CN105891709A - Tester for testing residual current circuit-breaker - Google Patents
Tester for testing residual current circuit-breaker Download PDFInfo
- Publication number
- CN105891709A CN105891709A CN201610397099.2A CN201610397099A CN105891709A CN 105891709 A CN105891709 A CN 105891709A CN 201610397099 A CN201610397099 A CN 201610397099A CN 105891709 A CN105891709 A CN 105891709A
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- circuit
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- lagging voltage
- wave
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/327—Testing of circuit interrupters, switches or circuit-breakers
- G01R31/3277—Testing of circuit interrupters, switches or circuit-breakers of low voltage devices, e.g. domestic or industrial devices, such as motor protections, relays, rotation switches
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/327—Testing of circuit interrupters, switches or circuit-breakers
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Emergency Protection Circuit Devices (AREA)
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Abstract
The invention relates to a tester for testing a residual current circuit-breaker. The tester comprises an AC power circuit, a phase generation circuit, an adjusting circuit and a time detection circuit, wherein the AC power circuit is provided with a first live wire terminal and a second live wire terminal; the phase generation circuit is used for being connected with a live wire output terminal of a tested device; the first live wire terminal and the second live wire terminal are used for being connected with a live wire input terminal of the tested device; a zero wire terminal of a load circuit is used for being connected with a zero wire terminal of the tested device; the phase generation circuit comprises a control button circuit; the control button circuit is used for controlling the phase generation circuit to generate testing current according with national standard. The tester is wider in testing range, and relatively stable and reliable in performance.
Description
Technical field
The present invention relates to a kind of tester for testing RCCB.
Background technology
According to standard GB/T 14048.2-2001, GB16916.1-2003, GB16917.1-2003 etc. specify: to the residue pulsating direct current or the residue simple sinusoidal alternating current that either apply suddenly or slowly rising has regulation, can ensure that the RCCB threaded off at the appointed time is referred to as A type RCCB.Either applying suddenly or slow rising are had the residue simple sinusoidal alternating current without DC component, can ensure that the RCCB threaded off at the appointed time, referred to as AC type RCCB.From the foregoing, it will be observed that A type RCCB covers the function of AC type RCCB.
Above-mentioned " the residue pulsating current of regulation " is following 4 kinds of situations: the half-wave rectified current of current lagging voltage 0, the half-wave rectified current of current lagging voltage 90, the half-wave rectified current of current lagging voltage 135, the half-wave rectified current of current lagging voltage 0 containing 6mA direct current.
Prior art does not exist the device measuring A type RCCB.
Summary of the invention
The technical problem to be solved is to provide a kind of scope of testing compared with wide and performance is relatively stable reliably for testing the tester of RCCB.
For solving above-mentioned technical problem, the invention provides a kind of tester for testing RCCB, it is characterised in that including: AC power circuit, DC power-supply circuit, phase generating circuit, ac leakage regulation circuit, phase place display circuit, indicator light circuit and time detection circuit；
AC power circuit has the first live wire end for constituting load circuit and for constituting the second live wire end of simulation loop of electric leakage, first live wire end and the second live wire end are for being connected with the live wire input of equipment under test, and the zero line side of described load circuit is for being connected with the zero line side of equipment under test；Described equipment under test is A type RCCB；
Phase generating circuit, for being connected with the fire wire output end of equipment under test；Phase generating circuit includes control knob circuit, and control knob circuit generates the half-wave rectified current of current lagging voltage 0, the half-wave rectified current of current lagging voltage 90, the half-wave rectified current of current lagging voltage 135 and the half-wave rectified current of the current lagging voltage 0 containing 6mA direct current for controlling phase generating circuit in described simulation loop of electric leakage respectively；
Described phase generating circuit includes: the first half-wave rectifying circuit of current lagging voltage 0, the second half-wave rectifying circuit of current lagging voltage 90, the 3rd half-wave rectifying circuit of current lagging voltage 135,6mA direct current generative circuit and controllable silicon current control circuit；Described controllable silicon current control circuit generates the half-wave rectified current of current lagging voltage 0, the half-wave rectified current of current lagging voltage 90, the half-wave rectified current of current lagging voltage 135 and the half-wave rectified current of the current lagging voltage 0 containing 6mA direct current according to the control signal that described first half-wave rectifying circuit, the second half-wave rectifying circuit and the 3rd half-wave rectifying circuit export in described simulation loop of electric leakage respectively；
3rd half-wave rectifying circuit of described current lagging voltage 135 includes: sine wave shaped circuit, charging circuit and door, resistance R9, resistance R10, resistance R11, potentiometer WR1 and operational amplifier IC1B；Sine wave shaped electricity routing transformer T2, diode D5, resistance R3, resistance R4, resistance R5, resistance R6, resistance R7 and operational amplifier IC1A are constituted；Charged electrical routing resistance R8 and electric capacity C5 is constituted, and resistance R8 is connected with the outfan of electric capacity C5 with operational amplifier IC1A；It is made up of diode D6 and D7 with door；Resistance R9 and resistance R10 is used for setting the voltage of adjusting relative to current lagging voltage 135；Resistance R11 and potentiometer WR1 is used for regulating the comparison voltage relative to current lagging voltage 135 of the backward end of operational amplifier IC1B；The outfan of operational amplifier IC1B is for exporting the control signal of current lagging voltage 135；
Ac leakage regulation circuit, for controlling the size of current of described simulation loop of electric leakage；
Time detection circuit, is conducted to the time needed for A type RCCB is threaded off, i.e. movement time for measuring from described simulation loop of electric leakage；
Described time detection circuit includes: single-chip microcomputer IC6, be connected with the detection of electrical leakage end of single-chip microcomputer IC6 for detecting the leakaging signal detecting circuit whether described simulation loop of electric leakage turns on and the charactron for showing the time being connected with the temporal information outfan of single-chip microcomputer IC6；Single-chip microcomputer IC6 measures according to the electric leakage signal that leakaging signal detecting circuit exports and is conducted to the time needed for A type RCCB is threaded off and by this time of described numeral method from described simulation loop of electric leakage；
Described controllable silicon current control circuit includes: the control signal that exports according to described first half-wave rectifying circuit, the second half-wave rectifying circuit and the 3rd half-wave rectifying circuit and the audion BG18 turned on, the opto-coupler chip IC4 that driven by audion BG18, A, K pole of the bidirectional triode thyristor BG19, bidirectional triode thyristor BG19 that are controlled break-make by opto-coupler chip IC4 is connected in described simulation loop of electric leakage.
The present invention has positive effect: the tester of (1) present invention includes: AC power circuit, DC power-supply circuit, phase generating circuit, ac leakage regulation circuit, phase place display circuit, indicator light circuit, time detection circuit.Described tester can be to the residual current value of A type RCCB with measure movement time.
Accompanying drawing explanation
Being further explained the present invention below in conjunction with accompanying drawing, wherein accompanying drawing is as follows:
Fig. 1 is the contour structures schematic diagram of the tester of embodiment 1；
Fig. 2 is the part electrical schematic diagram of the tester of embodiment 1；
Fig. 3 is another part electrical schematic diagram of the tester of embodiment 1.
Detailed description of the invention
(embodiment 1)
See Fig. 1-3, the present embodiment is a kind of tester for testing RCCB, including: AC power circuit 1, DC power-supply circuit 7, phase generating circuit 2, ac leakage regulation circuit 3, phase place display circuit 6, indicator light circuit 5 and time detection circuit 4.
AC power circuit 1 has the first live wire end for constituting load circuit and for constituting the second live wire end of simulation loop of electric leakage, first live wire end and the second live wire end are for being connected with the live wire input of equipment under test 9, and the zero line side of described load circuit is for being connected with the zero line side of equipment under test 9.In the present embodiment, equipment under test 9 is A type RCCB.
Phase generating circuit 2 is for being connected with fire wire output end L2 of equipment under test 9；Phase generating circuit 2 includes control knob circuit, and control knob circuit generates the half-wave rectified current of current lagging voltage 0, the half-wave rectified current of current lagging voltage 90, the half-wave rectified current of current lagging voltage 135 and the half-wave rectified current of the current lagging voltage 0 containing 6mA direct current for controlling phase generating circuit 2 in described simulation loop of electric leakage respectively.
Ac leakage regulation circuit 3 is for controlling the size of current of described simulation loop of electric leakage；Time detection circuit 4 is conducted to the time needed for A type RCCB is threaded off, i.e. movement time for measuring from described simulation loop of electric leakage.
Described phase generating circuit 2 includes: the first half-wave rectifying circuit of current lagging voltage 0, second half-wave rectifying circuit of current lagging voltage 90, 3rd half-wave rectifying circuit of current lagging voltage 135, 6mA direct current generative circuit, and for according to described first half-wave rectifying circuit, the control signal of the second half-wave rectifying circuit and the output of the 3rd half-wave rectifying circuit generates the half-wave rectified current of current lagging voltage 0 in described simulation loop of electric leakage respectively, the half-wave rectified current of current lagging voltage 90, the controllable silicon current control circuit of the half-wave rectified current of the half-wave rectified current of current lagging voltage 135 and the current lagging voltage 0 containing 6mA direct current.
3rd half-wave rectifying circuit of described current lagging voltage 135 includes: the sine wave shaped being made up of transformator T2, diode D5, resistance R3, R4, R5, R6, R7 and operational amplifier IC1A becomes circuit, the charging circuit being made up of resistance R8, electric capacity C5 being connected with the outfan of operational amplifier IC1A, be made up of diode D6, D7 with door；It is used for setting resistance R9 and R10 of the voltage of adjusting relative to current lagging voltage 135, being used for regulating the resistance R11 and potentiometer WR1 of the comparison voltage relative to current lagging voltage 135 of the backward end of operational amplifier IC1B, the outfan of operational amplifier IC1B is for exporting the control signal of current lagging voltage 135.
Resistance R12 is the current-limiting resistance of audion BG3 base stage, audion BG3 and resistance R13 constitutes emitter follower, the control signal of the current lagging voltage 135 on resistance R13 gives audion BG18 by press button SB1, resistance R58, audion BG18 drives opto-coupler chip IC4, resistance R59 is current-limiting resistance, it is ensured that opto-coupler chip IC4 effectively works.Opto-coupler chip IC4 is in order to isolate alternating current 220V and phase generating circuit direct current component, control the turn-on and turn-off of bidirectional triode thyristor BG19, resistance R60, R61, for controlling the G pole input current of bidirectional triode thyristor BG19, make input signal enough trigger bidirectional triode thyristor BG19 conducting.Bidirectional triode thyristor BG19 A, K bis-pole be connected on load with alternating current power supply between, the electric current flowing through load is exactly the half-wave rectified current lagging behind voltage 135.Controlling bidirectional triode thyristor BG19 can control by the residue pulsating current specified in circuit, regulator potentiometer WR3, WR4, WR5 can control leakage current.
When press button SB10 closes, two intermediate contacts of press button SB10 are for the detection of phase generating circuit output waveform.
Described controllable silicon current control circuit includes: the control signal that exports according to described first half-wave rectifying circuit, the second half-wave rectifying circuit and the 3rd half-wave rectifying circuit and the audion BG18 turned on, the opto-coupler chip IC4 that driven by audion BG18, A, K pole of the bidirectional triode thyristor BG19, bidirectional triode thyristor BG19 that are controlled break-make by opto-coupler chip IC4 is connected in described simulation loop of electric leakage.
Described time detection circuit 4 includes: single-chip microcomputer IC6, be connected with the detection of electrical leakage end of single-chip microcomputer IC6 for detecting the leakaging signal detecting circuit whether described simulation loop of electric leakage turns on and the charactron for showing the time being connected with the temporal information outfan of single-chip microcomputer IC6；Single-chip microcomputer IC6 measures according to the electric leakage signal that leakaging signal detecting circuit exports and is conducted to the time needed for A type RCCB is threaded off and by this time of described numeral method from described simulation loop of electric leakage.
Described phase generating circuit 2 connects the phase place display circuit 6 of the half-wave rectified current with the presence of half-wave rectified current or the half-wave rectified current of current lagging voltage 90 or the half-wave rectified current of current lagging voltage 135 or the current lagging voltage 0 containing 6mA direct current for showing described simulation loop of electric leakage current lagging voltage 0.
AC power circuit is supplied electricity to transformator T4, transformator T4 output 180V, 220V, 250V, 380V voltage by 220V 50Hz alternating current power supply and is connected to exchange on output wiring terminal L1, N through band switch SA1.By the gear of adjusting band switch SA1, exchange output wiring terminal L1 and the voltage at N two ends can be changed.The load of transformator T4 is that ac leakage regulates circuit 3.
Ac leakage regulation circuit 3 is exported 26V alternating current by transformator T4, its outfan one end is followed by exchanging output wiring terminal L1 with band switch SA2 series connection, after the other end is connected with ammeter, electric leakage regulation resistance, bidirectional triode thyristor BG19, band switch SA3, it is connected to exchange output wiring terminal L2.
Logic circuit, press button that phase place display circuit 6 is made up of charactron LED1-LED4, diode D11-36, audion BG7-16 form.
When pressing the button switch SB4, current signal trigger triode BG20 turns on, and audion BG20 output signal trigger triode BG7, BG8 turn on, and charactron LED1 shows " A ", and charactron LED2 shows " C ".
When pressing the button switch SB3, charactron LED1, LED4 show " A0 "；Pressing the button switch SB2, charactron LED1, LED3, LED4 show " A90 "；Pressing the button switch SB5, charactron LED1, LED2, LED3, LED4 show " A0-6 ".
Indicator light circuit 5 is made up of transformator T4, commutation diode D42-45, three terminal regulator BG27, RC filter circuit.DC power-supply circuit 7 includes: the 5V DC power-supply circuit powered by transformator T1, transformator T3 the 5V DC power-supply circuit powered, 12V DC power-supply circuit, 6mA direct current generative circuit.
Time detection circuit 4 is made up of press button, commutation diode D46-49, audion BG23-26, resistance, electric capacity C15, photoelectrical coupler IC5, single-chip microcomputer IC6, charactron LED11 etc..
6mA direct current generative circuit is made up of resistance R67,9V aneroid battery Bt, press button SB5, SB6.One end of resistance R67 is connected with the positive pole of 9V aneroid battery U, the other end of resistance R67 is connected with the intermediate contact of press button SB5, the normally opened contact of press button SB5 is connected with normally opened contact, the normally-closed contact of press button SB6,9V dry battery cathode connects the normally opened contact of press button SB6, normally opened contact is connected, the intermediate contact of press button SB6 and direct current output wiring terminal "+" be connected, the intermediate contact SB6-21 of press button SB6 is connected with direct current output "-".
Second half-wave rectifying circuit of current lagging voltage 90 is by resistance R17, R18, R19, R20, R21, R22, R23, R24, R25, R26, R27, R57, R58, R59, R60, R61, electric capacity C6, diode D8, D9, D10, audion BG5, BG18, bidirectional triode thyristor BG19, operational amplifier IC2, opto-coupler chip IC4, potentiometer WR2 are constituted.
First half-wave rectifying circuit of current lagging voltage 0 is by resistance R50, R51, R52, R53, R54, R55, R56, R57, R58, R59, R60, R61, diode D37, audion BG17, BG18, bidirectional triode thyristor BG19, operational amplifier IC3, opto-coupler chip IC4 are constituted.The positive terminal of diode D51 is extremely connected with the e of the audion BG22 in phase place display circuit, the negative pole end of diode D51 is connected with one end of resistance R75, the other end of resistance R75 is extremely connected with the b of audion BG28,2 feet of opto-coupler chip IC7 are extremely connected with the c of audion BG28, and the e pole of audion BG28 is connected with 2 feet of stabilivolt BG21.One end of resistance R74 is connected with 3 feet of stabilivolt BG21, and the 4 of opto-coupler chip IC7,6 feet are connected with press button SB3 intermediate contact SB3-21, normally opened contact SB3-22 respectively.Because there being the half-wave rectified current containing 6mA direct current of current lagging voltage 0 in " the residue pulsating current of regulation ", therefore this part is for realizing in the case of " A0-6 ", it is ensured that the output of the half-wave rectified current of current lagging voltage 0.
Resistance R73, R77 are the current-limiting resistance of opto-coupler chip IC5, resistance R78 is the current-limiting resistance of 1 foot of single-chip microcomputer IC6, electric capacity C15, resistance R79 form peaker, resistance R80, R81, R82, R83, R84, R85, R86, R87 are the current-limiting resistance of each pin of charactron LED11, and resistance R88, R89, R90, R91 are the current-limiting resistance of the b pole of audion BG23, BG24, BG25, BG26.Press button SB17 is testing button, and press button SB18 is SR.
When press button SB17 closes, breaker electrifying, DC current forms a spike through peaker, and 1 foot of input single-chip microcomputer IC6, single-chip microcomputer IC6 starts timing.When circuit breaker trip, opto-coupler chip IC5 dead electricity, 4,6 feet turn off, and 3 feet of single-chip microcomputer IC6 have high level input, and single-chip microcomputer IC6 stopping timing also exports data and shows to charactron LED11.When press button SB18 presses, single-chip microcomputer IC6, charactron LED11 reset.
Above-described embodiment is only for clearly demonstrating example of the present invention, and is not the restriction to embodiments of the present invention.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here without also cannot all of embodiment be given exhaustive.And these spirit belonging to the present invention are extended out obvious change or variation still in protection scope of the present invention among.
Claims (1)
1. the tester being used for testing RCCB, it is characterised in that including: AC power circuit (1), DC power-supply circuit (7), phase generating circuit (2), ac leakage regulation circuit (3), phase place display circuit (6), indicator light circuit (5) and time detection circuit (4)；
AC power circuit (1) has the first live wire end for constituting load circuit and for constituting the second live wire end of simulation loop of electric leakage, first live wire end and the second live wire end are for being connected with the live wire input of equipment under test (9), and the zero line side of described load circuit is for being connected with the zero line side of equipment under test (9)；Described equipment under test is A type RCCB；
Phase generating circuit (2), for being connected with the fire wire output end (L2) of equipment under test (9)；Phase generating circuit (2) includes that control knob circuit, control knob circuit are used for controlling phase generating circuit (2) and generate the half-wave rectified current of current lagging voltage 0, the half-wave rectified current of current lagging voltage 90, the half-wave rectified current of current lagging voltage 135 and the half-wave rectified current of the current lagging voltage 0 containing 6mA direct current in described simulation loop of electric leakage respectively；
Described phase generating circuit (2) including: the first half-wave rectifying circuit of current lagging voltage 0, the second half-wave rectifying circuit of current lagging voltage 90, the 3rd half-wave rectifying circuit of current lagging voltage 135,6mA direct current generative circuit and controllable silicon current control circuit；Described controllable silicon current control circuit generates the half-wave rectified current of current lagging voltage 0, the half-wave rectified current of current lagging voltage 90, the half-wave rectified current of current lagging voltage 135 and the half-wave rectified current of the current lagging voltage 0 containing 6mA direct current according to the control signal that described first half-wave rectifying circuit, the second half-wave rectifying circuit and the 3rd half-wave rectifying circuit export in described simulation loop of electric leakage respectively；
3rd half-wave rectifying circuit of described current lagging voltage 135 includes: sine wave shaped circuit, charging circuit and door, resistance R9, resistance R10, resistance R11, potentiometer WR1 and operational amplifier IC1B；Sine wave shaped electricity routing transformer T2, diode D5, resistance R3, resistance R4, resistance R5, resistance R6, resistance R7 and operational amplifier IC1A are constituted；Charged electrical routing resistance R8 and electric capacity C5 is constituted, and resistance R8 is connected with the outfan of electric capacity C5 with operational amplifier IC1A；It is made up of diode D6 and D7 with door；Resistance R9 and resistance R10 is used for setting the voltage of adjusting relative to current lagging voltage 135；Resistance R11 and potentiometer WR1 is used for regulating the comparison voltage relative to current lagging voltage 135 of the backward end of operational amplifier IC1B；The outfan of operational amplifier IC1B is for exporting the control signal of current lagging voltage 135；
Ac leakage regulation circuit (3), for controlling the size of current of described simulation loop of electric leakage；
Time detection circuit (4), is conducted to the time needed for A type RCCB is threaded off, i.e. movement time for measuring from described simulation loop of electric leakage；
Described time detection circuit (4) including: single-chip microcomputer IC6, be connected with the detection of electrical leakage end of single-chip microcomputer IC6 for detecting the leakaging signal detecting circuit whether described simulation loop of electric leakage turns on and the charactron for showing the time being connected with the temporal information outfan of single-chip microcomputer IC6；Single-chip microcomputer IC6 measures according to the electric leakage signal that leakaging signal detecting circuit exports and is conducted to the time needed for A type RCCB is threaded off and by this time of described numeral method from described simulation loop of electric leakage；
Described controllable silicon current control circuit includes: the control signal that exports according to described first half-wave rectifying circuit, the second half-wave rectifying circuit and the 3rd half-wave rectifying circuit and the audion BG18 turned on, the opto-coupler chip IC4 that driven by audion BG18, A, K pole of the bidirectional triode thyristor BG19, bidirectional triode thyristor BG19 that are controlled break-make by opto-coupler chip IC4 is connected in described simulation loop of electric leakage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610397099.2A CN105891709A (en) | 2012-07-27 | 2012-07-27 | Tester for testing residual current circuit-breaker |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610397099.2A CN105891709A (en) | 2012-07-27 | 2012-07-27 | Tester for testing residual current circuit-breaker |
| CN201210262478.2A CN102759709B (en) | 2012-07-27 | For testing the tester of RCCB |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210262478.2A Division CN102759709B (en) | 2012-07-27 | 2012-07-27 | For testing the tester of RCCB |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105891709A true CN105891709A (en) | 2016-08-24 |
Family
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Family Applications (9)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610393624.3A Withdrawn CN105866676A (en) | 2012-07-27 | 2012-07-27 | Test instrument for testing electric leakage circuit breaker |
| CN201610394808.1A Active CN106124974B (en) | 2012-07-27 | 2012-07-27 | Testing instrument |
| CN201610396536.9A Withdrawn CN106168649A (en) | 2012-07-27 | 2012-07-27 | For testing the tester of RCCB |
| CN201610394803.9A Pending CN106093764A (en) | 2012-07-27 | 2012-07-27 | A kind of tester |
| CN201610393623.9A Withdrawn CN106093763A (en) | 2012-07-27 | 2012-07-27 | Tester |
| CN201610393046.3A Withdrawn CN105866674A (en) | 2012-07-27 | 2012-07-27 | Tester |
| CN201610397099.2A Pending CN105891709A (en) | 2012-07-27 | 2012-07-27 | Tester for testing residual current circuit-breaker |
| CN201610394896.5A Withdrawn CN106168648A (en) | 2012-07-27 | 2012-07-27 | For testing the tester of RCCB |
| CN201610393038.9A Withdrawn CN105866673A (en) | 2012-07-27 | 2012-07-27 | Tester |
Family Applications Before (6)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610393624.3A Withdrawn CN105866676A (en) | 2012-07-27 | 2012-07-27 | Test instrument for testing electric leakage circuit breaker |
| CN201610394808.1A Active CN106124974B (en) | 2012-07-27 | 2012-07-27 | Testing instrument |
| CN201610396536.9A Withdrawn CN106168649A (en) | 2012-07-27 | 2012-07-27 | For testing the tester of RCCB |
| CN201610394803.9A Pending CN106093764A (en) | 2012-07-27 | 2012-07-27 | A kind of tester |
| CN201610393623.9A Withdrawn CN106093763A (en) | 2012-07-27 | 2012-07-27 | Tester |
| CN201610393046.3A Withdrawn CN105866674A (en) | 2012-07-27 | 2012-07-27 | Tester |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610394896.5A Withdrawn CN106168648A (en) | 2012-07-27 | 2012-07-27 | For testing the tester of RCCB |
| CN201610393038.9A Withdrawn CN105866673A (en) | 2012-07-27 | 2012-07-27 | Tester |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108169592B (en) * | 2017-12-15 | 2023-11-24 | 西安智财全技术转移中心有限公司 | Intelligent detection circuit and intelligent detection method |
| CN109270448A (en) * | 2018-10-11 | 2019-01-25 | 上海电器科学研究院 | A kind of breaker residual current acting characteristic test system |
| CN110658369A (en) * | 2019-09-24 | 2020-01-07 | 深圳供电局有限公司 | Residual current simulation generation device and residual current action protection system |
| CN110658367A (en) * | 2019-09-24 | 2020-01-07 | 深圳供电局有限公司 | Residual current simulation generation device and residual current action protection system |
| CN110687328A (en) * | 2019-09-24 | 2020-01-14 | 深圳供电局有限公司 | Residual current simulation generation device and residual current action protection system |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB0226111D0 (en) * | 2002-11-08 | 2002-12-18 | Delta Electrical Ltd | Residual current devices |
| CN100474729C (en) * | 2005-12-22 | 2009-04-01 | 佛山市顺德区顺达电脑厂有限公司 | Real time monitoring system for static detection |
| CN100547507C (en) * | 2007-09-05 | 2009-10-07 | 南京华夏电器有限公司 | Fast heating intelligent leadless welding table controller and control method thereof |
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2012
- 2012-07-27 CN CN201610393624.3A patent/CN105866676A/en not_active Withdrawn
- 2012-07-27 CN CN201610394808.1A patent/CN106124974B/en active Active
- 2012-07-27 CN CN201610396536.9A patent/CN106168649A/en not_active Withdrawn
- 2012-07-27 CN CN201610394803.9A patent/CN106093764A/en active Pending
- 2012-07-27 CN CN201610393623.9A patent/CN106093763A/en not_active Withdrawn
- 2012-07-27 CN CN201610393046.3A patent/CN105866674A/en not_active Withdrawn
- 2012-07-27 CN CN201610397099.2A patent/CN105891709A/en active Pending
- 2012-07-27 CN CN201610394896.5A patent/CN106168648A/en not_active Withdrawn
- 2012-07-27 CN CN201610393038.9A patent/CN105866673A/en not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| CN106093764A (en) | 2016-11-09 |
| CN106093763A (en) | 2016-11-09 |
| CN106124974B (en) | 2020-07-10 |
| CN105866674A (en) | 2016-08-17 |
| CN105866673A (en) | 2016-08-17 |
| CN106168648A (en) | 2016-11-30 |
| CN102759709A (en) | 2012-10-31 |
| CN106168649A (en) | 2016-11-30 |
| CN105866676A (en) | 2016-08-17 |
| CN106124974A (en) | 2016-11-16 |
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Application publication date: 20160824 |