CN204789914U - A circuit detection device for secondary system of transformer substation - Google Patents
A circuit detection device for secondary system of transformer substation Download PDFInfo
- Publication number
- CN204789914U CN204789914U CN201520412961.3U CN201520412961U CN204789914U CN 204789914 U CN204789914 U CN 204789914U CN 201520412961 U CN201520412961 U CN 201520412961U CN 204789914 U CN204789914 U CN 204789914U
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- circuit
- emitting diode
- light emitting
- secondary system
- cable
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- 238000001514 detection method Methods 0.000 title abstract description 7
- 239000002184 metal Substances 0.000 claims abstract description 6
- 241000270722 Crocodylidae Species 0.000 claims description 5
- LNNWVNGFPYWNQE-GMIGKAJZSA-N desomorphine Chemical compound C1C2=CC=C(O)C3=C2[C@]24CCN(C)[C@H]1[C@@H]2CCC[C@@H]4O3 LNNWVNGFPYWNQE-GMIGKAJZSA-N 0.000 claims description 5
- 206010014357 Electric shock Diseases 0.000 description 3
- 208000027418 Wounds and injury Diseases 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000004020 luminiscence type Methods 0.000 description 1
- 230000003278 mimic effect Effects 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Abstract
The utility model relates to a circuit detection device for secondary system of transformer substation, it includes that circuit incoming end iin, circuit output iout, fuse FU, cable resistance R1 and emitting diode organize, circuit incoming end iin, fuse FU, cable resistance R1, emitting diode group and circuit output iout establish ties in proper order, circuit incoming end iin tip and circuit output iout's tip do not is connected with the wiring checkpost, the utility model discloses can effective protection personnel and equipment safety, greatly the reduction personnel risk of getting an electric shock is convenient experimental, convenient to carry to it bumps danger to prevent to miss, do not need the high -low pressure that first judgement held in succession, normal electric leakage or electrostatic interference discharge, through flexible metal conduit protection of cables exocuticle.
Description
Technical field
The utility model relates to a kind of circuit checker for transformer station secondary system connection terminal, particularly relates to a kind of circuit checker for transformer station secondary system.
Background technology
When transformer station secondary system logic verify, signal transmission, need to carry out short circuit to terminal block, node or relay, with the short circuit of mimic channel or conducting state.Being all carry out short circuit test with common cable at present, when missing short circuit electric power loop, easily causing the person to get an electric shock, cause equipment burnout; And when shorting contact is bad, short circuit or conducting locking cannot be judged whether, easy erroneous judgement causes experimental mistake; And if need simultaneously short circuit two nodes time, a people cannot operate, and two people squeeze and easily touch before screen cabinet by mistake, get an electric shock.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of easy to operate, circuit checker for transformer station secondary system that use safety, Detection results are accurate and economic and practical.
The technical solution of the utility model is as follows:
The utility model comprises circuit incoming end Iin, circuit output end Iout, fuse FU, cable resistance R1 and light emitting diode group, and described circuit incoming end Iin, fuse FU, cable resistance R1, light emitting diode group and circuit output end Iout connect successively; Wiring clamp is connected in the end of described circuit incoming end Iin end and circuit output end Iout.
Further, light emitting diode group comprises light emitting diode VD1.
Further, light emitting diode group also comprises the light emitting diode VD2 with light emitting diode VD1 reverse parallel connection.
Further, also comprise divided circuit, described divided circuit is connected in parallel on the two ends of cable resistance R1 and light emitting diode group; Described divided circuit comprises shunt resistance R2 and the switch S B of series connection; The resistance of described shunt resistance R2 is 1 ~ 2 times of cable resistance R1.
Further, described wiring clamp is crocodile clamp.
Further, cable resistance R1 is the cable of spiral wound, and described cable-uncoiling length is 1m ~ 3m, and diameter is 1.5 square millimeters.
Further, described cable resistance R1 is set with flexible metal conduit.
The beneficial effects of the utility model are as follows:
1) by arranging fuse, when the utility model shorting stub is when missing short circuit power supply or ground connection, energy available protecting personnel and device security;
2) LED lighting when conducting, reminds the conducting of testing crew loop; Very big reduction personnel get an electric shock risk;
3) can make in the utility model self-sustaining inserted terminals row by arranging wiring clamp, convenient test; Only need people's operation, primary connection, easy to use;
4) this test shorting stub spiral winding can extend connection, easy to carry, and prevents from touching danger by mistake;
5) the utility model adopts two forward and reverse light emitting diodes in parallel, only needs one-time detection, does not need the high-low pressure first judging to hold in succession;
6) accurately can judge that tab terminal is normal electric leakage or with dangerous voltage by being arranged on divided circuit; Discharge normal electric leakage or electrostatic interference.
7) by flexible metal conduit protection cable exocuticle.
Accompanying drawing explanation
Fig. 1 is the circuit connection diagram of the utility model embodiment 1;
Fig. 2 is the circuit connection diagram of the utility model embodiment 2;
Fig. 3 is the structural representation of the utility model cable resistance R1.
Embodiment
For making the technical problems to be solved in the utility model, technical scheme and beneficial effect clearly, be described in detail below in conjunction with the drawings and specific embodiments.
Embodiment 1: as shown in Figure 1, the present embodiment comprises circuit incoming end Iin, circuit output end Iout, fuse FU, cable resistance R1, light emitting diode VD1 and divided circuit, described circuit incoming end Iin, fuse FU, cable resistance R1, light emitting diode VD1 and circuit output end Iout connect successively, and described divided circuit is connected in parallel on the two ends of cable resistance R1 and light emitting diode VD1; Described divided circuit comprises shunt resistance R2 and the switch S B of series connection; Be connected to wiring clamp in the end of described circuit incoming end Iin end and circuit output end Iout, only clamp need be linked into during use on the electrical secondary system connection terminal of needs detection.
The resistance of described shunt resistance R2 is 1 ~ 2 times of cable resistance R1.
Described wiring clamp is crocodile clamp.
Embodiment 2: as shown in Figure 2: the present embodiment comprises circuit incoming end Iin, circuit output end Iout, fuse FU, cable resistance R1, light emitting diode group and divided circuit, described circuit incoming end Iin, fuse FU, cable resistance R1, light emitting diode group and circuit output end Iout connect successively, and described divided circuit is connected in parallel on the two ends of cable resistance R1 and light emitting diode group; Described divided circuit comprises shunt resistance R2 and the switch S B of series connection; Be connected to wiring clamp in the end of described circuit incoming end Iin end and circuit output end Iout, only clamp need be linked into during use on the electrical secondary system connection terminal of needs detection.
The resistance of described shunt resistance R2 is 1 ~ 2 times of cable resistance R1.
Light emitting diode group comprise light emitting diode VD1 and with light emitting diode VD1 reverse parallel connection light emitting diode VD2.
Described wiring clamp is crocodile clamp.
Use during the present embodiment 2 and only need people's operation, the rapid glass tubular fuse-link of the preferred 1A of fuse FU; Access on tab terminal to be detected by crocodile clamp, easy to use; If by mistake short circuit electric power loop or tab terminal charged time, light emitting diode VD1 is luminous; By arranging divided circuit, during detection, first cut-off switch SB, if light emitting diode VD1 is luminous, then charged; Then Closing Switch SB, if light emitting diode VD1 continues luminescence, then tab terminal is charged, if light emitting diode VD1 is not luminous, then illustrate that tab terminal is only with electrostatic or normally leak electricity, thus realize judging that whether connection terminal is with dangerous voltage more accurately; By being arranged on the light emitting diode VD2 contrary with light emitting diode VD1 current direction, thus ensureing that primary connection just realizes detecting, not needing to exchange again to detect; Cable resistance R1 is the cable of spiral wound, and described cable-uncoiling length is 1m ~ 3m, ensure wiring length and cable resistance R1 effective; Cable is protected by flexible metal conduit.
As described in Figure 3, cable resistance R1 of the present utility model is the cable of spiral wound, and described cable-uncoiling length is 1m ~ 3m, and diameter is 1.5 square millimeters.
Further, described cable resistance R1 is set with flexible metal conduit.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the utility model.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein when not departing from spirit or scope of the present utility model, can realize in other embodiments.Therefore, the utility model can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (7)
1. the circuit checker for transformer station secondary system, it is characterized in that: comprise circuit incoming end Iin, circuit output end Iout, fuse FU, cable resistance R1 and light emitting diode group, described circuit incoming end Iin, fuse FU, cable resistance R1, light emitting diode group and circuit output end Iout connect successively; Wiring clamp is connected in the end of described circuit incoming end Iin end and circuit output end Iout.
2. a kind of circuit checker for transformer station secondary system according to claim 1, is characterized in that: light emitting diode group comprises light emitting diode VD1.
3. a kind of circuit checker for transformer station secondary system according to claim 2, is characterized in that: light emitting diode group also comprises the light emitting diode VD2 with light emitting diode VD1 reverse parallel connection.
4. a kind of circuit checker for transformer station secondary system according to any one of claim 1-3, it is characterized in that: also comprise divided circuit, described divided circuit is connected in parallel on the two ends of cable resistance R1 and light emitting diode group; Described divided circuit comprises shunt resistance R2 and the switch S B of series connection; The resistance of described shunt resistance R2 is 1 ~ 2 times of cable resistance R1.
5. a kind of circuit checker for transformer station secondary system according to claim 4, is characterized in that: described wiring clamp is crocodile clamp.
6. a kind of circuit checker for transformer station secondary system according to claim 5, it is characterized in that: cable resistance R1 is the cable of spiral wound, described cable-uncoiling length is 1m ~ 3m, and diameter is 1.5 square millimeters.
7. a kind of circuit checker for transformer station secondary system according to claim 6, is characterized in that: on described cable resistance R1, be set with flexible metal conduit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520412961.3U CN204789914U (en) | 2015-06-16 | 2015-06-16 | A circuit detection device for secondary system of transformer substation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520412961.3U CN204789914U (en) | 2015-06-16 | 2015-06-16 | A circuit detection device for secondary system of transformer substation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204789914U true CN204789914U (en) | 2015-11-18 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520412961.3U Active CN204789914U (en) | 2015-06-16 | 2015-06-16 | A circuit detection device for secondary system of transformer substation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204789914U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105425075A (en) * | 2015-12-08 | 2016-03-23 | 国家电网公司 | Relay protection alarm device |
| CN106940396A (en) * | 2017-05-04 | 2017-07-11 | 贵州电网有限责任公司 | A kind of Fiber-Optic Voltage |
| CN106970254A (en) * | 2017-05-04 | 2017-07-21 | 贵州电网有限责任公司 | A kind of optical fiber current mutual inductor |
-
2015
- 2015-06-16 CN CN201520412961.3U patent/CN204789914U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105425075A (en) * | 2015-12-08 | 2016-03-23 | 国家电网公司 | Relay protection alarm device |
| CN105425075B (en) * | 2015-12-08 | 2018-08-24 | 国家电网公司 | Relay protection warning device |
| CN106940396A (en) * | 2017-05-04 | 2017-07-11 | 贵州电网有限责任公司 | A kind of Fiber-Optic Voltage |
| CN106970254A (en) * | 2017-05-04 | 2017-07-21 | 贵州电网有限责任公司 | A kind of optical fiber current mutual inductor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |