CN202133743U

CN202133743U - Fault indicator for overhead line

Info

Publication number: CN202133743U
Application number: CN2011202221138U
Authority: CN
Inventors: 李刚; 郭晓林; 刘彬; 罗晓
Original assignee: Siyuan Electric Co Ltd
Current assignee: Siyuan Electric Co Ltd
Priority date: 2011-06-10
Filing date: 2011-06-28
Publication date: 2012-02-01
Anticipated expiration: 2021-06-28

Abstract

A fault indicator for an overhead line relates to the field of power detection technology, and comprises a current transformer, a main control panel, an indication circuit board and a power supply respectively arranged in a casing, wherein the current transformer, the indication circuit board and the power supply are respectively connected with corresponding ports on the main control panel. The device can accurately acquire a current, and fix a cable with an appropriate strength, and the installation and dismounting are convenient; the whole casing is made of a special insulating material, which is stainless, anti-aging, antistatic, and high in sealing; the fault display is realized by flash indication by a strong light LED indicating lamp, obvious in effect; and a control circuit board and a cell are both extremely durable elements, and easy to replace.

Description

The overhead transmission line fault detector

Technical field

The utility model relates to the device in a kind of electric power detection technique field, specifically is a kind of overhead transmission line fault detector.

Background technology

Intelligent overhead transmission line fault detector is to be used for detecting and a kind of signal meter (SM) of whether breaking down of identification electrical network overhead transmission line.Principle of work is for when overhead transmission line breaks down; Electric parameter can produce sudden change in the circuit; The variation of magnetic field and electric field takes place around circuit, and the fault detector on the overhead transmission line is gathered electric current through current sensing means, supplies control section circuit board detecting and analysis and judgement; And then the work of output alarm signal driving indicating section, to reach the purpose of indication fault circuit.

Retrieval through to the prior art field is found: put down in writing some kinds of line fault indicating devices in the existing publication application, as: Chinese patent document number CN2494990Y, the utility model name is called " line-failure indicator ";

Chinese patent document number CN2507017Y, the utility model name is called " power line short-circuit fault detector ";

Chinese patent document number CN201060249Y, the utility model name is called " electric power line fault indicator ";

Chinese patent document number CN201413375Y, the utility model name is called " line type short circuit and earth-fault indicator ".

But said apparatus all has following shortcoming:

(1) installs, plucks and unload inconvenience, when high-altitude application, be difficult to the corresponding site of accurate location indicator;

(2) card wire structure of product can't cooperate accurate current transformer is installed, and what cooperate with card wire structure is simple type current sensing means, signal measurement out of true;

(3) card wire structure that has is prone to get rusty, the easy damaged cable;

(4) card wire structure that has is insecure, is prone to slide with line;

(5) indicating fault is the board turning type, and can't carry out indicating fault evening;

(6) control circuit board or battery are non-exchange, are disposable products.

The utility model content

The utility model provides a kind of overhead transmission line fault detector to the above-mentioned deficiency that prior art exists, can the exact acquisition electric current, again can be with the suitable intensity fixed cable, and install, pluck and unload conveniently; Whole casing device uses the special insulation material, and non-corrosive, anti-aging, electrostatic prevention, sealing are strong; Fault shows that adopting the high light LED light to glimmer indicates, and effect is obvious; Control circuit board and battery are utmost point durable type element, and are easy to change.

The utility model is realized through following technical scheme; Comprise: be arranged at current transformer, master control board in the housing respectively, have indicating circuit plate and the power supply of LED, wherein: current transformer, indicating circuit plate and power supply all respectively with master control board on corresponding port link to each other.

Described housing comprises: hook, slide, inner cavity and Transparent lamp shade, wherein: hook is connected with inner cavity top, and Transparent lamp shade is connected with the inner cavity lower seal, and slide is irregular cylindric, is coated on hook and inner cavity outside.

Described current transformer is constituted and is placed in the hook, wherein by two semi-rings up and down: go up semi-ring and be fixed in the gib head of hook; Following semi-ring is positioned in the coupler body of hook and with said slide motion.

Described inner cavity is the seal chamber of round pie; Said master control board, power supply and indicating circuit plate are arranged in the inner cavity; The internal cavity of inner cavity top is provided with through hole to realize and being electrically connected of current transformer that this through hole is provided with seal approach in order to waterproof.

Described Transparent lamp shade is hemispherical, is connected with the inner chamber body lower seal.

The advantage of this device is:

(1) installs, plucks and unload conveniently, the corresponding site of the accurate location indicator of ability when high-altitude application;

(2) card wire structure of product cooperates the accurate current transformer of installation, and signal measurement is accurate;

(3) card wire structure is the insulativity material, non-corrosive, does not damage cable, does not slide with line;

(4) indicating fault is the indication of LED lamp, and evening is indication fault circuit clearly also;

(5) control circuit board and battery are all replaceable;

Description of drawings

Fig. 1 is the utility model front elevation.

Fig. 2 is the utility model left view.

Fig. 3 is the utility model front elevational view.

Fig. 4 is the utility model vertical view.

Fig. 5 is the utility model upward view.

Fig. 6 is the utility model installation diagram.

Fig. 7 is the utility model dismounting figure.

Embodiment

Embodiment in the face of the utility model elaborates down; Present embodiment is being to implement under the prerequisite with the utility model technical scheme; Provided detailed embodiment and concrete operating process, but the protection domain of the utility model is not limited to following embodiment.

Like Fig. 1-shown in Figure 5; Present embodiment comprises: be arranged at current transformer 2, master control board 3, the indicating circuit plate 4 that has LED and power supply 5 in the housing 1 respectively, wherein: current transformer 2, indicating circuit 4 plates and power supply 5 all respectively with master control board 3 on corresponding port link to each other.

Described housing 1 comprises: hook 6, slide 7, inner cavity 8 and Transparent lamp shade 9; Wherein: hook 6 is connected with inner cavity 8 tops; Transparent lamp shade 9 is connected with inner cavity 8 lower seal; Slide 7 is coated on hook 6 and inner cavity 8 outsides, is provided with first stage clip 12 within it below the wall and moves up and down with realization.

Described current transformer 2 is constituted and is placed in the hook 6, wherein by two

semi-rings

10,11 up and down: go up in the gib head that semi-ring 10 is fixed in hook 6; Following semi-ring 11 is positioned in the coupler body of hook 6, and the below of following semi-ring 11 is provided with second stage clip 13 and moves up and down to realize it.

Described inner cavity 8 is the seal chamber of round pie; Said master control board 3, indicating circuit plate 4 and power supply 5 are arranged in the inner cavity 8; The internal cavity of inner cavity 8 top is provided with through hole to realize and being electrically connected of current transformer 2 that this through hole is provided with seal approach in order to waterproof.

Described Transparent lamp shade 9 is hemispherical, is connected with the inner chamber body lower seal.

Described inner cavity 8 adopts spinner to combine to be connected with described Transparent lamp shade 9, and built-in sealing strip makes indication space and inner cavity waterproof and dampproof.Open described Transparent lamp shade 9, pull down the just replaceable internal electric element of bottom of inner cavity 8.

Described hook 6 is provided with beak 15 outside the projection at mouth of hook place, be used to make things convenient for cable to import.

When slide 7 moves up down in the effect of first stage clip 12, it is spacing and semi-ring 11 is also popped up under the effect of second stage clip 13 to understand corresponding relieving, up to closely contacting with last semi-ring 10.When described slide 7 presses downwards, also press downwards through the described down semi-ring 11 of spacing drive, expose fully and throw off cable up to the mouth of hook of described hook 6.

Described master control board 3 is carried out logic determines through the current signal that obtains current transformer 2 collections, and indicating circuit plate 4 is made corresponding indication: when power circuit broke down, pilot lamp glowed; Power circuit just often, pilot lamp is not luminous.

Like Fig. 6 and shown in Figure 7, when on overhead transmission line, fault detector being installed, the insulating bar 14 that uses hot line job to use; Hold described fault detector Transparent lamp shade 9, block described slide 7 and also press downwards and then lock, expose the maximum mouth of hook (like Fig. 6) of described hook 6; Lift high to overhead transmission line then; Outer rim guiding through the mouth of hook hangs over gib head on the tested cable, and the fork at loosening handle place is spacing then, withdraws from control lever; Described slide 7 pops up (like Fig. 6) voluntarily under built-in stage clip effect, up to the chucking cable.When slide 7 is upwards moved, unclamp the spacing of semi-ring 11 under the current transformer, make its also upwards action under the effect of self stage clip, semi-ring 10 on tight pickup current mutual inductor.

When needs are plucked when unloading fault detector from aerial cable; Earlier insulating bar 14 fork openings are put to maximum displacement; Enable card is lived described slide 7 (like Fig. 7), and operating grip makes fork press described slide 7 downwards, drives simultaneously that semi-ring 11 also presses under the current transformer downwards; Up to exposing the mouth of hook fully, mobile insulating bar 14 makes the described fault detector mouth of hook break away from cable and plucks and unload (like Fig. 6) down.

Claims

1. overhead transmission line fault detector; It is characterized in that; Comprise: be arranged at current transformer, master control board in the housing respectively, have indicating circuit plate and the power supply of LED, wherein: current transformer, indicating circuit plate and power supply all respectively with master control board on corresponding port link to each other.

2. overhead transmission line fault detector according to claim 1; It is characterized in that; Described housing comprises: hook, slide, inner cavity and Transparent lamp shade; Wherein: hook is connected with inner cavity top, and Transparent lamp shade is connected with the inner cavity lower seal, and slide is coated on hook and inner cavity is outside.

3. overhead transmission line fault detector according to claim 2 is characterized in that, described slide inwall below is provided with stage clip to realize moving up and down of self.

4. overhead transmission line fault detector according to claim 2; It is characterized in that; Described current transformer is constituted and is placed in the hook by two semi-rings up and down; Wherein: go up semi-ring and be fixed in the gib head of hook, the limited position of following semicircular tenia post is positioned in the coupler body of hook, can move up and down with said slide.

5. overhead transmission line fault detector according to claim 4 is characterized in that, the below of semi-ring is provided with stage clip to realize the following formula motion under the described current transformer.

6. overhead transmission line fault detector according to claim 2 is characterized in that, described inner cavity is the seal chamber of round pie, and said master control board, power supply and indicating circuit are arranged in the inner cavity.

7. according to claim 2 or 6 described overhead transmission line fault detectors, it is characterized in that the internal cavity top of described inner cavity is provided with through hole being electrically connected with realization and current transformer.

8. overhead transmission line fault detector according to claim 2 is characterized in that, described Transparent lamp shade is hemispherical, is connected with the inner chamber body lower seal.

9. according to claim 2 or 8 described overhead transmission line fault detectors, it is characterized in that described inner cavity adopts spinner to combine to be connected built-in sealing strip with described Transparent lamp shade.

10. according to claim 2 or 8 described overhead transmission line fault detectors, it is characterized in that described inner cavity below is provided with bottom, through opening the replaceable inner member of bottom.