CN2234623Y - Electric leakage protector detector - Google Patents

Electric leakage protector detector Download PDF

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Publication number
CN2234623Y
CN2234623Y CN 95246442 CN95246442U CN2234623Y CN 2234623 Y CN2234623 Y CN 2234623Y CN 95246442 CN95246442 CN 95246442 CN 95246442 U CN95246442 U CN 95246442U CN 2234623 Y CN2234623 Y CN 2234623Y
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CN
China
Prior art keywords
resistance
connect
switch
test circuit
triode
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Expired - Fee Related
Application number
CN 95246442
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Chinese (zh)
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徐嘉龙
金明德
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SHANGHAI JIAAN ELECTRIC APPLIANCES FACTORY
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SHANGHAI JIAAN ELECTRIC APPLIANCES FACTORY
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Priority to CN 95246442 priority Critical patent/CN2234623Y/en
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Publication of CN2234623Y publication Critical patent/CN2234623Y/en
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Abstract

The utility model relates to an electric leakage protector detector, composed of a shell body, a probe which is arranged outside the shell body and is connected with the inner part line of the shell body, each indicating light, a switch, a voltage meter, a buzzer and a testing circuit which is arranged in the shell body. The utility model is characterized in that the testing circuit comprises a real line testing circuit and an induction testing circuit. The utility model can conduct on-line detection for leakage protectors. The utility model can be used for checking the on-off of line conductive lines and checking alignment. The utility model has also the functions of induction electricity verification and sound prompt. The utility model has the advantages of small volume, complete function, and convenient operation. The utility model is a practical detection tool.

Description

The earth leakage protective device detector
The utility model relates to a kind of multifunctional safe electricity consumption detecting instrument of online detection earth leakage protective device.
At present; the more of earth leakage protective device installed in the electric wiring and electric equipment aspect; but owing to multiple reason; for example: the specification of the product quality problem of earth leakage protective device, the correctness that circuit is installed, earth leakage protective device is selected for use unreasonable etc.; the capital directly has influence on the creepage protection function of earth leakage protective device, even the accident etc. that causes casualties.
The purpose of this utility model just provide a kind of can online detection earth leakage protective device inherent quality, check whether electric wiring and electric equipment are subjected to the protection of earth leakage protective device really, also can respond to the multi-tester of electrical verification and detection line conducting.
The purpose of this utility model is achieved in that a kind of earth leakage protective device detector, by housing, be located at outer probe, each pilot lamp, switch, voltage table, the hummer that is connected with the enclosure interior circuit of housing and the test circuit that is located in the housing constitutes, described test circuit comprises the solid line test circuit and responds to test circuit; Described solid line test circuit is made of simulated action current circuit, delay circuit; Described simulated action current circuit comprises: four K switch in parallel 2～K 5And be connected with switch by resistance R 1～R 8The resistor of forming, the R in the described resistor 1, R 2, R 4, R 6, R 8Be connected in series resistance R mutually 2The other end and K switch 2Central contact connect resistance R 8The other end be connected with an end of probe; Described resistance R 3One end and K switch 3Central contact connect, the other end is connected on resistance R 1With R 4Between; Described resistance R 5An end and K switch 4Central contact connect, the other end is connected on resistance R 4With R 6Between; Described resistance R 7One terminate at K switch 5A central contact on, the other end is connected on resistance R 6With R 8Between; Described delay circuit is by capacitor C 1, resistance R 11, triode BG 1, relay J forms capacitor C 1An end and resistance R 11Serial connection, the other end and K switch 2Normal open point connect resistance R 11The other end and triode BG 1Base stage connect; Relay J one end and triode BG 1Collector connects, the other end and K switch 2Normal open point connect triode BG 1Grounded emitter; Described induction test circuit comprises sensing chip, the amplifier section that is connected with sensing chip, shaping unit, promotion part and power amplifier part, and described amplifier section is by resistance R 11～R 14, capacitor C 2, not gate F 1Form resistance R 11～R 14Be linked in sequence capacitor C 2Be connected resistance R 11With R 12Between tie point and the ground, not gate F 1Input end connect resistance R 11, output terminal is connected resistance R 12With R 13Tie point on; Described shaping unit is not gate F 2, Sheffer stroke gate F 1Output terminal connect; Described promotion part is by not gate F 3Constitute Sheffer stroke gate F 2Output terminal connect; Described power amplifier part is by triode BG 3, resistance R 15, capacitor C 3Constitute triode BG 3Base stage by series resistor R 15With F 3Output terminal connect.
Because the utility model has adopted above structure; quality that can online detection earth leakage protective device quality; check whether electric wiring and electric equipment are subjected to the protection of earth leakage protective device really; measure electrical network phase line voltage by voltage table; measure phase line, the neutral line, whether attaching is reliable for ground wire; measure the electrical leakage voltage of electric wiring and electric equipment, check the lead break-make and check line etc. to have functions such as induction electrical verification and sound prompting simultaneously.
Concrete structure of the present utility model is further provided by following embodiment and accompanying drawing.
Accompanying drawing 1 is the complete machine front elevation of the utility model embodiment;
Accompanying drawing 2 is complete machine side views of the foregoing description;
Accompanying drawing 3 is circuit block diagrams of the foregoing description;
Accompanying drawing 4 is electrical schematic diagrams of the foregoing description induction electrical verification test circuit;
Accompanying drawing 5 is electrical schematic diagrams of the foregoing description solid line test circuit.
See also figure:
The utility model embodiment makes pocket portable.Form by housing 1, probe 2, toggle switch 3, voltage table 4, current detecting knob 5, electric leakage action indicator 6, break-make pilot lamp 7, induction electrical verification position 8, earthing pole and test bar jack 9 and enclosure interior test circuit.
When toggle switch 3 placed the Y position, detector was in induction electrical verification state, can contactlessly identify the phase line and the neutral line, and the start prompting and the electrical verification alarm sound are arranged.Ask for an interview Fig. 4.The signal that receives from sensing chip is through resistance R 11, R 12, R 13, R 14, capacitor C 2, not gate F 1The amplifier of forming amplifies.In this amplifier, resistance R 11One terminate at not gate F 1Input end, its other end and resistance R 12And capacitor C 2Parallel connected end connect capacitor C 2Other end ground connection; Resistance R 12The other end both be connected on not gate F 1Output terminal again with R 13Connect R 13With R 14Polyphone ground connection.The output terminal of this amplifier with and the not gate F that uses as shaping 2Input end connects, F 2Output terminal with promote a level F 3Input end connect F 3Output terminal connect the power amplifier level, the power amplifier level is by triode BG 3, resistance R 15, capacitor C 3Form resistance R 15Be connected on BG 3Base stage as BG 3Biasing resistor, capacitor C 3Be connected on BG 3Collector.BG 3Collector also be connected in series a light emitting diode D 2With hummer Y 2When sensing chip was sensed electric signal, because the work of foregoing circuit, signal promoted BG after shaping is amplified 3Conducting makes hummer Y 2Sounding alarm and luminotron are luminous.Not gate F in the present embodiment 1, F 2, F 3Take from three not gates among the integrated circuit CD4069.Also be provided with one by triode BG in the above-mentioned induction test circuit 2, voltage stabilizing diode D 3And resistance R 16The source of stable pressure of forming provides stable working power of each not gate among the integrated circuit CD4069.Described BG 2Base stage be connected in series a voltage stabilizing diode D 3, BG 2Base stage and collector between connect a resistance R 16, BG 2Emitter Sheffer stroke gate F 3Connect.Induction is accepted highly sensitive, has start prompting and electrical verification alarm sound function simultaneously.
When toggle switch 3 was allocated to news sound position, detector was in and detects the lead break-make and check to line states, by Y 1, K switch 2-K 5And resistance R 8Constitute the loop and detect lead on-off circuit A.K switch 2～K 5Parallel connection, its output terminal and R 8Series connection is connected with probe.
Whether when toggle switch placed the T position, detector can be made the usefulness of the simulation leakage current action of earth leakage protective device, detect earth leakage protective device and move, and directly judged its quality quality.Simulated action current circuit B is by K switch 2-K 5, resistance R 1, R 2, R 3, R 6, R 7, R 8And delay circuit constitutes.K 2-K 5Order is in parallel mutually, resistance R 2An end and K switch 2The center connect R 2With R 1, R 4, R 6, R 8The order polyphone, R 8Be connected with probe.K 3Central point connect R 3, R 3The other end and R 1And R 4Tie point connect; K 4Central point and R 5Connect R 5The other end and R 4And R 6Tie point connect; K 5Central point and R 7Connect R 7The other end and R 6, R 8Tie point connect.Delay circuit C is by capacitor C 1, resistance R 4, triode BG 1Form with relay J; Relay J is connected on BG 1Collector and K 2A normal open point between; R 11And C 1Be serially connected with triode BG 1Base stage and K 2Between the normal open point.The output terminal of simulated action current circuit is connected to a LED 1With one with luminotron LED 1The current-limiting resistance R of serial connection 9
The input end of test circuit is provided with selector switch K 1, described K switch 1The Y end on the serial connection one hummer Y 1, described hummer Y 1Also with K switch 2～K 5Normal open point connect.
The input end of test circuit be connected to one with the contact of relay J and the luminotron LED that connects 2With it the serial connection resistance R 10With diode D 1
Also can utilize diode D during detection 1, resistance R 10, LED 2Whether the loop detection alternating circuit of forming with voltage table 4 has electricity and indicates electric weight to use.By resistance R 9And LED 1Forming the indication of direct current delay working circuit uses.
When the utility model is done to detect the quality of earth leakage protective device, can adopt direct detection and route protection to survey inspection and use:
1. directly detect: earlier the earthing pole plug is inserted detector earth jack 9, earthing pole is linked to each other with the metal of reliable ground again, with the phase line of probe contact earth leakage protective device load-side, during contact, the LED2 pilot lamp is bright then; Voltage table should have the 220V indication, as LED 2Pilot lamp does not work, and voltage table does not have indication, and what probe contact then was described is not phase line or contacts bad.
(mA) value button of selecting detector to adapt according to earth leakage protective device rated residual operating current (mA) value, and maintenance down state, earth leakage protective device should move, LED 1Pilot lamp is bright, simultaneously LED 2Pilot lamp goes out, and voltage table is designated as zero, and expression detects to be passed through.After pressing the button, the earth leakage protective device LED that is failure to actuate 1, LED 2Not not going out of pilot lamp, voltage table (220V) indication is constant, shows that then detection do not pass through, and the energising protector is malfunctioning, should give transposing.
2. route protection detects: route protection detects with direct detecting method roughly the same, and difference is electric wiring, supply socket or the electric equipment service entrance switch place that the probe contact is protected by earth leakage protective device.With the ground wire of earthing pole contact for the outlet ground hole 9 with ground protection or electric wiring and electric equipment, detection method is with directly detection is identical.
The utility model makes to measure phase line voltage V: toggle switch is allocated to " T " position, earthing pole is inserted detector earth jack 9 again, earthing pole contacts with the metal or the power supply neutral line of reliable ground; Contact phase line with probe; LED 2Pilot lamp is bright, and the voltage table indicated value is the electrical network phase voltage value.As LED 2Pilot lamp does not work, voltage table first finger indicating value, and then this line is the neutral line.
When the utility model is done induction electrical verification measurement: toggle switch is pushed into " Y " position, will responds to electrical verification again and receive the close power frequency electric field in position and reach certain field intensity, promptly send greater than the continuous alarm of 65db and ring, but and measuring voltage value.Breaking away from the alarm of this power frequency electric field rings and promptly stops.The electrical verification distance is along with tested line voltage difference, and response characteristic: 220V is 100mm in gradient ... 10KV is 1200mm.
Conduct a survey lead break-make or to line of the utility model: toggle switch is allocated to news rings the position, earthing pole inserts detector earth jack 9, then with probe and earthing pole difference contact wire two ends, during contact, if hummer is rung, show that then lead is not disconnected or correct to line.Do not ring if hummer sends, show that then lead is obstructed or incorrect to line.
Simultaneously, under the state not according to dynamic simulated leakage current button, contact two phase lines respectively, can detect the following alternating voltage of 380V with probe and earthing pole.
This detector can be measured by specified leakage current value of choosing of the earth leakage protective device of different size, and can be in 300mA combination in any.

Claims (6)

1. earth leakage protective device detector by housing, be located at outer probe, each pilot lamp, switch, voltage table, the hummer that is connected with the enclosure interior circuit of housing and the test circuit that is located in the housing constitutes, is characterized in that:
Described test circuit comprises solid line test circuit and induction test circuit;
Described solid line test circuit is made of simulated action current circuit, delay circuit; Described simulated action current circuit comprises: four K switch that order is in parallel 2～K 5And be connected with switch by resistance R 1～R 8The resistor of forming, the R in the described resistor 1, R 2, R 4, R 6, R 8Be connected in series resistance R mutually 2The other end and K switch 2Central contact connect resistance R 8The other end be connected with an end of probe; Described resistance R 3One end and K switch 3A central contact link to each other, the other end is connected on resistance R 1With R 4Between; Described resistance R 5An end and K switch 4Central contact connect, the other end is connected on resistance R 4With R 6Between; Described resistance R 7One terminate at K switch 5A central contact on, the other end is connected on resistance R 6With R 8Between;
Described delay circuit is by capacitor C 1, resistance R 11, triode BG 1, relay J forms capacitor C 1An end and resistance R 11Serial connection, the other end and K switch 2Normal open point connect resistance R 11The other end and triode BG 1Base stage connect; Relay J one end and triode BG 1Collector connect the other end and K switch 2Normal open point connect BG 1Grounded emitter;
Described induction test circuit comprises amplifier section, shaping unit, promotion part and the power amplifier part that sensing chip is connected with sensing chip, and described amplifier section is by resistance R 11～R 14, capacitor C 2, not gate F 1Form resistance R 11～R 14Be linked in sequence capacitor C 2Be connected resistance R 11With R 12Tie point and ground between, not gate F 1Input end connect resistance R 11, output terminal connects resistance R 12With R 13Tie point;
Described shaping unit is not gate F 2, Sheffer stroke gate F 1Output terminal connect;
Described promotion part is by not gate F 3Constitute Sheffer stroke gate F 1Output terminal connect;
Described power amplifier part is by triode BG 3, resistance R 15, capacitor C 3Constitute triode BG 3Ground level by series resistor R 15With F 3Output terminal connect.
2. earth leakage protective device detector according to claim 1 is characterized in that: be provided with one by triode BG in the described induction test circuit 2, voltage stabilizing diode D 3And resistance R 16The source of stable pressure of forming, described BG 2Base stage be connected in series a voltage stabilizing diode D 3, BG 2Base stage and collector between connect a resistance R 16, BG 2Emitter Sheffer stroke gate F 3Connect.
3. earth leakage protective device detector according to claim 1 is characterized in that described power amplifier level triode BG 3The collector string one light emitting diode D is arranged 2With-hummer Y 2
4. earth leakage protective device detector according to claim 1 is characterized in that the output terminal of the simulated action current circuit in the described solid line test circuit is connected to a LED 1With one with luminotron LED 1The current-limiting resistance R of serial connection 9
5. earth leakage protective device detector according to claim 1, the input end that it is characterized in that described solid line test circuit be connected to one with the contact of relay J and the luminotron LED that connects 2With it the serial connection resistance R 10With diode D 1
6. earth leakage protective device detector according to claim 1 is characterized in that the input end of described test circuit is provided with selection Test Switchboard K 1, described K switch 1The Y end on the serial connection one hummer Y 1, described hummer Y 1Also with K switch 2～K 5Normal open point connect.
CN 95246442 1995-11-14 1995-11-14 Electric leakage protector detector Expired - Fee Related CN2234623Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 95246442 CN2234623Y (en) 1995-11-14 1995-11-14 Electric leakage protector detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 95246442 CN2234623Y (en) 1995-11-14 1995-11-14 Electric leakage protector detector

Publications (1)

Publication Number Publication Date
CN2234623Y true CN2234623Y (en) 1996-09-04

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Application Number Title Priority Date Filing Date
CN 95246442 Expired - Fee Related CN2234623Y (en) 1995-11-14 1995-11-14 Electric leakage protector detector

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102062823A (en) * 2009-11-17 2011-05-18 张朝 Electric leakage protection device tester
CN103837733A (en) * 2012-11-27 2014-06-04 深圳市海洋王照明工程有限公司 Detection circuit
CN105044510A (en) * 2014-07-18 2015-11-11 国家电网公司 Multi-channel intelligent online leakage protection uninterruptible test device with simple wiring and rational structure
CN106771532A (en) * 2017-02-15 2017-05-31 许良炎 A kind of earth leakage protective device transient current method of testing and test circuit
CN110726953A (en) * 2019-11-30 2020-01-24 苏州司巴克自动化设备股份有限公司 Conduction testing device of leakage protector
CN111833574A (en) * 2020-07-14 2020-10-27 广东格美淇电器有限公司 Voltage induction type alarm device and alarm method thereof
KR20210146561A (en) * 2020-05-27 2021-12-06 한국전력공사 Voltage detector of vacuum interrupter switchgears

Cited By (41)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102062823A (en) * 2009-11-17 2011-05-18 张朝 Electric leakage protection device tester
CN102062823B (en) * 2009-11-17 2013-07-31 张朝 Electric leakage protection device tester
CN103837733A (en) * 2012-11-27 2014-06-04 深圳市海洋王照明工程有限公司 Detection circuit
CN106291054A (en) * 2014-07-18 2017-01-04 江苏省电力公司南通供电公司 A kind of multi-way intelligence leaks guarantor's uninterrupted power test device online
CN106324386A (en) * 2014-07-18 2017-01-11 江苏省电力公司南通供电公司 Testing method for multipath intelligent on-line residual current operated protective device power cut free testing device
CN106019036A (en) * 2014-07-18 2016-10-12 江苏省电力公司南通供电公司 Testing method of intelligent online residual current device outage-free testing device
CN106019032A (en) * 2014-07-18 2016-10-12 江苏省电力公司南通供电公司 Testing method of intelligent online residual current protector uninterrupted power supply testing device achieving simple wiring
CN106019035A (en) * 2014-07-18 2016-10-12 江苏省电力公司南通供电公司 Multi-way intelligent on-line leakage protector uninterrupted testing device for improving leakage protector integrity
CN106019141A (en) * 2014-07-18 2016-10-12 江苏省电力公司南通供电公司 Testing method of intelligent online residual current protector uninterrupted power supply testing device with reasonable structure
CN106019031A (en) * 2014-07-18 2016-10-12 江苏省电力公司南通供电公司 Testing method of multi-way intelligent online leakage protection not-covered no-power-outage testing device with simple wiring
CN106019034A (en) * 2014-07-18 2016-10-12 江苏省电力公司南通供电公司 Multi-way intelligent online leakage protection non-power-outage testing device capable of achieving multi-way respective testing
CN106291346A (en) * 2014-07-18 2017-01-04 江苏省电力公司南通供电公司 A kind of multi-way intelligence improving power supply reliability leaks guarantor's uninterrupted power test device online
CN106019142A (en) * 2014-07-18 2016-10-12 江苏省电力公司南通供电公司 Multi-way intelligent online leakage protection non-power-outage testing device with reasonable structure
CN106019029A (en) * 2014-07-18 2016-10-12 江苏省电力公司南通供电公司 Multi-way online leakage protection non-power-outage testing device with reasonable structure and simple wiring
CN106019143A (en) * 2014-07-18 2016-10-12 江苏省电力公司南通供电公司 Multi-channel intelligent online residual current protector uninterrupted power supply testing device with reasonable and simple structure
CN106019038A (en) * 2014-07-18 2016-10-12 江苏省电力公司南通供电公司 Multi-channel intelligent online residual current protector uninterrupted power supply testing device achieving simple wiring
CN106019030A (en) * 2014-07-18 2016-10-12 江苏省电力公司南通供电公司 Testing method of intelligent online leakage protector non-outage testing device
CN106019033A (en) * 2014-07-18 2016-10-12 江苏省电力公司南通供电公司 Testing method of multi-path intelligent online leakage protection non-outage testing device
CN106019037A (en) * 2014-07-18 2016-10-12 江苏省电力公司南通供电公司 Testing method of reliable-power-supply intelligent online leakage-protector poweroff-free testing device
CN106054007A (en) * 2014-07-18 2016-10-26 江苏省电力公司南通供电公司 Multi-channel test method of multichannel intelligent on-line leakage-protection uninterrupted power test device
CN105044510A (en) * 2014-07-18 2015-11-11 国家电网公司 Multi-channel intelligent online leakage protection uninterruptible test device with simple wiring and rational structure
CN106019144A (en) * 2014-07-18 2016-10-12 江苏省电力公司南通供电公司 Multi-channel intelligent online residual current protector uninterrupted power supply testing device with reasonable structure
CN106291052A (en) * 2014-07-18 2017-01-04 江苏省电力公司南通供电公司 A kind of can leak guarantor's uninterrupted power test device online by the multi-way intelligence tested respectively of multichannel
CN106291055A (en) * 2014-07-18 2017-01-04 江苏省电力公司南通供电公司 A kind of multi-way intelligence leaks the multi-channel test method protecting uninterrupted power test device online
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CN105093009A (en) * 2014-07-18 2015-11-25 国家电网公司 Multi-path intelligent on-line leakage protection uninterruptible-power-supply testing apparatus capable of improving power supply reliability
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CN106771532A (en) * 2017-02-15 2017-05-31 许良炎 A kind of earth leakage protective device transient current method of testing and test circuit
CN106771532B (en) * 2017-02-15 2023-08-22 许良炎 Method and circuit for testing instantaneous current of leakage protector
CN110726953A (en) * 2019-11-30 2020-01-24 苏州司巴克自动化设备股份有限公司 Conduction testing device of leakage protector
KR20210146561A (en) * 2020-05-27 2021-12-06 한국전력공사 Voltage detector of vacuum interrupter switchgears
KR102411742B1 (en) * 2020-05-27 2022-06-23 한국전력공사 Voltage detector of vacuum interrupter switchgears
CN111833574A (en) * 2020-07-14 2020-10-27 广东格美淇电器有限公司 Voltage induction type alarm device and alarm method thereof

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