CN204228921U - A kind of passive portable non electrical quantity directly jumps relay tester - Google Patents
A kind of passive portable non electrical quantity directly jumps relay tester Download PDFInfo
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- CN204228921U CN204228921U CN201420772989.3U CN201420772989U CN204228921U CN 204228921 U CN204228921 U CN 204228921U CN 201420772989 U CN201420772989 U CN 201420772989U CN 204228921 U CN204228921 U CN 204228921U
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- 230000009191 jumping Effects 0.000 claims abstract description 36
- 230000005611 electricity Effects 0.000 claims abstract description 10
- 238000012360 testing method Methods 0.000 abstract description 11
- 238000005259 measurement Methods 0.000 abstract description 7
- 238000001514 detection method Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000004904 shortening Methods 0.000 description 2
- 230000003292 diminished effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
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- Testing Electric Properties And Detecting Electric Faults (AREA)
Abstract
The utility model relates to a kind of passive portable non electrical quantity and directly jumps relay tester, between the additional rated voltage end of access non-electricity protecting device, for detecting straight start-up parameter of jumping relay, it is characterized in that, comprise: slide rheostat in sequential series and directly jump relay between the additional rated voltage end of described non-electricity protecting device, when described slide rheostat is placed in maximum value, described straight jumping relay does not work; Voltage table, described voltage table is connected in parallel on described straight jumping relay two ends, for measuring the trigger voltage of described straight jumping relay; Power meter, described power meter is connected to described straight jumping relay two ends, for measuring the starting power of described straight jumping relay.Adopt when not accessing external power source when on-the-spot virtual voltage and realize the measurement of relay correlation parameter and digital independent, reduce equipment investment, shorten the equipment test time, improve testing of equipment precision.
Description
Technical field
The utility model relates to a kind of passive portable non electrical quantity and directly jumps relay tester.
Background technology
According to operation of power networks experience, transformer non-electricity protecting device misoperation situation is caused to take place frequently because the generation positive level single-point grounding of direct current or the close-in fault of generation transformer cause superposing transient DC component in secondary cable, on inspection, finally to be judged to be in non-electricity protecting device that directly trip auxiliary reclay trigger voltage or starting power parameter configuration of non electrical quantity does not meet relevant regulations stipulate, " all important loops relating to directly tripping operation are specified in " State Grid Corporation of China's 18 great anti-accident measures of electrical network " provision 15.7.8 bar, the auxiliary reclay of operation voltage within the scope of nominal DC power supply voltage 55%-70% should be adopted, and require that its operating power is not less than 5W ".At present, detection means for this relay is single, usual employing direct supply generator regulates input direct voltage, DC ammeter is adopted to measure input current, then the method calculating starting power is carried out, research technique is complicated, uses the apparatus expensive such as power source generator, DC ammeter in test, and test voltage and on-the-spot actual DC voltage there are differences and also causes measurement data and there is error.
Utility model content
The utility model is in view of the leak of above-mentioned prior art, a kind of passive portable non electrical quantity is provided directly to jump relay tester, adopt when not accessing external power source when on-the-spot virtual voltage and realize the measurement of relay correlation parameter and digital independent, reach effects such as reducing equipment investment, shortening equipment test time, raising testing of equipment precision.
Passive portable non electrical quantity of the present utility model is directly jumped relay tester and is comprised, and between the additional rated voltage end of access non-electricity protecting device, for detecting straight start-up parameter of jumping relay, comprising:
Slide rheostat in sequential series and directly jump relay between the additional rated voltage end of described non-electricity protecting device, when described slide rheostat is placed in maximum value, described straight jumping relay is in non-action state;
Voltage table, described voltage table is connected in parallel on described straight jumping relay two ends, for measuring the trigger voltage of described straight jumping relay;
Power meter, described power meter is connected to described straight jumping relay two ends, for measuring the starting power of described straight jumping relay.
Preferably, described voltage table is the voltage table that measuring accuracy is not more than 0.1V.
Preferably, described power meter is the power meter that measuring accuracy is not more than 0.1W.
Preferably, described slide rheostat is the gear-type slide rheostat with many gears.
Passive portable non electrical quantity of the present utility model is utilized directly to jump relay tester, adopt on-the-spot virtual voltage as standard voltage source, adopt slide rheostat as voltage-regulation means, adopt High-accuracy direct current voltage table, DC power table as measurement means, adopt when not accessing external power source when on-the-spot virtual voltage and realize the measurement of relay correlation parameter and digital independent, reach effects such as reducing equipment investment, shortening equipment test time, raising testing of equipment precision.
Accompanying drawing explanation
Fig. 1 is the circuit structure diagram that passive portable non electrical quantity of the present utility model directly jumps relay tester.
Embodiment
Below, directly jump relay tester to passive portable non electrical quantity of the present utility model to be by reference to the accompanying drawings described.With reference to the circuit structure diagram of Fig. 1 ,+BM node and-BM node are the actual additional rated voltage end points of on-the-spot non-electricity protecting device, and first node 1 is connected with-BM node with+BM node respectively with Section Point 2.Between first node 1 and Section Point 2, the straight jumping relay 7 (those skilled in the art should be understood to slide rheostat 4 and straight coils connected in series of jumping relay 7) having slide rheostat 4 and need detection in sequential series, is formed with intermediate node 3 between slide rheostat 4 and straight jumping relay 7.Understand thoroughly, the effect of slide rheostat 4 is dividing potential drops, and when slide rheostat 4 is placed in maximum value, straight relay 7 (those skilled in the art should be understood to the contact of directly jumping relay 7) of jumping is in non-action state.Regulate slide rheostat 4 step by step, its resistance is diminished gradually, be namely applied to straight voltage of jumping on relay 7 and increase gradually, during to a certain critical point, straight relay 7 of jumping is opened.Power meter 5 and voltage table 6 is used to measure power now and voltage.Power meter 5 is for measuring straight power of jumping when relay 7 is opened, power meter 5 with directly jump relay 7 and be connected, particularly, the determining circle and be connected to intermediate node 3 and the one end of directly jumping relay 7 of power meter 5, moving-coil is connected with the straight other end of jumping relay 7 with intermediate node 3.Voltage table 6 is connected in parallel on straight two ends of jumping relay 7, and namely voltage table 6 is connected with intermediate node 3 and Section Point 2.
Passive portable non electrical quantity of the present utility model directly jumps the measuring accuracy of relay tester and the range of slide rheostat 4 and adjustable differential, the measuring accuracy of power meter 5 and the measuring accuracy of voltage table 6 great relation, therefore, in the present embodiment, the measuring accuracy of voltage table 6 is not more than 0.1V, and the measuring accuracy of power meter 5 is not more than 0.1W.As further specific embodiments, the slide rheostat 4 of the present embodiment is for having the gear-type slide rheostat of many gears, can require according to actual measurement and straight electrical specifications of jumping relay, concrete selection has the slide rheostat of different resistance gear differences, such as adjacent gear positions difference (adjustable differential) meets: during every grade of adjustment, the changing value of voltage table 6 is less than 0.5V, and the changing value of power meter 5 is less than 0.5W.
When straight jumping relay is detected, first slide rheostat 4 is transferred to maximum range, on the non electrical quantity node+BM passive portable non electrical quantity of the present utility model directly being jumped the on-the-spot non-electricity protecting device of relay tester cut-in operation and-BM.Adjust the access resistance of slide rheostat 4 step by step, when act on straight voltage of jumping relay 7 two ends meet trigger voltage, starting power requirement time, the action of straight jumping relay 7, magnitude of voltage now and performance number is recorded from voltage table 6 and power meter 5, compare with straight ratings of jumping on the nameplate of relay 7, the 55%-70% that trigger voltage is rated voltage if meet, and when starting power is greater than 5W, this directly jumps relay is that detection is qualified, completes the detection of relay.
Passive portable non electrical quantity of the present utility model is utilized directly to jump relay tester, can be detected straight relay of jumping by simple means of testing, when not accessing external power source, directly use on-the-spot non electrical quantity voltage as test voltage, relevant measurement parameter and data are obtained by this tester, detect the straight jumping relay not meeting " state's net is counter arranges " quickly and easily, significantly save cost of investment and the running time of test event.
Claims (4)
1. passive portable non electrical quantity directly jumps a relay tester, between the additional rated voltage end of access non-electricity protecting device, for detecting straight start-up parameter of jumping relay, it is characterized in that, comprise:
Slide rheostat in sequential series and directly jump relay between the additional rated voltage end of described non-electricity protecting device, when described slide rheostat is placed in maximum value, described straight jumping relay is in non-action state;
Voltage table, described voltage table is connected in parallel on described straight jumping relay two ends, for measuring the trigger voltage of described straight jumping relay;
Power meter, described power meter is connected to described straight jumping relay two ends, for measuring the starting power of described straight jumping relay.
2. passive portable non electrical quantity as claimed in claim 1 directly jumps relay tester, it is characterized in that, described voltage table is the voltage table that measuring accuracy is not more than 0.1V.
3. passive portable non electrical quantity as claimed in claim 1 directly jumps relay tester, it is characterized in that, described power meter is the power meter that measuring accuracy is not more than 0.1W.
4. passive portable non electrical quantity as claimed in claim 1 directly jumps relay tester, it is characterized in that, described slide rheostat is the gear-type slide rheostat with many gears.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420772989.3U CN204228921U (en) | 2014-12-09 | 2014-12-09 | A kind of passive portable non electrical quantity directly jumps relay tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420772989.3U CN204228921U (en) | 2014-12-09 | 2014-12-09 | A kind of passive portable non electrical quantity directly jumps relay tester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204228921U true CN204228921U (en) | 2015-03-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420772989.3U Active CN204228921U (en) | 2014-12-09 | 2014-12-09 | A kind of passive portable non electrical quantity directly jumps relay tester |
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| CN (1) | CN204228921U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107957521A (en) * | 2017-10-09 | 2018-04-24 | 珠海格力电器股份有限公司 | Circuit adjusting method and device and relay protection circuit |
-
2014
- 2014-12-09 CN CN201420772989.3U patent/CN204228921U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107957521A (en) * | 2017-10-09 | 2018-04-24 | 珠海格力电器股份有限公司 | Circuit adjusting method and device and relay protection circuit |
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