CN204945287U - A kind of capacitor testing instrument - Google Patents
A kind of capacitor testing instrument Download PDFInfo
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- CN204945287U CN204945287U CN201520778196.7U CN201520778196U CN204945287U CN 204945287 U CN204945287 U CN 204945287U CN 201520778196 U CN201520778196 U CN 201520778196U CN 204945287 U CN204945287 U CN 204945287U
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- capacitor
- sampling unit
- direct supply
- testing instrument
- voltage sampling
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Abstract
The utility model discloses a kind of capacitor testing instrument, it comprises a direct supply, current sampling unit, voltage sampling unit, auxiliary reclay, the time relay, protective resistance, described DC power output end is connected with capacitor input end, described current sampling unit is connected between described DC supply input and capacitor output, and described voltage sampling unit and capacitor are connected in parallel; Described protective resistance is connected between direct supply and capacitor; The described time relay and current sampling unit are connected in parallel; Described auxiliary reclay is arranged between described voltage sampling unit and direct supply.This capacitor testing instrument adds an auxiliary reclay between direct supply and voltage sampling unit, control voltage sampling unit accurately tests the actual state of testing capacitor, Timeliness coverage testing capacitor is abnormal, ensures the personal safety of tester and the serviceable life of instrument simultaneously.
Description
Technical field
The utility model relates to electrical equipment quality detection device field, particularly relate to a kind of capacitor testing instrument.
Background technology
As the common equipment leakage current tester of alminium electrolytic condenser container leakage testing current, it is the requisite instrumentation of alminium electrolytic condenser production, testing experiment, sampling observation.Current instrument is all only be with a voltage table and a reometer, in order to show virtual voltage and leakage current mostly.In order to the accuracy manufacturer of setting voltage is by the positive pole of the positive pole one termination adjustable DC power supply of voltage table, the negative pole of the negative pole one termination adjustable DC power supply of voltage table.But instrument can add a protective resistance (R, 1K Ω) to testing capacitor in the process of charging measurement, if testing capacitance be leakage current greatly or inefficacy product etc., then the virtual voltage of capacitor there are differences with setting voltage.And; due to the impact of protective resistance; therefore the virtual voltage of testing capacitor cannot accurately show in DC voltage; usually there will be the reality due to testing capacitor cannot be discovered in time; cause capacitor from explosion valve to open spray vapour or capacitor explodes, this all brings certain impact to the serviceable life of the personal safety of tester and instrument.
Utility model content
In order to solve above-mentioned the deficiencies in the prior art, the utility model provides a kind of capacitor testing instrument, it adds an auxiliary reclay between direct supply and voltage sampling unit, control voltage sampling unit accurately tests the actual state of testing capacitor, Timeliness coverage testing capacitor is abnormal, ensures the personal safety of tester and the serviceable life of instrument simultaneously.
Technical problem to be solved in the utility model is achieved by the following technical programs:
A kind of capacitor testing instrument, it comprises a direct supply, current sampling unit, voltage sampling unit, auxiliary reclay, the time relay, protective resistance, described DC power output end is connected with capacitor input end, described current sampling unit is connected between described DC supply input and capacitor output, and described voltage sampling unit and capacitor are connected in parallel; Described protective resistance is connected between direct supply and capacitor; The described time relay and current sampling unit are connected in parallel; Described auxiliary reclay is arranged between described voltage sampling unit and direct supply.
Further, the first switch contact of described auxiliary reclay is connected with voltage sampling unit, and the second switch contact of described auxiliary reclay is connected with direct supply, and the 3rd switch contact of described auxiliary reclay is connected with capacitive load end.
Further, also comprise a pushbutton switch, it is connected between described protective resistance and capacitive load end.
Further, described pushbutton switch also connects a discharge resistance.
Further, described current sampling unit is DC ammeter; Described voltage sampling unit is D.C. voltmeter.
Further, described direct supply is adjustable DC power supply.
Further, described capacitor testing instrument is aluminium electrolutic capacitor leakage current detector.
The utility model has following beneficial effect: this capacitor testing instrument adds an auxiliary reclay between direct supply and voltage sampling unit, control voltage sampling unit accurately tests the actual state of testing capacitor, Timeliness coverage testing capacitor is abnormal, ensures the personal safety of tester and the serviceable life of instrument simultaneously; Serviceable life that structure is simple, can extend instrument and reducing costs.
Accompanying drawing explanation
Fig. 1 is the circuit connection diagram of an embodiment of the present utility model;
Fig. 2 is the circuit connection diagram of another embodiment of the present utility model.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described in detail.
Please refer to Fig. 1, which show a kind of capacitor testing instrument, preferably as the pointer leakage current detector that aluminium electrolutic capacitor CX tests, it comprises a direct supply E and capacitor CX, described direct supply E output terminal is connected with capacitor CX input end, described capacitor CX output terminal is connected with direct supply E input end, forms a closed-loop path; A protective resistance R1 is connected in series with between described direct supply E output terminal and capacitor CX input end; Described capacitor CX is connected in parallel a voltage sampling unit, and be preferably DC voltage Table V, its one end is connected with capacitor CX output terminal, and the other end is connected with direct supply E output terminal, for testing and reading magnitude of voltage; Be connected with a current sampling unit between described direct supply E input end and capacitor CX output terminal, be preferably DC current Table A, for testing and reading current value; Described current sampling unit is connected in parallel to a time relay S1, disconnects closed for timing; An auxiliary reclay S2 is also connected with between described voltage sampling unit and direct supply E, first switch contact 6 of described auxiliary reclay S2 is connected with voltage sampling unit, the second switch contact 7 of described auxiliary reclay S2 is connected with direct supply E, and the 3rd switch contact 8 of described auxiliary reclay S2 is connected with capacitor CX.
Further, also comprise a pushbutton switch S, its first switch contact 1 and second switch contact 2 are connected between described protective resistance R1 and capacitor CX load end.3rd switch contact 3 of described pushbutton switch S also connects a discharge resistance R2.
Further, described direct supply E is preferably adjustable DC power supply.
The principle of work of this pointer leakage current detector is as follows: 1,2 of pushbutton switch S closes, and the first switch contact 6 and the 3rd switch contact 8 of auxiliary reclay S2 close, and voltage table V pointer shows the magnitude of voltage of this capacitor CX; After certain hour, time relay S1 disconnects, the current value of reometer A pointer display capacitor CX.This leakage current detector accurately can test the actual state of testing capacitor CX, and Timeliness coverage testing capacitor CX is abnormal, ensures the personal safety of tester and the serviceable life of instrument simultaneously.
As shown in Figure 2, described capacitor testing instrument can also be the digital display type leakage current detector of capacitor testing, and itself and above-mentioned pointer leakage current detector difference are the display mode of electric current and voltage value, adopts prior art, does not repeat them here.R3 shown in Fig. 2 is fixed value resistance, and U is the voltage drop at R3 two ends.
The above embodiment only have expressed embodiment of the present utility model; it describes comparatively concrete and detailed; but therefore can not be interpreted as the restriction to the utility model the scope of the claims; in every case the technical scheme adopting the form of equivalent replacement or equivalent transformation to obtain, all should drop within protection domain of the present utility model.
Claims (7)
1. a capacitor testing instrument, it is characterized in that, it comprises a direct supply, current sampling unit, voltage sampling unit, auxiliary reclay, the time relay, protective resistance, described DC power output end is connected with capacitor input end, described current sampling unit is connected between described DC supply input and capacitor output, and described voltage sampling unit and capacitor are connected in parallel; Described protective resistance is connected between direct supply and capacitor; The described time relay and current sampling unit are connected in parallel; Described auxiliary reclay is arranged between described voltage sampling unit and direct supply.
2. capacitor testing instrument according to claim 1, it is characterized in that, first switch contact of described auxiliary reclay is connected with voltage sampling unit, the second switch contact of described auxiliary reclay is connected with direct supply, and the 3rd switch contact of described auxiliary reclay is connected with capacitive load end.
3. capacitor testing instrument according to claim 1, is characterized in that, also comprises a pushbutton switch, and it is connected between described protective resistance and capacitive load end.
4. capacitor testing instrument according to claim 3, is characterized in that, described pushbutton switch also connects a discharge resistance.
5. capacitor testing instrument according to claim 1, is characterized in that, described current sampling unit is DC ammeter; Described voltage sampling unit is D.C. voltmeter.
6. capacitor testing instrument according to claim 1, is characterized in that, described direct supply is adjustable DC power supply.
7. capacitor testing instrument according to claim 1, is characterized in that, described capacitor testing instrument is aluminium electrolutic capacitor leakage current detector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520778196.7U CN204945287U (en) | 2015-10-09 | 2015-10-09 | A kind of capacitor testing instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520778196.7U CN204945287U (en) | 2015-10-09 | 2015-10-09 | A kind of capacitor testing instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204945287U true CN204945287U (en) | 2016-01-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520778196.7U Active CN204945287U (en) | 2015-10-09 | 2015-10-09 | A kind of capacitor testing instrument |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108802554A (en) * | 2018-06-13 | 2018-11-13 | 中车株洲电力机车有限公司 | A kind of capacity fall off method for detecting abnormality and system, computer equipment |
| CN110108956A (en) * | 2019-04-26 | 2019-08-09 | 华夏天信智能物联股份有限公司 | A kind of dedicated high frequency electric source of the capacitor testing of wide frequency ranges and its test method |
| WO2022165933A1 (en) * | 2021-02-03 | 2022-08-11 | 桂林芯飞光电子科技有限公司 | Device end-based defective optical device capacitive element electric leakage test system and test method |
-
2015
- 2015-10-09 CN CN201520778196.7U patent/CN204945287U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108802554A (en) * | 2018-06-13 | 2018-11-13 | 中车株洲电力机车有限公司 | A kind of capacity fall off method for detecting abnormality and system, computer equipment |
| CN110108956A (en) * | 2019-04-26 | 2019-08-09 | 华夏天信智能物联股份有限公司 | A kind of dedicated high frequency electric source of the capacitor testing of wide frequency ranges and its test method |
| WO2022165933A1 (en) * | 2021-02-03 | 2022-08-11 | 桂林芯飞光电子科技有限公司 | Device end-based defective optical device capacitive element electric leakage test system and test method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information |
Inventor after: Chen Jiahuo Inventor after: Chen Zhenquan Inventor after: Liao Qiong Inventor after: Cheng Jinqing Inventor before: Chen Jiahua Inventor before: Chen Zhenquan Inventor before: Liao Qiong Inventor before: Cheng Jinqing |
|
| COR | Change of bibliographic data | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180705 Address after: 425000 northern part of Yao Du Avenue, Tuojiang Town, Jiang Hua Economic Development Zone, Yongzhou Yao Autonomous County, Hunan Province, Yongzhou Patentee after: Jiang Hua emerald new energy energy storage technology Co., Ltd. Address before: 526000 Guangdong province Zhaoqing Duanzhou District Zhaoqing Avenue south side, Duanzhou eight road west 2 area factory area Patentee before: ZHAOQING BERYL ELECTRONIC TECHNOLOGY CO., LTD. |
|
| TR01 | Transfer of patent right |