CN106248367A - Loaded switch gas relay static state acting characteristic pilot system and test method - Google Patents
Loaded switch gas relay static state acting characteristic pilot system and test method Download PDFInfo
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- CN106248367A CN106248367A CN201610815782.3A CN201610815782A CN106248367A CN 106248367 A CN106248367 A CN 106248367A CN 201610815782 A CN201610815782 A CN 201610815782A CN 106248367 A CN106248367 A CN 106248367A
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- loaded switch
- gas relay
- valve
- grease chamber
- gas
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
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- General Physics & Mathematics (AREA)
- Transformer Cooling (AREA)
Abstract
The invention discloses a kind of loaded switch gas relay static state acting characteristic pilot system and test method, it is characterized in that pilot system includes: loaded switch conservator, loaded switch body grease chamber and pressurized reservoir；The outlet line of loaded switch conservator is communicated to loaded switch body grease chamber through tested gas relay and the 3rd valve V3 successively；The outlet line of pressurized reservoir is communicated to loaded switch body grease chamber through the second valve V2；The gas-pressurized the first valve V1 in gas piping and gas piping accesses and adds QI KOU at pressurized reservoir；It is communicated with air tube at the top of loaded switch conservator.The present invention is used for carrying out gas relay acting characteristic experimental study, selects suitable gas relay action setting valve, to ensure load switch of transformer operational reliability.
Description
Technical field
The present invention relates to loaded switch non-electricity protecting device attribute testing field, more specifically loaded switch gas
Relay static state acting characteristic pilot system and test method.
Background technology
Gas relay is the non-electricity protecting device in a kind of pipeline being installed between loaded switch grease chamber and conservator.
When having catastrophe failure inside loaded switch, insulating oil decomposes in a large number, and the gas of generation causes oil flow surge, makes gas relay
Contact action, connect the control loop specified, make the circuit breaker trip of transformator, thus avoid or limit loaded switch and change
The damage of depressor.
In early days, domestic loaded switch is generally only applied to 110kV and following low capacity (50MVA and following) transformator
On, the setting valve of the loaded switch heavy gas flow speed 1.0m/s proposed at that time, prove suitable through practice test for many years, energy
Enough when loaded switch breaks down in time, precision maneuver to be to avoid fault to expand further.Meanwhile, load can be prevented effectively from
Switch occurs grave gas malfunction in normal handoff procedure.Along with Chinese national economy and society's speed development, transformator separate unit holds
Amount also shows a rising trend, and for 220kV transformator, before 2006, new transformator of throwing is substantially based on separate unit 120MVA,
A small amount of is 150MVA；After 2008, start that separate unit 180MVA transformator occurs in a large number；After 2011, new throwing transformator base
There is separate unit 240MVA transformator the most in a large number based on separate unit 180MVA in this.So, when loaded switch normally switches, its
Cause oil flow surge to obtain greatly compared with the transformator of low capacity, put out in the oil joined on this high voltage, high-power transformer
Arc loaded switch, even switching normally, its arc energy produces built-in electrical insulation oil and springs up than low-voltage, low capacity transformation
The switching generation of device loaded switch springs up much bigger, adjusts standard if continuing to continue to use 1.0m/s grave gas action, it is likely that cause
Gas relay misoperation is there is in loaded switch in normal handoff procedure.It is therefore desirable to loaded switch gas relay
Actual act characteristic carry out experimental study.
Summary of the invention
The present invention is for avoiding the weak point existing for above-mentioned prior art, it is provided that a kind of loaded switch gas relay
Static acting characteristic pilot system and test method, in order to carry out gas relay acting characteristic experimental study, select suitably
Gas relay action setting valve, it is to avoid high-power transformer loaded switch gas relay misoperation, ensures that transformator has load
Switch operational reliability.
The present invention solves that technical problem adopts the following technical scheme that
The feature of loaded switch gas relay static state acting characteristic pilot system of the present invention is that described pilot system includes:
Loaded switch conservator, loaded switch body grease chamber and pressurized reservoir；
The outlet line of described loaded switch conservator has been communicated to load has opened through tested gas relay and the 3rd valve V3 successively
Close body grease chamber；The outlet line of described pressurized reservoir is communicated to loaded switch body grease chamber through the second valve V2；Gas-pressurized warp
The first valve V1 in gas piping and gas piping accesses and adds QI KOU at pressurized reservoir；Top at described loaded switch conservator
It is communicated with air tube.
The construction features of loaded switch gas relay static state acting characteristic pilot system of the present invention lies also in: described in have load
The 20% of the volume that volume is loaded switch body grease chamber of switch conservator；The volume of described pressurized reservoir is loaded switch body
The 30% of the volume of grease chamber.
The feature of the test method of loaded switch gas relay static state acting characteristic pilot system of the present invention is by as follows
Step is carried out:
Step 1: fill oil in loaded switch body grease chamber, is injected separately in loaded switch conservator and pressurized reservoir and accounts for
The oil mass of each self-capacity 1/2, closes the 3rd valve V3, opens the first valve V1 and the second valve V2, injects gas by the first valve V1 and makes
Pressurized reservoir and loaded switch body grease chamber reach the force value set, and complete pressurization；
Step 2: when described pressurized reservoir and loaded switch body grease chamber reach the force value set, close the first valve V1
With the second valve V2, open the 3rd valve V3, discharge pressure by gas relay and the 3rd valve V3, make in loaded switch body grease chamber
Fluid produce spring up, formed flow velocity, test the action situation of tested gas relay, it is thus achieved that the oil of loaded switch body grease chamber
Chamber internal pressure value and the action corresponding relation of tested gas relay.
The feature of the test method of loaded switch gas relay static state acting characteristic pilot system of the present invention lies also in: profit
The actuating signal node configured with tested gas relay, judges by gas testing according to the actuating signal of described actuating signal node
The whether action of body relay；Gas pressure is applied by Approach by inchmeal principle；When after the action for the first time of tested gas relay, continue
Increase gas pressure, until tested gas relay the most all can action message；Setting action frequency according to loaded switch is true
Determine test number (TN), by result of the test is carried out statistical analysis, determine that the static activation pressure of tested gas relay is interval.
Compared with the prior art, the present invention has the beneficial effect that:
1, the present invention by applying grease chamber when certain pressure simulates loaded switch fault to loaded switch body grease chamber
Internal pressure raises, and on the one hand avoids use heavy current tester, reduces assay device complexity；The most permissible
Convenient and swift adjustment loaded switch body grease chamber internal pressure value, it is simple to adapt to various test demand.
2, assay device of the present invention is used various model gas relays can be carried out test, for grasping gas relay
Device actual act characteristic, the gas relay choosing suitable setting valve have important function.
Accompanying drawing explanation
Fig. 1 is present configuration schematic diagram；
Label in figure: 1 gas relay, 2 pressurized reservoirs, 3 loaded switch body grease chambeies, 4 loaded switch conservators.
Detailed description of the invention
Seeing Fig. 1, in the present embodiment, loaded switch gas relay static state acting characteristic pilot system includes: loaded switch
Conservator 4, loaded switch body grease chamber 3 and pressurized reservoir 2.
The outlet line of loaded switch conservator 4 is communicated to loaded switch through tested gas relay 1 and the 3rd valve V3 successively
Body grease chamber 3；The outlet line of pressurized reservoir 2 is communicated to loaded switch body grease chamber 3 through the second valve V2；Gas-pressurized is through gas
The first valve V1 in pipeline and gas piping accesses and adds QI KOU at pressurized reservoir 2；It is communicated with at the top of loaded switch conservator 4
Air tube.
In the present embodiment, be provided with load switch conservator 4 the volume that volume is loaded switch body grease chamber 3 20%；Add
The volume of force feed case 2 is the 30% of the volume of loaded switch body grease chamber 3.
In the present embodiment, the test method of loaded switch gas relay static state acting characteristic pilot system is by following step
Suddenly carry out:
Step 1: fill oil in loaded switch body grease chamber 3, notes in loaded switch conservator 4 and pressurized reservoir 2 respectively
Enter the oil mass accounting for each self-capacity 1/2, close the 3rd valve V3, open the first valve V1 and the second valve V2, inject gas by the first valve V1
Body makes pressurized reservoir 2 and loaded switch body grease chamber 3 reach the force value set, and completes pressurization.
Step 2: pressurized reservoir 2 and loaded switch body grease chamber 3 reach set force value time, close the first valve V1 and
Second valve V2, opens the 3rd valve V3, quickly discharges pressure by gas relay 1 and the 3rd valve V3, make this body oils of loaded switch
Fluid in room 3 produces and springs up, and forms flow velocity, the action situation of test gas relay 1, it is thus achieved that loaded switch body grease chamber 3
The corresponding relation of action of grease chamber's internal pressure value and gas relay 1；In order to realize Quick Depressurization, the 3rd valve V3 uses fast
Valve opening.
In the present embodiment the test method of loaded switch gas relay static state acting characteristic pilot system be utilize tested
The actuating signal node that gas relay 1 is configured, judges tested gas relay 1 according to the actuating signal of actuating signal node
Whether action；Gas pressure is applied by Approach by inchmeal principle；When, after the action for the first time of tested gas relay 1, continuing to increase gas
Body pressure, until tested gas relay 1 the most all can action message；Setting action frequency according to loaded switch determines test
Number of times, by result of the test is carried out statistical analysis, determines that the static activation pressure of tested gas relay 1 is interval.
The present invention is by grease chamber's internal pressure liter during loaded switch body grease chamber applying pressure simulation loaded switch fault
Height, the electromagnetic valve that then moment unlatching is arranged in tested gas relay pipeline discharges this pressure, so that loaded switch is originally
Insulating oil in body oils room produces and springs up, and forms flow velocity, tests gas relay action situation, final acquisition grease chamber internal pressure
Value and the corresponding relation of gas relay action.
CMD III-1000Y/126C-10193W the loaded switch selecting Huaming, Shanghai company to produce is opened as the load that has tested
Closing body grease chamber, it fills oil mass is 155kg；The volume of loaded switch conservator is the 20% of loaded switch body grease chamber, in examination
Before testing beginning, loaded switch conservator injects the oil mass of 1/2；Pressurized reservoir is cylinder, and its capacity is loaded switch body
The 30% of grease chamber, before on-test, injects 1/2 oil mass in pressurized reservoir.That injects in all fuel tanks is Xinjiang carat
Agate depends on No. 25 oil.Pressurize gases used for air.
It is also equipped with Explosion-proof cap as error protection in view of loaded switch in actual moving process, moves according to gas relay
Make formerly, the posterior matching relationship of Explosion-proof cap explosion, take Explosion-proof cap specified operating pressure 240kpa.Owing to the most domestic has load
The heavy gas flow speed definite value of switching gas relay is all designed by 1.0m/s standard.Therefore, according to test needs, customize
The gas relay of four kinds of specifications such as 1.0m/s, 1.5m/s, 2.0m/s, 2.5m/s, as shown in table 1 below:
Table 1 gas relay test product situation
| Sequence number | Gas relay model | Setting valve (m/s) | Remarks |
| Test product 1 | URF25/10 | 1.0 | Germany EMB |
| Test product 2 | URF25/10 | 1.5 | Germany EMB |
| Test product 3 | URF25/10 | 2.0 | Germany EMB |
| Test product 4 | URF25/10 | 2.5 | Germany EMB |
Gas relay is furnished with actuating signal node, judges gas relay whether action according to actuating signal.By gradually
Approach principle and apply gas pressure；When, after gas relay action for the first time, continuing to increase gas pressure, until gas relay
The most all can action message.Require according to loaded switch operation instructions: loaded switch 5000 needs of switching overhaul, because of
This respectively gas relay to four specifications carried out 5000 tests, and 5000 result of the tests are carried out statistical analysis.
Result of the test shows, for the gas relay of setting valve 1.0m/s, the internal actual act in test switch grease chamber is quiet
State force value > 80kPa, gas relay operating pressure is interval and action percentage ratio situation is as shown in table 2:
The gas relay operating pressure interval of table 2 setting valve 1.0m/s and action frequency situation
For the gas relay of setting valve 1.5m/s, the internal actual act static pressure force value in test switch grease chamber > 99
KPa, gas relay operating pressure is interval and action percentage ratio situation is as shown in table 3:
The gas relay operating pressure interval of table 3 setting valve 1.5m/s and action frequency situation
For the gas relay of setting valve 2.0m/s, the internal actual act static pressure force value in test switch grease chamber >
110kPa, gas relay operating pressure is interval and action percentage ratio situation is as shown in table 4:
The gas relay operating pressure interval of table 4 setting valve 2.0m/s and action frequency situation
For the gas relay of setting valve 2.5m/s, the internal actual act static pressure force value in test switch grease chamber >
148kPa, gas relay operating pressure is interval and action percentage ratio situation is as shown in table 5:
The gas relay operating pressure interval of table 5 setting valve 2.5m/s and action frequency situation
Claims (4)
1. loaded switch gas relay static state acting characteristic pilot system, is characterized in that described pilot system includes: have load to open
Close conservator (4), loaded switch body grease chamber (3) and pressurized reservoir (2)；
The outlet line of described loaded switch conservator (4) has been communicated to load through tested gas relay (1) and the 3rd valve V3 successively
Switch main body grease chamber (3)；The outlet line of described pressurized reservoir (2) is communicated to loaded switch body grease chamber (3) through the second valve V2；
The gas-pressurized the first valve V1 in gas piping and gas piping accesses and adds QI KOU at pressurized reservoir (2)；Load is had described
The top of switch conservator (4) is communicated with air tube.
Loaded switch gas relay static state acting characteristic pilot system the most according to claim 1, is characterized in that: described
The volume of loaded switch conservator (4) is the 20% of the volume of loaded switch body grease chamber (3)；The volume of described pressurized reservoir (2)
For the volume of loaded switch body grease chamber (3) 30%.
3. a test method for loaded switch gas relay static state acting characteristic pilot system described in claim 1, it is special
Levy is to carry out as follows:
Step 1: fill oil in loaded switch body grease chamber (3), in loaded switch conservator (4) and pressurized reservoir (2) respectively
Inject the oil mass accounting for each self-capacity 1/2, close the 3rd valve V3, open the first valve V1 and the second valve V2, injected by the first valve V1
Gas makes pressurized reservoir (2) and loaded switch body grease chamber (3) reach the force value set, and completes pressurization；
Step 2: when described pressurized reservoir (2) and loaded switch body grease chamber (3) reach the force value set, close the first valve
V1 and the second valve V2, opens the 3rd valve V3, discharges pressure by gas relay (1) and the 3rd valve V3, makes loaded switch body
Fluid in grease chamber (3) produces and springs up, and forms flow velocity, tests the action situation of tested gas relay (1), it is thus achieved that loaded switch
Grease chamber's internal pressure value of body grease chamber (3) and the action corresponding relation of tested gas relay (1).
The test method of loaded switch gas relay static state acting characteristic pilot system the most according to claim 3, its
Feature is: utilize the actuating signal node that tested gas relay (1) is configured, and believes according to the action of described actuating signal node
Number judge tested gas relay (1) whether action；Gas pressure is applied by Approach by inchmeal principle；When tested gas relay
(1) after action for the first time, continue to increase gas pressure, until tested gas relay (1) the most all can action message；According to having
The setting action frequency of load switch determines test number (TN), by result of the test is carried out statistical analysis, determines tested gas relay
The static activation pressure of device (1) is interval.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610815782.3A CN106248367A (en) | 2016-09-12 | 2016-09-12 | Loaded switch gas relay static state acting characteristic pilot system and test method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610815782.3A CN106248367A (en) | 2016-09-12 | 2016-09-12 | Loaded switch gas relay static state acting characteristic pilot system and test method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106248367A true CN106248367A (en) | 2016-12-21 |
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ID=57598757
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610815782.3A Pending CN106248367A (en) | 2016-09-12 | 2016-09-12 | Loaded switch gas relay static state acting characteristic pilot system and test method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110441676A (en) * | 2019-08-06 | 2019-11-12 | 国家电网有限公司 | Loaded tap switch oil current relay acting characteristic pilot system and test method |
| CN113075538A (en) * | 2021-03-17 | 2021-07-06 | 广东电网有限责任公司电力科学研究院 | Monitoring method, monitoring device and monitoring system for on-load tap-changer |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2101232U (en) * | 1990-12-08 | 1992-04-08 | 冉国富 | Portable special gas relay checking bench |
| KR20110041724A (en) * | 2009-10-16 | 2011-04-22 | 한전케이피에스 주식회사 | Test equipment for buchholz relay |
| CN202453468U (en) * | 2012-01-11 | 2012-09-26 | 邢台兴力集团有限公司 | Checking device for gas relay |
| CN103048614A (en) * | 2012-12-11 | 2013-04-17 | 上海市电力公司 | Portable type gas relay scene calibrator |
| CN205981674U (en) * | 2016-09-12 | 2017-02-22 | 国家电网公司 | Static operating characteristic testing system of on -load switch buchholz relay |
-
2016
- 2016-09-12 CN CN201610815782.3A patent/CN106248367A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2101232U (en) * | 1990-12-08 | 1992-04-08 | 冉国富 | Portable special gas relay checking bench |
| KR20110041724A (en) * | 2009-10-16 | 2011-04-22 | 한전케이피에스 주식회사 | Test equipment for buchholz relay |
| CN202453468U (en) * | 2012-01-11 | 2012-09-26 | 邢台兴力集团有限公司 | Checking device for gas relay |
| CN103048614A (en) * | 2012-12-11 | 2013-04-17 | 上海市电力公司 | Portable type gas relay scene calibrator |
| CN205981674U (en) * | 2016-09-12 | 2017-02-22 | 国家电网公司 | Static operating characteristic testing system of on -load switch buchholz relay |
Non-Patent Citations (2)
| Title |
|---|
| 丁国成 等: "大容量变压器用国产有载开关重瓦斯整定值试验研究", 《变压器》 * |
| 刘旸 等: "变压器有载开关气体继电器误动的试验模拟研究", 《变压器》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110441676A (en) * | 2019-08-06 | 2019-11-12 | 国家电网有限公司 | Loaded tap switch oil current relay acting characteristic pilot system and test method |
| CN113075538A (en) * | 2021-03-17 | 2021-07-06 | 广东电网有限责任公司电力科学研究院 | Monitoring method, monitoring device and monitoring system for on-load tap-changer |
| CN113075538B (en) * | 2021-03-17 | 2022-08-23 | 广东电网有限责任公司电力科学研究院 | Monitoring method, monitoring device and monitoring system for on-load tap-changer |
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Application publication date: 20161221 |
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