CN104749541A - Verification method for motion time of relay protection tester - Google Patents
Verification method for motion time of relay protection tester Download PDFInfo
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- CN104749541A CN104749541A CN201310737055.6A CN201310737055A CN104749541A CN 104749541 A CN104749541 A CN 104749541A CN 201310737055 A CN201310737055 A CN 201310737055A CN 104749541 A CN104749541 A CN 104749541A
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- relay
- time
- relay protection
- experimental instrument
- protection experimental
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- Testing Electric Properties And Detecting Electric Faults (AREA)
Abstract
Provided is a verification method for motion time of a relay protection tester. Tasks of a power supply system tend to be heavier and heavier, hidden safety hazard exists in a relay protector at any time, a relay protection tester plays a significant role, and especially, a test mode in which the tester and the relay protector form a closed loop system tends to be the trend. A traditional relay protection test technology is relatively underdeveloped and is incapable of accurately measuring the motion time, and use of the technology is stopped gradually. The method comprises the steps that (1) the replay protection tester acts an excitation signal on a relay or a relay protector to be measured; (2) when the relay or relay protector is in motion, input of the relay protection tester can detect level change; and (3) the time interval from the time when the excitation signal is acted to the time when the input level overturns or the node switch state changes is the motion time of the tester. The method is used to calibrate the motion time of the relay protection tester.
Description
technical field:
the present invention relates to the method for calibration of a kind of actuation time of relay protection experimental instrument.
background technology:
along with power supply system task is more and more heavier, there is this potential safety hazard in the relay equipment moment; the effect of relay protection experimental instrument is very outstanding; the future developments such as the self-protection function that it is strong towards process data capability, stability is high, man-machine interaction is friendly, volume is little, perfect, the test mode of the closed-loop system be especially made up of experiment instrument and relay equipment will become inexorable trend.Relay protection test technology backwardness relatively in the past, progressively stops application.Measurement for actuation time is accurate not.
summary of the invention:
the object of this invention is to provide the method for calibration of a kind of actuation time of relay protection experimental instrument.
above-mentioned object is realized by following technical scheme:
the method of calibration of the actuation time of relay protection experimental instrument, the method comprises the steps:
(1) by relay protection experimental instrument, pumping signal is applied to relay or tested relay equipment;
(2) when relay or relay equipment action, the intake of relay protection experimental instrument will detect the change of level;
(3) from the moment that excitation applies to intake level, the time interval in upset or Node Switch state change moment is exactly its actuation time.
the method of calibration of the actuation time of described relay protection experimental instrument, described actuation time, the detection method of degree of accuracy was that relay protection experimental instrument produces a jump signal, this signal is as starting signal, make the delay pulse of the synthesis passage outputting standard time of time synthesizer, utilize the rising edge of delay pulse by electronic switch conducting, simulate the closure state of relay or tested protective relaying device, simultaneously relay protection experimental instrument hold the conversion that level can be detected into end, start applying excitation to reading time interval measurement that intake state changes out simultaneously
the method of calibration of the actuation time of described relay protection experimental instrument, carries out level conversion between described pumping signal and described time synthesizer, adopts MAX232 chip to realize in described level conversion.
beneficial effect:
the method of calibration of actuation time of the present invention is measured accurately, and function is man-machine factor more and more, requires more and more higher to protective relaying device method of testing.The protective relaying device method of testing of standard criterion not only promotes work efficiency, can also reduce the requirement to staff's knowwhy.Succinctly easy to operate.
accompanying drawing illustrates:
accompanying drawing 1 is the theory diagram of the inventive method.
embodiment:
embodiment 1:
the method of calibration of the actuation time of relay protection experimental instrument, the method comprises the steps:
(1) by relay protection experimental instrument, pumping signal is applied to relay or tested relay equipment;
(2) when relay or relay equipment action, the intake of relay protection experimental instrument will detect the change of level;
(3) from the moment that excitation applies to intake level, the time interval in upset or Node Switch state change moment is exactly its actuation time.
embodiment 2:
the method of calibration of the actuation time of the relay protection experimental instrument according to embodiment 1, described actuation time, the detection method of degree of accuracy was that relay protection experimental instrument produces a jump signal, this signal is as starting signal, make the delay pulse of the synthesis passage outputting standard time of time synthesizer, utilize the rising edge of delay pulse by electronic switch conducting, simulate the closure state of relay or tested protective relaying device, simultaneously relay protection experimental instrument hold the conversion that level can be detected into end, start applying excitation to reading time interval measurement that intake state changes out simultaneously
embodiment 3:
the method of calibration of the actuation time of the relay protection experimental instrument according to embodiment 1 or 2, carries out level conversion between described pumping signal and described time synthesizer, adopts MAX232 chip to realize in described level conversion.
Claims (3)
1. the method for calibration of the actuation time of relay protection experimental instrument, is characterized in that: the method comprises the steps:
(1) by relay protection experimental instrument, pumping signal is applied to relay or tested relay equipment;
(2) when relay or relay equipment action, the intake of relay protection experimental instrument will detect the change of level;
(3) from the moment that excitation applies to intake level, the time interval in upset or Node Switch state change moment is exactly its actuation time.
2. the method for calibration of the actuation time of relay protection experimental instrument according to claim 1, it is characterized in that: described actuation time, the detection method of degree of accuracy was that relay protection experimental instrument produces a jump signal, this signal is as starting signal, make the delay pulse of the synthesis passage outputting standard time of time synthesizer, utilize the rising edge of delay pulse by electronic switch conducting, simulate the closure state of relay or tested protective relaying device, simultaneously relay protection experimental instrument hold the conversion that level can be detected into end, start applying excitation to reading time interval measurement that intake state changes out simultaneously.
3. the method for calibration of the actuation time of relay protection experimental instrument according to claim 1 and 2, is characterized in that: carry out level conversion between described pumping signal and described time synthesizer, adopts MAX232 chip to realize in described level conversion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310737055.6A CN104749541A (en) | 2013-12-27 | 2013-12-27 | Verification method for motion time of relay protection tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310737055.6A CN104749541A (en) | 2013-12-27 | 2013-12-27 | Verification method for motion time of relay protection tester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104749541A true CN104749541A (en) | 2015-07-01 |
Family
ID=53589517
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310737055.6A Withdrawn CN104749541A (en) | 2013-12-27 | 2013-12-27 | Verification method for motion time of relay protection tester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104749541A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107167729A (en) * | 2017-05-26 | 2017-09-15 | 中国电子科技集团公司第四十研究所 | The relay operation time automatic testing equipment and method controlled using trigger pulse |
| CN110940874A (en) * | 2019-11-18 | 2020-03-31 | 岭澳核电有限公司 | Calibration method, server and medium for nuclear power station transformer protection device |
-
2013
- 2013-12-27 CN CN201310737055.6A patent/CN104749541A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107167729A (en) * | 2017-05-26 | 2017-09-15 | 中国电子科技集团公司第四十研究所 | The relay operation time automatic testing equipment and method controlled using trigger pulse |
| CN107167729B (en) * | 2017-05-26 | 2019-06-18 | 中国电子科技集团公司第四十一研究所 | Utilize the relay operation time automatic testing equipment and method of trigger pulse control |
| CN110940874A (en) * | 2019-11-18 | 2020-03-31 | 岭澳核电有限公司 | Calibration method, server and medium for nuclear power station transformer protection device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C04 | Withdrawal of patent application after publication (patent law 2001) | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20150701 |