CN105487005A - Multifunctional non-all-phase relay calibrator - Google Patents
Multifunctional non-all-phase relay calibrator Download PDFInfo
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- CN105487005A CN105487005A CN201510886050.9A CN201510886050A CN105487005A CN 105487005 A CN105487005 A CN 105487005A CN 201510886050 A CN201510886050 A CN 201510886050A CN 105487005 A CN105487005 A CN 105487005A
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Abstract
The invention provides a multifunctional non-all-phase relay calibrator, which comprises a coil, the head end of which is connected with a non-all-phase relay through a cable; a time delayer, which is used for setting delay time; and a displayer, which is provided with a start timer and a stop timer, wherein the start timer is connected with the tail end of the coil through a cable and is used for obtaining working start time of the non-all-phase relay, and the stop timer is connected with the time delayer through a cable and is used for obtaining the working stop time of the non-all-phase relay. The calibrator has the advantages of simple structure, easy operation, high measurement accuracy and accurate value display and the like; and through being popularized and applied in the work area, the calibrator realizes the effects of reducing labour intensity of personnel, reducing maintenance time and improving service quality.
Description
Technical field
The invention belongs to calibration equipment technical field, specifically, the present invention relates to a kind of multi-functional non-three phase relay checking instrument.
Background technology
According to State Grid Corporation of China's 18 countermeasures: isolating switch three phase position non-uniform protection should adopt breaker body three phase position non-uniform protection.220kV and above isolating switch adopt phase-splitting operation, and in manual operation or automatic reclosing process, unsuccessfully etc. three phase positions that cause of reason are inconsistent to there is three characteristics of the middle term non-Switching Synchronization, single-pole reclosing, by non-three phase relay, force isolating switch three-phase to trip.Under outdoor rugged environment, after the impact being subject to the factor such as quality, vibrations runs a period of time, error may be there is with former setting valve in the long-time running of non-three phase relay; Unbalanced three-phase lines time setting value diminishes, and causes three phases un identical protection action than upper level protection act in advance, causes equipment mistrip; Unbalanced three-phase lines time setting value is comparatively large, and unbalanced three-phase lines action postpones, system backup protection act, and isolating switch overstep tripping, causes fault coverage to expand; As long as isolating switch three phases un identical protection has isolating switch three, phase position is inconsistent, and starting relay outlet tripping operation, without any barring condition, so relay performance state is the key factor of breaker body three phases un identical protection correct operation; To adjust the harm that numerical value causes system for reducing isolating switch unbalanced three-phase lines, in conjunction with power failure chance, the unbalanced three-phase lines relay time should be verified.Before this we instrument is not independent verifies relay.
At present, mainly there is following problem in the verification of the non-three phase time relay:
1, in-site modeling open phase operation of CB process; protection backoff period wave filter indirect calculation non-three phase relay actuation time; comprise non-three phase relay actuation time and switch motion time sum, shortcoming measurement result accurately can not reflect pull up time.
2, non-whole phase protection action test process, relate to switch and protection two professional coordination, the difference of two professional work on the spot steps causes a side to need to wait as long for the opposing party, delays the activity duration, and an average verification relay needs 20 minutes.
3, relay spare part cannot verify separately, the non-three phase relay spare part of standing storage, lacks the instrument of directly verification, to require to be installed to after on isolating switch in verification, affects defect elimination quality.
Summary of the invention
The object of the present invention is to provide a kind of multi-functional non-three phase relay checking instrument, at least to solve the technical matters that directly cannot verify non-three phase relay that prior art exists, can solve simultaneously prior art exist cannot the technical matters of accurate response non-three phase relay actuation time.
In order to solve the problem, the invention provides a kind of multi-functional non-three phase relay checking instrument, its technical scheme is as follows:
A kind of multi-functional non-three phase relay checking instrument, comprise coil, the top of described coil is connected with described non-three phase relay by cable; Chronotron, for setting delay time; And display, be provided with on the display and start timer and stop timer, described beginning timer is connected by cable with the terminal of described coil, for obtaining the work start-up time of described non-three phase relay; Described stopping timer being connected by cable with described chronotron, for obtaining the work stand-by time of described non-three phase relay.
Multi-functional non-three phase relay checking instrument described above, more preferably: also comprise supply unit, described supply unit is connected with described display with described coil, described chronotron respectively, for providing electricity consumption for described coil, described chronotron and described display.
Multi-functional non-three phase relay checking instrument described above, more preferably: described coil, described chronotron and described display share one and connect wires, and described connecting wires is provided with power switch, described in connect wires and to be connected with described supply unit.
Multi-functional non-three phase relay checking instrument described above, more preferably: described supply unit is accumulator.
Multi-functional non-three phase relay checking instrument described above, more preferably: the capacity performance index of described accumulator is 12V-12Ah accumulator.
Multi-functional non-three phase relay checking instrument described above, more preferably: also comprise control box, described coil, described chronotron and described display are installed in described control box.
Multi-functional non-three phase relay checking instrument described above, more preferably: also comprise power supply box, described supply unit is arranged in described power supply box.
Analyze known, compared with prior art, advantage of the present invention and beneficial effect are:
One, this non-three phase of employing relay checking instrument provided by the invention can non-whole phase protection actuation time of Measurement accuracy switch, and the hidden danger that Timeliness coverage equipment exists, improves equipment reliability of operation; Meanwhile, by the test to non-three phase relay spare part, spare part integrity can be verified in advance, avoid spare part to need to be installed to simulation on switch and test.Needed three people to complete during verification non-three phase relay in addition, switch specialty two people do experiment, and protect a professional people to coordinate and see back-end data.Need switch specialty two people during present field-checking, during standby redundancy verification, one people can complete; Again, tester of the present invention can shorten checking time, in the past the verification non-three phase relay time, needs Liang Ge teams and groups to coordinate, completes greatly about 20 minutes; Present split run group job both can complete for 5 minutes.Tester of the present invention has structure simply in a word, and the features such as simple to operate, measuring accuracy is high, and numerical value display is accurate, by applying in work area, reach minimizing personnel labor intensity, shortens the repair time, the effect of improving service quality.
Two, the described supply unit that arranges of the present invention, can enable the present invention use not having the place of power supply.
Three, the described unit of testing and controlling of the present invention's setting, can show non-three phase pull up time more intuitively.
Four, the present invention arrange described control box and described power supply box, of the present invention carrying can be facilitated, and described coil, described chronotron and described display are placed in described control box, described supply unit are placed in described power supply box, can prevent from having an impact each other.
Accompanying drawing explanation
Fig. 1 is the structural representation of the multi-functional non-three phase relay checking instrument of the preferred embodiment of the present invention.
Fig. 2 is the structured flowchart of the multi-functional non-three phase relay checking instrument of the preferred embodiment of the present invention.
Fig. 3 is the control principle block diagram of coil, chronotron and display in the control box of the preferred embodiment of the present invention.
Fig. 4 is the control principle block diagram of the power supply box of the preferred embodiment of the invention.
Fig. 5 is the panel figure of the control box of the preferred embodiment of the invention.
Fig. 6 is the panel figure of the power supply box of the preferred embodiment of the invention.
In figure, 1-power switch; 2-coil; 21-coil switch; 3-chronotron; 31-delay switch; 4-display; 41-starts timer; 42-stops timer.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in further details.
As shown in Figure 1, the multi-functional non-three phase relay checking instrument of the preferred embodiment of the present invention mainly comprises coil 2, and the top of coil 2 is connected with non-three phase relay by cable; Chronotron 3, for setting delay time; With display 4, display 4 is provided with and starts timer 41 and stop timer 42, start timer 41 and be connected by cable with the terminal of coil 2, for obtaining the work start-up time of non-three phase relay; Timer 42 is stopped to be connected by cable with chronotron 3, for obtaining the work stand-by time of non-three phase relay.
Generally speaking, multi-functional non-three phase relay checking instrument provided by the invention, directly can obtain the accurate work time of non-three phase relay, the present invention only just need can verify separately the working time of non-three phase relay by tester, can the underproof part of rejected in advance non-three phase relay acknowledgment copy, guarantee the mass defect eliminating non-three phase relay acknowledgment copy.The present invention can reduce non-three phase relay unbalanced three-phase lines and to adjust the harm that numerical value causes work system, in conjunction with power failure chance, and the instrument that the unbalanced three-phase lines relay time is verified.
In order to tester of the present invention be made normally to work not having the place of power supply, the present invention also comprises supply unit (not shown), supply unit is connected with display 4 with coil 2, chronotron 3 respectively, for providing electricity consumption for coil 2, chronotron 3 and display 4.Single supply access is realized in order to the present invention can be enable, coil 2 of the present invention, chronotron 3 and display 4 shares one and connects wires, power switch 1 is provided with on connecting wires, connect wires and to be connected with supply unit, when power switch 1 is opened, then coil 2, chronotron 3 and display 4 are energized, when power switch 1 is closed, then and coil 2, chronotron 3 and display 4 power-off.
In order to guarantee that supply unit can provide power supply, supply unit of the present invention is inverter, is preferably accumulator inverter.The capacity performance index of accumulator inverter of the present invention is 12V-12Ah accumulator.Adopt 12V-12Ah accumulator; round-the-clock power demands can be met; and whole defencive function such as 12V-12Ah accumulator carries " overcurrent protection, short-circuit protection, electric current is counter fill protection, reverse connecting protection and under-voltage protection ", really realizes multiple intelligent security protection.
The timing range of the timing unit of display of the present invention is set to 0-99.99 second, 0-999.9 second, 0-99 divide 59 seconds and 0-99 time 59 points of four kinds of scopes, different actual measurement demands can be met like this.
In order to can will more intuitively non-three phase pull up time be shown, the present invention also comprises unit of testing and controlling (not shown), unit of testing and controlling respectively with beginning timer 41 with stop timer 42 and be connected by cable, unit of testing and controlling will start timer 41 and stop the job initiation time of timer 42 and work stand-by time to calculate, directly acquisition non-three phase relay actuation time.In addition in order to directly show the working time numerical value of non-three phase relay, the present invention is provided with display unit on display 4, and display unit is connected by cable with unit of testing and controlling, for showing the working time of non-three phase relay intuitively.
As shown in Figure 3 and Figure 5, the present invention also comprises control box (not shown), and coil 2, chronotron 3 and display 4 are installed in control box.
As shown in Figure 4 and Figure 6, the present invention also comprises power supply box (not shown), and supply unit is arranged in power supply box.
As shown in Figure 1, Figure 2, shown in Fig. 3, Fig. 4, Fig. 5 and Fig. 6, the course of work of the present invention is described in detail:
By to the motion analysis of isolating switch non-whole phase protection, isolating switch three phase position is inconsistent, and non-three phase relay starts excitation, through the n second pre-set, go here and there at the non-three phase relay tip of sub-gate circuit closed, circuit breaker trip: as shown in Figure 1, switch on power device, press power switch 1, correction instrument of the present invention is energized, opening coil switch 21, coil 2 starts, the node conducting of coil 2, start timer 41 noble potential, timing starts; Cross time n second (schedule time), open time delay switch 31, chronotron (i.e. time delay node) action, stop timer 42 electronegative potential, timing stops; Display 4 shows coil 2 actuation coil switch 21 and is closed into the chronotron action delay switch 31 closed time, i.e. the delay time of non-three phase relay.
As depicted in figs. 1 and 2, concrete test process is, first tester and supply unit is well placed, by the tester earthing of casing, then the measuring junction p-wire of tester is connected, with p-wire, non-three phase relay tip is connected with tester, last joint test power lead, then test is started, as shown in Fig. 3 ~ Fig. 6, the cell switch S1 of opening power device successively, (the 12V direct current that supply unit exports is after the inversion module inversion of centre for inverse switch S2, outside output 220V alternating current), power switch 1, the displaying time of display 4 is 0, voltage is 0, the output voltage of adjustment supply unit is to ratings, the voltage of display 4 is shown as ratings, be such as 220V, actuating coil switch 21, non-three phase relay starts excitation, the beginning timer 41 of display 4 (i.e. the time relay) starts timing, through n second (presetting the time), chronotron 3 action, timing stops, the time now shown is exactly non-three phase relay actuation time.
As shown in Figure 3, Figure 4, the 12V direct current that supply unit exports is after the inversion module inversion of centre, and outwards export 220V alternating current, 220V alternating current is input to after control circuit through J1, after T1 pressure regulation, export DC voltage through rectification, magnitude of voltage shows at digital display screen; S5 is direct current output switch, and S4 is direct current drive output switch, both wherein arbitrary closed after, coil switch 21 conjugates, and control circuit exports DC voltage to busy relay, and D2 lights.Start count signal from P6, P7 input, timing screen starts timing, and stop count signal when test non-three phase relay time delay node closes the input of backward P4, P5 node, now timing stops.
Tester provided by the invention does not need realistic simulation non-three phase course of action, gets rid of the switch motion time to the impact of non-three phase relay time.When master enters switch relay setting valve 0.5s, when being 0.45 with the non-three phase relay tester test duration, data just belong to true scope.
Analyze known, compared with prior art, advantage of the present invention and beneficial effect are:
One, this non-three phase of employing relay checking instrument provided by the invention can non-whole phase protection actuation time of Measurement accuracy switch, and the hidden danger that Timeliness coverage equipment exists, improves equipment reliability of operation; Meanwhile, by the test to non-three phase relay spare part, spare part integrity can be verified in advance, avoid spare part to need to be installed to simulation on switch and test.Needed three people to complete during verification non-three phase relay in addition, switch specialty two people do experiment, and protect a professional people to coordinate and see back-end data.Need switch specialty two people during present field-checking, during standby redundancy verification, one people can complete; Again, tester of the present invention can shorten checking time, in the past the verification non-three phase relay time, needs Liang Ge teams and groups to coordinate, completes greatly about 20 minutes; Present split run group job both can complete for 5 minutes.Tester of the present invention has structure simply in a word, and the features such as simple to operate, measuring accuracy is high, and numerical value display is accurate, by applying in work area, reach minimizing personnel labor intensity, shortens the repair time, the effect of improving service quality.
Two, the supply unit that arranges of the present invention, can enable the present invention use not having the place of power supply.
Three, the unit of testing and controlling of the present invention's setting, can show non-three phase pull up time more intuitively.
Four, the present invention arrange control box and power supply box, of the present invention carrying can be facilitated, and coil 2, chronotron 3 and display 4 are placed in control box, supply unit is placed in power supply box, can prevent from having an impact each other.
As known by the technical knowledge, the present invention can be realized by other the embodiment not departing from its Spirit Essence or essential feature.Therefore, above-mentioned disclosed embodiment, with regard to each side, all just illustrates, is not only.Within the scope of the present invention all or be all included in the invention being equal to the change in scope of the present invention.
Claims (7)
1. a multi-functional non-three phase relay checking instrument, is characterized in that, comprising:
Coil, the top of described coil is connected with described non-three phase relay by cable;
Chronotron, for setting delay time; With
Display, be provided with on the display and start timer and stop timer, described beginning timer is connected by cable with the terminal of described coil, for obtaining the work start-up time of described non-three phase relay; Described stopping timer being connected by cable with described chronotron, for obtaining the work stand-by time of described non-three phase relay.
2. multi-functional non-three phase relay checking instrument according to claim 1, is characterized in that, also comprise:
Supply unit, described supply unit is connected with described display with described coil, described chronotron respectively, for providing electricity consumption for described coil, described chronotron and described display.
3. multi-functional non-three phase relay checking instrument according to claim 2, is characterized in that:
Described coil, described chronotron and described display share one and connect wires, and described connecting wires is provided with power switch, described in connect wires and to be connected with described supply unit.
4. the multi-functional non-three phase relay checking instrument according to Claims 2 or 3, is characterized in that:
Described supply unit is accumulator.
5. multi-functional non-three phase relay checking instrument according to claim 4, is characterized in that:
The capacity performance index of described accumulator is 12V-12Ah accumulator.
6. multi-functional non-three phase relay checking instrument according to claim 1 and 2, is characterized in that, also comprise:
Control box, described coil, described chronotron and described display are installed in described control box.
7. the multi-functional non-three phase relay checking instrument according to Claims 2 or 3, is characterized in that, also comprise:
Power supply box, described supply unit is arranged in described power supply box.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510886050.9A CN105487005B (en) | 2015-12-04 | 2015-12-04 | A kind of multi-functional non-three phase relay checking instrument |
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| CN201510886050.9A CN105487005B (en) | 2015-12-04 | 2015-12-04 | A kind of multi-functional non-three phase relay checking instrument |
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| CN105487005A true CN105487005A (en) | 2016-04-13 |
| CN105487005B CN105487005B (en) | 2019-04-16 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106054071A (en) * | 2016-08-11 | 2016-10-26 | 国家电网公司 | Relay calibration instrument |
| CN110687386A (en) * | 2019-11-05 | 2020-01-14 | 国网山西省电力公司阳泉供电公司 | Three-phase inconsistent protection test box for circuit breaker body |
| CN111044899A (en) * | 2020-01-08 | 2020-04-21 | 国网冀北电力有限公司廊坊供电公司 | Calibrator and calibration method |
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| CN205176221U (en) * | 2015-12-04 | 2016-04-20 | 国家电网公司 | Full phase relay check gauge of multi -functional non - |
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| JP3692179B2 (en) * | 1996-05-13 | 2005-09-07 | 株式会社エヌエフ回路設計ブロック | Protection relay test equipment |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106054071A (en) * | 2016-08-11 | 2016-10-26 | 国家电网公司 | Relay calibration instrument |
| CN110687386A (en) * | 2019-11-05 | 2020-01-14 | 国网山西省电力公司阳泉供电公司 | Three-phase inconsistent protection test box for circuit breaker body |
| CN111044899A (en) * | 2020-01-08 | 2020-04-21 | 国网冀北电力有限公司廊坊供电公司 | Calibrator and calibration method |
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| CN105487005B (en) | 2019-04-16 |
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