CN107332201A - One kind is applied to three-phase circuit simulated leakage current generating circuit - Google Patents

One kind is applied to three-phase circuit simulated leakage current generating circuit Download PDF

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Publication number
CN107332201A
CN107332201A CN201710730211.4A CN201710730211A CN107332201A CN 107332201 A CN107332201 A CN 107332201A CN 201710730211 A CN201710730211 A CN 201710730211A CN 107332201 A CN107332201 A CN 107332201A
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China
Prior art keywords
diode
negative electrode
resistance
anode
piezo
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CN201710730211.4A
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Chinese (zh)
Inventor
杨奎
文杰
金珂存
阮嘉赟
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Zhejiang Xia Xing Electronic Technology Co Ltd
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Zhejiang Xia Xing Electronic Technology Co Ltd
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Priority to CN201710730211.4A priority Critical patent/CN107332201A/en
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    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02HEMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H3/00Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
    • H02H3/02Details
    • H02H3/04Details with warning or supervision in addition to disconnection, e.g. for indicating that protective apparatus has functioned
    • H02H3/044Checking correct functioning of protective arrangements, e.g. by simulating a fault

Abstract

It is applied to three-phase circuit simulated leakage current generating circuit, including rectified three-phase circuit, trip circuit, electric leakage signal process circuit, transformer, button process circuit, surge protection circuit the invention discloses one kind;Three-phase electricity is after rectified three-phase circuit rectification; handled again by button process circuit; the simulated leakage electric current of a pulsating direct current can be produced; this simulated leakage electric current exports induced signal by transformer after transformer and gives electric leakage signal process circuit; electrical apparatus release is driven to thread off through trip circuit again; three-phase residual current action breaker is disconnected, realizes and the aftercurrent action protecting function of residual current action breaker is detected.The circuit is used for residual current action breaker circuit; three-phase residual current action breaker can be stablized arbitrarily from two-phase or one mutually be used between zero line, reliably detect whether the aftercurrent action protecting function of residual current action breaker is normal.

Description

One kind is applied to three-phase circuit simulated leakage current generating circuit
Technical field
It is applied to three-phase circuit simulated leakage current generating circuit the present invention relates to one kind.
Background technology
Three-phase residual current action breaker on existing market, can all design a simulated leakage current generating circuit, For produce one simulation leakage current come detect residual current action breaker aftercurrent action protecting function whether Normally.But the simulated leakage current generating circuit of existing three-phase residual current action breaker be all by between the two phases or Person one mutually installs a circuit and a button between zero line wherein, when a button is depressed, and a mould is produced on resistance The ac leakage current of plan.As a result, when this mutually no power supply, or three-phase for connecing simulated leakage current generating circuit Residual current action breaker is taken as single-phase in use, will have the risk of simulated leakage current generating circuit failure, no The quality of product can normally be detected.
The content of the invention
It is applied to three-phase circuit simulated leakage current generating circuit it is an object of the invention to provide one kind, the circuit is used to remain Aftercurrent action breaker circuit, three-phase residual current action breaker arbitrarily mutually can be made from two-phase or one between zero line With simulated leakage current generating circuit function is normal, can stably, reliably detect the residue electricity of residual current action breaker Whether defencive function is made in flowing normal.
To achieve these goals, the technical solution adopted by the present invention is:
One kind is applied to three-phase circuit simulated leakage current generating circuit, including rectified three-phase circuit, trip circuit, electric leakage Signal processing circuit, transformer, button process circuit, surge protection circuit;Three-phase electricity after rectified three-phase circuit rectification, then Handled by button process circuit, the simulated leakage electric current of a pulsating direct current can be produced, this simulated leakage electric current warp Cross and induced signal is exported by transformer after transformer give electric leakage signal process circuit, then drive electrical apparatus release to thread off through trip circuit, Three-phase residual current action breaker is disconnected, realizes and the aftercurrent action protecting function of residual current action breaker is entered Row detection, surge protection circuit realizes the surge protection to whole circuit.
The present invention is further arranged to, and the rectified three-phase circuit is by diode D1, diode D2, diode D3, two Pole pipe D4, diode D5, diode D6, diode D7 compositions;Trip circuit is by tripping coil KA, resistance R2, diode D9, electricity Hinder R1, controllable silicon VT1, controllable silicon VT2 compositions;Button process circuit is made up of diode D10, diode D11, diode D12; Surge protection circuit is made up of piezo-resistance RV1, piezo-resistance RV2, piezo-resistance RV3;Diode D1 anode phase-connecting wire L1, Diode D5 negative electrode, it is diode D1 negative electrode connecting resistance RS one end, diode D2 negative electrode, diode D3 negative electrode, de- Fastening wire circle KA one end;Diode D2 anode phase-connecting wire L2, diode D6 negative electrode, diode D2 negative electrode connecting resistance RS's One end, diode D1 negative electrode, diode D2 negative electrode, tripping coil KA one end;Diode D3 anode phase-connecting wire L3, two Pole pipe D7 negative electrode, diode D3 negative electrode connecting resistance RS one end, diode D1 negative electrode, diode D2 negative electrode, dropout Coil KA one end;Diode D5 negative electrode phase-connecting wire L1, diode D5 anode meets diode D6 anode, diode D7 Anode, controllable silicon VT2 negative electrode,;Diode D6 negative electrode phase-connecting wire L2, diode D6 anode connects diode D7 sun Pole, controllable silicon VT2 negative electrode,;The resistance RS other end connects transformer by button S1;Diode D10 anode connects mutual inductance Device, diode D11 anode, diode D12 anode, diode D10 negative electrode phase-connecting wire L1, piezo-resistance RV1 one end, Diode D1 anode, diode D5 negative electrode;Diode D11 anode connects transformer, diode D12 anode, diode D11 negative electrode phase-connecting wire L2, piezo-resistance RV1 one end, diode D2 anode, diode D6 negative electrode;Diode D12's Anode connects transformer, diode D12 negative electrode phase-connecting wire L3, diode D3 anode, diode D7 negative electrode;Piezo-resistance RV1 one end phase-connecting wire L1, diode D10 negative electrode, diode D1 anode, diode D5 negative electrode, piezo-resistance RV1 One end, piezo-resistance RV1 other end phase-connecting wire L2, diode D11 negative electrode, diode D2 anode, diode D6 the moon Pole, the piezo-resistance RV2 other end;Piezo-resistance RV2 one end phase-connecting wire L3, diode D3 anode, diode D7 the moon Pole, diode D12 negative electrode, the piezo-resistance RV3 other end, piezo-resistance RV2 other end phase-connecting wire L2, diode D11 Negative electrode, diode D2 anode, diode D6 negative electrode;Piezo-resistance RV3 one end phase-connecting wire L1, diode D10 the moon Pole, piezo-resistance RV1 one end, diode D1 anode, diode D5 negative electrode, the piezo-resistance RV3 pole of another termination two Pipe D12 negative electrode, phase line L3, piezo-resistance RV2 one end, diode D3 anode, diode D7 negative electrode;Tripping coil KA Another terminating resistor R2 one end, controllable silicon VT1 anode, controllable silicon VT1 control pole connecting resistance R1 one end, controllable silicon VT1 negative electrode connects controllable silicon VT2 anode, and controllable silicon VT2 control pole connects electric leakage signal process circuit, the resistance R2 other end Connect power supply vcc, diode D9 anode, electric leakage signal process circuit, resistance R1 another terminating diode D9 negative electrode, electric leakage Signal processing circuit connects transformer and ground connection.
The present invention is further arranged to, and the rectified three-phase circuit is by diode D1, diode D2, diode D3, two Pole pipe D4, diode D5, diode D6, diode D7, diode D8 compositions;Trip circuit is by tripping coil KA, resistance R2, two Pole pipe D9, resistance R1, controllable silicon VT1, controllable silicon VT2 compositions;Button process circuit is by diode D10, diode D11, two poles Pipe D12, diode D13 are constituted;Surge protection circuit by piezo-resistance RV1, piezo-resistance RV2, piezo-resistance RV3, pressure-sensitive electricity Hinder RV4 compositions;Diode D1 anode phase-connecting wire L1, diode D10 negative electrode, piezo-resistance RV1 one end, diode D5 Negative electrode, diode D1 negative electrode connecting resistance RS one end, diode D2 negative electrode, diode D3 negative electrode, diode D4 the moon Pole, tripping coil KA one end;Diode D2 anode phase-connecting wire L2, diode D11 negative electrode, piezo-resistance RV2 one end, Diode D6 negative electrode, diode D2 negative electrode connecting resistance RS one end, diode D1 negative electrode, diode D3 negative electrode, two Pole pipe D4 negative electrode, tripping coil KA one end;Diode D3 anode phase-connecting wire L3, diode D11 negative electrode, piezo-resistance RV3 one end, diode D7 negative electrode, diode D3 negative electrode connecting resistance RS one end, diode D2 negative electrode, diode D1 Negative electrode, diode D4 negative electrode, tripping coil KA one end;Diode D4 anode phase-connecting wire N, diode D12 negative electrode, Piezo-resistance RV4 one end, diode D4 negative electrode, diode D1 negative electrode connecting resistance RS one end, diode D2 negative electrode, Diode D3 negative electrode, diode D1 negative electrode, tripping coil KA one end;The resistance RS other end connects mutual inductance by button S1 Device;Diode D10 anode connects transformer, diode D11 anode, diode D12 anode, diode D13 anode, two Pole pipe D10 negative electrode phase-connecting wire L1, piezo-resistance RV1 one end, diode D5 negative electrode;Diode D11 anode connects mutual inductance Device, diode D10 anode, diode D12 anode, diode D13 anode, diode D11 negative electrode phase-connecting wire L2, pressure Quick resistance RV2 one end, diode D6 negative electrode;Diode D2 anode connects transformer, diode D11 anode, diode D10 anode, diode D13 anode, diode D12 negative electrode phase-connecting wire L3, piezo-resistance RV3 one end, diode D7 Negative electrode;Diode D13 anode connects transformer, diode D11 anode, diode D12 anode, diode D10 sun Pole, diode D13 negative electrode phase-connecting wire N, piezo-resistance RV4 one end, diode D8 negative electrode;Piezo-resistance RV1 one end Phase-connecting wire L1, diode D5 negative electrode, piezo-resistance RV1 another termination piezo-resistance RV2 other end, piezo-resistance RV3 The other end, the piezo-resistance RV4 other end;Piezo-resistance RV2 one end phase-connecting wire L2, diode D6 negative electrode, pressure-sensitive electricity Hinder the RV2 another termination piezo-resistance RV1 other end, the piezo-resistance RV3 other end, the piezo-resistance RV4 other end;Pressure Quick resistance RV3 one end phase-connecting wire L3, diode D7 negative electrode, piezo-resistance RV3 another termination piezo-resistance RV2's is another End, the piezo-resistance RV1 other end, the piezo-resistance RV4 other end;Piezo-resistance RV4 one end phase-connecting wire N, diode D8 Negative electrode, the piezo-resistance RV4 another termination piezo-resistance RV2 other end, the piezo-resistance RV3 other end, piezo-resistance The RV1 other end;Diode D5 negative electrode phase-connecting wire L1, diode D5 anode meets diode D6 anode, diode D7 Anode, diode D8 anode, controllable silicon VT2 negative electrode,;Diode D6 negative electrode phase-connecting wire L2, diode D6 anode Connect diode D5 anode, diode D7 anode, diode D8 anode, controllable silicon VT2 negative electrode,;Diode D7's Negative electrode phase-connecting wire L3, diode D7 anode connect diode D6 anode, diode D5 anode, diode D8 anode, can Control silicon VT2 negative electrode,;Diode D8 negative electrode phase-connecting wire N, diode D8 anode connect diode D6 anode, diode D7 anode, diode D5 anode, controllable silicon VT2 negative electrode,;Tripping coil KA another terminating resistor R2 one end, Controllable silicon VT1 anode, controllable silicon VT1 control pole connecting resistance R1 one end, controllable silicon VT1 negative electrode connects controllable silicon VT2's Anode, controllable silicon VT2 control pole connects electric leakage signal process circuit, resistance R2 another termination power vcc, diode D9 sun Pole, electric leakage signal process circuit, resistance R1 another terminating diode D9 negative electrode, electric leakage signal process circuit connect transformer and Ground connection.
Beneficial effects of the present invention:It is provided by the present invention to be used for three-phase circuit simulated leakage current generating circuit, the electricity Road is used for residual current action breaker circuit, and three-phase residual current action breaker can arbitrarily select two-phase or one and zero Used between line, simulated leakage current generating circuit function is normal, can stablize, reliably detect residual current action breaker Aftercurrent action protecting function it is whether normal.
Brief description of the drawings
Fig. 1 is theory diagram of the invention;
Fig. 2 is the circuit diagram of the embodiment of the present invention 1;
Fig. 3 is the circuit diagram of the embodiment of the present invention 2;
Fig. 4 is the circuit diagram of the embodiment of the present invention 3;
Fig. 5 is the circuit diagram of the embodiment of the present invention 4.
Embodiment
With reference to the accompanying drawings and examples, the embodiment to the present invention is described in further detail.Implement below Example is used to illustrate the present invention, but is not limited to the scope of the present invention.
Below with reference to Fig. 1 to Fig. 5, the present invention will be described.
One kind is applied to three-phase circuit simulated leakage current generating circuit, including rectified three-phase circuit, trip circuit, electric leakage Signal processing circuit, transformer, button process circuit, surge protection circuit;Three-phase electricity after rectified three-phase circuit rectification, then Handled by button process circuit, the simulated leakage electric current of a pulsating direct current can be produced, this simulated leakage electric current warp Cross and induced signal is exported by transformer after transformer give electric leakage signal process circuit, then drive electrical apparatus release to thread off through trip circuit, Three-phase residual current action breaker is disconnected, realizes and the aftercurrent action protecting function of residual current action breaker is entered Row detection, surge protection circuit realizes the surge protection to whole circuit.
Embodiment 1, as shown in Fig. 2 the rectified three-phase circuit is by diode D1, diode D2, diode D3, diode D4, diode D5, diode D6, diode D7 compositions;Trip circuit is by tripping coil KA, resistance R2, diode D9, resistance R1, controllable silicon VT1, controllable silicon VT2 compositions;Button process circuit is made up of diode D10, diode D11, diode D12;Wave Protection circuit is gushed to be made up of piezo-resistance RV1, piezo-resistance RV2, piezo-resistance RV3;Diode D1 anode phase-connecting wire L1, two Pole pipe D5 negative electrode, diode D1 negative electrode connecting resistance RS one end, diode D2 negative electrode, diode D3 negative electrode, dropout Coil KA one end;Diode D2 anode phase-connecting wire L2, diode D6 negative electrode, the one of diode D2 negative electrode connecting resistance RS End, diode D1 negative electrode, diode D2 negative electrode, tripping coil KA one end;Diode D3 anode phase-connecting wire L3, two poles Pipe D7 negative electrode, diode D3 negative electrode connecting resistance RS one end, diode D1 negative electrode, diode D2 negative electrode, trip line Enclose KA one end;Diode D5 negative electrode phase-connecting wire L1, diode D5 anode connect diode D6 anode, diode D7 sun Pole, controllable silicon VT2 negative electrode,;Diode D6 negative electrode phase-connecting wire L2, diode D6 anode connect diode D7 anode, Controllable silicon VT2 negative electrode,;The resistance RS other end connects transformer by button S1;Diode D10 anode connect transformer, Diode D11 anode, diode D12 anode, diode D10 negative electrode phase-connecting wire L1, piezo-resistance RV1 one end, two Pole pipe D1 anode, diode D5 negative electrode;Diode D11 anode connects transformer, diode D12 anode, diode D11 Negative electrode phase-connecting wire L2, piezo-resistance RV1 one end, diode D2 anode, diode D6 negative electrode;Diode D12 sun Pole connects transformer, diode D12 negative electrode phase-connecting wire L3, diode D3 anode, diode D7 negative electrode;Piezo-resistance RV1 One end phase-connecting wire L1, diode D10 negative electrode, diode D1 anode, diode D5 negative electrode, the one of piezo-resistance RV1 End, piezo-resistance RV1 other end phase-connecting wire L2, diode D11 negative electrode, diode D2 anode, diode D6 negative electrode, The piezo-resistance RV2 other end;Piezo-resistance RV2 one end phase-connecting wire L3, diode D3 anode, diode D7 negative electrode, Diode D12 negative electrode, the piezo-resistance RV3 other end, piezo-resistance RV2 other end phase-connecting wire L2, diode D11 the moon Pole, diode D2 anode, diode D6 negative electrode;Piezo-resistance RV3 one end phase-connecting wire L1, diode D10 negative electrode, pressure Quick resistance RV1 one end, diode D1 anode, diode D5 negative electrode, piezo-resistance RV3 another terminating diode D12 Negative electrode, phase line L3, piezo-resistance RV2 one end, diode D3 anode, diode D7 negative electrode;Tripping coil KA's is another One terminating resistor R2 one end, controllable silicon VT1 anode, controllable silicon VT1 control pole connecting resistance R1 one end, controllable silicon VT1 Negative electrode connect controllable silicon VT2 anode, controllable silicon VT2 control pole connects electric leakage signal process circuit, resistance R2 another termination Power supply vcc, diode D9 anode, electric leakage signal process circuit, resistance R1 another terminating diode D9 negative electrode, electric leakage letter Number process circuit connects transformer and ground connection.
Embodiment 2, as shown in figure 3, embodiment 2 is with respect to for embodiment 1, simply tripping coil KA wiring position differs Sample.
Embodiment 3, as shown in figure 4, the rectified three-phase circuit is by diode D1, diode D2, diode D3, diode D4, diode D5, diode D6, diode D7, diode D8 compositions;Trip circuit is by tripping coil KA, resistance R2, diode D9, resistance R1, controllable silicon VT1, controllable silicon VT2 compositions;Button process circuit is by diode D10, diode D11, diode D12, diode D13 are constituted;Surge protection circuit by piezo-resistance RV1, piezo-resistance RV2, piezo-resistance RV3, piezo-resistance RV4 is constituted;Diode D1 anode phase-connecting wire L1, diode D10 negative electrode, piezo-resistance RV1 one end, diode D5 the moon Pole, diode D1 negative electrode connecting resistance RS one end, diode D2 negative electrode, diode D3 negative electrode, diode D4 negative electrode, Tripping coil KA one end;Diode D2 anode phase-connecting wire L2, diode D11 negative electrode, piezo-resistance RV2 one end, two Pole pipe D6 negative electrode, diode D2 negative electrode connecting resistance RS one end, diode D1 negative electrode, diode D3 negative electrode, two poles Pipe D4 negative electrode, tripping coil KA one end;Diode D3 anode phase-connecting wire L3, diode D11 negative electrode, piezo-resistance RV3 one end, diode D7 negative electrode, diode D3 negative electrode connecting resistance RS one end, diode D2 negative electrode, diode D1 Negative electrode, diode D4 negative electrode, tripping coil KA one end;Diode D4 anode phase-connecting wire N, diode D12 negative electrode, Piezo-resistance RV4 one end, diode D4 negative electrode, diode D1 negative electrode connecting resistance RS one end, diode D2 negative electrode, Diode D3 negative electrode, diode D1 negative electrode, tripping coil KA one end;The resistance RS other end connects mutual inductance by button S1 Device;Diode D10 anode connects transformer, diode D11 anode, diode D12 anode, diode D13 anode, two Pole pipe D10 negative electrode phase-connecting wire L1, piezo-resistance RV1 one end, diode D5 negative electrode;Diode D11 anode connects mutual inductance Device, diode D10 anode, diode D12 anode, diode D13 anode, diode D11 negative electrode phase-connecting wire L2, pressure Quick resistance RV2 one end, diode D6 negative electrode;Diode D2 anode connects transformer, diode D11 anode, diode D10 anode, diode D13 anode, diode D12 negative electrode phase-connecting wire L3, piezo-resistance RV3 one end, diode D7 Negative electrode;Diode D13 anode connects transformer, diode D11 anode, diode D12 anode, diode D10 sun Pole, diode D13 negative electrode phase-connecting wire N, piezo-resistance RV4 one end, diode D8 negative electrode;Piezo-resistance RV1 one end Phase-connecting wire L1, diode D5 negative electrode, piezo-resistance RV1 another termination piezo-resistance RV2 other end, piezo-resistance RV3 The other end, the piezo-resistance RV4 other end;Piezo-resistance RV2 one end phase-connecting wire L2, diode D6 negative electrode, pressure-sensitive electricity Hinder the RV2 another termination piezo-resistance RV1 other end, the piezo-resistance RV3 other end, the piezo-resistance RV4 other end;Pressure Quick resistance RV3 one end phase-connecting wire L3, diode D7 negative electrode, piezo-resistance RV3 another termination piezo-resistance RV2's is another End, the piezo-resistance RV1 other end, the piezo-resistance RV4 other end;Piezo-resistance RV4 one end phase-connecting wire N, diode D8 Negative electrode, the piezo-resistance RV4 another termination piezo-resistance RV2 other end, the piezo-resistance RV3 other end, piezo-resistance The RV1 other end;Diode D5 negative electrode phase-connecting wire L1, diode D5 anode meets diode D6 anode, diode D7 Anode, diode D8 anode, controllable silicon VT2 negative electrode,;Diode D6 negative electrode phase-connecting wire L2, diode D6 anode Connect diode D5 anode, diode D7 anode, diode D8 anode, controllable silicon VT2 negative electrode,;Diode D7's Negative electrode phase-connecting wire L3, diode D7 anode connect diode D6 anode, diode D5 anode, diode D8 anode, can Control silicon VT2 negative electrode,;Diode D8 negative electrode phase-connecting wire N, diode D8 anode connect diode D6 anode, diode D7 anode, diode D5 anode, controllable silicon VT2 negative electrode,;Tripping coil KA another terminating resistor R2 one end, Controllable silicon VT1 anode, controllable silicon VT1 control pole connecting resistance R1 one end, controllable silicon VT1 negative electrode connects controllable silicon VT2's Anode, controllable silicon VT2 control pole connects electric leakage signal process circuit, resistance R2 another termination power vcc, diode D9 sun Pole, electric leakage signal process circuit, resistance R1 another terminating diode D9 negative electrode, electric leakage signal process circuit connect transformer and Ground connection.
Embodiment 4, as shown in figure 5, embodiment 4 is with respect to for embodiment 3, simply tripping coil KA wiring position differs Sample
After the rectified three-phase circuit that three phase mains L1, L2, L3, N are constituted via diode D1-D8, power positive end passes through Resistance RS, test button S1, power supply L1, L2, L3, N are connected through transformer, then by diode D10-D13 respectively.
During used in three phase mains, the electricity of the positive pole after test button S1, three phase rectifier is pressed through test resistance RS, test button S1, transformer TA, diode D10-D13, produce the simulation residual current of a pulsating direct current on transformer TA, and by mutual inductance Device TA is transmitted to electric leakage signal process circuit, output triggering controllable silicon VT2, controllable silicon after signal judges through electric leakage signal process circuit VT1 is constantly in triggering state, now VT1 and VT2 are simultaneously turned on, tripping coil due to being connected on by R1 and D9 on power supply VCC KA, which is powered, to thread off, and breaker disconnects.
When used in two phase electricity, it is assumed that during used in L1, L2, press test button S1, power supply L1, L2 by diode D1, After D2, D5, D6 rectification, the positive pole of power supply electricity through test resistance RS, test button S1, transformer TA, diode D10, D11, The simulation residual current of a pulsating direct current is produced on transformer TA, and electric leakage signal process circuit is transmitted to by transformer TA, is believed Output triggering controllable silicon VT2, controllable silicon VT1 are due to being connected on power supply by R1 and D9 after number judging through electric leakage signal process circuit On VCC, triggering state is constantly in, now VT1 and VT2 are simultaneously turned on, tripping coil KA, which is powered, to thread off, and breaker disconnects.
Application between other alternate and phase and zero line is as above.
Described above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art For member, without departing from the technical principles of the invention, some improvement and modification can also be made, above-mentioned hypothesis these Improvement and modification also should be regarded as protection scope of the present invention.

Claims (3)

1. one kind is applied to three-phase circuit simulated leakage current generating circuit, it is characterised in that:Including rectified three-phase circuit, thread off Circuit, electric leakage signal process circuit, transformer, button process circuit, surge protection circuit;Three-phase electricity passes through rectified three-phase circuit After rectification, then process button process circuit is handled, and can produce the simulated leakage electric current of a pulsating direct current, this simulation is let out Leakage current exports induced signal by transformer after transformer and gives electric leakage signal process circuit, then drives dropout through trip circuit Device is threaded off, and disconnects three-phase residual current action breaker, realizes and the residual current acting of residual current action breaker is protected Protective function is detected that surge protection circuit realizes the surge protection to whole circuit.
2. it is according to claim 1 a kind of suitable for three-phase circuit simulated leakage current generating circuit, it is characterised in that:Institute Rectified three-phase circuit is stated to be made up of diode D1, diode D2, diode D3, diode D5, diode D6, diode D7;It is de- Button circuit is made up of tripping coil KA, resistance R2, diode D9, resistance R1, controllable silicon VT1, controllable silicon VT2;Button processing electricity It route diode D10, diode D11, diode D12 compositions;Surge protection circuit by piezo-resistance RV1, piezo-resistance RV2, Piezo-resistance RV3 is constituted;Diode D1 anode phase-connecting wire L1, diode D5 negative electrode, diode D1 negative electrode connecting resistance RS One end, diode D2 negative electrode, diode D3 negative electrode, tripping coil KA one end;Diode D2 anode phase-connecting wire L2, Diode D6 negative electrode, it is diode D2 negative electrode connecting resistance RS one end, diode D1 negative electrode, diode D2 negative electrode, de- Fastening wire circle KA one end;Diode D3 anode phase-connecting wire L3, diode D7 negative electrode, diode D3 negative electrode connecting resistance RS's One end, diode D1 negative electrode, diode D2 negative electrode, tripping coil KA one end;Diode D5 negative electrode phase-connecting wire L1, two Pole pipe D5 anode connect diode D6 anode, diode D7 anode, controllable silicon VT2 negative electrode,;Diode D6 negative electrode Phase-connecting wire L2, diode D6 anode connect diode D7 anode, controllable silicon VT2 negative electrode,;The resistance RS other end passes through Button S1 connects transformer;Diode D10 anode connects transformer, diode D11 anode, diode D12 anode, diode D10 negative electrode phase-connecting wire L1, piezo-resistance RV1 one end, diode D1 anode, diode D5 negative electrode;Diode D11's Anode connects transformer, diode D12 anode, diode D11 negative electrode phase-connecting wire L2, piezo-resistance RV1 one end, diode D2 anode, diode D6 negative electrode;Diode D12 anode connects transformer, diode D12 negative electrode phase-connecting wire L3, two poles Pipe D3 anode, diode D7 negative electrode;Piezo-resistance RV1 one end phase-connecting wire L1, diode D10 negative electrode, diode D1 Anode, diode D5 negative electrode, piezo-resistance RV1 one end, piezo-resistance RV1 other end phase-connecting wire L2, diode D11 Negative electrode, diode D2 anode, diode D6 negative electrode, the piezo-resistance RV2 other end;A piezo-resistance RV2 termination Phase line L3, diode D3 anode, diode D7 negative electrode, diode D12 negative electrode, the piezo-resistance RV3 other end, it is pressure-sensitive Resistance RV2 other end phase-connecting wire L2, diode D11 negative electrode, diode D2 anode, diode D6 negative electrode;Pressure-sensitive electricity Hinder RV3 one end phase-connecting wire L1, diode D10 negative electrode, piezo-resistance RV1 one end, diode D1 anode, diode D5 Negative electrode, piezo-resistance RV3 another terminating diode D12 negative electrode, phase line L3, piezo-resistance RV2 one end, diode D3 Anode, diode D7 negative electrode;Tripping coil KA another terminating resistor R2 one end, controllable silicon VT1 anode, controllable silicon VT1 control pole connecting resistance R1 one end, controllable silicon VT1 negative electrode connects controllable silicon VT2 anode, controllable silicon VT2 control pole Connect electric leakage signal process circuit, resistance R2 another termination power vcc, diode D9 anode, electric leakage signal process circuit, electricity R1 another terminating diode D9 negative electrode is hindered, electric leakage signal process circuit connects transformer and ground connection.
3. it is according to claim 1 a kind of suitable for three-phase circuit simulated leakage current generating circuit, it is characterised in that:Institute Rectified three-phase circuit is stated by diode D1, diode D2, diode D3, diode D4, diode D5, diode D6, diode D7, diode D8 are constituted;Trip circuit is by tripping coil KA, resistance R2, diode D9, resistance R1, controllable silicon VT1, controllable silicon VT2 is constituted;Button process circuit is made up of diode D10, diode D11, diode D12, diode D13;Surge protection electricity Route piezo-resistance RV1, piezo-resistance RV2, piezo-resistance RV3, piezo-resistance RV4 compositions;Diode D1 anode phase-connecting wire L1, diode D10 negative electrode, piezo-resistance RV1 one end, diode D5 negative electrode, diode D1 negative electrode connecting resistance RS's One end, diode D2 negative electrode, diode D3 negative electrode, diode D4 negative electrode, tripping coil KA one end;Diode D2's Anode phase-connecting wire L2, diode D11 negative electrode, piezo-resistance RV2 one end, diode D6 negative electrode, diode D2 negative electrode Connecting resistance RS one end, diode D1 negative electrode, diode D3 negative electrode, diode D4 negative electrode, tripping coil KA one end; Diode D3 anode phase-connecting wire L3, diode D11 negative electrode, piezo-resistance RV3 one end, diode D7 negative electrode, two poles Pipe D3 negative electrode connecting resistance RS one end, diode D2 negative electrode, diode D1 negative electrode, diode D4 negative electrode, trip line Enclose KA one end;Diode D4 anode phase-connecting wire N, diode D12 negative electrode, piezo-resistance RV4 one end, diode D4 Negative electrode, diode D1 negative electrode connecting resistance RS one end, diode D2 negative electrode, diode D3 negative electrode, diode D1 the moon Pole, tripping coil KA one end;The resistance RS other end connects transformer by button S1;Diode D10 anode connect transformer, Diode D11 anode, diode D12 anode, diode D13 anode, it is diode D10 negative electrode phase-connecting wire L1, pressure-sensitive Resistance RV1 one end, diode D5 negative electrode;Diode D11 anode connects transformer, diode D10 anode, diode D12 anode, diode D13 anode, diode D11 negative electrode phase-connecting wire L2, piezo-resistance RV2 one end, diode D6 Negative electrode;Diode D2 anode connects transformer, diode D11 anode, diode D10 anode, diode D13 sun Pole, diode D12 negative electrode phase-connecting wire L3, piezo-resistance RV3 one end, diode D7 negative electrode;Diode D13 anode connects Transformer, diode D11 anode, diode D12 anode, diode D10 anode, diode D13 negative electrode phase-connecting wire N, piezo-resistance RV4 one end, diode D8 negative electrode;Piezo-resistance RV1 one end phase-connecting wire L1, diode D5 negative electrode, The piezo-resistance RV1 another termination piezo-resistance RV2 other end, the piezo-resistance RV3 other end, piezo-resistance RV4 it is another One end;Piezo-resistance RV2 one end phase-connecting wire L2, diode D6 negative electrode, piezo-resistance RV2 another termination piezo-resistance The RV1 other end, the piezo-resistance RV3 other end, the piezo-resistance RV4 other end;Piezo-resistance RV3 one end phase-connecting wire L3, diode D7 negative electrode, the piezo-resistance RV3 another termination piezo-resistance RV2 other end, piezo-resistance RV1 it is another End, the piezo-resistance RV4 other end;Piezo-resistance RV4 one end phase-connecting wire N, diode D8 negative electrode, piezo-resistance RV4's Another termination piezo-resistance RV2 other end, the piezo-resistance RV3 other end, the piezo-resistance RV1 other end;Diode D5 Negative electrode phase-connecting wire L1, diode D5 anode connect diode D6 anode, diode D7 anode, diode D8 anode, Controllable silicon VT2 negative electrode,;Diode D6 negative electrode phase-connecting wire L2, diode D6 anode connect diode D5 anode, two poles Pipe D7 anode, diode D8 anode, controllable silicon VT2 negative electrode,;Diode D7 negative electrode phase-connecting wire L3, diode D7 Anode connect diode D6 anode, diode D5 anode, diode D8 anode, controllable silicon VT2 negative electrode,;Two poles Pipe D8 negative electrode phase-connecting wire N, diode D8 anode connect diode D6 anode, diode D7 anode, diode D5 sun Pole, controllable silicon VT2 negative electrode,;Tripping coil KA another terminating resistor R2 one end, controllable silicon VT1 anode, controllable silicon VT1 control pole connecting resistance R1 one end, controllable silicon VT1 negative electrode connects controllable silicon VT2 anode, controllable silicon VT2 control pole Connect electric leakage signal process circuit, resistance R2 another termination power vcc, diode D9 anode, electric leakage signal process circuit, electricity R1 another terminating diode D9 negative electrode is hindered, electric leakage signal process circuit connects transformer and ground connection.
CN201710730211.4A 2017-08-23 2017-08-23 One kind is applied to three-phase circuit simulated leakage current generating circuit Pending CN107332201A (en)

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