CN101846720A - Test method for a cast-type mutual inductor for SF6 gas cabinet - Google Patents
Test method for a cast-type mutual inductor for SF6 gas cabinet Download PDFInfo
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- CN101846720A CN101846720A CN 201010162378 CN201010162378A CN101846720A CN 101846720 A CN101846720 A CN 101846720A CN 201010162378 CN201010162378 CN 201010162378 CN 201010162378 A CN201010162378 A CN 201010162378A CN 101846720 A CN101846720 A CN 101846720A
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- mutual inductor
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- gas cabinet
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Abstract
The invention discloses a test method for a cast-type mutual inductor for an SF6 gas cabinet, which comprises the following steps: pouring volatile insulating oil in a seal oil box with a cover; opening the cover, and then putting a mutual inductor to be tested in the oil box for carrying out the test; taking out the mutual inductor after the test is ended, and then covering the oil tank. The invention solves the problems of the primary power frequency withstand voltage and partial discharge capacity measuring test of the cast-type mutual inductor for the SF6 gas cabinet, and thereby, the test has simple operation, shortest used time and lowest cost.
Description
Technical field
The present invention relates to a kind of SF
6Gas cabinet cast-type mutual inductor test method.
Background technology
Be used in SF
6The gas cabinet cast-type mutual inductor is done industrial frequency withstand voltage and partial discharge quantity experiment with measuring, and existing method is the analog switch cabinet method of operation, is the SF of a simulation
6Gas cabinet.During test mutual inductor is placed in the cupboard, on the cabinet door closure,, then it is vacuumized, fill SF tight
6Gas is locked valve, test, the test finish after SF
6Gas recovery is put air into cupboard then in jar, the cabinet door is opened, and product is taken out in cupboard.
More than operation has two defectives:
The first, the time spent is oversize, 1 hour single test time spent, can only test 2-3 product at every turn, and that is to say and test twenties products at most every day that this can't satisfy production requirement at all;
The second, be the cost height, 1 jar of SF
6Gas is near ten thousand yuan, and every jar of gas is probably tested more than 30 mutual inductor, and so only this every mutual inductor experimentation cost increases more than 300 yuan.
Therefore, above-mentioned test method haves much room for improvement really.The inventor furthers investigate this, has this case to produce eventually.
Summary of the invention
The object of the present invention is to provide a kind of SF
6Gas cabinet cast-type mutual inductor test method is to solve SF
6Gas cabinet is with industrial frequency withstand voltage of cast-type mutual inductor and partial discharge quantity experiment with measuring problem, and it is the shortest to make it to test the time spent, and experimentation cost is minimum.
In order to reach above-mentioned purpose, solution of the present invention is:
A kind of SF
6Gas cabinet cast-type mutual inductor test method is poured the volatility insulating oil in a leakproof fuel cell with lid; Uncap is put into fuel tank with mutual inductor to be tested, and tests; After test is finished, take out mutual inductor, cover lid again.
Described volatility insulating oil is selected the FOX insulating oil for use.
After adopting such scheme, the present invention replaces SF with insulating oil
6Industrial frequency withstand voltage of gas test cast-type mutual inductor and measurement of partial discharge, insulating oil compares SF
6Gas carry out the mutual inductor high-potting have simple to operate, the time spent is few and low cost and other advantages, and is the same aspect test effect, insulating oil is bonded at mutual inductor and just vapors away after static a period of time of surface, and the mutual inductor product is not had influence.
Below in conjunction with drawings and Examples the present invention is done and to describe in further detail.
Description of drawings
Fig. 1 is a schematic flow sheet of the present invention.
Embodiment
As shown in Figure 1, a kind of SF of the present invention's announcement
6Gas cabinet cast-type mutual inductor test method the steps include:
At first, in a leakproof fuel cell with lid, pour the volatility insulating oil into; The volatility insulating oil selects for use Xiamen three to grind the FOX insulating oil that dynamo-electric company limited produces; The time spent does not cover lid at ordinary times, prevents the oil volatilization.
In the time will testing, uncap, a mutual inductor 2-3 crane to be tested is lifted up in the fuel tank, make it all be immersed in the oil, operating personnel put on special-purpose protective gloves, ground wire on secondary and ground low-voltage terminal and the fuel tank is connected together, again HV Terminal is connected on the high pressure, can test.Test;
After test is finished, circuit is untied, with crane the mutual inductor product is taken out, be hung on the special-purpose planker, the lid that covers fuel tank again gets final product.
Principle of the present invention is:
SF
6Why industrial frequency withstand voltage of gas cabinet cast-type mutual inductor and partial discharge quantity experiment with measuring will be placed on the SF of simulation
6Carrying out in the gas cabinet, is exactly because SF
6Be a kind of insulating gas, it has been equivalent to increase the creep distance of product, so the volume of mutual inductor can be done very for a short time, and very light in weight.Such product carries out high-potting as if being placed in the air, can discharge because creep distance is not enough.That is to say if there is other insulating material can substitute SF
6Increase the creep distance of product, carrying out an industrial frequency withstand voltage is the same with partial discharge quantity experiment with measuring effect.The inventor is used to replace SF through studying, test, having found out
6Insulating material, selected insulating oil, but it is not general insulating oil, except possessing other insulating oil performance, more main is that volatility will be arranged, after mutual inductor took out from oil, being attached to top oil after static a period of time will vapor away, final resin surface with put into oil test before be the same.The time long oil is dirty can to filter utilization again.
When having saved test, the present invention vacuumizes, fill SF
6Gas and recovery SF
6Steps such as gas, simple to operate, tested each test period only 10 minutes with insulating oil, and SF
6Test is 50 minutes in the gas, only is tens yuan with every this cost of mutual inductor of insulating oil test, and SF
6Every cost of test is 300 yuan in the gas.
Claims (2)
1. SF
6Gas cabinet cast-type mutual inductor test method is characterized in that: pour the volatility insulating oil in a leakproof fuel cell with lid; Uncap is put into fuel tank with mutual inductor to be tested, and tests; After test is finished, take out mutual inductor, cover lid again.
2. a kind of according to claim 1 SF
6Gas cabinet cast-type mutual inductor test method is characterized in that: described volatility insulating oil is selected the FOX insulating oil for use.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010162378 CN101846720A (en) | 2010-04-23 | 2010-04-23 | Test method for a cast-type mutual inductor for SF6 gas cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010162378 CN101846720A (en) | 2010-04-23 | 2010-04-23 | Test method for a cast-type mutual inductor for SF6 gas cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101846720A true CN101846720A (en) | 2010-09-29 |
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ID=42771402
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010162378 Pending CN101846720A (en) | 2010-04-23 | 2010-04-23 | Test method for a cast-type mutual inductor for SF6 gas cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101846720A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2558055Y (en) * | 2002-07-19 | 2003-06-25 | 桂林电力电容器总厂 | Capacitance type voltage inductor |
| CN2898849Y (en) * | 2006-04-24 | 2007-05-09 | 冉正华 | Automatic checking platform of movable gas relay |
| CN2927059Y (en) * | 2006-06-16 | 2007-07-25 | 何泽坚 | High-pressure gauging box |
| CN101408578A (en) * | 2008-11-21 | 2009-04-15 | 重庆大学 | Multiple factors accelerated aging test apparatus and method for oil paper insulation of transformer |
-
2010
- 2010-04-23 CN CN 201010162378 patent/CN101846720A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2558055Y (en) * | 2002-07-19 | 2003-06-25 | 桂林电力电容器总厂 | Capacitance type voltage inductor |
| CN2898849Y (en) * | 2006-04-24 | 2007-05-09 | 冉正华 | Automatic checking platform of movable gas relay |
| CN2927059Y (en) * | 2006-06-16 | 2007-07-25 | 何泽坚 | High-pressure gauging box |
| CN101408578A (en) * | 2008-11-21 | 2009-04-15 | 重庆大学 | Multiple factors accelerated aging test apparatus and method for oil paper insulation of transformer |
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Application publication date: 20100929 |