CN106199410A - Transformator instantaneous relay calibration steps - Google Patents
Transformator instantaneous relay calibration steps Download PDFInfo
- Publication number
- CN106199410A CN106199410A CN201610502415.8A CN201610502415A CN106199410A CN 106199410 A CN106199410 A CN 106199410A CN 201610502415 A CN201610502415 A CN 201610502415A CN 106199410 A CN106199410 A CN 106199410A
- Authority
- CN
- China
- Prior art keywords
- relay
- transformator
- pressure
- school
- instantaneous
- 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.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/327—Testing of circuit interrupters, switches or circuit-breakers
- G01R31/3277—Testing of circuit interrupters, switches or circuit-breakers of low voltage devices, e.g. domestic or industrial devices, such as motor protections, relays, rotation switches
- G01R31/3278—Testing of circuit interrupters, switches or circuit-breakers of low voltage devices, e.g. domestic or industrial devices, such as motor protections, relays, rotation switches of relays, solenoids or reed switches
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The invention belongs to transformator non-electricity protecting device collimation technique field, a kind of transformator instantaneous relay calibration steps especially set out, the detection for transformator instantaneous relay provides foundation.The inventive method can fill up the blank of this technical field, and the quick-acting oil pressure relay for trans former calibrating standard used in also having worked out Liaoning Electric Power system according to this method.Make similar technique inside the province have unified standard, the calibration of transformator instantaneous relay has been had unified standard, has also easily facilitated management.The safe operation of power equipment has been had more reliable technical guarantee by the enforcement of calibration steps of the present invention and specification, and its application also provides strong technical basis for this type of norm-setting of National Power System in future.
Description
Technical field
The invention belongs to transformator non-electricity protecting device collimation technique field, a kind of transformator quick-action especially set out
Relay calibration steps, the detection for transformator instantaneous relay provides foundation.
Background technology
Quick oil pressure relay is mainly used in the protection of oil-immersed type power equipment, mainly power transformer and reactor,
When the inside transformer being currently running breaks down, the pressure x velocity within the unit interval of the transformer oil in fuel tank rises up to
To adjust limit value time, the rapid action of quick oil pressure relay, and make control loop send alarm signal in time, make transformator exit
Running status, thus reach power equipment effective and safe protection purpose.At present, quick-acting oil pressure relay for trans former is at China's electricity
Force system is applied widely, for ensureing it accurately and reliably, it is carried out accurate calibration, the most necessary.Due to domestic at present the most still
Specification without respective alignment, the amount biography work of this instrument is in blind area.
Summary of the invention
For above-mentioned technical problem present in prior art, the invention provides a kind of transformator instantaneous relay school
Quasi-method.Purpose is to make the aspects such as calibration item, calibration steps, the requirement of standard and technology requirement accomplish that specification is united
One.
The present invention realizes goal of the invention the technical scheme is that transformator instantaneous relay calibration steps, including
Following several:
(1) prepare before calibration: should be placed under the conditions of calibration environment no less than 2 hours by school relay；Relay checking instrument leads to
More than electric preheating 30min；
(2) insulation resistance test: use rated voltage 500V, the range insulation resistance meter not less than 500M Ω during test, measure
Insulation resistance between connection point terminal and shell；
(3) acting characteristic test: include that action connection point is tested；After relay checking instrument energising preheating, first, the tested relay of typing
The essential information of device: specifications and models, factory number, factory, verification number of times, seal pressure and sealing duration；Next selects report
Alert joint type: single warning, warning+static pressure, double knock；Then acting characteristic test point is selected according to relay types；Above
After step confirms, verification can be started.
(4) seal tightness test: after acting characteristic has been tested, according to choosing seal pressure and sealing duration, confirms
After, continue on relay checking instrument, carry out sealing property verification；Relay entirety should be able to bear 100kPa normal pressure
Oil test, lasts 60min ne-leakage phenomenon；
(5) electrical strength test: use proof voltage tester, under electroless state, by proof voltage tester and by school relay
Device terminal connects, and after confirming that line is correct, energising also applies 2kV voltage between terminal, continues 1min, must not have heating,
Puncture, flashover.
(6) data preserve and print: after verification is fully completed, verified data are preserved and printed；
Described is 1 year by the time interval of resuming classes of school relay, send school unit autonomous also dependent on actually used situation
Determine to resume classes time interval.
The described detection method by school relay is: when transformator is properly functioning, because of quick oil pressure relay installation position
Setting low in transformer oil upper thread, relay grease chamber with oil tank of transformer even, isolates corrugated tube and is subject to less quiet oil pressure in grease chamber,
This quiet oil pressure is compensated and reaches balance by relay air chamber inner spring, and now relay will not action；When inside transformer is sent out
During raw fault, the rate of pressure change within the unit interval of the transformer oil in fuel tank raises when reaching to adjust limit value, quick-action oil
Isolation corrugated tube compressive deformation in potential relay, the pressure in relay air chamber raises, and operation corrugated tube is subjected to displacement, fine motion
Switch rapid action, and make control loop send alarm signal in time and cut off the electricity supply rapidly, make transformator state out of service,
Thus realize the protection that transformer safety is run.
Described by school relay for quick oil pressure relay.
Described relay checking instrument is quick-acting oil pressure relay for trans former tester.
Described quick-acting oil pressure relay for trans former tester is that one is specifically designed to and continues transformator quick-action oil pressure
Electric property carries out the equipment detected, and it is mainly when breaking down inside analogue transformer, quick oil pressure relay action machine
Reason, uses microcomputer measuring and controlling technology, and by calculating and controlling pressure jump speed, automatic inflatable/air Real-time Collection is from sensor
Signal, verifies relay in authorized pressure mutational range；It is substantially carried out the verification of acting characteristic and sealing property；Institute
The pressure changeable rate of climb stated, refers to the numerical value that pressure rises in the unit interval, and unit is kPa/s.
Described by school relay, the detection of its performance is mainly effective to its acting characteristic and sealing property and contact action
Property verification: acting characteristic verification time need to arrange nine kinds of rate of pressure rises；And measure action response time；Sealing property
Need during verification set initial pressure and seal duration；I.e. use special calibration equipment, when analogue transformer breaks down, speed
Dynamic oil pressure relay action mechanism, uses microcomputer measuring and controlling technology, by calculating and controlling pressure jump speed, automatic inflatable QI excess
Time gather from the signal of sensor, in authorized pressure mutational range, relay is verified.
Described by school relay, its calibration condition is:
(1) ambient temperature: (20 ± 5) DEG C；
(2) ambient humidity: be not more than 85%RH；
(3) contextual vicinity residing for calibration is without affecting mechanical vibration and the external magnetic field of reading.
The described main engine power by school relay is 500W, pressure detecting range: 0～400kPa, raising speed on pressure
Rate scope: 0～500kPa/s, class of accuracy 1.0 grades；The output voltage of described insulation resistance meter is 500VDC, accurately
Degree grade is not less than 10 grades；The output voltage 0～3000VAC of described proof voltage tester, degree of stability is not less than 1%.
Advantages of the present invention and having the beneficial effect that:
The inventive method can fill up the blank of this technical field, and also worked out Liaoning Electric Power system according to this method
The quick-acting oil pressure relay for trans former calibrating standard used in system.Make similar technique inside the province have unified standard, make
The calibration of transformator instantaneous relay there is is unified standard, has also easily facilitated management.Calibration steps of the present invention and specification
Implementing that the safe operation of power equipment has been had more reliable technical guarantee, its application is also these type of rule of National Power System in future
Model is formulated provides strong technical basis.
Below in conjunction with specific embodiment, the present invention is described in further detail.
Detailed description of the invention
The present invention is a kind of transformator instantaneous relay calibration steps, just advises JJF1071-according to national measurement technical
2010 " national measurement calibrating standard redaction rule " requirement, have developed the present invention, and has worked out " transformator speed
Motor type relay calibrating standard ".
Transformator instantaneous relay calibration steps, including following several:
(1) prepare before calibration: should be placed under the conditions of calibration environment no less than 2 hours by school relay；Relay checking instrument leads to
More than electric preheating 30min；
(2) insulation resistance test: use rated voltage 500V, the range insulation resistance meter not less than 500M Ω during test, measure
Insulation resistance between connection point terminal and shell；
(3) acting characteristic test: include that action connection point is tested；After relay checking instrument energising preheating, first, the tested relay of typing
The essential information of device: specifications and models, factory number, factory, verification number of times, seal pressure and sealing duration；Next selects report
Alert joint type: single warning, warning+static pressure, double knock；Then acting characteristic test point is selected according to relay types；Above
After step confirms, verification can be started.
(4) seal tightness test:
After acting characteristic has been tested, according to choosing seal pressure and sealing duration, after confirmation, continue at relay
Sealing property verification is carried out on tester；Relay entirety should be able to bear the oil test of 100kPa normal pressure, lasts
60min ne-leakage phenomenon；
(5) electrical strength test:
Use proof voltage tester, under electroless state, proof voltage tester is connected with by school relay terminal, just confirm line
After Que, energising also applies 2kV voltage between terminal, continues 1min, must not have heating, puncture, flashover.
(6) data preserve and print:
After verification is fully completed, verified data are preserved and print；
Described is 1 year by the time interval of resuming classes of school relay, send school unit autonomous also dependent on actually used situation
Determine to resume classes time interval.
The described detection method by school relay is: when transformator is properly functioning, because of quick oil pressure relay installation position
Setting low in transformer oil upper thread, relay grease chamber with oil tank of transformer even, isolates corrugated tube and is subject to less quiet the grease chamber in
Oil pressure, this quiet oil pressure is compensated and reaches balance by relay air chamber inner spring, and now relay will not action；When in transformator
When portion breaks down, the rate of pressure change within the unit interval of the transformer oil in fuel tank raises when reaching to adjust limit value, speed
Isolation corrugated tube compressive deformation in dynamic oil pressure relay, the pressure in relay air chamber raises, and operation corrugated tube is subjected to displacement,
The rapid action of microswitch, and make control loop send alarm signal in time and cut off the electricity supply rapidly, make transformator out of service
State,
Thus realize the protection that transformer safety is run.
Described by school relay, its calibration condition is:
(1) ambient temperature: (20 ± 5) DEG C；
(2) ambient humidity: be not more than 85%RH；
(3) contextual vicinity residing for calibration is without affecting mechanical vibration and the external magnetic field of reading.
Specification of the present invention defines the vocabulary of terms that transformator instantaneous relay is relevant；Quick oil pressure relay (Quick
Action Oil-Pressure Relay): when the inside transformer being currently running breaks down, the transformation in fuel tank
Device oil rate of pressure change within the unit interval raises when reaching to adjust limit value, the rapid action of quick oil pressure relay, and makes
Control loop and send alarm signal in time, make transformator state out of service, thus realize the protection that transformer safety is run.
Quick-acting oil pressure relay for trans former tester.
Quick-acting oil pressure relay for trans former tester is that one is specifically designed to quick-acting oil pressure relay for trans former
The equipment detected, when its major function is to break down inside analogue transformer, quick oil pressure relay action can be carried out
Mechanism, uses microcomputer measuring and controlling technology, and by calculating and controlling pressure jump speed, automatic inflatable/air Real-time Collection is from sensor
Signal, in authorized pressure mutational range, relay is verified.It is substantially carried out the verification of acting characteristic and sealing property.
Rate of pressure rise: referring to the numerical value that pressure rises in the unit interval, unit is kPa/s.
Quick-acting oil pressure relay for trans former performance is detected, mainly to its acting characteristic and sealing property and
The verification of contact action effectiveness: need to arrange nine kinds of rate of pressure rises during acting characteristic verification；And measure action sound
Between Ying Shi.Need during the verification of sealing property set initial pressure and seal duration.Special calibration equipment, simulation is i.e. used to become
When depressor breaks down, quick oil pressure relay action mechanism, use microcomputer measuring and controlling technology, by calculating and controlling pressure jump
Speed, relay, from the signal of sensor, is verified in authorized pressure mutational range by automatic inflatable/air Real-time Collection.
The meter characteristic of heretofore described quick-acting oil pressure relay for trans former is as follows:
1, seal request: during routine test, relay entirety should be able to be born the oil test of 100kPa normal pressure, be lasted 60min
Ne-leakage phenomenon.
2, seal request: during routine test, relay entirety should be able to be born the oil test of 100kPa normal pressure, be lasted
60min ne-leakage phenomenon.
3, warning contact: being divided into single group alarm and two group alarm contact action tests, contact output signal answers accurate and effective.
4, insulation resistance: under calibration condition, the insulation resistance between relay tip terminal and shell is no less than 20M
Ω。
5, electrical strength requires: between binding post and should be able to bear the industrial frequency withstand voltage test of 2kV over the ground, continue 1min, no
Allowed to puncture, flashover.
Heretofore described specification defines the calibration condition of transformator instantaneous relay:
1. ambient temperature: (20 ± 5) DEG C；
2. ambient humidity: be not more than 85%RH；
3. the contextual vicinity residing for calibration is without affecting mechanical vibration and the external magnetic field of reading.
Claims (7)
1. transformator instantaneous relay calibration steps, is characterized in that: include following several:
(1) prepare before calibration: should be placed under the conditions of calibration environment no less than 2 hours by school relay；Relay checking instrument leads to
More than electric preheating 30min；
(2) insulation resistance test: use rated voltage 500V, the range insulation resistance meter not less than 500M Ω during test, measure
Insulation resistance between connection point terminal and shell；
(3) acting characteristic test: include that action connection point is tested；After relay checking instrument energising preheating, first, the tested relay of typing
The essential information of device: specifications and models, factory number, factory, verification number of times, seal pressure and sealing duration；Next selects report
Alert joint type: single warning, warning+static pressure, double knock；Then acting characteristic test point is selected according to relay types；Above
After step confirms, verification can be started；
(4) seal tightness test: after acting characteristic has been tested, according to choosing seal pressure and sealing duration, after confirmation, continues
Continue on relay checking instrument, carry out sealing property verification；Relay entirety should be able to bear the oil test of 100kPa normal pressure,
Last 60min ne-leakage phenomenon；
(5) electrical strength test: use proof voltage tester, under electroless state, by proof voltage tester and by school relay end
Son connects, and after confirming that line is correct, energising also applies 2kV voltage between terminal, continues 1min, must not have heating, puncture, dodges
Network phenomenon；
(6) data preserve and print: after verification is fully completed, verified data are preserved and printed.
2. according to the instantaneous relay calibration steps of the transformator described in claim 1, it is characterized in that: described by school relay
The time interval of resuming classes of device is 1 year, send school unit independently to determine, also dependent on actually used situation, time interval of resuming classes.
3. according to the instantaneous relay calibration steps of the transformator described in claim 1, it is characterized in that: described by school relay
The detection method of device is: when transformator is properly functioning, because quick oil pressure relay installation site is less than transformer oil upper thread, relay
Device grease chamber with oil tank of transformer even, isolates corrugated tube and is subject to less quiet oil pressure in grease chamber, relay air chamber inner spring is quiet to this
Oil pressure compensates and reaches balance, and now relay will not action；Transformator when inside transformer breaks down, in fuel tank
Oil rate of pressure change within the unit interval raises when reaching to adjust limit value, and the isolation corrugated tube in quick oil pressure relay is subject to
Compressive strain, the pressure in relay air chamber raises, and operation corrugated tube is subjected to displacement, the rapid action of microswitch, and makes control return
Road sends alarm signal in time and cuts off the electricity supply rapidly, makes transformator state out of service, thus realizes transporting transformer safety
The protection of row.
4. according to the instantaneous relay calibration steps of the transformator described in claim 1, it is characterized in that: described by school relay
Device for quick oil pressure relay.
5. according to the instantaneous relay calibration steps of the transformator described in claim 1, it is characterized in that: described relay school
Testing instrument is quick-acting oil pressure relay for trans former tester.
6. according to the instantaneous relay calibration steps of the transformator described in claim 1, it is characterized in that: described by school relay
Device, the detection of its performance is mainly to its acting characteristic and sealing property and the verification of contact action effectiveness: acting characteristic verifies
Time need to arrange nine kinds of rate of pressure rises；And measure action response time；Need during the verification of sealing property to set initial pressure
Power and sealing duration；I.e. use special calibration equipment, when analogue transformer breaks down, quick oil pressure relay action machine
Reason, uses microcomputer measuring and controlling technology, and by calculating and controlling pressure jump speed, automatic inflatable/air Real-time Collection is from sensor
Signal, verifies relay in authorized pressure mutational range.
7. according to the instantaneous relay calibration steps of the transformator described in claim 1, it is characterized in that: described by school relay
The main engine power of device is 500W, pressure detecting range: 0～400kPa, rate of pressure rise scope: 0～500kPa/s, accurate
Exactness grade 1.0 grades；The output voltage of described insulation resistance meter is 500VDC, and class of accuracy is not less than 10 grades；Described
The output voltage 0～3000VAC of proof voltage tester, degree of stability is not less than 1%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610502415.8A CN106199410A (en) | 2016-06-30 | 2016-06-30 | Transformator instantaneous relay calibration steps |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610502415.8A CN106199410A (en) | 2016-06-30 | 2016-06-30 | Transformator instantaneous relay calibration steps |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106199410A true CN106199410A (en) | 2016-12-07 |
Family
ID=57463713
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610502415.8A Pending CN106199410A (en) | 2016-06-30 | 2016-06-30 | Transformator instantaneous relay calibration steps |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106199410A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107450015A (en) * | 2017-06-13 | 2017-12-08 | 国网湖南省电力公司 | Intelligent micro-circuit breaker driving force test method and device |
| CN113296555A (en) * | 2021-05-26 | 2021-08-24 | 广东电网有限责任公司 | Method and device for operating oil pressure quick-acting relay for digital transformer |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2938132Y (en) * | 2006-06-25 | 2007-08-22 | 金仲华 | Dynamic performance test stage for quick oil pressure relay of transformer |
| CN201955220U (en) * | 2010-12-21 | 2011-08-31 | 浙江省电力试验研究院 | Comprehensive detection system for transformer non-electricity protecting device |
| CN103336242A (en) * | 2013-06-24 | 2013-10-02 | 国家电网公司 | Quick operating relay calibration method for transformer |
| CN104076311A (en) * | 2014-06-03 | 2014-10-01 | 广东电网公司电力科学研究院 | Verification system and method of quick-acting oil pressure relay verification platform for transformer |
-
2016
- 2016-06-30 CN CN201610502415.8A patent/CN106199410A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2938132Y (en) * | 2006-06-25 | 2007-08-22 | 金仲华 | Dynamic performance test stage for quick oil pressure relay of transformer |
| CN201955220U (en) * | 2010-12-21 | 2011-08-31 | 浙江省电力试验研究院 | Comprehensive detection system for transformer non-electricity protecting device |
| CN103336242A (en) * | 2013-06-24 | 2013-10-02 | 国家电网公司 | Quick operating relay calibration method for transformer |
| CN104076311A (en) * | 2014-06-03 | 2014-10-01 | 广东电网公司电力科学研究院 | Verification system and method of quick-acting oil pressure relay verification platform for transformer |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107450015A (en) * | 2017-06-13 | 2017-12-08 | 国网湖南省电力公司 | Intelligent micro-circuit breaker driving force test method and device |
| CN113296555A (en) * | 2021-05-26 | 2021-08-24 | 广东电网有限责任公司 | Method and device for operating oil pressure quick-acting relay for digital transformer |
| CN113296555B (en) * | 2021-05-26 | 2023-05-05 | 广东电网有限责任公司 | Method and device for operating oil pressure quick-acting relay for digital transformer |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5000040A (en) | Method and apparatus for remote monitoring of valves and valve operators | |
| CN102944811B (en) | Detection method of transformer winding deformation | |
| CN202974976U (en) | System for detecting accuracy of SF6 on-line monitoring device | |
| CN103411771A (en) | Large environment simulation test device for pipeline ball valve test | |
| CN103235277B (en) | The integrated debugging apparatus of Intelligent transformer station capacitive apparatus on-line monitoring system | |
| CN205719497U (en) | A kind of relief valve performance test and on-line testing instrument calibration equipment | |
| CN106199410A (en) | Transformator instantaneous relay calibration steps | |
| CN105021982A (en) | System for checking sulfur hexafluoride density relay | |
| CN115856724A (en) | Transformer winding fault identification method considering temperature factors | |
| CN109524136A (en) | A kind of experimental rig and method of high energy pipe fracture whipping behavior | |
| CN203300386U (en) | Intelligent oil level indicating device | |
| CN110726459A (en) | Hydrogenation machine on-site verification device and method | |
| CN101929882A (en) | Debugging method of dry-quenching automatic meter system | |
| CN104455697A (en) | Real-time monitoring method of electric actuator of large valve | |
| CN202938931U (en) | Field calibration apparatus for transformer temperature measuring device | |
| CN103336242A (en) | Quick operating relay calibration method for transformer | |
| CN108646124A (en) | A kind of oil chromatography online monitoring data variation tendency detection method based on small echo maximum | |
| CN112857790A (en) | Pressure relief valve high-low temperature opening performance calibration device and calibration method | |
| EP1711681A1 (en) | Annulus plugging detection using a pressure transmitter in gas-lift oil production | |
| CN108152733B (en) | Method for detecting opening and closing time in electrified mode for mechanical characteristics of high-voltage circuit breaker | |
| CN107655624B (en) | Pressure transmitter monitoring method | |
| CN216771922U (en) | Novel quick-acting oil pressure relay calibration stand | |
| CN213239324U (en) | A verifying attachment for detecting pressure sensor | |
| CN211603935U (en) | Transformer temperature controller on-site detection device | |
| GB2513726A (en) | A method and an apparatus for performing a leak test of a liquid gas fuel system of a motor vehicle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20161207 |
|
| WD01 | Invention patent application deemed withdrawn after publication |