CN204203383U - Testing apparatus - Google Patents

Abstract

The utility model discloses a kind of testing apparatus.Wherein, testing apparatus comprises: moveable test board; Tester, is arranged on described test board, is connected with relay protector to be measured, for testing described relay protector to be measured.By the utility model, solve the mobile inconvenient problem of testing apparatus, reach and improve the effect that testing apparatus moves dirigibility.

Description

Test Equipment

technical field

The utility model relates to the testing field, in particular to a testing device.

Background technique

The relay protector is a comprehensive relay protection device based on the unprocessor design, which integrates the relay protection of Inverter Time and Independent Time. Protective relays are often used to provide safety protection for electrical equipment, such as short-circuit and ground fault protection for transformers, motors, generators, and transmission lines in power distribution systems.

Since the relay protector is a device that provides safety protection for power equipment, its basic functions and performance are crucial to the safety protection of power equipment, so it is necessary to perform regular performance tests on the relay protector. At present, for the test of the relay protector, the test equipment used for testing the relay protector is usually manually moved to the test site of the relay protector, or the relay protector is tested at the test site. However, the test equipment usually includes a variety of instruments. When testing the relay protector, the entire set of test equipment needs to be moved to the test site. The movement of the test equipment is inconvenient, which affects the test of the relay protector.

Aiming at the problem of inconvenient movement of the test equipment in the prior art, no effective solution has been proposed yet.

Utility model content

The main purpose of the utility model is to provide a testing device to solve the problem of inconvenient movement of the testing device.

In order to achieve the above object, according to one aspect of the present utility model, a testing device is provided. The testing equipment according to the present invention comprises: a movable testing platform; a tester, which is arranged on the testing platform, is connected with the relay protector to be tested, and is used for testing the relay protector to be tested.

Further, the test equipment further includes: a power quality detector, which is set on the test bench and connected to the tester, and is used to detect the output signal of the tester.

Further, the test equipment further includes: a terminal block, arranged in front of the test bench, for connecting the tester and the relay protector under test in a plug-in or fixed connection.

Further, the terminal row is a terminal row using Phoenix terminals.

Further, the test equipment further includes a power plug, which is arranged on the test bench and connected to the tester through wires, and is used for plugging into a power socket to provide power to the tester.

Further, the test equipment further includes: a leakage protector, connected in series between the tester and the power plug, and used for leakage protection of the tester.

Further, the electric energy is alternating current, and the test equipment further includes: a rectifier, arranged on the test bench, connected to the power plug, and used for converting the alternating current into direct current.

Further, the test equipment further includes a splitter, and the splitter includes: an input end connected to the power plug; a first output end connected to the rectifier for transmitting the alternating current to the rectifier; and a second output terminal for outputting the alternating current.

Further, the testing device further includes a grounding device, and both the tester and the relay protector to be tested are grounded through the grounding device.

Further, the grounding device includes a grounding bar, wherein the tester and the relay protector under test are connected to the grounding bar.

Through the embodiment of the present invention, by adopting a movable test platform, the tester is set on the movable test platform for testing the relay protector, so that the test equipment can be moved flexibly, and the problem of the test equipment is solved. The problem of inconvenient movement has been solved, and the effect of improving the mobile flexibility of the test equipment has been achieved.

Description of drawings

The accompanying drawings constituting a part of this application are used to provide a further understanding of the utility model, and the schematic embodiments of the utility model and their descriptions are used to explain the utility model, and do not constitute an improper limitation of the utility model. In the attached picture:

Fig. 1 is the schematic diagram according to the test equipment of the utility model embodiment;

Fig. 2 is the schematic diagram according to the preferred test equipment of the utility model embodiment;

Detailed ways

It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The utility model will be described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.

In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiment of the utility model. Obviously, the described The embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

It should be noted that the terms "first" and "second" in the specification and claims of the present utility model and the above drawings are used to distinguish similar objects, but not necessarily used to describe a specific order or sequence . It should be understood that the data so used may be interchanged under appropriate circumstances in order to facilitate the embodiments of the invention described herein. Furthermore, the terms "comprising" and "having", as well as any variations thereof, are intended to cover a non-exclusive inclusion, for example, a process, method, system, product or device comprising a sequence of steps or elements is not necessarily limited to the expressly listed instead, may include other steps or elements not explicitly listed or inherent to the process, method, product or apparatus.

According to an aspect of an embodiment of the present utility model, a testing device is provided, and the testing device can be used for testing a relay protector.

FIG. 1 is a schematic diagram of a testing device according to an embodiment of the present invention. As shown in FIG. 1 , the test equipment includes: a movable test platform 10 and a tester.

The movable test stand 10 can be a test vehicle for testing, and the test stand 10 can be moved to the place where the test needs to be performed. The tester can be set on the test bench, or can be connected to the test bench 10 after wiring (such as terminal blocks, etc.), and finally connected to the relay protector 30 to be tested (connection relationship is not shown in the figure), the tester uses To test the relay protector 30 to be tested. The relay protector 30 to be tested is a relay protector that needs to be tested, that is, the device under test.

The relay protector 30 can be placed inside the test bench 10 , can also be placed on the test bench 10 , or placed outside the test bench 10 . The tester may be a relay protection tester, which is used to test the relay protector. The relay protection tester can test a variety of AC and DC, current, voltage, intermediate, self-holding, signal and other single relay protectors and the entire group of relay protection screens.

According to the embodiment of the utility model, by adopting a movable test bench, a tester is set on the movable test bench for testing the relay protector, so that the test equipment can be moved flexibly, and the problem of the test equipment is solved. The problem of inconvenient movement has been solved, and the effect of improving the mobile flexibility of the test equipment has been achieved.

The test equipment also includes a power quality detector, which is set on the test bench and connected with the tester to detect the output signal of the tester.

When it is necessary to test the stability of the relay protector for a long time, it is necessary to add the amount to the relay protector to test the long-term operation stability of the relay protector. By setting up a power quality detector on the test bench, it is used to detect and analyze the output information of the tester, wherein the output information can be the output current or output voltage of the tester to the relay protector to reflect the power quality information. By using the power quality detector to detect the power quality, it can ensure that the power quality information can be checked in time when the electromechanical protector is tested for a long time, and the test error caused by the power quality problem can be avoided.

Preferably, the test equipment further includes a terminal block, which is arranged in front of the test bench, and is used to connect the tester and the relay protector to be tested by plugging or fixed connection. The terminal block is a terminal assembly carrying multiple or multiple sets of phase insulation, and is used to fix and support the insulating parts. The terminal block connects the lines of the on-screen equipment and the off-screen equipment, and plays the role of signal (current and voltage) transmission. Due to the use of terminal blocks, complex and messy wiring of test equipment is avoided, error-prone and easy to maintain.

Specifically, the terminal block can be provided with wiring ports in sections, for example, divided into voltage sections, current sections, input and output sections, and AC and DC power supply sections, etc., wherein the number of wiring ports in each section can be adjusted according to the requirements of the test or test. Setting, so as to ensure the orderliness of wiring.

Further preferably, the terminal block is a terminal block using phoenix terminals.

Preferably, the test equipment further includes a power plug, which is arranged on the test bench and connected to the tester through wires, and is used for plugging into a power socket to provide power to the tester. The test equipment can uniformly provide electric energy through the power plug, and the electric energy is alternating current, and each instrument in the test equipment can realize unified power connection through the power plug.

Preferably, the test equipment further includes a leakage protector, which is connected in series between the tester and the power plug, and is used for leakage protection of the tester.

Leakage protectors can be called leakage switches or leakage circuit breakers. They are mainly used to protect personal contacts that are fatal when the equipment sends leakage faults. It has overload and short-circuit protection functions and can be used to protect circuits or motors from overload and Short circuit can also be used to start the infrequent conversion of the seat line under normal conditions.

In the embodiment of the utility model, by adding a leakage protector, the effect of leakage protection for testing equipment is achieved.

Preferably, the electric energy is alternating current, and the test equipment further includes: a rectifier, arranged on the test bench, connected to a power plug, and used for converting the alternating current into direct current.

Wherein, the electric energy is electric energy connected through a power plug, usually alternating current. However, in the process of use, relay protectors often use direct current. By adding a rectifier, it is used to convert the connected alternating current into the direct current required for testing, so as to provide direct current to the relay protector and avoid moving the test equipment. The problem of the test system that the direct current cannot be included in the location and needs to be connected to an additional direct current device is achieved to achieve the effect of convenient use.

Preferably, the testing device further includes a splitter, and the splitter includes an input end, a first output end and a second output end. The input end is connected with the power plug; the first output end is connected with the rectifier, and is used for transmitting the alternating current to the rectifier; and the second output end is used for outputting the alternating current.

In the embodiment of the utility model, the rational distribution of alternating current and direct current is realized by using a splitter, so that the test equipment can provide both alternating current and direct current.

Preferably, the testing equipment further includes grounding equipment, and both the tester and the relay protector to be tested are grounded through the grounding equipment. Further, the grounding device includes a grounding bar, wherein the tester and the relay protector to be tested are connected to the grounding bar.

Fig. 2 is a schematic diagram of a preferred testing device according to an embodiment of the present invention. As shown in Figure 2, the movable test bench 10 is divided into left and right parts, and the left side includes three layers of space, and the upper floor 101 is a unified plane of the movable test bench 10, which can be used to place the tester 20, and can also be used for Place the test object, or as a writing desk for recording data; the middle layer 102 can be used to place the device under test, that is, the relay protector 30 to be tested; the lower layer 103 can be used to place a DC power generator and a power quality monitor.

The right side of movable test bench 10 comprises three layers of drawers, and upper strata drawer 104 is the storage place of test record, middle layer 105 can place instruction book storage place, and lower floor 106 can place wiring equipment storage place.

As shown in FIG. 2 , the movable test stand 10 is further provided with a terminal row 40 , and the terminal row 40 is arranged on the side (or front) of the movable test stand 10 .

The front of the movable test bench 10 is provided with a terminal block, and the terminal block can use phoenix terminals to connect the relay protector to be tested and the tester in a plug-in or fixed way. The movable test bench 10 and the relay protector to be tested are unified and grounded with the ground wire.

The working process of the utility model embodiment is described in detail below.

There are two types of tests for the relay protector to be tested, one is general test and the other is long-term test. Among them, the ordinary test does not need to monitor the output stability of the relay protection tester. In this test, the relay protection tester is placed next to the movable test bench 10, and its AC output terminal is plugged into the port of the movable test bench 10. The corresponding position of the terminal block, the unified grounding point of the movable test bench 10 is connected to the ground bar, and the power plug of the test equipment is plugged into the power socket, so that the movable test bench 10 is energized together and the AC and DC are reasonably distributed. The corresponding terminal blocks of the two streets of the relay protector to be tested are connected to the analog circuit breaker or the binary input of the simulation test system.

The long-term test needs to monitor the output stability of the relay protection tester. In this test, a power quality detector needs to be connected. The corresponding position of the terminal row of the test bench 10, the unified grounding point of the movable test bench 10 is connected to the ground bar, the power plug of the test equipment is plugged into the power socket, so that the power in the movable test bench 10 is energized together, and Reasonable distribution of AC and DC. The corresponding terminal blocks of the two streets of the relay protector to be tested are connected to the analog circuit breaker or the binary input of the simulation test system.

The test equipment of the utility model can be used for the closed-loop test of the relay protection device based on ADPSS, and can also be used for the on-site debugging of the relay protection device of the substation, and can also be used for the detection of power distribution terminals, etc., and the use effect is good.

From the above description, it can be seen that the utility model has achieved the following technical effects:

(1) Solve the problem of complex, time-consuming and messy wiring of test technology, and it is difficult to find errors;

(2) Improve work efficiency and wiring accuracy;

(3) Solve the problem of adding amount to the protection device for a long time, and test the long-term operation stability of the device;

(4) Set up power quality detectors and increase monitoring means;

(5) Solve the problems that the test vehicle has no grounding point, no device power supply, no leakage protection, etc., and enhance the safety of the test work.

Through the use of terminal blocks, the problems of complex, time-consuming, messy and difficult to find errors in test technology wiring are solved, and work efficiency and wiring accuracy are enhanced. The testing equipment of the utility model has strong mobility, flexible testing, simplifies wiring, increases grounding and leakage protection at the same time, enhances the safety of testing, sets up a power quality detector, increases testing and monitoring means, and improves work efficiency.

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. For those skilled in the art, the present utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present utility model shall be included in the protection scope of the present utility model.

Claims (10)

1. a testing apparatus, is characterized in that, comprising:

Moveable test board;

Tester, is arranged on described test board, is connected with relay protector to be measured, for testing described relay protector to be measured.

2. testing apparatus according to claim 1, is characterized in that, described testing apparatus also comprises:

Power Quality Detection instrument, is arranged on described test board, is connected with described tester, for detecting the output signal of described tester.

3. testing apparatus according to claim 1, is characterized in that, described testing apparatus also comprises:

Terminal block, is arranged on before described test board, for connecting described tester and described relay protector to be measured with inserting mode or the mode that is fixedly connected with.

4. testing apparatus according to claim 3, is characterized in that, described terminal block is the terminal block adopting phoenix terminal.

5. testing apparatus according to claim 1, is characterized in that, described testing apparatus also comprises attaching plug, is arranged on described test board, is connected by wire with described tester, for socket power socket to provide electric energy to described tester.

6. testing apparatus according to claim 5, is characterized in that, described testing apparatus also comprises:

Earth leakage protective device, is connected between described tester and described attaching plug, for the earth leakage protection to described tester.

7. testing apparatus according to claim 5, is characterized in that, described electric energy is alternating current, and described testing apparatus also comprises:

Rectifier, is arranged on described test board, is connected with described attaching plug, for described alternating current is converted to direct current.

8. testing apparatus according to claim 7, is characterized in that, described testing apparatus also comprises deconcentrator, and described deconcentrator comprises:

Input end, is connected with described attaching plug;

First output terminal, is connected with described rectifier, for giving described rectifier by described alternating current transmission; And

Second output terminal, for exporting described alternating current.

9. testing apparatus according to claim 1, is characterized in that, described testing apparatus also comprises grounding apparatus, and described tester and described relay protector to be measured are all by described grounding apparatus ground connection.

10. testing apparatus according to claim 9, is characterized in that, described grounding apparatus comprises earthing bar, and wherein, described tester and described relay protector to be measured are connected to described earthing bar.