described specific embodiment is only used to explain the present invention, is not intended to limit the present invention.
It should be noted that " connection " described herein and the word for expressing " connection ", such as
" being connected ", " connected " etc., it both may refer to a certain part and had been directly connected to another part, it is also possible to
A certain part is referred to be connected with another part by miscellaneous part.
Fig. 1, Fig. 2, Fig. 3, the present invention are a kind of with breaking that anti-virtual connection, earth leakage protective, fault electric arc are protected
Road device, it is characterised in that the breaker includes anti-virtual connection circuit, leakage protection circuit and fault electric arc
Protection circuit, the anti-virtual connection circuit includes the first divider resistance, thermistor, voltage-regulator diode, three poles
Pipe and IGCT, wherein：The input of divider resistance and the anti-virtual connection circuit of access of thermistor series connection and defeated
Go out between end；The anode and negative electrode of IGCT take over the input and output end of anti-virtual connection circuit respectively；Three poles
The colelctor electrode of pipe passes sequentially through first resistor and second resistance takes over the input of anti-virtual connection circuit, triode
Emitter stage passes sequentially through 3rd resistor and the 4th resistance takes over the output end of anti-virtual connection circuit, the transmitting of triode
Pole also passes sequentially through 3rd resistor and the 4th resistance accesses the gate pole of IGCT, and the anode of voltage-regulator diode connects three
The base stage of pole pipe, the negative electrode of voltage-regulator diode is accessed between the first divider resistance and thermistor；The failure
Arc protection circuit includes signal gathering unit, microprocessor unit, electrical apparatus release unit and power circuit list
Unit；Signal gathering unit, for gathering the current signal in electric circuit；Microprocessor unit, with signal
Collecting unit is connected, and for receiving the signal that signal gathering unit is collected, judges to whether there is in circuit
Fault electric arc, and according to judged result control electrical apparatus release whether disconnecting circuit；The microprocessor unit has
Arc fault detection module；Electrical apparatus release unit, is connected with microprocessor, for there is electricity in electric circuit
Disconnecting circuit during arc failure, so as to play a part of protection circuit；Power circuit unit, for being adopted for signal
Collection unit, microprocessor unit and electrical apparatus release unit provide power supply；The leakage protection circuit includes zero
Sequence transformer, controllable silicon, power circuit unit, filter circuit unit and tripping coil, wherein zero-sequence mutual inductance
The both threads of device are connected to filter circuit unit.
It should be noted that in anti-virtual connection protection circuit, when temperature is in normal range (NR), triode is not
Conducting, the IGCT being connected with transistor emitter is not turned on, circuit normal work；When temperature is increased to
During certain value, if with the thermistor of positive temperature coefficient, using the voltage of thermistor as triode base
The input of pole, if the thermistor of negative temperature coefficient is then exchanged with another divider resistance, such temperature liter
Height will be turned on to triode during certain value, cause turn on thyristors.
Wherein, the leakage protection circuit also includes voltage doubling rectifing circuit unit, the voltage doubling rectifing circuit
Unit includes the first electric capacity, the second electric capacity, the second diode, the 3rd diode, wherein the first electric capacity with
It is connected with the gate pole of controllable silicon after the negative pole connection of the second diode, the positive pole of the second diode and the three or two pole
The negative pole of pipe is commonly connected on filter circuit unit, and the electric capacity of electric capacity first and second is connected to filtering after being connected
On circuit unit, the positive pole of the second electric capacity and the 3rd diode is grounded after being connected, and the power circuit unit is
Halfwave rectifier, the positive pole of the first diode is connected on tripping coil, and the negative pole of the first diode is connected to can
Control on the anode of silicon.
Wherein, the leakage protection circuit also includes test button loop circuit unit, and the test button is returned
Road circuit unit includes test button and first resistor, and wherein test button one end is connected to tripping coil
On positive pole, the other end is connected in first resistor after passing through ZCT, the other end ground connection of first resistor,
Described the second diode, the 3rd diode are Schottky diode.
Wherein, the signal gathering unit includes current transformer and signal conditioning circuit；The signal condition
Circuit is connected with microprocessor unit, for being amplified to the current signal that current transformer is collected, being filtered
Ripple.
Wherein, the microprocessor unit has A/D modular converters, for collect current transformer
Current signal carries out analog-to-digital conversion.
Wherein, the electrical apparatus release unit includes electrical apparatus release and is arranged between electrical apparatus release and microprocessor unit
Electrical apparatus release drive circuit.
Wherein, also including test circuit, the test circuit and power circuit unit and microprocessor unit phase
Even, electrical apparatus release disconnecting circuit can be driven, for judging electric arc to microprocessor unit input test signal
Whether failure protecting device is working properly.
Wherein, described power circuit unit includes Switching Power Supply and voltage conversion chip；Its breaker in middle electricity
Source is connected with signal conditioning circuit and test circuit；Voltage conversion chip and Switching Power Supply and microprocessor list
Unit is connected.
The above is only the preferred embodiment of the present invention, it is noted that for the art
For those of ordinary skill, under the premise without departing from the principles of the invention, some improvement and profit can also be made
Decorations, these improvements and modifications also should be regarded as protection scope of the present invention.
Claims (8)
1. it is a kind of with anti-virtual connection, earth leakage protective, fault electric arc protection breaker, it is characterised in that institute
Stating breaker includes anti-virtual connection circuit, leakage protection circuit and fault electric arc protection circuit, the anti-virtual connection
Circuit includes the first divider resistance, thermistor, voltage-regulator diode, triode and IGCT, wherein：Point
Between piezoresistance and the input and output end of the anti-virtual connection circuit of access of thermistor series connection；The sun of IGCT
Pole and negative electrode take over the input and output end of anti-virtual connection circuit respectively；The colelctor electrode of triode passes sequentially through
One resistance and second resistance take over the input of anti-virtual connection circuit, and the emitter stage of triode passes sequentially through the 3rd electricity
Resistance and the 4th resistance take over the output end of anti-virtual connection circuit, and the emitter stage of triode also passes sequentially through 3rd resistor
With the gate pole that the 4th resistance accesses IGCT, the anode of voltage-regulator diode connects the base stage of triode, the pole of voltage stabilizing two
The negative electrode of pipe is accessed between the first divider resistance and thermistor；The fault electric arc protection circuit includes signal
Collecting unit, microprocessor unit, electrical apparatus release unit and power circuit unit；Signal gathering unit, uses
Current signal in electric circuit is gathered；Microprocessor unit, is connected with signal gathering unit, for connecing
The signal that signal gathering unit is collected is received, judges to whether there is fault electric arc in circuit, and according to judgement
Output control electrical apparatus release whether disconnecting circuit；The microprocessor unit has arc fault detection module；It is de-
Button device unit, is connected with microprocessor, for there is disconnecting circuit during arc fault in electric circuit, from
And play a part of protection circuit；Power circuit unit, for being signal gathering unit, microprocessor unit
And electrical apparatus release unit provides power supply；The leakage protection circuit includes ZCT, controllable silicon, electricity
Source circuit unit, filter circuit unit and tripping coil, the both threads of wherein ZCT are connected to filtering
Circuit unit.
2. a kind of open circuit protected with anti-virtual connection, earth leakage protective, fault electric arc according to claim
Device, it is characterised in that the leakage protection circuit also includes voltage doubling rectifing circuit unit, described times of repoussage
Current circuit unit includes the first electric capacity, the second electric capacity, the second diode, the 3rd diode, wherein first
Electric capacity is connected after being connected with the negative pole of the second diode with the gate pole of controllable silicon, the positive pole of the second diode and
The negative pole of three diodes is commonly connected on filter circuit unit, and the electric capacity of electric capacity first and second is connected after being connected
Onto filter circuit unit, the positive pole of the second electric capacity and the 3rd diode is grounded after being connected, the power circuit
Unit is halfwave rectifier, and the positive pole of the first diode is connected on tripping coil, and the negative pole of the first diode connects
It is connected on the anode of controllable silicon.
3. according to claim 2 a kind of with breaking that anti-virtual connection, earth leakage protective, fault electric arc are protected
Road device, it is characterised in that：The leakage protection circuit also includes test button loop circuit unit, the examination
Test button loop circuit unit and include test button and first resistor, wherein test button one end is connected to de-
On the positive pole of fastening wire circle, the other end through being connected in first resistor after ZCT, first resistor it is another
One end is grounded, and described the second diode, the 3rd diode are Schottky diode.
4. a kind of open circuit protected with anti-virtual connection, earth leakage protective, fault electric arc as claimed in claim 1
Device, it is characterised in that：The signal gathering unit includes current transformer and signal conditioning circuit；The letter
Number modulate circuit is connected with microprocessor unit, for being put to the current signal that current transformer is collected
Greatly, filter.
5. a kind of open circuit protected with anti-virtual connection, earth leakage protective, fault electric arc as claimed in claim 4
Device, it is characterised in that：The microprocessor unit has A/D modular converters, for current transformer to be adopted
The current signal for collecting carries out analog-to-digital conversion.
6. a kind of open circuit protected with anti-virtual connection, earth leakage protective, fault electric arc as claimed in claim 5
Device, it is characterised in that：The electrical apparatus release unit includes electrical apparatus release and is arranged on electrical apparatus release and microprocessor list
Electrical apparatus release drive circuit between unit.
7. a kind of open circuit protected with anti-virtual connection, earth leakage protective, fault electric arc as claimed in claim 6
Device, it is characterised in that：Also include test circuit, the test circuit and power circuit unit and microprocessor
Unit is connected, and electrical apparatus release disconnecting circuit can be driven, for sentencing to microprocessor unit input test signal
Whether disconnected protection device for arc faults is working properly.
8. a kind of open circuit protected with anti-virtual connection, earth leakage protective, fault electric arc as claimed in claim 7
Device, it is characterised in that：Described power circuit unit includes Switching Power Supply and voltage conversion chip；Wherein
Switching Power Supply is connected with signal conditioning circuit and test circuit；Voltage conversion chip and Switching Power Supply and micro- place
Reason device unit is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510976469.3A CN106898999A (en) | 2015-12-21 | 2015-12-21 | A kind of breaker protected with anti-virtual connection, earth leakage protective, fault electric arc |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510976469.3A CN106898999A (en) | 2015-12-21 | 2015-12-21 | A kind of breaker protected with anti-virtual connection, earth leakage protective, fault electric arc |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106898999A true CN106898999A (en) | 2017-06-27 |
Family
ID=59190783
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510976469.3A Pending CN106898999A (en) | 2015-12-21 | 2015-12-21 | A kind of breaker protected with anti-virtual connection, earth leakage protective, fault electric arc |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106898999A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107946150A (en) * | 2017-12-21 | 2018-04-20 | 永嘉县信诚科技服务有限公司 | A kind of leakage circuit breakers |
| CN107946151A (en) * | 2017-12-21 | 2018-04-20 | 永嘉县信诚科技服务有限公司 | Low-voltage leakage switchs |
-
2015
- 2015-12-21 CN CN201510976469.3A patent/CN106898999A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107946150A (en) * | 2017-12-21 | 2018-04-20 | 永嘉县信诚科技服务有限公司 | A kind of leakage circuit breakers |
| CN107946151A (en) * | 2017-12-21 | 2018-04-20 | 永嘉县信诚科技服务有限公司 | Low-voltage leakage switchs |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170627 |