CN202281815U - Low-voltage power transmission line fault point searching apparatus - Google Patents
Low-voltage power transmission line fault point searching apparatus Download PDFInfo
- Publication number
- CN202281815U CN202281815U CN2011203675693U CN201120367569U CN202281815U CN 202281815 U CN202281815 U CN 202281815U CN 2011203675693 U CN2011203675693 U CN 2011203675693U CN 201120367569 U CN201120367569 U CN 201120367569U CN 202281815 U CN202281815 U CN 202281815U
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- Prior art keywords
- power transmission
- voltage power
- low
- transmission line
- electrical appliance
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- Expired - Fee Related
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- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Abstract
The utility model discloses a low-voltage power transmission line fault point searching apparatus, comprising an electrical appliance, wherein one end of the electrical appliance is connected with a phase line of a low-voltage power transmission line and the other end of the electrical appliance is orderly connected with a plurality of users connected in parallel; and also comprising a pincerlike amperemeter, wherein the phase line and the neutral line of the users are arranged inside the jaw of the pincerlike amperemeter. The low-voltage power transmission line fault point searching apparatus can rapidly and accurately find out fault points, can save time, is high in safety coefficient and increases working efficiency.
Description
Technical field
The utility model relates to electric power system fault maintenance technique field, especially relates to a kind of low voltage power transmission circuit trouble spot and searches device, is used to search low voltage power transmission line short trouble spot.
Background technology
Electrical network often breaks down in power transmission engineering, and the low-voltage cable fault mainly contains short circuit, opens circuit, and in order in time to find to fix a breakdown the trouble spot, needs electric power personnel artificial trouble-shooting point behind line failure.Because searching short trouble can not power up, therefore, to search very difficulty, even cause fault coverage to enlarge, internal damage is even more serious, and search efficiency is low, and spended time is long.
Summary of the invention
For addressing the above problem, the purpose of the utility model provides a kind of low voltage power transmission circuit trouble spot and searches device, can find the trouble spot fast and accurately, and safety coefficient is high.
For realizing the foregoing invention purpose, the utility model adopts following technical scheme:
Device is searched in a kind of low voltage power transmission circuit trouble spot, and it comprises an electrical appliance, and electrical appliance one end terminates on the phase line of low voltage power transmission circuit, and the other end is connected with several parallelly connected users in turn; One clamp on amperemeter, user's the phase line and the neutral line are placed in the jaw of clamp on amperemeter.
Owing to adopt aforesaid technical scheme, the utlity model has following superiority:
Device is searched in this low voltage power transmission circuit trouble spot, and it is the fuse of " quick-fried disconnected " state through being connected in series an electrical appliance when the low voltage power transmission circuit failed because in the line with the replacement fuse; After the circuit energising; Adopt clamp on amperemeter to measure each user's electric current one by one, can find the trouble spot fast, safe and reliable; Save time, increase work efficiency.
Description of drawings
Fig. 1 is the circuit theory diagrams of the utility model one embodiment.
Embodiment
Through the accompanying drawing example technical scheme of the utility model is done further explain below.
As shown in Figure 1; Device is searched in this low voltage power transmission circuit trouble spot, and it comprises an electrical appliance, and electrical appliance one end terminates on the phase line L of low voltage power transmission circuit; The other end is connected with several parallelly connected users in turn, is respectively user L1, user L2, user L3 and user L4; One clamp on amperemeter, user's phase line L and neutral line N are placed in the jaw of clamp on amperemeter.
After the low voltage power transmission circuit failed because, the fuse failure of the fuse that a, b point are connected in the circuit; Pull up the fuse of fuse, go into an electrical appliance X,, power up at the low voltage power transmission circuit like electric furnace in a, b point serial connection; Record the line electricity flow valuve with clamp on amperemeter, adopt the mid point bisection method then, according to there being faulty section to have electric current to pass through on the circuit; Current value is the above-mentioned current value that records, and non-fault section current value is zero principle, adopts clamp on amperemeter to measure each user's electric current respectively; Can find short circuit trouble point, i.e. user L3 among Fig. 1, can further find then is because this family house lead in snarl causes short circuit together; After fixing a breakdown, close a floodgate and send electricity, recover normal.
The rated current of the electrical appliance X of a, b point serial connection is no more than the maximum range of clamp on amperemeter in the line.
Claims (1)
1. device is searched in a low voltage power transmission circuit trouble spot, and it is characterized in that: it comprises an electrical appliance, and electrical appliance one end terminates on the phase line of low voltage power transmission circuit, and the other end is connected with several parallelly connected users in turn; One clamp on amperemeter, user's the phase line and the neutral line are placed in the jaw of clamp on amperemeter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203675693U CN202281815U (en) | 2011-10-01 | 2011-10-01 | Low-voltage power transmission line fault point searching apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203675693U CN202281815U (en) | 2011-10-01 | 2011-10-01 | Low-voltage power transmission line fault point searching apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202281815U true CN202281815U (en) | 2012-06-20 |
Family
ID=46227978
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203675693U Expired - Fee Related CN202281815U (en) | 2011-10-01 | 2011-10-01 | Low-voltage power transmission line fault point searching apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202281815U (en) |
-
2011
- 2011-10-01 CN CN2011203675693U patent/CN202281815U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120620 Termination date: 20121001 |