Relay testing device capable of giving sound-light alarm
By designing a relay test device that can be acousto-optical alarm, integrating rectifier voltage regulation power module and calibration loop, and using acousto-optical alarm and high-precision timing module, the complexity and inefficiency of DC relay calibration in secondary equipment debugging of substations is solved, and portable and efficient and accurate testing is achieved.
Patent Information
- Application Number
- CN202421932463.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-09
- Publication Date
- 2025-07-04
- Estimated Expiration
- 2034-08-09
AI Technical Summary
In the debugging of secondary equipment of substations, the DC relay calibration work has problems such as single on-site testing methods, complex test wiring, large judgment errors, large equipment size, inconvenient movement and prolonging the test time.
A relay testing device that can be used for sound and light alarm is designed, integrating a rectifier voltage regulation power module, function switching handle, power calibration circuit and time calibration circuit. The red and green acoustic and light alarms are used to intuitively prompt the tester's relay operation, and combine high-precision timing module and multi-functional meter to achieve fast and accurate testing.
It realizes portability, functional integration and wiring simplification of test equipment, reduces human errors, improves test accuracy and efficiency, reduces labor intensity, and can replace large and bulky equipment.
Smart Images
Figure CN223065457U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of relay testing, in particular to a relay testing device with audible and visual alarms. Background Art
[0002] At present, during the commissioning of secondary equipment in substations, a large number of DC relay calibration tasks need to be completed on-site, including the start-up test of the rated power supply voltage of relay protection devices, the power test of outlet relays, and the time test of the breaker non-full-phase time relay. The existing on-site testing methods are single, the test wiring is complex, the judgment error is large, the test equipment is large and not convenient to move on-site, which increases the labor intensity of personnel and prolongs the testing time. Summary of the Invention
[0003] In order to solve the technical problems existing in the above technology, in view of this, it is necessary to provide a relay testing device with audible and visual alarms.
[0004] A relay testing device with audible and visual alarms includes a rectifier voltage regulating power supply module, a function switching handle, a power calibration circuit, and a time calibration circuit;
[0005] The rectifier voltage regulating power supply module is connected to an AC power supply;
[0006] The function switching handle is connected in series between the positive and negative terminals of the rectifier voltage regulating power supply module;
[0007] A first DC multi-functional meter for measuring the voltage of the relay is connected in series between the positive and negative terminals of the rectifier voltage regulating power supply module;
[0008] The power calibration circuit is connected to the rectifier voltage regulating power supply module through the function switching handle; the power calibration circuit includes a second DC multi-functional meter for measuring the current of the DC relay connected in parallel with the first DC multi-functional meter, and a red audible and visual alarm connected in parallel with the first DC multi-functional meter; a DC time relay can be connected in series on the second DC multi-functional meter circuit;
[0009] The time calibration circuit is connected to the rectifier voltage regulating power supply module through the function switching handle; the time calibration circuit includes a timing module connected in parallel with the first DC multi-functional meter, a green audible and visual alarm connected in parallel with the timing module, and a bypass for connecting a time relay connected in parallel with the timing module.
[0010] Preferably, a self-locking start test push-button switch is connected in series in the time calibration circuit.
[0011] Preferably, a DC air switch is connected in series between the positive and negative terminals of the rectifier voltage regulating power supply module.
[0012] Preferably, both the first DC multi-functional meter and the second DC multi-functional meter adopt liquid crystal digital display.
[0013] Preferably, the rectifying and voltage-regulating power supply module is connected to an AC power supply through a double-insurance switch power socket.
[0014] Compared with the prior art, the relay test device with audible and visual alarm provided by the present utility model uses a red and green audible and visual alarm to remind the tester of the operation of the relay, directly reads the current, voltage and power values at the moment of operation, and accurately and efficiently judges the setting value of the operation time of the time relay. Through trial use, it is proved that the present utility model can not only replace the original bulky calibration equipment for power relays and time relays, but also provide an adjustable DC power supply of 0-230V for the test power supply. The portability, functional integration, simplicity of test wiring and accuracy of data judgment of the test equipment can effectively shorten the wiring preparation time before the test, reduce the factors of human judgment errors, and reduce the labor intensity of the testers. It not only improves the test accuracy, but also shortens the test time, and can completely replace the existing large-volume DC relay test equipment. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for describing the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present utility model, and those of ordinary skill in the art can also obtain other drawings based on these drawings without creative efforts.
[0016] Figure 1 It is a schematic structural diagram of the present utility model.
[0017] In the figure: rectifying and voltage-regulating power supply module TYDY, double-insurance switch power socket KG, function switching handle QH, first DC multi-functional meter PW1, second DC multi-functional meter PW2, red audible and visual alarm BJ, DC relay BCJ, DC air switch ZK, voltage-regulating knob XN, DC time relay BKT, green audible and visual alarm LD, timing module JS, self-locking start test button AN DETAILED DESCRIPTION OF THE EMBODIMENTS
[0018] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.
[0019] In the description of the present utility model, it should be understood that the terms "upper", "middle", "outer", "inner", "lower", etc. indicating the orientation or position relationship are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model.
[0020] The present utility model provides a relay test device capable of sound and light alarm, including a rectifying and voltage regulating power supply module TYDY, a function switching handle QH, a power verification circuit, and a time verification circuit; the rectifying and voltage regulating power supply module TYDY is connected to an AC power supply. The function switching handle QH is connected in series between the positive and negative terminals of the rectifying and voltage regulating power supply module TYDY. A first DC multi-functional meter PW1 for measuring the voltage of a DC relay is connected in series between the positive and negative terminals of the rectifying and voltage regulating power supply module TYDY. The power verification circuit is connected to the rectifying and voltage regulating power supply module TYDY through the function switching handle QH; the power verification circuit includes a second DC multi-functional meter PW2 for measuring the current of the relay, which is connected in parallel with the first DC multi-functional meter PW1, and a red sound and light alarm BJ, which is also connected in parallel with the first DC multi-functional meter PW1; a DC relay BCJ can be connected in series on the circuit of the second DC multi-functional meter PW2. The time verification circuit is connected to the rectifying and voltage regulating power supply module TYDY through the function switching handle QH; the time verification circuit includes a timing module JS connected in parallel with the first DC multi-functional meter PW1, a green sound and light alarm LD connected in parallel with the timing module JS, and a bypass for connecting a DC time relay BKT, which is also connected in parallel with the timing module JS. Among them, the timing module JS adopts a high-precision timing module JS.
[0021] A self-locking start test button AN is connected in series in the time verification circuit.
[0022] A DC air switch ZK is connected in series between the positive and negative terminals of the rectifying and voltage regulating power supply module TYDY.
[0023] Both the first DC multi-functional meter PW1 and the second DC multi-functional meter PW2 adopt liquid crystal digital display.
[0024] The rectifying and voltage regulating power supply module TYDY is connected to the AC power supply through a double-insurance switch power socket KG; the double-insurance switch power socket KG adopts a three-in-one pin double-insurance switch power socket KG.
[0025] When in use, the implementation method of DC relay power verification is as follows: As Figure 1As shown in the figure, the DC relay BCJ to be measured is connected to the circuit through the reserved banana jacks PK1 and PK2. The red audible and visual alarm BJ takes the normally open node of the DC relay BCJ to be measured through the reserved banana jacks PK3 and PK4 and then is connected to the circuit. Switch the function switch handle QH to the DC relay power test gear. The AC power supply is connected to the rectifier and voltage regulator power module TYDY through the double-fuse switch power socket KG of the triple-phase flat plug. Close the DC air switch ZK. Adjust the voltage regulating knob XN on the control panel of the rectifier and voltage regulator power module TYDY until the red audible and visual alarm BJ alarms, indicating that the relay to be measured has operated. At this time, observe and record whether the voltage and power values displayed by the first DC multi-functional meter PW1 and the current value displayed by the second DC multi-functional meter PW2 meet the requirements of the regulations. After the test, adjust the voltage output to the minimum output and turn off the double-fuse switch power socket KG.
[0026] When in use, the implementation method of DC time relay calibration is as follows: Figure 1 As shown in the figure, through the reserved banana jacks TK1, TK2, TK3, TK4, TK5, and TK6, the DC time relay BKT to be measured, the green audible and visual alarm LD, and the high-precision timing module JS are connected to the test circuit. Switch the function switch handle QH to the DC time relay test gear and adjust the self-locking start test button AN to the reset position. The AC power supply is connected to the rectifier and voltage regulator power module TYDY through the double-fuse switch power socket KG of the triple-phase flat plug. Close the DC air switch ZK. Adjust the voltage regulating knob XN on the control panel of the rectifier and voltage regulator power module TYDY and observe that the DC voltage displayed by the first DC multi-functional meter PW1 is the rated voltage of the DC time relay. Press the self-locking start test button AN to start the DC time relay BKT to be measured. At the same time, the normally closed node of the DC time relay BKT to be measured starts the high-precision timing module JS to start timing through TK3 and TK4. After the DC time relay BKT to be measured operates, the normally closed node disconnects, and the high-precision timing module JS stops timing. At the same time, the normally open node of the DC time relay BKT to be measured closes, and the green audible and visual alarm LD is started through TK5 and TK6 to indicate to the tester that the relay has operated. At this time, read the time displayed by the high-precision timing module JS and compare it with the set time of the DC time relay BKT to be measured, thereby completing the calibration of the time relay.
[0027] The above-disclosed is only the preferred embodiment of the present utility model. Of course, it cannot be used to limit the scope of rights of the present utility model. Those of ordinary skill in the art can understand all or part of the processes of implementing the above embodiments, and the equivalent changes made according to the claims of the present utility model still fall within the scope covered by the utility model.
Claims
1. A relay test device capable of acoustic and optical alarm, characterized in that: It includes a rectifying and voltage-regulating power supply module, a function switching handle, a power verification circuit, and a time verification circuit; The rectifying and voltage-regulating power supply module is connected to an AC power supply; The function switching handle is serially connected between the positive and negative terminals of the rectifying and voltage-regulating power supply module; A first DC multi-functional meter for measuring the voltage of a DC relay is serially connected between the positive and negative terminals of the rectifying and voltage-regulating power supply module; The power verification circuit is connected to the rectifying and voltage-regulating power supply module through the function switching handle; the power verification circuit includes a second DC multi-functional meter for measuring the relay current, which is connected in parallel with the first DC multi-functional meter, and a red audible and visual alarm, which is connected in parallel with the first DC multi-functional meter; a DC time relay can be serially connected to the circuit of the second DC multi-functional meter; The time verification circuit is connected to the rectifying and voltage-regulating power supply module through the function switching handle; the time verification circuit includes a timing module, which is connected in parallel with the first DC multi-functional meter, a green audible and visual alarm, which is connected in parallel with the timing module, and a bypass for connecting a time relay, which is connected in parallel with the timing module; 2. The relay testing device capable of acoustic and optical alarm according to claim 1, wherein: A self-locking start test button is serially connected in the time verification circuit; 3. The relay testing device capable of acoustic and optical alarm according to claim 1, wherein: A DC air switch is serially connected between the positive and negative terminals of the rectifying and voltage-regulating power supply module; 4. The relay test device capable of audible and visual alarm according to claim 1, characterized in that: Both the first DC multi-functional meter and the second DC multi-functional meter use liquid crystal digital displays; 5. The relay test device capable of acoustic and optical alarm according to claim 1, characterized in that: The rectifying and voltage-regulating power supply module is connected to the AC power supply through a double-insurance switch power socket;