CN201717606U - Electricity-leakage circuit breaker used for remote control of undervoltage and overvoltage power supply and used on prepayment electricity meter - Google Patents
Electricity-leakage circuit breaker used for remote control of undervoltage and overvoltage power supply and used on prepayment electricity meter Download PDFInfo
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- CN201717606U CN201717606U CN2010202760073U CN201020276007U CN201717606U CN 201717606 U CN201717606 U CN 201717606U CN 2010202760073 U CN2010202760073 U CN 2010202760073U CN 201020276007 U CN201020276007 U CN 201020276007U CN 201717606 U CN201717606 U CN 201717606U
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Abstract
The utility model relates to an electricity-leakage circuit breaker for remote control of undervoltage and overvoltage power supply, which is used on a prepayment electricity meter. An electricity-leakage sampling circuit is connected the output of a main circuit breaker, the output terminal is connected to a switch control circuit through a filter circuit and an electricity-leakage drive, a logic recognition circuit receives remote signals and inputs and recognizes the remote signals, the logic recognition circuit is connected with the switch control circuit through a time delay drive circuit, the output terminal of the switch control circuit is connected with the control signal input terminal of the main circuit breaker, an overvoltage sampling circuit acquires signals from a rectification circuit, and the output terminal of the overvoltage sampling circuit is connected with the switch control circuit through a voltage comparison circuit. The electricity-leakage circuit breaker for remote control of undervoltage and overvoltage power supply, which is used on the prepayment electricity meter, has the advantages of high sensitivity, high reliability, low cost and small volume, and has the functions of overvoltage protection, electricity-leakage protection, and remote signal control, thereby being the ideal circuit breaker matched with the prepayment electricity meter.
Description
Technical field
The utility model relates to electric control appliance, is the residual current circuit breaker of a kind of pre-paying kilowatt-hour meter with power supply under voltage overvoltage Long-distance Control specifically.
Background technology
Existing power consumption equipment because electrical network or circuit question and the overvoltage operation finally causes power consumption equipment to damage, or causes electric leakage because line insulation is damaged through regular meeting, causes safety problem; And earth leakage protective device does not on the market have remote control function, can't realize the remote control function of prepayment meter.
The utility model content
At the defective that exists in the prior art; the purpose of this utility model is to provide the residual current circuit breaker of a kind of pre-paying kilowatt-hour meter with power supply under voltage overvoltage Long-distance Control; highly sensitive; the reliability height; cost is low; volume is little, and has overvoltage protection, earth leakage protective, remote signal controlled function, is the supporting desirable circuit breaker of prepayment meter.
For reaching above purpose, the technical scheme that the utility model is taked is:
Pre-paying kilowatt-hour meter is characterized in that with the residual current circuit breaker of power supply under voltage overvoltage Long-distance Control, comprising:
The input of sampling circuit of electric leakage is connected with the output of main circuit breaker (main circuit breaker),
The output of sampling circuit of electric leakage is connected with the input of filter circuit,
The output of filter circuit drives the electric leakage driving signal input that is connected to the ON-OFF control circuit of being made up of controllable silicon through electric leakage,
The identification to remote signal is imported and finished to the input receiving remote signal of logic identification circuit,
The output of logic identification circuit is connected with the input of delay driving circuit,
The time delayed signal input of the output of delay driving circuit and ON-OFF control circuit is connected,
The output of ON-OFF control circuit is connected with the signal input end of main circuit breaker,
The overvoltage sample circuit obtains signal from rectification circuit,
The output of overvoltage sample circuit is connected with the input of voltage comparator circuit,
The voltage comparison signal input of the output of voltage comparator circuit and ON-OFF control circuit is connected.
On the basis of technique scheme, be provided with a magnetictrip in the described ON-OFF control circuit,
The output of one termination main circuit breaker of magnetictrip, the other end connect an input of rectification circuit and a power input of ON-OFF control circuit respectively.
On the basis of technique scheme, described main circuit breaker is a main circuit miniature circuit breaker DZ47, or is a breaker of plastic casing.
On the basis of technique scheme, described sampling circuit of electric leakage comprises: zero sequence current mutual inductor ZTA1;
The lead of main circuit passes from zero sequence current mutual inductor ZTA1,
The secondary output of zero sequence current mutual inductor ZTA1 connects filter circuit.
On the basis of technique scheme, described filter circuit comprises: resistance R 1, R3, capacitor C 1, C2;
Secondary and the resistance R 1 of zero sequence current mutual inductor ZTA1 is in parallel,
One end of resistance R 1 is connected with an end of resistance R 3, an end of capacitor C 1 respectively,
The other end of resistance R 1 is connected to the ground end of rectification circuit with after the other end of capacitor C 1 is connected,
After one end of the other end capacitor C 2 of resistance R 3 connects, be connected to the input of ON-OFF control circuit,
The other end of capacitor C 2 is received the ground end of rectification circuit.
On the basis of technique scheme, described rectification circuit is the full bridge rectifier that possesses voltage stabilizing function, comprises diode D1, D2, D5～D8, resistance R 14;
Diode D5, the series connection of D6 both positive and negative polarity are one group,
Diode D7, the series connection of D8 both positive and negative polarity are one group,
The positive pole of diode D6 is connected with the positive pole of diode D8,
The negative pole of diode D5 is connected with the negative pole of diode D7,
The positive pole of the negative pole of diode D8 and diode D7 is connected with an end of the electromagnetic trip coil of magnetictrip, the negative electrode of controllable silicon Q1 in the ON-OFF control circuit respectively, the zero line of another termination main circuit breaker output of electromagnetic trip coil,
The positive pole of the negative pole of diode D6 and diode D5 and diode D1 positive pole all are connected to phase line of power;
Diode D1 negative pole connects an end of the resistance R 4 of voltage stabilizing circuit, the anode of the controllable silicon Q1 in the ON-OFF control circuit respectively,
The negative pole of diode D2 connects the suitable for reading of the zero line of main circuit breaker input power supply and dropout switch that this contact is positioned at magnetictrip;
The zero line of resistance R 14 1 termination main circuit breaker input power supplys, the positive pole of another terminating diode D1.
On the basis of technique scheme, described voltage stabilizing circuit comprises: resistance R 4, voltage-stabiliser tube D9;
The negative pole of resistance R 4 one termination rectification circuit diode D1, the other end connects the collector electrode of voltage-stabiliser tube D9 negative pole, triode Q3 respectively,
The positive pole of voltage-stabiliser tube D9 connects the positive pole of diode D2, the emitter of triode Q3 respectively,
The grounded emitter of triode Q3.
On the basis of technique scheme, described ON-OFF control circuit comprises: controllable silicon Q1, Q2, magnetictrip;
The anode of controllable silicon Q1 connects the negative electrode of diode D1,
The anode of controllable silicon Q2 connects the positive power source terminal of full bridge rectifier output,
The negative electrode of controllable silicon Q2 connects the ground end of full bridge rectifier.
On the basis of technique scheme, described logic identification circuit comprises: resistance R 11,12, diode D4;
Chuan Lian resistance R 12, resistance R 11, diode D4 form the remote signal input successively,
The negative pole process resistance R 10 of diode D4 is connected to the base stage of triode Q3,
The negative pole of diode D4 also is connected with the positive pole of capacitor C 6,
The negative pole of capacitor C 6 connects the emitter of triode Q3.
On the basis of technique scheme, described delay driving circuit comprises: diode D3, resistance R 5, R6, capacitor C 4, C5;
Diode D3 positive pole connects the 12V positive source of voltage stabilizing circuit,
Diode D3 negative pole connects an end of resistance R 5, the positive pole of capacitor C 4 respectively,
The other end of resistance R 5 connects an end of resistance R 6, the positive pole of capacitor C 5 respectively,
The other end ground connection of the negative pole of the negative pole of capacitor C 4, capacitor C 5, resistance R 6,
The positive pole of capacitor C 5 connects the control utmost point of controllable silicon Q1.
On the basis of technique scheme, described overvoltage sample circuit comprises: resistance R 7, R8, capacitor C 3;
Resistance R 7, R8 series connection,
Capacitor C 3 is connected in parallel on the resistance R 8,
The other end of resistance R 7 connects the positive pole of controllable silicon Q2,
The other end of resistance R 8 connects the negative pole of controllable silicon Q2.
On the basis of technique scheme, described voltage comparator circuit comprises: resistance R 9, bidirectional diode DB3;
Resistance R 9 and bidirectional diode DB3 series connection,
The control utmost point of the termination control silicon Q2 of bidirectional diode DB3, an end of resistance R 9 links to each other with the common port that is connected of resistance R 7, R8.
Pre-paying kilowatt-hour meter described in the utility model is with the residual current circuit breaker of power supply under voltage overvoltage Long-distance Control, and is highly sensitive, the reliability height; cost is low; volume is little, and has overvoltage protection, earth leakage protective, remote signal controlled function, is the supporting desirable circuit breaker of prepayment meter.The utility model can be when user's prepayment electric expense uses up the disjunction main circuit breaker, realize the electricity consumption pre paid functionality, also can be used as the circuit breaker that annex is coupled to different product.
Description of drawings
The utility model has following accompanying drawing:
Fig. 1 theory diagram of the present utility model,
The circuit diagram of Fig. 2 embodiment 1 of the present utility model.
Embodiment
Below in conjunction with accompanying drawing the utility model is described in further detail.
Fig. 1 is the theory diagram of pre-paying kilowatt-hour meter described in the utility model with the residual current circuit breaker of power supply under voltage overvoltage Long-distance Control, as shown in Figure 1, the output of sampling circuit of electric leakage and main circuit breaker is connected, its output is wave circuit after filtration, electric leakage is connected to ON-OFF control circuit after driving, the identification to remote signal is imported and finished to logic identification circuit receiving remote signal, connect ON-OFF control circuit through delay driving circuit again, the output of ON-OFF control circuit is connected with the signal input end of main circuit breaker, the overvoltage sample circuit obtains signal from rectification circuit, and its output connects ON-OFF control circuit through voltage comparator circuit.In particular:
The input of sampling circuit of electric leakage is connected with the output of main circuit breaker (main circuit breaker),
The output of sampling circuit of electric leakage is connected with the input of filter circuit,
The output of filter circuit drives the electric leakage driving signal input that is connected to the ON-OFF control circuit of being made up of controllable silicon through electric leakage,
The identification to remote signal is imported and finished to the input receiving remote signal of logic identification circuit,
The output of logic identification circuit is connected with the input of delay driving circuit,
The time delayed signal input of the output of delay driving circuit and ON-OFF control circuit is connected,
The output of ON-OFF control circuit is connected with the signal input end of main circuit breaker,
The overvoltage sample circuit obtains signal from rectification circuit,
The output of overvoltage sample circuit is connected with the input of voltage comparator circuit,
The voltage comparison signal input of the output of voltage comparator circuit and ON-OFF control circuit is connected.
On the basis of technique scheme, be provided with a magnetictrip in the described ON-OFF control circuit,
The output of one termination main circuit breaker of magnetictrip, the other end connect an input of rectification circuit and a power input of ON-OFF control circuit respectively.
On the basis of technique scheme, described main circuit breaker is a main circuit miniature circuit breaker DZ47, or is a breaker of plastic casing.
Fig. 2 is a specific embodiment of the present utility model, and as shown in Figure 2, described sampling circuit of electric leakage comprises: zero sequence current mutual inductor ZTA1;
The lead of main circuit passes from zero sequence current mutual inductor ZTA1,
The secondary output of zero sequence current mutual inductor ZTA1 connects filter circuit.
On the basis of technique scheme, described filter circuit comprises: resistance R 1, R3, capacitor C 1, C2;
Secondary and the resistance R 1 of zero sequence current mutual inductor ZTA1 is in parallel,
One end of resistance R 1 is connected with an end of resistance R 3, an end of capacitor C 1 respectively,
The other end of resistance R 1 is connected to the ground end of rectification circuit with after the other end of capacitor C 1 is connected,
After one end of the other end capacitor C 2 of resistance R 3 connects, be connected to the input of ON-OFF control circuit, specifically, the other end of resistance R 3 connects an end of capacitor C 2, the control utmost point of controllable silicon Q2 respectively;
The other end of capacitor C 2 is received the ground end of rectification circuit, i.e. ground connection.
As shown in Figure 2, the common point of the secondary terminating resistor R1 of zero sequence current mutual inductor ZTA1, resistance R 3, capacitor C 1, the common point of secondary other end connecting resistance R1, capacitor C 1, capacitor C 2.
On the basis of technique scheme, described rectification circuit is the full bridge rectifier that possesses voltage stabilizing function, comprises diode D1, D2, D5～D8, resistance R 14;
Diode D5, the series connection of D6 both positive and negative polarity are one group,
Diode D7, the series connection of D8 both positive and negative polarity are one group,
The positive pole of diode D6 is connected with the positive pole of diode D8,
The negative pole of diode D5 is connected with the negative pole of diode D7,
The positive pole of the negative pole of diode D8 and diode D7 is connected with an end of the electromagnetic trip coil of magnetictrip, the negative electrode of controllable silicon Q1 in the ON-OFF control circuit respectively, the zero line of another termination main circuit breaker output of electromagnetic trip coil,
The positive pole of the negative pole of diode D6 and diode D5 and diode D1 positive pole all are connected to phase line of power;
Diode D1 negative pole connects an end of the resistance R 4 of voltage stabilizing circuit, the anode of the controllable silicon Q1 in the ON-OFF control circuit respectively,
The negative pole of diode D2 connects the suitable for reading of the zero line of main circuit breaker input power supply and dropout switch that this contact is positioned at magnetictrip;
The zero line of resistance R 14 1 termination main circuit breaker input power supplys, the positive pole of another terminating diode D1.
On the basis of technique scheme, described voltage stabilizing circuit comprises: resistance R 4, voltage-stabiliser tube D9;
The negative pole of resistance R 4 one termination rectification circuit diode D1, the other end connects the collector electrode of voltage-stabiliser tube D9 negative pole, triode Q3 respectively, that is: the 12V positive source of voltage stabilizing circuit connects the collector electrode of triode Q3,
The positive pole of voltage-stabiliser tube D9 connects the positive pole of diode D2, the emitter of triode Q3 respectively,
The grounded emitter of triode Q3.
On the basis of technique scheme, described ON-OFF control circuit comprises: controllable silicon Q1, Q2, magnetictrip;
The anode of controllable silicon Q1 connects the negative electrode of diode D1,
The anode of controllable silicon Q2 connects the positive power source terminal of full bridge rectifier output,
The negative electrode of controllable silicon Q2 connects the ground end of full bridge rectifier.
On the basis of technique scheme, described logic identification circuit comprises: resistance R 11,12, diode D4;
Chuan Lian resistance R 12, resistance R 11, diode D4 form the remote signal input successively,
The negative pole process resistance R 10 of diode D4 is connected to the base stage of triode Q3,
The negative pole of diode D4 also is connected with the positive pole of capacitor C 6,
The negative pole of capacitor C 6 connects the emitter of triode Q3.
Resistance R 10, capacitor C 6 and triode Q3 constitute the remote signal identification circuit.
On the basis of technique scheme, described delay driving circuit comprises: diode D3, resistance R 5, R6, capacitor C 4, C5;
Diode D3 positive pole connects the 12V positive source of voltage stabilizing circuit,
Diode D3 negative pole connects an end of resistance R 5, the positive pole of capacitor C 4 respectively,
The other end of resistance R 5 connects an end of resistance R 6, the positive pole of capacitor C 5 respectively,
The other end ground connection of the negative pole of the negative pole of capacitor C 4, capacitor C 5, resistance R 6,
The positive pole of capacitor C 5 connects the control utmost point of controllable silicon Q1.
On the basis of technique scheme, described overvoltage sample circuit comprises: resistance R 7, R8, capacitor C 3;
Resistance R 7, R8 series connection,
Capacitor C 3 is connected in parallel on the resistance R 8,
The other end of resistance R 7 connects the positive pole of controllable silicon Q2,
The other end of resistance R 8 connects the negative pole of controllable silicon Q2.
Be parallel to the two ends of full bridge rectifier output after 8 series connection of resistance R 7 resistance R, capacitor C 3 is parallel to resistance R 8 two ends.
On the basis of technique scheme, described voltage comparator circuit comprises: resistance R 9, bidirectional diode DB3;
Resistance R 9 and bidirectional diode DB3 series connection,
The control utmost point of the termination control silicon Q2 of bidirectional diode DB3, an end of resistance R 9 links to each other with the common port that is connected of resistance R 7, R8.
On the basis of technique scheme, between zero line and phase line, be provided with the leakage tests mechanism that forms by leak(age) test resistance R 2, piezo-resistance R0, leak(age) test button S1.
Sample circuit is by zero sequence current mutual inductor ZTA1.The lead of main circuit passes from zero sequence current mutual inductor, and the secondary output of zero sequence current mutual inductor ZTA1 connects filter circuit.The common point of a secondary termination filter circuit resistance R 1 resistance R 3 capacitor C 1 of zero sequence current mutual inductor ZTA1.When preset value greater than detection of electrical leakage appears in circuit; zero sequence current mutual inductor output electric leakage signal is sent into ON-OFF control circuit Q2 after filtering input triggers the Q2 conducting; make the coil of magnetictrip get electric promotion push rod the main circuit breaker branch is explained, realize the line electrical leakage defencive function.
Over-voltage protection function is achieved in that when line voltage is elevated to the overvoltage preset value; take out the DB3 comparison of signal voltage and comparison circuit by the common point that is connected overvoltage sample circuit resistance R 7 resistance R 8 that the full bridge rectifier output is made up of resistance R 7 resistance R 8 capacitor C 3; when the mid-point voltage of resistance R 7 resistance R 8 during greater than the threshold values of bidirectional diode DB3; output over-voltage triggering signal driving switch control circuit controllable silicon Q2 conducting; thereby make magnetictrip get the circuit breaker of electric disjunction main circuit, realize the power network overvoltage defencive function.
The implementation method of remote control function is: when prepayment meter has electricity charge remaining sum, electric energy meter outputs a control signal to by resistance R 11, one end of the resistance R 12 of the signal input receiving circuit that resistance R 12 diode D4 form, after sending into the signal recognition circuit of forming by resistance R 10 capacitor C 6 and triode Q3 after the 12 buck diode rectifications of resistance R 11 resistance R, make the Q3 conducting, after the triode Q3 conducting, the 12V direct voltage of regulator rectifier circuit output is gone into ground by triode Q3, the output of drive circuit no signal, ON-OFF control circuit controllable silicon Q1 Triggerless, controllable silicon Q1 ends, and the magnetictrip no current is not threaded off.When prepayment meter when Sorry, your ticket has not enough value, electric energy meter does not have remote control signal output, thereby triode Q3 does not have input signal to be ended, after triode Q3 ends, voltage division signal voltage is exported to ON-OFF control circuit silicon controlled Q1 input from the mid point of resistance R 5 resistance R 6 in the delay driving circuit time-delay back that the 12V direct voltage of regulator rectifier circuit output is formed via diode D3 resistance R 5 resistance R 6 capacitor C 4 capacitor C 5, trigger controllable silicon Q1 conducting, after the controllable silicon Q1 conducting, magnetictrip gets electric promotion push rod and makes the main circuit breaker separating brake, thereby realizes the remote signal controlled function.
Claims (10)
1. pre-paying kilowatt-hour meter is characterized in that with the residual current circuit breaker of power supply under voltage overvoltage Long-distance Control, comprising:
The input of sampling circuit of electric leakage is connected with the output of main circuit breaker,
The output of sampling circuit of electric leakage is connected with the input of filter circuit,
The output of filter circuit drives the electric leakage driving signal input that is connected to the ON-OFF control circuit of being made up of controllable silicon through electric leakage,
The identification to remote signal is imported and finished to the input receiving remote signal of logic identification circuit,
The output of logic identification circuit is connected with the input of delay driving circuit,
The time delayed signal input of the output of delay driving circuit and ON-OFF control circuit is connected,
The output of ON-OFF control circuit is connected with the signal input end of main circuit breaker,
The overvoltage sample circuit obtains signal from rectification circuit,
The output of overvoltage sample circuit is connected with the input of voltage comparator circuit,
The voltage comparison signal input of the output of voltage comparator circuit and ON-OFF control circuit is connected.
2. the pre-paying kilowatt-hour meter as claimed in claim 1 residual current circuit breaker of power supply under voltage overvoltage Long-distance Control is characterized in that: be provided with a magnetictrip in the described ON-OFF control circuit,
The output of one termination main circuit breaker of magnetictrip, the other end connect an input of rectification circuit and a power input of ON-OFF control circuit respectively.
3. the pre-paying kilowatt-hour meter as claimed in claim 1 residual current circuit breaker of power supply under voltage overvoltage Long-distance Control, it is characterized in that: described main circuit breaker is a main circuit miniature circuit breaker DZ47, or is a breaker of plastic casing.
4. as the residual current circuit breaker of claim 1 or 2 or 3 described pre-paying kilowatt-hour meters usefulness power supply under voltage overvoltage Long-distance Control, it is characterized in that: described sampling circuit of electric leakage comprises: zero sequence current mutual inductor ZTA1;
The lead of main circuit passes from zero sequence current mutual inductor ZTA1,
The secondary output of zero sequence current mutual inductor ZTA1 connects filter circuit.
5. the pre-paying kilowatt-hour meter as claimed in claim 4 residual current circuit breaker of power supply under voltage overvoltage Long-distance Control, it is characterized in that: described filter circuit comprises: resistance R 1, R3, capacitor C 1, C2;
Secondary and the resistance R 1 of zero sequence current mutual inductor ZTA1 is in parallel,
One end of resistance R 1 is connected with an end of resistance R 3, an end of capacitor C 1 respectively,
The other end of resistance R 1 is connected to the ground end of rectification circuit with after the other end of capacitor C 1 is connected,
After one end of the other end capacitor C 2 of resistance R 3 connects, be connected to the input of ON-OFF control circuit,
The other end of capacitor C 2 is received the ground end of rectification circuit.
6. the pre-paying kilowatt-hour meter as claimed in claim 5 residual current circuit breaker of power supply under voltage overvoltage Long-distance Control, it is characterized in that: described rectification circuit is the full bridge rectifier that possesses voltage stabilizing function, comprises diode D1, D2, D5～D8, resistance R 14;
Diode D5, the series connection of D6 both positive and negative polarity are one group,
Diode D7, the series connection of D8 both positive and negative polarity are one group,
The positive pole of diode D6 is connected with the positive pole of diode D8,
The negative pole of diode D5 is connected with the negative pole of diode D7,
The positive pole of the negative pole of diode D8 and diode D7 is connected with an end of the electromagnetic trip coil of magnetictrip, the negative electrode of controllable silicon Q1 in the ON-OFF control circuit respectively, the zero line of another termination main circuit breaker output of electromagnetic trip coil,
The positive pole of the negative pole of diode D6 and diode D5 and diode D1 positive pole all are connected to phase line of power;
Diode D1 negative pole connects an end of the resistance R 4 of voltage stabilizing circuit, the anode of the controllable silicon Q1 in the ON-OFF control circuit respectively,
The negative pole of diode D2 connects the suitable for reading of the zero line of main circuit breaker input power supply and dropout switch that this contact is positioned at magnetictrip;
The zero line of resistance R 14 1 termination main circuit breaker input power supplys, the positive pole of another terminating diode D1;
Described voltage stabilizing circuit comprises: resistance R 4, voltage-stabiliser tube D9;
The negative pole of resistance R 4 one termination rectification circuit diode D1, the other end connects the collector electrode of voltage-stabiliser tube D9 negative pole, triode Q3 respectively,
The positive pole of voltage-stabiliser tube D9 connects the positive pole of diode D2, the emitter of triode Q3 respectively,
The grounded emitter of triode Q3.
7. the pre-paying kilowatt-hour meter as claimed in claim 5 residual current circuit breaker of power supply under voltage overvoltage Long-distance Control, it is characterized in that: described ON-OFF control circuit comprises: controllable silicon Q1, Q2, magnetictrip;
The anode of controllable silicon Q1 connects the negative electrode of diode D1,
The anode of controllable silicon Q2 connects the positive power source terminal of full bridge rectifier output,
The negative electrode of controllable silicon Q2 connects the ground end of full bridge rectifier.
8. the pre-paying kilowatt-hour meter as claimed in claim 4 residual current circuit breaker of power supply under voltage overvoltage Long-distance Control, it is characterized in that: described logic identification circuit comprises: resistance R 11,12, diode D4;
Chuan Lian resistance R 12, resistance R 11, diode D4 form the remote signal input successively,
The negative pole process resistance R 10 of diode D4 is connected to the base stage of triode Q3,
The negative pole of diode D4 also is connected with the positive pole of capacitor C 6,
The negative pole of capacitor C 6 connects the emitter of triode Q3.
9. the pre-paying kilowatt-hour meter as claimed in claim 4 residual current circuit breaker of power supply under voltage overvoltage Long-distance Control, it is characterized in that: described delay driving circuit comprises: diode D3, resistance R 5, R6, capacitor C 4, C5;
Diode D3 positive pole connects the 12V positive source of voltage stabilizing circuit,
Diode D3 negative pole connects an end of resistance R 5, the positive pole of capacitor C 4 respectively,
The other end of resistance R 5 connects an end of resistance R 6, the positive pole of capacitor C 5 respectively,
The other end ground connection of the negative pole of the negative pole of capacitor C 4, capacitor C 5, resistance R 6,
The positive pole of capacitor C 5 connects the control utmost point of controllable silicon Q1.
10. the pre-paying kilowatt-hour meter as claimed in claim 4 residual current circuit breaker of power supply under voltage overvoltage Long-distance Control, it is characterized in that: described overvoltage sample circuit comprises: resistance R 7, R8, capacitor C 3;
Resistance R 7, R8 series connection,
Capacitor C 3 is connected in parallel on the resistance R 8,
The other end of resistance R 7 connects the positive pole of controllable silicon Q2,
The other end of resistance R 8 connects the negative pole of controllable silicon Q2;
Described voltage comparator circuit comprises: resistance R 9, bidirectional diode DB3;
Resistance R 9 and bidirectional diode DB3 series connection,
The control utmost point of the termination control silicon Q2 of bidirectional diode DB3, an end of resistance R 9 links to each other with the common port that is connected of resistance R 7, R8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202760073U CN201717606U (en) | 2010-07-30 | 2010-07-30 | Electricity-leakage circuit breaker used for remote control of undervoltage and overvoltage power supply and used on prepayment electricity meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202760073U CN201717606U (en) | 2010-07-30 | 2010-07-30 | Electricity-leakage circuit breaker used for remote control of undervoltage and overvoltage power supply and used on prepayment electricity meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201717606U true CN201717606U (en) | 2011-01-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202760073U Expired - Fee Related CN201717606U (en) | 2010-07-30 | 2010-07-30 | Electricity-leakage circuit breaker used for remote control of undervoltage and overvoltage power supply and used on prepayment electricity meter |
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| CN (1) | CN201717606U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104242225A (en) * | 2014-09-22 | 2014-12-24 | 国家电网公司 | Intelligent integrated prepayment switch |
| CN104465257A (en) * | 2013-09-23 | 2015-03-25 | 国家电网公司 | Leakage protecting circuit breaker |
| CN104577979A (en) * | 2015-01-28 | 2015-04-29 | 长城电器集团有限公司 | Novel residual current circuit-breaker circuit |
| CN105652947A (en) * | 2016-03-30 | 2016-06-08 | 无锡智卓电气有限公司 | Energy-saving control circuit of electric operating mechanism of circuit breaker |
-
2010
- 2010-07-30 CN CN2010202760073U patent/CN201717606U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104465257A (en) * | 2013-09-23 | 2015-03-25 | 国家电网公司 | Leakage protecting circuit breaker |
| CN104465257B (en) * | 2013-09-23 | 2017-05-10 | 国家电网公司 | Leakage protecting circuit breaker |
| CN104242225A (en) * | 2014-09-22 | 2014-12-24 | 国家电网公司 | Intelligent integrated prepayment switch |
| CN104242225B (en) * | 2014-09-22 | 2017-05-24 | 国家电网公司 | Intelligent integrated prepayment switch |
| CN104577979A (en) * | 2015-01-28 | 2015-04-29 | 长城电器集团有限公司 | Novel residual current circuit-breaker circuit |
| CN105652947A (en) * | 2016-03-30 | 2016-06-08 | 无锡智卓电气有限公司 | Energy-saving control circuit of electric operating mechanism of circuit breaker |
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Granted publication date: 20110119 Termination date: 20130730 |