CN104865521A - Instrument and method for testing action time of hand-held time relay - Google Patents
Instrument and method for testing action time of hand-held time relay Download PDFInfo
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- CN104865521A CN104865521A CN201510322879.6A CN201510322879A CN104865521A CN 104865521 A CN104865521 A CN 104865521A CN 201510322879 A CN201510322879 A CN 201510322879A CN 104865521 A CN104865521 A CN 104865521A
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Abstract
The invention discloses an instrument and a method for testing the action time of a hand-held time relay, relating to the technical field of testing of relays. The instrument comprises a hand-held tester host; a liquid crystal display screen, a contact detection terminal, a voltage output terminal, a power supply switch and a testing switch are arranged on the host; a control panel is arranged in the host; a single chip micro-computer, a boosted circuit, a voltage detection module and a contact detection module are arranged on the control panel; the single chip micro-computer is respectively connected with the boosted circuit, the voltage detection module and the contact detection module; the boosted circuit is also in control connection with the voltage detection module; the boosted circuit is connected to the voltage output terminal; the contact detection module is connected to the contact detection terminal; and the single chip micro-computer is connected to the testing switch and the liquid crystal display screen. The instrument disclosed by the invention is simple and convenient to operate, high in test speed, accurate in test result, visual and convenient to adjust the time relay, time-saving and labour-saving.
Description
Technical field
The present invention relates to relay testing technique field, especially relate to a kind of hand-held unbalanced three-phase lines time relay tester actuation time and method.
Background technology
In power industry, bonding apparatus has a power failure the unbalanced three-phase lines time relay of primary cut-out of testing, be one must regularly complete pay close attention to project.At present; the test of primary cut-out unbalanced three-phase lines relay actuation time; make an isolating switch wherein phase tripping by the mode of actual transmission; after the time delay of unbalanced three-phase lines relay; the other two-phase of tripping; regular inspection personnel are by the isolating switch auxiliary contact displacement time in protective relaying device, and indirect calculation goes out the actuation time of the unbalanced three-phase lines time relay.If actuation time is undesirable, then need in the isolating switch central console in primary equipment district after adjusting the actuation time of the time relay, the mode of carrying out taking turns actual transmission isolating switch again makes isolating switch tripping and calculates actuation time, so repeatedly, till actuation time reaches requirement.
Due to design and the reason such as aging of the time relay itself, the degree of regulation of some unbalanced three-phase lines time relays is not high, needs repeatedly transmission even just can be adjusted to the time value of requirement through the transmission of more than ten times.For a 500kV circuit regular inspection, two isolating switchs have four unbalanced three-phase lines relays, in ill situation, usually need to expend several hours and regulate.Nervous at power off time, when electric power one secondary device regular inspection safeguards cross-operation, take isolating switch for a long time and carry out unbalanced three-phase lines adjustment actuation time, often become a luxurious thing.Repeatedly transmission is except bringing temporal waste, and the short time carries out the divide-shut brake test of high strength to isolating switch, easily causes the physical construction fatigue breakdown of isolating switch, and easily causes exterior insulation porcelain vase to break.
Therefore, need time relay testing tool actuation time of light a, hand-held, test actuation time solving the isolating switch unbalanced three-phase lines time relay needs the problem of frequent transmission, time and effort consuming.
Summary of the invention
Goal of the invention of the present invention is: for above-mentioned Problems existing, provides a kind of time relay testing tool actuation time of light, hand-held, solves the problem that test actuation time of Switch main body unbalanced three-phase lines needs frequent transmission, time and effort consuming.Tester of the present invention is easy and simple to handle, and test speed is fast, and test result is accurate, and regulation time relay intuitive and convenient, saves time and manpower.
To achieve these goals, the technical solution used in the present invention is as follows:
A kind of hand-held time relay tester actuation time, comprises manual testing device main frame, main frame is provided with LCDs, contact detection terminal, output voltage terminals, power switch, Test Switchboard, is provided with control panel in main frame inside; Described control panel is provided with single-chip microcomputer, booster circuit, voltage detection module and contact detection module; Described single-chip microcomputer respectively with described booster circuit, voltage detection module, contact detection module control linkage, described booster circuit also with described voltage detection module control linkage; Described booster circuit connects output voltage terminals, described contact detection module connecting terminal detection terminal, described single-chip microcomputer connecting test switch and LCDs.Described relay is the time relay.
In the present invention, the effect of single-chip microcomputer is that output order control booster circuit boosts to setting value, the information of receiver voltage detection module, output order controls LCDs and shows ready information, the time that record test starts, receive the information of contact detection module, and according to various input information, calculate the actuation time of the time relay, and output order controls LCDs display result of calculation.
This tester can be powered by lithium ion chargeable battery or powered by direct current as power supply, the effect of booster circuit is the working power of high-tension electricity as the tested time relay that supply voltage is risen to setting value by the instruction sent according to single-chip microcomputer; The effect of voltage detection module judges whether the voltage of booster circuit reaches setting value, then voltage is reached the information notification single-chip microcomputer of setting value, tests to point out ready can beginning.The effect of contact detection module is the moment that detection time, action of relay contact occurred, and this moment is informed single-chip microcomputer.Through the time delay of certain hour after working power after time relay acquisition boosting, contact starts action, in this process, voltage detection module and contact detection module detect that the time relay is from the process being energized to action, by single-chip microcomputer analytical calculation, the actuation time of the time relay can be obtained.
In tester of the present invention, Test Switchboard is connected with single-chip microcomputer, brings into operation with out of service for controlling manual testing device.The effect of single-chip microcomputer exports to control the instruction that booster circuit boosts to setting value, receiver voltage detection module prompting voltage has reached the information of setting value, record starts the time of testing, accept the information of contact detection module, according to various input information, calculate test result, the principle of specific works is: described booster circuit is connected with single-chip microcomputer on the one hand, accept the instruction that single-chip microcomputer exports, by output voltage terminals, the voltage after boosting is outputted to the time relay to be measured on request, booster circuit connects voltage detection module on the other hand and accepts detection, voltage detection module judges whether booster circuit boosts to setting value, the moment that voltage is reached setting value by voltage detection module again informs single-chip microcomputer, show that preliminary work is ready, test can be started, after pressing feeler switch, single-chip microcomputer record starts the time of testing, the time relay obtains the voltage after boosting, through the time delay dead contact action of certain hour, contact detection module is connected with single-chip microcomputer on the one hand, be connected with the tested time relay by contact detection terminal on the other hand, after the action of time relay contact being detected, the moment of dead contact action is informed single-chip microcomputer, participation result calculates, contact starts the mistiming between the moment of action and test start time, be the pull up time that will test, the result of single-chip microcomputer calculating can be shown finally by display screen.This instrument test result is calculated by single-chip microcomputer, is accurate to Millisecond.
Further, described tester main frame being also provided with voltage increases button and voltage minimizing button, and voltage increases button and is all connected single-chip microcomputer with voltage minimizing button, with the voltage regulating booster circuit easily.
Further, described display screen, except the information that can demonstrate prompting and start to test with except showing test results, can also show the output voltage values set by single-chip microcomputer.
In sum, owing to have employed technique scheme, the invention has the beneficial effects as follows:
1, existing testing device for relay is bulky, and weigh tens even hundreds of jin, and need external AC, inconveniently uses in working site.And the present invention is handheld instrument, volume is little, adopts powered battery, and can provide boosting working power, practical especially for transformer station's interruption maintenance.
2, tester of the present invention can carry out on-line testing, large-scale testing device for relay can not be tested at substation field, the time relay is needed to remove from isolating switch loop, installing after test is good, this process relates to disconnecting of secondary circuit, careless slightly, namely the situation by mistake disconnecting line may occur, and is huge potential safety hazard.This tester compact, the on-line testing that can not take out stitches at the scene.If isolating switch loop itself is with power supply, then by obtaining the working power of the time relay by the form of wire short-circuited terminal, voltage detecting line and contact detection line is connected, can pull up time be calculated; If working power is not with in isolating switch loop, then tester is directly provided by battery and booster circuit module, without the need to carrying out test of taking out stitches, prevents from disconnecting line by mistake.
3, tester test speed of the present invention is fast, and regulation time relay intuitive and convenient, saves time and manpower.An isolating switch wherein phase tripping is made according to the conventional method by the mode of actual transmission, after the time delay of unbalanced three-phase lines relay, the other two-phase of tripping, regular inspection personnel are by the isolating switch auxiliary contact displacement time in protective relaying device, indirect calculation goes out the actuation time of the unbalanced three-phase lines time relay, if do not reach requirement, then notify that isolating switch site work personnel adjust time relay action definite value, then by breaker closing, wait breaker energy storage completes, empirically, once test approximately needs more than 10 minutes, and need arrangement two groups of personnel, one group in indoor relay protection chamber, one group at outdoor breaker body.And adopt this instrument, general 2 seconds of actuation time of the time relay, adjust accordingly facing to the time value of instrument display at the scene immediately, can next round test be carried out again at once, each adjustment test duration is no more than five seconds, only needs a group of people at outdoor breaker body.
Accompanying drawing explanation
Fig. 1 is the functional schematic of hand-held time relay tester actuation time of the present invention
Wherein, 1-tester main frame, 2-power switch, 3-voltage increases button, and 4-voltage reduces button, 5-Test Switchboard, 6-output voltage terminals, and electric wire is detected in 7-contact, and 8-voltage exports electric wire, 9-contact detection terminal, 10-LCDs;
Fig. 2 is the schematic diagram of the function of control panel in the present invention.
Embodiment
The present invention will protect a kind of time relay testing tool actuation time of light, hand-held, solves the problem that test actuation time of Switch main body unbalanced three-phase lines needs frequent transmission, time and effort consuming.Tester of the present invention is easy and simple to handle, and test speed is fast, and test result is accurate, and regulation time relay intuitive and convenient, saves time and manpower.
A kind of hand-held time relay tester actuation time, comprises manual testing device main frame, main frame is provided with LCDs, contact detection terminal, output voltage terminals, power switch, Test Switchboard, is provided with control panel in main frame inside; Control panel is provided with single-chip microcomputer, booster circuit, voltage detection module and contact detection module; Single-chip microcomputer respectively with described booster circuit, voltage detection module, contact detection module control linkage, booster circuit also with voltage detection module control linkage; Booster circuit connects output voltage terminals, contact detection module connecting terminal detection terminal, single-chip microcomputer connecting test switch and LCDs.
In some embodiments of the invention, described tester main frame being also provided with voltage increases button and voltage minimizing button, and voltage increases button and is all connected single-chip microcomputer with voltage minimizing button, with the voltage setting value regulating booster circuit easily.
In some embodiments of the invention, described display screen, except showing test results, can also show the output voltage values set by single-chip microcomputer.
Below by specific embodiment, also the invention will be further described by reference to the accompanying drawings.
As shown in Figure 1, for the functional schematic of hand-held time relay tester actuation time of the present invention, comprise manual testing device main frame 1, be located at the LCDs 10 in main frame 1 front, power switch 2, Test Switchboard 5, be located at contact detection terminal 9 and the output voltage terminals 6 at main frame 1 top, be also provided with the control panel of function in main frame 1 inside.
As shown in Figure 2, be the principle of work and power schematic diagram of control panel, control panel is provided with single-chip microcomputer, booster circuit, voltage detection module and contact detection module; Single-chip microcomputer respectively with booster circuit, voltage detection module, contact detection module control linkage, booster circuit also with voltage detection module control linkage; Booster circuit connects output voltage terminals, contact detection module connecting terminal detection terminal, single-chip microcomputer connecting test switch and LCDs.
As shown in Figure 1, described tester main frame being also provided with voltage increases button 3 and voltage minimizing button 4, and voltage increases button 3 and is all connected single-chip microcomputer with voltage minimizing button 4, with the voltage regulating booster circuit easily.
In the present invention, described display screen, except the information that can demonstrate prompting and start to test with except showing test results, can also show the output voltage values set by single-chip microcomputer.
Tester of the present invention is powered by lithium ion chargeable battery, produces the working power of high-tension electricity as the tested time relay by booster circuit.It can be the 12V plate-type battery of General Instrument that described lithium ion chargeable battery is powered.
In the present invention, the effect of single-chip microcomputer is that output order control booster circuit boosts to setting value, the information of receiver voltage detection module, output order controls LCDs and shows ready information, the time that record test starts, receive the information of contact detection module, and according to various input information, calculate the actuation time of the time relay, and output order controls LCDs display result of calculation.The effect of booster circuit is the working power of high-tension electricity as the tested time relay that supply voltage is risen to setting value by the instruction sent according to single-chip microcomputer; The effect of voltage detection module judges whether the voltage of booster circuit reaches setting value, then voltage is reached the information notification single-chip microcomputer of setting value.The effect of contact detection module is the moment that detection time, action of relay contact occurred, and this moment is informed single-chip microcomputer.
Tester of the present invention in use, first electric wire 7 connecting terminal detection terminal 9 and time relay output contact to be measured is detected with contact, export electric wire 8 with voltage and connect output voltage terminals 6 and time relay working power terminal to be measured, then instrument is opened by power switch 2, single-chip microcomputer exports and controls the instruction that booster circuit boosts to setting value, booster circuit receives instruction and starts boosting, voltage detection module judges whether the voltage of booster circuit arrives setting value, then voltage is reached the information notification single-chip microcomputer of setting value, after single-chip microcomputer receives the information of voltage detection module, single-chip microcomputer output order controls the information that LCDs 10 display starts to test, subsequently, operating personnel press Test Switchboard 5 and start test, the time that the test of single-chip microcomputer record starts, the time relay obtains the voltage after boosting, through the time delay dead contact action of certain hour, the contact detection module moment that detection time, action of relay contact started, and this moment is informed single-chip microcomputer, single-chip microcomputer calculates the moment that contact action starts and the mistiming of testing between the start time, and acquired results is the actuation time of the time relay, and result of calculation is shown by LCDs 10.
In addition, after opening instrument by power switch 2, start the step of testing by Test Switchboard 5 before, button 3 or voltage can be increased by voltage and reduce the setting value that button 4 regulates the voltage of booster circuit.
Adopt method of testing of the present invention, test and can complete second at 2-3, test result accurately and reliably, and can be accurate to Millisecond.If pull up time does not reach requirement, can adjust accordingly according to the time value of instrument display at the scene immediately, can carry out next round test again at once, each adjustment test duration is no more than five seconds, till relay actuation time is qualified.
Claims (10)
1. hand-held time relay tester actuation time, comprise manual testing device main frame (1), it is characterized in that: on main frame (1), be provided with LCDs (10), contact detection terminal (9), output voltage terminals (6), power switch (2), Test Switchboard (5), be provided with control panel in main frame (1) inside; Described control panel is provided with single-chip microcomputer, booster circuit, voltage detection module and contact detection module; Described single-chip microcomputer is connected with described booster circuit, voltage detection module, contact detection module respectively, described booster circuit also with described voltage detection module control linkage; Described booster circuit connects output voltage terminals (6), described contact detection module connecting terminal detection terminal (9), described single-chip microcomputer connecting test switch (5) and LCDs (10).
2. a kind of hand-held time relay tester actuation time according to claim 1, it is characterized in that: the effect of described single-chip microcomputer is that output order control booster circuit boosts to setting value, the information of receiver voltage detection module, output order controls LCDs and shows ready information, the time that record test starts, receive the information of contact detection module, and according to various input information, calculate the actuation time of the time relay, and output order controls LCDs display result of calculation.
3. a kind of hand-held time relay tester actuation time according to claim 2, is characterized in that: the effect of described booster circuit is the working power of high-tension electricity as the tested time relay that supply voltage is risen to setting value by the instruction sent according to single-chip microcomputer.
4. a kind of hand-held time relay tester actuation time according to claim 3, it is characterized in that: the effect of described voltage detection module judges whether the voltage of booster circuit reaches setting value, then voltage is reached the information notification single-chip microcomputer of setting value.
5. a kind of hand-held time relay tester actuation time according to claim 4, is characterized in that: the effect of described contact detection module is the moment that detection time, action of relay contact occurred, and this moment is informed single-chip microcomputer.
6. a kind of hand-held time relay tester actuation time according to claim 5, is characterized in that: described tester is powered by lithium ion chargeable battery, produces the working power of high-tension electricity as the tested time relay by booster circuit.
7. a kind of hand-held time relay tester actuation time according to claim 6, it is characterized in that: described main frame (1) being also provided with voltage increases button (3) and voltage minimizing button (4), and voltage increases button (3) and voltage minimizing button (4) is all connected with single-chip microcomputer.
8. a kind of hand-held time relay tester actuation time according to claim 1, is characterized in that: described contact detection terminal (9) and output voltage terminals (6) are positioned at the top of main frame (1).
9. the method for relay actuation time test duration, it is characterized in that comprising the following steps: first detect electric wire (7) connecting terminal detection terminal (9) and time relay output contact to be measured with contact, export electric wire (8) with voltage and connect output voltage terminals (6) and time relay working power terminal to be measured, then instrument is opened by power switch (2), single-chip microcomputer exports and controls the instruction that booster circuit boosts to setting value, booster circuit receives instruction and starts boosting, voltage detection module judges whether the voltage of booster circuit arrives setting value, then voltage is reached the information notification single-chip microcomputer of setting value, after single-chip microcomputer receives the information of voltage detection module, output order controls the information that LCDs (10) display starts to test, subsequently, operating personnel press Test Switchboard (5) and start test, the time that the test of single-chip microcomputer record starts, the time relay obtains the voltage after boosting, through the time delay dead contact action of certain hour, the contact detection module moment that detection time, action of relay contact started, and this moment is informed single-chip microcomputer, single-chip microcomputer calculates the moment that contact action starts and the mistiming of testing between the start time, and acquired results is the actuation time of the time relay, and result of calculation is shown by LCDs (10).
10. the method for a kind of relay actuation time test duration according to claim 9, it is characterized in that: after opening instrument by power switch (2), start the step of testing by Test Switchboard (5) before, button (3) or voltage can be increased by voltage and reduce the setting value that button (4) regulates the voltage of booster circuit.
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Cited By (6)
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| CN106483456A (en) * | 2016-09-23 | 2017-03-08 | 广东核电合营有限公司 | Million kilowatt nuclear power station time-delay relay trouble-shooter and method |
| CN106707158A (en) * | 2017-02-22 | 2017-05-24 | 江苏信息职业技术学院 | Time relay calibration device and calibration method thereof |
| CN109959863A (en) * | 2017-12-22 | 2019-07-02 | 中国南方电网有限责任公司超高压输电公司南宁局 | A kind of Multifunction relay testing instrument and operation voltage, action current test method |
| CN111458634A (en) * | 2020-05-29 | 2020-07-28 | 党楚涵 | Handheld power equipment relay on-line tester and testing method |
| CN113176438A (en) * | 2021-04-15 | 2021-07-27 | 国网湖北省电力有限公司宜昌供电公司 | Transformer substation secondary circuit detector and detection method |
| CN117007959A (en) * | 2023-09-27 | 2023-11-07 | 四川虹锐电工有限责任公司 | Relay action response time test system |
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| CN111458634A (en) * | 2020-05-29 | 2020-07-28 | 党楚涵 | Handheld power equipment relay on-line tester and testing method |
| CN113176438A (en) * | 2021-04-15 | 2021-07-27 | 国网湖北省电力有限公司宜昌供电公司 | Transformer substation secondary circuit detector and detection method |
| CN117007959A (en) * | 2023-09-27 | 2023-11-07 | 四川虹锐电工有限责任公司 | Relay action response time test system |
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| CN104865521B (en) | 2018-03-09 |
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