CN105891639B - It is a kind of instruction earth leakage protective device experiment peripheral control circuits, test method - Google Patents
It is a kind of instruction earth leakage protective device experiment peripheral control circuits, test method Download PDFInfo
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- CN105891639B CN105891639B CN201610254558.1A CN201610254558A CN105891639B CN 105891639 B CN105891639 B CN 105891639B CN 201610254558 A CN201610254558 A CN 201610254558A CN 105891639 B CN105891639 B CN 105891639B
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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
Abstract
The present invention provides a kind of peripheral control circuits of instruction earth leakage protective device experiment, test methods, include the following steps：（1）Press experiment start button；（2）The short circuit earth leakage protective device in the major loop of peripheral control circuits；（3）Circuit for electric leakage protector is isolated in the major loop of peripheral control circuits；（4）Carry out earth leakage protective device experiment；（5）After the test, operation start button is pressed；（6）Isolated failure of the major loop to circuit for electric leakage protector；（7）Earth leakage protective device restores normal operating condition, off-test.Realize that the peripheral control circuits needed for this method include earth leakage protective device, contactor, intermediate relay, the time relay.Present invention offer scheme operating procedure is simple, securely and reliably, of low cost, ensure that the safety and power supply reliability of user equipment, substantially increases the working efficiency of staff.
Description
Technical field
The invention belongs to earth leakage protective device technical fields, and in particular to a kind of peripheral control of instruction earth leakage protective device experiment
Circuit, test method.
Background technology
Currently, in terms of the technological core of earth leakage protective device is mainly reflected in its perfect in shape and function and in terms of realization method.From work(
It can improve for aspect, earth leakage protective device can be detected by voltage, electric current simultaneously determines whether that there are people, objects to be grounded feelings
Condition, to determine whether earth leakage protective device correctly acts；For in terms of the realization method, earth leakage protective device is fairly simple from starting
Relay mode realize, gradually develop into and realization method be used as by microcontroller, DSP, ARM and peripheral circuit etc..
But there is no make further investigation to earth leakage protective device experiment for current techniques core.Existing earth leakage protective device
Experiment can not solve two key problems, i.e.,：（1）Experiment process needs to increase test pulse or setting examination on earth leakage protective device
Galvanoscope, it is larger to customer impact, can damage user equipment under serious conditions, equipment especially sensitive to harmonic wave, easily by
Damage；（2）Earth leakage protective device experiment process needs to have a power failure to user in short-term, can not ensure the reliability of power supply, influence to use
The normal electricity consumption at family.
Therefore it provides a kind of peripheral control circuits of instruction earth leakage protective device experiment, test method, to solve the above problems
It is very necessary.
Invention content
It is an object of the invention to solve the fragile equipment of above-mentioned test current existing in the prior art, power supply reliability
It the problems such as cannot ensure, a kind of peripheral control circuits of instruction earth leakage protective device experiment, test method, peripheral control electricity are provided
Road is mainly made of contactor and relay.
The present invention is achieved by the following technical solutions：
A method of it is indicated to start earth leakage protective device experiment with peripheral control circuits, it is characterised in that：Including walking as follows
Suddenly：（1）Press experiment start button；（2）The short circuit earth leakage protective device in the major loop of peripheral control circuits；（3）It contains outside
Circuit for electric leakage protector is isolated in the major loop of circuit processed；（4）Carry out earth leakage protective device experiment；（5）After the test,
Press operation start button；（6）Isolated failure of the major loop to circuit for electric leakage protector；（7）Earth leakage protective device restores normal fortune
Row state, off-test.
A kind of peripheral control circuits of instruction earth leakage protective device experiment, including major loop LA and control loop LB, the master
Circuit is equipped with earth leakage protective device LD, it is characterised in that：The earth leakage protective device peripheral control circuits further include contactor KM1,
KM2, KM3, intermediate relay KA1-KA7, time relay KT1-KT6, experiment start button SY, operation start button YX, examination
Test license indicator light LSY and normal operating condition indicator light LYX；The major loop LA include by contactor KM2 normally-closed contacts,
The series arm of earth leakage protective device LD, contactor KM3 normally-closed contacts composition, and the contactor that is connected in parallel with the series arm
KM1 normally opened contacts；
The control loop LB is made of the branch L1-L10 being connected in parallel, and the branch L1 is opened by the experiment being connected in series with
Dynamic button SY, intermediate relay KA1 coils, KA2 coils, KA3 coils and time relay KT4 normally-closed contacts composition；The examination
It tests start button SY and is connected in parallel KA1 normally opened contacts；The branch L2 be the intermediate relay KA2 normally opened contacts that are connected in series with and
Contactor KM1 coils；The branch L3 is the intermediate relay KA3 normally opened contacts being connected in series with and time relay KT1 coils；
The branch L4 is the time relay KT1 normally opened contacts being connected in series with, contactor KM2 coils, KM3 coils, the time relay
KT2 coils and time relay KT3 normally-closed contacts；The branch L5 be the time relay KT2 normally opened contacts that are connected in series with and
Experiment license indicator light LSY；The branch L6 is the operation start button YX, intermediate relay KA4 coils, KA5 being connected in series with
Coil, KA6 coils, KA7 coils and time relay KT5 normally-closed contacts；The operation start button YX be connected in parallel it is intermediate after
Electric appliance KA4 normally opened contacts；The branch L7 is the intermediate relay KA5 normally opened contacts being connected in series with and time relay KT4 lines
Circle；The branch L8 is the intermediate relay KA6 normally opened contacts being connected in series with and time relay KT5 coils；The branch L9
For the intermediate relay KA7 normally opened contacts and time relay KT6 coils being connected in series with；The branch L9 is connecing of being connected in series with
Tentaculum KM1 normally-closed contacts, KM2 normally-closed contacts, KM3 normally-closed contacts and normal operating condition indicator light LYX.
Preferably, the delay duration of the described time relay KT1, KT2, KT3 are 2s.
Preferably, the delay duration of the time relay KT4 is 4s.
Preferably, the delay duration of the time relay KT5 is 6s.
Preferably, the delay duration error of the time relay KT1-KT5 is not more than 0.5s.
Preferably, the time relay KT1-KT5 is air damp type time relay of sexual valence.The air damp type time
Relay construction is simple, cheap, and reference time delay is big.
Compared with prior art, the beneficial effects of the invention are as follows：
A kind of peripheral control circuits of instruction earth leakage protective device experiment provided by the invention, test method, by electric leakage
Protector circuit carries out the modes such as short circuit, isolation so that when staff tests it, it is not required to have a power failure in short-term, without
Consider influence of the experiment to user, the electrical equipment of user will not be damage；After the test, earth leakage protective device can be rapid extensive
Multiple normal operating condition, this method is easy to operate, securely and reliably, greatly improves the working efficiency of staff, also ensures
The normal electricity consumption of user.It, can be completely isolated in the peripheral control circuits provided by the present invention for realizing the above method
Earth leakage protective device so that reduce impact of the experiment process to user；Entire experiment process is improved without having a power failure to user
The reliability of power supply；Entire peripheral control circuits are mainly made of contactor and relay, of low cost.
In addition, the principle of the invention is reliable, step is simple, has very extensive application prospect.
It can be seen that compared with prior art, the present invention with substantive distinguishing features outstanding and significantly improving, implementation
Advantageous effect be also obvious.
Description of the drawings
Fig. 1 is a kind of peripheral control circuits major loop LA principle schematics provided by the invention.
Fig. 2 is a kind of peripheral control circuits control loop LB principle schematics provided by the invention.
Specific implementation mode
Present invention is further described in detail below in conjunction with the accompanying drawings：
A method of it is indicated to start earth leakage protective device experiment with peripheral control circuits, be included the following steps：（1）Press examination
Test start button；（2）Short circuit earth leakage protective device；（3）Circuit for electric leakage protector is isolated；（4）Carry out earth leakage protective device examination
It tests；（5）After the test, operation start button is pressed；（6）To the isolated failure of circuit for electric leakage protector；（7）Earth leakage protective device
Restore normal operating condition, off-test.
As shown in Fig. 1 to 2, a kind of peripheral control circuits of instruction earth leakage protective device experiment, including major loop LA and control
Circuit LB, the major loop are equipped with earth leakage protective device LD, and the earth leakage protective device peripheral control circuits further include contactor
KM1, KM2, KM3, intermediate relay KA1-KA7, time relay KT1-KT6, experiment start button SY, operation start button
YX, experiment license indicator light LSY and normal operating condition indicator light LYX；The major loop LA includes normally closed by contactor KM2
The series arm that contact, earth leakage protective device LD, contactor KM3 normally-closed contacts form, and be connected in parallel with the series arm
Contactor KM1 normally opened contacts；
The control loop LB is made of the branch L1-L10 being connected in parallel, and the branch L1 is opened by the experiment being connected in series with
Dynamic button SY, intermediate relay KA1 coils, KA2 coils, KA3 coils and time relay KT4 normally-closed contacts composition；The examination
It tests start button SY and is connected in parallel KA1 normally opened contacts；The branch L2 be the intermediate relay KA2 normally opened contacts that are connected in series with and
Contactor KM1 coils；The branch L3 is the intermediate relay KA3 normally opened contacts being connected in series with and time relay KT1 coils；
The branch L4 is the time relay KT1 normally opened contacts being connected in series with, contactor KM2 coils, KM3 coils, the time relay
KT2 coils and time relay KT3 normally-closed contacts；The branch L5 be the time relay KT2 normally opened contacts that are connected in series with and
Experiment license indicator light LSY；The branch L6 is the operation start button YX, intermediate relay KA4 coils, KA5 being connected in series with
Coil, KA6 coils, KA7 coils and time relay KT5 normally-closed contacts；The operation start button YX be connected in parallel it is intermediate after
Electric appliance KA4 normally opened contacts；The branch L7 is the intermediate relay KA5 normally opened contacts being connected in series with and time relay KT4 lines
Circle；The branch L8 is the intermediate relay KA6 normally opened contacts being connected in series with and time relay KT5 coils；The branch L9
For the intermediate relay KA7 normally opened contacts and time relay KT6 coils being connected in series with；The branch L9 is connecing of being connected in series with
Tentaculum KM1 normally-closed contacts, KM2 normally-closed contacts, KM3 normally-closed contacts and normal operating condition indicator light LYX.
In the present embodiment, the delay duration of the described time relay KT1, KT2, KT3 are 2s.
In the present embodiment, the delay duration of the time relay KT4 is 4s.
In the present embodiment, the delay duration of the time relay KT5 is 6s.
Preferably, the delay duration error of the time relay KT1-KT5 is not more than 0.5s.
In the present embodiment, the time relay KT1-KT5 is air damp type time relay of sexual valence.Air damp type
The time relay is simple in structure, cheap, and reference time delay is big.
When using a kind of peripheral control circuits that instruction earth leakage protective device is tested provided by the invention, carried in conjunction with the present invention
The method of confession, specifically used steps are as follows：（1）Press the experiment start button SY of control loop LB, intermediate relay KA1 lines
Circle, KA2 coils, KA3 coils simultaneously turn on, and KA1 normally opened contacts are closed；（2）Intermediate relay KA2 normally opened contacts are closed, contact
Device KM1 coils are connected, and contactor KM1 normally opened contacts are closed in major loop LA, and earth leakage protective device LD is shorted at this time, Yong Hushe
The standby electric current overwhelming majority passes through contactor KM1；（3）Intermediate relay KA3 normally opened contacts are closed, and time relay KT1 conductings are prolonged
When 2s conducting contact device KM2 coils, KM3 coils, time relay KT2 coils, contactor KM2 is normally closed in major loop LA at this time touches
Point, KM3 normally-closed contacts disconnect, and realize earth leakage protective device isolation；（4）Time relay KT2 conduction tests after the 2s that is delayed are permitted
It may indicate that lamp LSY, prompt testing crew that can test earth leakage protective device at this time, without considering the influence to user；（5）
Earth leakage protective device is carried out after the test to resume operation operation, presses run start button YX, intermediate relay KA4-KA7 first
Coil simultaneously turns on, and intermediate relay KA4 normally opened contacts are closed；（6）Intermediate relay KA5 normally opened contacts are closed, time relay
Device KT3 coils are connected, the normally-closed contact of delay 2s turn-off time relays KT3, contactor KM2 coils, KM3 coil losing electricities,
Contactor KM2 normally-closed contacts, KM3 normally-closed contacts are closed on major loop LA, earth leakage protective device isolated failure；（7）Intermediate relay
After device KA6 normally opened contacts are closed, time relay KT4 coils conducting, delay 4s disconnects KT4 normally-closed contacts, intermediate relay KA1
Coil, KA2 coils, the equal dead electricity of KA3 coils, KA2 normally opened contacts disconnect, and lead to contactor KM1 coil losing electricities, KM1 normally opened contacts
It disconnects, earth leakage protective device LD accesses, restores normal operating condition；（8）Intermediate relay KA7 normally opened contacts be closed after, the time after
Electric appliance KT5 coils are connected, and delay 6s disconnects KT5 normally-closed contacts, intermediate relay KA4 coils, KA5 coils, KA6 coils, KA7 lines
The whole dead electricity of circle, after contactor KM1, KM2, KM3 whole dead electricity, KM1 normally-closed contacts, KM2 normally-closed contacts, KM3 normally-closed contacts close
It closes, normal operating condition indicator light LYX is connected at this time, prompts testing crew, earth leakage protective device to restore normal operating condition, no
It can be tested to device.
A kind of method for being indicated to start earth leakage protective device experiment with peripheral control circuits provided by the invention, by electric leakage
Protector circuit carries out the modes such as short circuit, isolation so that when staff tests it, it is not required to have a power failure in short-term, without
Consider influence of the experiment to user, the electrical equipment of user will not be damage；After the test, earth leakage protective device can be rapid extensive
Multiple normal operating condition, this method is easy to operate, securely and reliably, greatly improves the working efficiency of staff, also ensures
The normal electricity consumption of user.It, can be completely isolated in the peripheral control circuits provided by the present invention for realizing the above method
Earth leakage protective device so that reduce impact of the experiment process to user；Entire experiment process is improved without having a power failure to user
The reliability of power supply；Entire peripheral control circuits are mainly made of contactor and relay, of low cost.
Above-mentioned technical proposal is one embodiment of the present invention, for those skilled in the art, at this
On the basis of disclosure of the invention application process and principle, it is easy to make various types of improvement or deformation, be not limited solely to this
Invent method described in above-mentioned specific implementation mode, therefore previously described mode is only preferred, and and without limitation
The meaning of property.
Claims (7)
1. a kind of peripheral control circuits of instruction earth leakage protective device experiment, including major loop LA and control loop LB, the master return
Road is equipped with earth leakage protective device LD, it is characterised in that：The earth leakage protective device peripheral control circuits further include contactor KM1,
KM2, KM3, intermediate relay KA1-KA7, time relay KT1-KT6, experiment start button SY, operation start button YX, examination
Test license indicator light LSY and normal operating condition indicator light LYX；The major loop LA include by contactor KM2 normally-closed contacts,
The series arm of earth leakage protective device LD, contactor KM3 normally-closed contacts composition, and the contactor that is connected in parallel with the series arm
KM1 normally opened contacts；
The control loop LB is made of the branch L1-L10 being connected in parallel, the branch L1 by the experiment that is connected in series with start by
Button SY, intermediate relay KA1 coils, KA2 coils, KA3 coils and time relay KT4 normally-closed contacts composition；The experiment is opened
Dynamic button SY is connected in parallel KA1 normally opened contacts；The branch L2 is the intermediate relay KA2 normally opened contacts being connected in series with and contact
Device KM1 coils；The branch L3 is the intermediate relay KA3 normally opened contacts being connected in series with and time relay KT1 coils；It is described
Branch L4 is the time relay KT1 normally opened contacts being connected in series with, contactor KM2 coils, KM3 coils, time relay KT2 lines
Circle and time relay KT3 normally-closed contacts；The branch L5 is that the time relay KT2 normally opened contacts being connected in series with and experiment are permitted
It may indicate that lamp LSY；The branch L6 is the operation start button YX being connected in series with, intermediate relay KA4 coils, KA5 coils,
KA6 coils, KA7 coils and time relay KT5 normally-closed contacts；The operation start button YX is connected in parallel intermediate relay
KA4 normally opened contacts；The branch L7 is the intermediate relay KA5 normally opened contacts being connected in series with and time relay KT4 coils；Institute
It is the intermediate relay KA6 normally opened contacts being connected in series with and time relay KT5 coils to state branch L8；The branch L9 is series connection
The intermediate relay KA7 normally opened contacts and time relay KT6 coils of connection；The branch L9 is the contactor being connected in series with
KM1 normally-closed contacts, KM2 normally-closed contacts, KM3 normally-closed contacts and normal operating condition indicator light LYX.
2. a kind of peripheral control circuits of instruction earth leakage protective device experiment as described in claim 1, it is characterised in that：When described
Between the delay duration of relay KT1, KT2, KT3 be 2s.
3. a kind of peripheral control circuits of instruction earth leakage protective device experiment as claimed in claim 2, it is characterised in that：When described
Between relay KT4 delay duration be 4s.
4. a kind of peripheral control circuits of instruction earth leakage protective device experiment as claimed in claim 3, it is characterised in that：When described
Between relay KT5 delay duration be 6s.
5. a kind of peripheral control circuits of instruction earth leakage protective device experiment as claimed in claim 4, it is characterised in that：When described
Between relay KT1-KT5 delay duration error be not more than 0.5s.
6. a kind of peripheral control circuits of instruction earth leakage protective device experiment as claimed in claim 5, it is characterised in that：When described
Between relay KT1-KT5 be air damp type time relay of sexual valence.
7. a kind of peripheral control circuits of the instruction earth leakage protective device experiment based on peripheral control circuits as described in claim 1
Test method, it is characterised in that：Include the following steps：
（1）Experiment start button SY, intermediate relay KA1 coil, KA2 coils, the KA3 coils for pressing control loop LB are led simultaneously
Logical, KA1 normally opened contacts are closed；
（2）Intermediate relay KA2 normally opened contacts are closed, the conducting of contactor KM1 coils, and contactor KM1 is normally opened in major loop LA touches
Point is closed, and earth leakage protective device LD is shorted at this time, and the user equipment electric current overwhelming majority passes through contactor KM1；
（3）Intermediate relay KA3 normally opened contacts are closed, time relay KT1 conductings, delay 2s conducting contact device KM2 coils,
KM3 coils, time relay KT2 coils, contactor KM2 normally-closed contacts, KM3 normally-closed contacts disconnect in major loop LA at this time, real
Existing earth leakage protective device isolation；
（4）Time relay KT2 conduction tests after the 2s that is delayed permit indicator light LSY, prompt testing crew to electric leakage at this time
Protector is tested, without considering the influence to user；
（5）Earth leakage protective device is carried out after the test to resume operation operation, presses run start button YX, intermediate relay first
KA4-KA7 coils simultaneously turn on, and intermediate relay KA4 normally opened contacts are closed；
（6）Intermediate relay KA5 normally opened contacts are closed, and the conducting of time relay KT3 coils, be delayed 2s turn-off time relays
The normally-closed contact of KT3, contactor KM2 coils, KM3 coil losing electricities, contactor KM2 normally-closed contacts, KM3 are normally closed on major loop LA
Contact is closed, earth leakage protective device isolated failure；
（7）After intermediate relay KA6 normally opened contacts are closed, the conducting of time relay KT4 coils, it is normally closed tactile that delay 4s disconnects KT4
Point, intermediate relay KA1 coils, KA2 coils, the equal dead electricity of KA3 coils, KA2 normally opened contacts disconnect, and lead to contactor KM1 coils
Dead electricity, KM1 normally opened contacts disconnect, and earth leakage protective device LD accesses restore normal operating condition；
（8）After intermediate relay KA7 normally opened contacts are closed, the conducting of time relay KT5 coils, it is normally closed tactile that delay 6s disconnects KT5
Point, intermediate relay KA4 coils, KA5 coils, KA6 coils, KA7 coil whole dead electricity, contactor KM1, KM2, KM3 all lose
After electricity, KM1 normally-closed contacts, KM2 normally-closed contacts, KM3 normally-closed contacts are closed, and normal operating condition indicator light LYX is connected at this time, carries
Show that testing crew, earth leakage protective device have restored normal operating condition, device can not be tested again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610254558.1A CN105891639B (en) | 2016-04-22 | 2016-04-22 | It is a kind of instruction earth leakage protective device experiment peripheral control circuits, test method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610254558.1A CN105891639B (en) | 2016-04-22 | 2016-04-22 | It is a kind of instruction earth leakage protective device experiment peripheral control circuits, test method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105891639A CN105891639A (en) | 2016-08-24 |
| CN105891639B true CN105891639B (en) | 2018-09-25 |
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ID=56704534
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610254558.1A Expired - Fee Related CN105891639B (en) | 2016-04-22 | 2016-04-22 | It is a kind of instruction earth leakage protective device experiment peripheral control circuits, test method |
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| Country | Link |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1594207A1 (en) * | 2004-05-04 | 2005-11-09 | Schupa GmbH | Protection device for AC and DC leakage currents |
| CN103353556A (en) * | 2013-06-06 | 2013-10-16 | 国家电网公司 | Relay protection device pressboard outlet logic detection apparatus |
| CN103630789A (en) * | 2013-12-19 | 2014-03-12 | 国家电网公司 | Auxiliary experiment device for breaker failure protection |
| CN204269742U (en) * | 2014-11-19 | 2015-04-15 | 镇海石化建安工程有限公司 | Restart test unit |
-
2016
- 2016-04-22 CN CN201610254558.1A patent/CN105891639B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1594207A1 (en) * | 2004-05-04 | 2005-11-09 | Schupa GmbH | Protection device for AC and DC leakage currents |
| CN103353556A (en) * | 2013-06-06 | 2013-10-16 | 国家电网公司 | Relay protection device pressboard outlet logic detection apparatus |
| CN103630789A (en) * | 2013-12-19 | 2014-03-12 | 国家电网公司 | Auxiliary experiment device for breaker failure protection |
| CN204269742U (en) * | 2014-11-19 | 2015-04-15 | 镇海石化建安工程有限公司 | Restart test unit |
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| Publication number | Publication date |
|---|---|
| CN105891639A (en) | 2016-08-24 |
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Granted publication date: 20180925 Termination date: 20190422 |