CN205176220U - Portable overload protection device tripping operation export tester - Google Patents
Portable overload protection device tripping operation export tester Download PDFInfo
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- CN205176220U CN205176220U CN201520912913.0U CN201520912913U CN205176220U CN 205176220 U CN205176220 U CN 205176220U CN 201520912913 U CN201520912913 U CN 201520912913U CN 205176220 U CN205176220 U CN 205176220U
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Abstract
The utility model provides a portable overload protection device tripping operation export tester, includes the circuit edition of books body to and tripping operation impulse detection input interface, pulse timing input interface, power input connector and the control assembly of setting on the circuit edition of books body, control assembly includes detection module, test control module, testing instruction module, timing startup module and LCD liquid crystal display module, the test control module be connected with detection module, testing instruction module, startup module and LCD liquid crystal display module respectively, the pulse timing input interface is connected with test control module after being connected with timing startup module again, tripping operation impulse detection input interface is connected with detection module. The utility model discloses detectable overload protection device's tripping operation pulse voltage and trip pulse voltage's time display with overload protection device from starting to sending and come out can differentiate the exactness in protection device tripping operation logical sum export return circuit directly perceivedly.
Description
Technical field
The utility model relates to relay protection of power system testing techniques of equipment, particularly relates to a kind of portable protective relaying device tripping operation exit tester.
Background technology
To be correlated with operating standard according to electric system, to need regularly test to protective relaying device, can put into operation after acceptance(check) is also needed to the protective device that newly puts into operation.When protective relaying device being tested at every turn, needing to test reaching dozens of Trip Logic, if main transformer protection device, then may reach up to a hundred Trip Logic.Usually, adopt test instrument to add electric fault amount simulation electric power device fails, the method for the tripping operation output clamping of protective relaying device being carried out to voltage measurement is with the correctness of check protection device Trip Logic and outlet loop.Due to the momentary voltage pulse that tripping operation pulse is about 100 milliseconds; therefore when carrying out the verification of Trip Logic and outlet loop; operating personnel are needed to measure one by one the tripping operation output clamping be associated; this frequently, repeatedly with a large amount of operations; the test duration of at substantial when operating personnel are tested protective relaying device; reduce testing efficiency; when there being power equipment to need interruption maintenance; easily affect overhaul efficiency and progress; can operation quality be affected time serious, even incur loss through delay electric power feeding time.In the face of the larger verification of this workload, present stage just continues to use to classify in traditional point side, segmentation divides time limit, the one by one logic out-of-date methods checked successively of pressing plate one by one.As shown in Figure 1, be the test philosophy of existing tripping operation pulse voltage.Relay protection is in FIG a docking point of microcomputer protecting device; trip(ping) circuit S is output clamping; when protective relaying device puts into operation; trip(ping) circuit S (output clamping) is input state; logic verify is being carried out to relay protection K; now first should exit trip(ping) circuit S (output clamping), now trip(ping) circuit S (output clamping) is off state.Fault amount is added to protective device by adopting test instrument; closing device internal node K after relay protection identification fault; now tested measuring point and trip(ping) circuit S (output clamping) output port 1 end are by positively charged position, now can judge that the outlet loop of protective device is correct.Before node K is closed, the current potential of the output port 1 of trip(ping) circuit S (output clamping) is 0; (generally closed after about 10ms ~ 5s when node K closed moment; determined by the Trip Logic of protective device; can artificial set action definite value; closing period about the 100ms of K point; therefore claim this operation voltage for tripping operation pulse voltage); check point S1 point current potential becomes positive 57.7V (for 220V DC control supply then for about 115V), therefore, for node K pulse voltage detection and time interocclusal record problem not yet have relative recording.One section of Chinese patent: application number: 201420770637.4; patent name is: " protective relaying device tripping operation outlet proving installation "; solve can extend pilot lamp light the time; thus tester can be facilitated to judge, and tripping operation exports whether correct operation; thus avoid repeated test; thus saved the test duration, improve testing efficiency, but cannot record protection device tripping operation time send tripping operation pulse voltage time.
Utility model content
The technical problems to be solved in the utility model is the deficiency existed for prior art; provide a kind of can the portable protective relaying device tripping operation exit tester in accurate record protection device tripping voltage burst length; to achieve these goals, the technical solution adopted in the utility model is as follows:
A kind of portable protective relaying device tripping operation exit tester, it is characterized in that: comprise circuit board body, and the tripping operation pulse detection input interface be arranged in circuit board body, pulse timing input interface, power input interface and Control Component, described Control Component comprises detection module, testing control module, detect indicating module, timing starts module and LCD LCD MODULE, described testing control module respectively with detection module, detect indicating module, start module to be connected with LCD LCD MODULE, described pulse timing input interface and timing start after model calling and are connected with testing control module, described tripping operation pulse detection input interface is connected with detection module.In the utility model, pulse input interface when pulse timing input interface generally can arrange 1 ~ 4, this interface access sprocket pulse input interface, for starting timing.
Preferably, described detection indicating module is at least eight instruction passages, and described detection module is at least two sense channels, and described startup module is at least one and starts passage.
Preferably, described detection module comprises resistance R1, resistance R2, resistance R3, triode Q1 and breakback protector D1, the anode of described breakback protector D1 is connected with tripping operation pulse detection input interface, the negative electrode of described breakback protector D1 is connected with one end of resistance R1, the other end of described resistance R1 respectively with one end of resistance R2, one end of resistance R3 connects, the other end of described resistance R3 is connected with the base stage of triode Q1, the collector of described triode Q1 respectively with one end of resistance R4, the I/O0 expanding channels of testing control module, the other end of described resistance R4 is connected with power input interface, the other end of resistance R2 and the emitter of triode Q1 are all connected to ground.
Preferably, described detection indicating module comprises resistance R5, resistance R6, triode Q2 and light emitting diode D2, one end of described resistance R5 and the I/O2 expanding channels of testing control module (3), the other end of described resistance R5 is connected with triode Q2 base stage, described triode Q2 collector is connected with the negative electrode of light emitting diode D2, the anode of described light emitting diode D2 is connected with one end of resistance R6, the other end of described resistance R6 is connected with power input interface, and the emitter of described triode Q2 is connected to ground.In the utility model, tripping operation pulse detection input interface generally can arrange 1 ~ 12 passage, for inputting tripping operation pulse.
Preferably, the voltage breakdown of described breakback protector D1 is 1000V.
Preferably, described LCD LCD MODULE comprises a LCD LCD MODULE and the 2nd LCD liquid crystal display mode, described first LCD liquid crystal display screen (61) is all connected with testing control module by the adapter in circuit board body with the second LCD liquid crystal display screen (62), and is fixedly installed on circuit board body surface.
Preferably, the first LCD liquid crystal display screen and the second LCD liquid crystal display screen are 12864LCD LCDs, and described testing control module is STC series monolithic.
In sum, the utility model is owing to have employed such scheme, and the utility model has following beneficial effect:
(1), the utility model shows by detection pulse voltage and by its time, can differentiate the correctness of protective device Trip Logic and outlet loop intuitively.
(2), the utility model can judge protective device Trip Logic and outlet loop whether correct operation have recorded time of tripping operation pulse voltage more easily; avoid repetition, test repeatedly; thus saved the test duration; make the overall inspection degree of progress speed of power system relay protection device, improve checkability.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model example or technical scheme of the prior art, introduce doing accompanying drawing required in embodiment or description of the prior art simply below, obviously, accompanying drawing in the following describes is only examples more of the present utility model, to those skilled in the art, do not paying under creationary prerequisite, other accompanying drawing can also obtained according to these accompanying drawings.
Fig. 1 is existing protective relaying device principle sketch.
Fig. 2 is the circuit board body layout of a kind of portable protective relaying device tripping operation exit tester of the utility model.
Fig. 3 is the principle assumption diagram of a kind of portable protective relaying device tripping operation exit tester of the utility model
Fig. 4 is the circuit theory diagrams of a kind of portable protective relaying device tripping operation exit tester of the utility model.
In accompanying drawing, 100-road plate body, 1-tripping operation pulse detection input interface, 7-pulse timing input interface, 10-power input interface, 200-Control Component, 2-detection module, 3-testing control module (3), 4-detects indicating module, and 5-starts module, 6-LCD LCD MODULE, 61-first LCD liquid crystal display screen, 62-second LCD liquid crystal display screen.
Embodiment
Below in conjunction with the accompanying drawing in the utility model example, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
As shown in Figures 2 and 3, a kind of portable protective relaying device tripping operation exit tester, comprise circuit board body 100, and the tripping operation pulse detection input interface 1 be arranged in circuit board body 100, pulse timing input interface 7, power input interface 10 and Control Component 200, described Control Component 200 comprises detection module 2, testing control module 3, detect indicating module 4, timing starts module 5 and LCD LCD MODULE 6, described testing control module 3 respectively with detection module 2, detect indicating module 4, start module 5 to be connected with LCD LCD MODULE 6, described pulse timing input interface 7 and timing start after module 5 is connected and are connected with testing control module 3, described tripping operation pulse detection input interface 1 is connected with detection module 2.Described LCD LCD MODULE 6 comprises the first LCD liquid crystal display screen 61 and the second LCD liquid crystal display screen 62, described first LCD liquid crystal display screen 61 is all connected with testing control module 3 by the adapter in circuit board body 1 with the second LCD liquid crystal display screen 62, and is fixedly installed on circuit board body 1 surface.Described first LCD liquid crystal display screen 61 and the second LCD liquid crystal display screen 62 are 12864LCD LCDs, and described testing control module is the STC12C5616AD chip of STC series monolithic.Described in the utility model, power module 11 is connected with power input interface 10 by power lead, adopts 5V DC power supply.
As most preferred embodiment of the present utility model, as shown in Figure 4, described detection module 2 comprises resistance R1, resistance R2, resistance R3, triode Q1 and breakback protector D1, the anode of described breakback protector D1 is connected with tripping operation pulse detection input interface 1, the negative electrode of described breakback protector D1 is connected with one end of resistance R1, the other end of described resistance R1 respectively with one end of resistance R2, one end of resistance R3 connects, the other end of described resistance R3 is connected with the base stage of triode Q1, the collector of described triode Q1 respectively with one end of resistance R4, the I/O0 expanding channels of testing control module 3, the other end of described resistance R4 is connected with power input interface 10, the other end of resistance R2 and the emitter of triode Q1 are all connected to ground.In the utility model, described detection module 2 is provided with eight sense channels, each passage separate and respectively with eight expanding channels of tripping operation pulse detection input interface 1, each passage connects respectively by eight input/output interfaces (I/O00 passage is to I/O07 passage) of testing control module 3, by the size of change resistance R1, resistance R2 and resistance R3, the threshold voltage of detection can be set, the threshold voltage of 30V is set in the utility model, enables the detection adapting to 110V and 220V two kinds of DC control supplies.When detecting voltage high level and being effective, tripping operation pulse detection input interface 1 is pulse detection input port (S0-0 is interfaced to S0-7 interface), namely from " 1 " position Fig. 2, the pulse detection signals inputted from eight tripping operation pulse detection input interfaces 1 is respectively respectively by the triode Q1 conducting of respective passage, level when being now connected between the collector of triode Q1 and the I/O00 pin of single-chip microcomputer becomes low level, and now to judge to detect voltage effective for single-chip microcomputer.Wherein, the voltage breakdown of breakback protector D1 is 1000V, can effectively isolate forceful electric power and weak electrical loop, to prevent external disturbance.Be more than 800k Ω additionally by the value arranging resistance R1, ensure that the input resistance of tester is enough large under extreme condition, can not cause DC earthing.The timing of tester starts input port and forms without source contact by a pair, and the manual short circuit of available Foreign shorting stub starts, and also can being outputed contact to start by reaying protection test instrument, can realize the accurate timing to the burst length of tripping when adopting the latter's wiring.
As most preferred embodiment of the present utility model, as shown in Figure 4, described detection indicating module 4 is at least eight instructions passage (i.e. " 8 " position in Fig. 2), for inputting tripping operation pulse timing passage, described detection indicating module 4 comprises resistance R5, resistance R6, triode Q2 and light emitting diode D2, the I/O2 expanding channels of one end of described resistance R5 and testing control module 3 (namely being exported by eight passage I/O20 to I/O27 of single-chip microcomputer with the display of the pulse voltage that controls to trip), the other end of described resistance R5 is connected with triode Q2 base stage, described triode Q2 collector is connected with the negative electrode of light emitting diode D2, the anode of described light emitting diode D2 is connected with one end of resistance R6, the other end of described resistance R6 is connected with power input interface (10), the emitter of described triode Q2 is connected to ground.As shown in Figure 3, when single-chip microcomputer judges that detection voltage is effective, the I/O2 channel interface of corresponding single-chip microcomputer exports high level, and now corresponding triode Q2 conducting, the light emitting diode D2 of sense channel is shinny.Therefore; when having pulse detection signals to input in tripping operation pulse detection input interface 1 first input port S0-0; when pulse voltage is greater than the threshold voltage of breakback protector D1; the conducting of triode Q1 ability; by arranging the resistance of R1, resistance R2 and resistance R3, threshold voltage of the present utility model is 30V.In addition, after triode Q1 conducting, the voltage that collector divides is about 0.7V, and R2 divides voltage equals R3 and collector voltage sum, level when being now connected between the collector of triode Q1 and the I/O00 pin of single-chip microcomputer becomes low level, after the pulse detection signals that the I/O00 of single-chip microcomputer detects, the I/O20 pin of single-chip microcomputer exports high level signal, drive triode Q2 conducting, make to be connected to light emitting diode D2 on the I/O20 pin of single-chip microcomputer shinny and send detection indicator signal, other each to detect the principle of work of input port identical, after pulse detection signals being detected, light emitting diode D2 with it in respective channel is shinny, indicate the input of tripping operation pulse detection signals.
As most preferred embodiment of the present utility model, as shown in Figure 4, the time of tripping operation pulse voltage is shown by LCD LCD MODULE 6, for tripping operation Puled input passage, start module by sprocket pulse and start all timers, when the Puled input sense channel that trips detects tripping operation pulse voltage, then its arrival time of control module record be presented in the respective channel of LCD LCD MODULE, no matter whether each passage detects tripping operation pulse voltage, after 10s, program stopped detects, and can carry out test next time after hand resetting program.Composition graphs 2 and Fig. 3, the first LCD liquid crystal display screen 61 in described LCD LCD MODULE 6 and the second LCD liquid crystal display screen 62 are respectively used to display channel title, wherein the first LCD liquid crystal display screen 61 shows the pulse information of pulse detection input port S0-0 to S0-3, second LCD liquid crystal display screen 62 shows the pulse information of pulse detection input port S0-4 to S0-7, and record respective pulses detects the parameters such as the burst length record value (unit: ms) of input port.
As most preferred embodiment of the present utility model; as shown in Figure 4; described timing starts mould 2 pieces and adopts two or one to start passage; and adopt low level to start; its Starting mode has two features: one be can adopt outside reaying protection test instrument output node to start, two is to start by manual short circuit.Described startup module 2 adopts tact switch circuit to comprise startup display circuit, tact switch circuit SW0 and tact switch circuit SW1, the I/O34 expanding channels of described tact switch circuit SW0 and testing control module 3, the I/O35 expanding channels of described tact switch circuit SW1 and testing control module 3.When manually booting, by the timing circuit using tact switch circuit SW0 or SW1 (shown in the position " 5 " in Fig. 2) to start testing control module 3 inside.When adopting the pulse timing signal outputed of outside reaying protection test instrument by the J-i1 port of starting impulse timing input interface 7 or J-i2 port (shown in the position " 7 " in Fig. 1) input; wherein; J-i1 port also with the I/O34 expanding channels of testing control module 3; described J-i2 port also with the I/O35 expanding channels of testing control module 3; when Low level effective starts, start L1 or L2 corresponding in display circuit shinny (shown in the position " 9 " in Fig. 2).
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; allly to use within novel spirit and principle at this, any amendment done, equivalent replacement, improvement etc., within the protection domain that all should be included in utility model.
Claims (7)
1. a portable protective relaying device tripping operation exit tester, it is characterized in that: comprise circuit board body (100), and the tripping operation pulse detection input interface (1) be arranged in circuit board body (100), pulse timing input interface (7), power input interface (10) and Control Component (200), described Control Component (200) comprises detection module (2), testing control module (3), detect indicating module (4), timing starts module (5) and LCD LCD MODULE (6), described testing control module (3) respectively with detection module (2), detect indicating module (4), start module (5) to be connected with LCD LCD MODULE (6), described pulse timing input interface (7) and timing start after module (5) is connected and are connected with testing control module (3), described tripping operation pulse detection input interface (1) is connected with detection module (2).
2. one according to claim 1 portable protective relaying device tripping operation exit tester; it is characterized in that: described detection indicating module (4) is at least eight instruction passages; described detection module (2) is at least two sense channels, and described startup mould (2) block is at least one and starts passage.
3. one according to claim 1 and 2 portable protective relaying device tripping operation exit tester, it is characterized in that: described detection module (2) comprises resistance R1, resistance R2, resistance R3, triode Q1 and breakback protector D1, the anode of described breakback protector D1 is connected with tripping operation pulse detection input interface (1), the negative electrode of described breakback protector D1 is connected with one end of resistance R1, the other end of described resistance R1 respectively with one end of resistance R2, one end of resistance R3 connects, the other end of described resistance R3 is connected with the base stage of triode Q1, the collector of described triode Q1 respectively with one end of resistance R4, the I/O0 expanding channels of testing control module (3), the other end of described resistance R4 is connected with power input interface (10), the other end of resistance R2 and the emitter of triode Q1 are all connected to ground.
4. one according to claim 1 and 2 portable protective relaying device tripping operation exit tester, it is characterized in that: described detection indicating module (4) comprises resistance R5, resistance R6, triode Q2 and light emitting diode D2, one end of described resistance R5 and the I/O2 expanding channels of testing control module (3), the other end of described resistance R5 is connected with triode Q2 base stage, described triode Q2 collector is connected with the negative electrode of light emitting diode D2, the anode of described light emitting diode D2 is connected with one end of resistance R6, the other end of described resistance R6 is connected with power input interface (10), the emitter of described triode Q2 is connected to ground.
5. one according to claim 3 portable protective relaying device tripping operation exit tester, is characterized in that: the voltage breakdown of described breakback protector D1 is 1000V.
6. one according to claim 1 portable protective relaying device tripping operation exit tester; it is characterized in that: described LCD LCD MODULE (6) comprises the first LCD liquid crystal display screen (61) and the second LCD liquid crystal display screen (62); the adapter that described first LCD liquid crystal display screen (61) and the second LCD liquid crystal display screen (62) are all passed through in circuit board body (1) is connected with testing control module (3), and is fixedly installed on circuit board body (1) surface.
7. one according to claim 6 portable protective relaying device tripping operation exit tester; it is characterized in that: described first LCD liquid crystal display screen (61) and the second LCD liquid crystal display screen (62) are 12864LCD LCDs, and described testing control module is STC series monolithic.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520912913.0U CN205176220U (en) | 2015-11-16 | 2015-11-16 | Portable overload protection device tripping operation export tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520912913.0U CN205176220U (en) | 2015-11-16 | 2015-11-16 | Portable overload protection device tripping operation export tester |
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| Publication Number | Publication Date |
|---|---|
| CN205176220U true CN205176220U (en) | 2016-04-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520912913.0U Expired - Fee Related CN205176220U (en) | 2015-11-16 | 2015-11-16 | Portable overload protection device tripping operation export tester |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107422250A (en) * | 2017-09-08 | 2017-12-01 | 广东电网有限责任公司惠州供电局 | A kind of relay protection circuit integrity tester |
| CN109683088A (en) * | 2019-02-01 | 2019-04-26 | 国家电网有限公司 | Trip pressing plate detection instrument based on electromagnetic pulse induction |
| CN110488083A (en) * | 2019-08-16 | 2019-11-22 | 国网安徽省电力有限公司滁州供电公司 | A kind of relay protection outlet pressing plate pulse voltage detection device, method and circuit |
| CN110632447A (en) * | 2019-09-05 | 2019-12-31 | 深圳供电局有限公司 | On-site calibration method and system for power grid relay protection tripping outlet loop |
| CN110865261A (en) * | 2019-11-29 | 2020-03-06 | 国网四川省电力公司眉山供电公司 | Protection device outlet matrix calibrator and calibration method |
| CN111856191A (en) * | 2020-07-31 | 2020-10-30 | 国网山东省电力公司鄄城县供电公司 | Protection device test box and protection device test system |
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2015
- 2015-11-16 CN CN201520912913.0U patent/CN205176220U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107422250A (en) * | 2017-09-08 | 2017-12-01 | 广东电网有限责任公司惠州供电局 | A kind of relay protection circuit integrity tester |
| CN107422250B (en) * | 2017-09-08 | 2023-05-05 | 广东电网有限责任公司惠州供电局 | Relay protection circuit integrity tester |
| CN109683088A (en) * | 2019-02-01 | 2019-04-26 | 国家电网有限公司 | Trip pressing plate detection instrument based on electromagnetic pulse induction |
| CN110488083A (en) * | 2019-08-16 | 2019-11-22 | 国网安徽省电力有限公司滁州供电公司 | A kind of relay protection outlet pressing plate pulse voltage detection device, method and circuit |
| CN110632447A (en) * | 2019-09-05 | 2019-12-31 | 深圳供电局有限公司 | On-site calibration method and system for power grid relay protection tripping outlet loop |
| CN110865261A (en) * | 2019-11-29 | 2020-03-06 | 国网四川省电力公司眉山供电公司 | Protection device outlet matrix calibrator and calibration method |
| CN111856191A (en) * | 2020-07-31 | 2020-10-30 | 国网山东省电力公司鄄城县供电公司 | Protection device test box and protection device test system |
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| C14 | Grant of patent or utility model | ||
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160420 Termination date: 20161116 |