CN203875876U - Appliance box for detecting leakage currents of end screen ground wire of current transformer in charging mode - Google Patents
Appliance box for detecting leakage currents of end screen ground wire of current transformer in charging mode Download PDFInfo
- Publication number
- CN203875876U CN203875876U CN201420323653.9U CN201420323653U CN203875876U CN 203875876 U CN203875876 U CN 203875876U CN 201420323653 U CN201420323653 U CN 201420323653U CN 203875876 U CN203875876 U CN 203875876U
- Authority
- CN
- China
- Prior art keywords
- box
- current transformer
- supporting leg
- connector
- ground wire
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000001514 detection method Methods 0.000 claims abstract description 12
- 239000000463 material Substances 0.000 claims description 7
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- 229920001342 Bakelite® Polymers 0.000 claims description 5
- 239000004637 bakelite Substances 0.000 claims description 5
- 229910000838 Al alloy Inorganic materials 0.000 claims description 2
- 238000009413 insulation Methods 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 abstract 1
- 238000012360 testing method Methods 0.000 description 7
- 238000005259 measurement Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 1
- 230000003449 preventive effect Effects 0.000 description 1
Landscapes
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Abstract
The utility model discloses an appliance box for detecting leakage currents of an end screen ground wire of a current transformer in a charging mode. The appliance box is characterized by being composed of a box body (1), a connecting piece (2), an insulation supporting leg (3), a base (4) and a storage groove (5). According to the technology, the appliance box can ascend to the height of survey crew in the working process, and is insulated from the ground, the survey crew can conveniently take and place various appliances, the working efficiency is improved, personel safety and the safety of the equipment in the whole measuring work are ensured, the function of carrying and storing an adopted measuring appliance is achieved, and the appliance box is particularly suitable for charged detection work of the leakage currents of the end screen ground wire of the current transformer.
Description
Technical field
The utility model relates to a kind of instrument box for current transformer end shield ground wire leakage current band electro-detection.
Background technology
In order to guarantee the safe operation of transmission line of electricity, reliable power supply, operation power unit's regulation, should regularly to 110KV current transformer end shield earth leakage stream, be with electro-detection, by operating current transformer end shield earth leakage flow valuve, in conjunction with the operation of equipment under test voltage over the ground, by Cx=I/ ω U, calculate the capacitance of equipment under test major insulation, dispatch from the factory capacitance comparison given with equipment under test again, DL/T596 < < power equipment preventive trial rules > > requires the variation of its capacitance should be in ± 5% scope.For this charged testing, to carry out under equipment under test running status, 110KV current transformer end shield ground connection is in secondary terminal box, need open secondary connection lid plate, with special-purpose clamp on amperemeter, measure, when carrying out this operation, due to apart from high-pressure conductive body close together, induced voltage is higher, according to the requirement of electric operating security regulations, should adopt corresponding insulation measures, height due to approximately 3 meters apart from ground of mutual inductor secondary connection boxes, needed instrument during detection, measurement device is more, operating personnel carry out this testing again on insulating ladder, at tool for transmitting, during measurement device, ground support staff will stand in tape insulation gloves on felt pad and carry out instrument, the transmission work of measurement device, make troubles to this surveying work, and there is certain potential safety hazard, the insulating supporting leg that this programme adopts bakelite material to make, by 4 hollow legs that connector is provided with this instrument box casing, be connected, height in the time of this instrument box can being risen to survey crew operation, make this surveying work only need 1 people just can complete, improved operating efficiency, guarantee the person and the device security of whole surveying work, carry in addition, deposit the function of survey tool used and instrument and equipment.
Summary of the invention
It is not enough that the purpose of this utility model is to overcome above-mentioned prior art, a kind of instrument box for current transformer end shield ground wire leakage current band electro-detection is provided, the insulating supporting leg that this instrument box adopts bakelite material to make, with connector, be connected with 4 hollow legs that this instrument box bottom arranges, required height in the time of this instrument box can being risen to survey crew operation, make this surveying work only need 1 people just can complete, improved operating efficiency, guarantee the person and the device security of whole surveying work, go back portability, deposit survey tool used and instrument and equipment.
The technical solution of the utility model is to solve like this:
Comprise the casing with 4 hollow legs, at box house, be respectively arranged with 7 storage tanks, be used for placing outfit, measuring instrument, connector and the insulating supporting leg made from bakelite material, be connected with casing, in use, required height when this instrument box is risen to survey crew operation, and insulate with the earth, it is convenient that various utensils are taken, placed to survey crew, improve operating efficiency, guaranteed the person and the device security of whole surveying work, carried in addition, deposited the function of measuring appliance used.
A kind of instrument box for current transformer end shield ground wire leakage current band electro-detection, combination is novel suitable, 7 storage tanks that arrange in casing, can place conventional utensil in the charged testing of current transformer end shield ground wire leakage current, easy to use, be specially adapted to the operation of current transformer end shield ground wire leakage current band electro-detection.
Accompanying drawing explanation
Accompanying drawing 1 is structural representation of the present utility model;
Accompanying drawing 2 is outline drawings of connector;
Accompanying drawing 3 is outline drawings of base;
Below in conjunction with 1 pair of content of the present utility model of accompanying drawing, be described in further detail;
Accompanying drawing 1 is structural representation of the present utility model, by casing (1), and connector (2), insulating supporting leg (3), base (4), storage tank (5) forms.
The specific embodiment:
A kind of instrument box for current transformer end shield ground wire leakage current band electro-detection, it is characterized in that: this instrument box is by casing (1), connector (2), insulating supporting leg (3), base (4), storage tank (5) forms, in accompanying drawing 1, 4 hollow legs that casing (1) is installed additional by the aluminium alloy box of selling on the market and lower box form, hollow legs is made by steel tubing, in equal fixation hollow leg one end, the position at four angles of lower box, the internal diameter of hollow legs is slightly larger than the external diameter of connector (2) small column, connector (2) is comprised of the small column at cylinder broad in the middle and coaxial upper two ends, by steel bar, be made, insulating supporting leg (3) is made with bakelite tubing, its length is 1.5 meters, base (4) is comprised of the cylinder of seam in disk and disc centre, the equal steel material of its material, in disc centre, the external diameter of cylinder is slightly less than the internal diameter of insulating supporting leg (3), storage tank (5) is processed into 7 storage tanks by wooden boards, during use, 4 hollow legs with one end connect box (1) bottom of connector (2), the other end of connector (2) is connected with one end of insulating supporting leg (3), the other end of insulating supporting leg (3) is connected with the cylinder on base (4), in storage tank (5), place the instrument and the instrument and equipment that in the operation of current transformer end shield ground wire leakage current band electro-detection, use, take said structure, during use, required height in the time of can making this instrument box rise to survey crew operation, and insulate with the earth, survey crew is taken, place various utensils convenient, both improved operating efficiency, guarantee again the person and the device security of whole surveying work.
Claims (1)
1. the instrument box for current transformer end shield ground wire leakage current band electro-detection, it is characterized in that: this instrument box is by casing (1), connector (2), insulating supporting leg (3), base (4), storage tank (5) forms, 4 hollow legs that casing (1) is installed additional by the aluminium alloy box of selling on the market and lower box form, hollow legs is made by steel tubing, in equal fixation hollow leg one end, the position at four angles of lower box, the internal diameter of hollow legs is slightly larger than the external diameter of connector (2) small column, connector (2) is comprised of the small column at cylinder broad in the middle and coaxial upper two ends, by steel bar, be made, insulating supporting leg (3) is made with bakelite tubing, its length is 1.5 meters, base (4) is comprised of the cylinder of seam in disk and disc centre, the equal steel material of its material, in disc centre, the external diameter of cylinder is slightly less than the internal diameter of insulating supporting leg (3), storage tank (5) is processed into 7 storage tanks by wooden boards, during use, 4 hollow legs with one end connect box (1) bottom of connector (2), the other end of connector (2) is connected with one end of insulating supporting leg (3), the other end of insulating supporting leg (3) is connected with the cylinder on base (4), in storage tank (5), place the instrument and the instrument and equipment that in the operation of current transformer end shield ground wire leakage current band electro-detection, use.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420323653.9U CN203875876U (en) | 2014-06-18 | 2014-06-18 | Appliance box for detecting leakage currents of end screen ground wire of current transformer in charging mode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420323653.9U CN203875876U (en) | 2014-06-18 | 2014-06-18 | Appliance box for detecting leakage currents of end screen ground wire of current transformer in charging mode |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203875876U true CN203875876U (en) | 2014-10-15 |
Family
ID=51676419
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420323653.9U Expired - Fee Related CN203875876U (en) | 2014-06-18 | 2014-06-18 | Appliance box for detecting leakage currents of end screen ground wire of current transformer in charging mode |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203875876U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104308821A (en) * | 2014-11-12 | 2015-01-28 | 国网河南省电力公司济源供电公司 | Special toolbox for collection system |
-
2014
- 2014-06-18 CN CN201420323653.9U patent/CN203875876U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104308821A (en) * | 2014-11-12 | 2015-01-28 | 国网河南省电力公司济源供电公司 | Special toolbox for collection system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141015 Termination date: 20170618 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |