Test wire box suitable for relay protection tester

Abstract

The utility model provides a test wire box suitable for a relay protection tester. The test wire box comprises a wire box body and two first four-phase test wires. The wire box body is provided with a plurality of groups of jacks. During working, each group of jacks is connected with a disc cabinet current loop through a second four-phase test wire. The first ends of the two first four-phase test wires are respectively connected with two groups of current channels of a relay protection tester through first plugs, and the second ends of the two first four-phase test wires are respectively connected with two groups of jacks on the wire box body through second plugs. At the moment, two current channels in a disc cabinet current loop connected with the two groups of second four-phase test wires can be detected, and different current channels in the disc cabinet current loop can be detected by switching the second plug of the first four-phase test wire to be connected with different groups of jacks on the wire box body. Therefore, the wiring on the dense current terminal row does not need to be switched at a narrow disc cabinet in the testing process.

Description

Technical Field

[0001] The utility model relates to the technical field of relay protection testers, in particular to a test wire box suitable for relay protection testers. Background Art

[0002] Relay protection testers generally have only two groups of current channels, each with four channels, namely: A phase channel, B phase channel, C phase channel, and N phase channel. However, many relay protection devices usually collect more than two groups of currents. During the debugging of relay protection devices, due to the different CT currents used by various protection functions, when testing different protection functions, it is often necessary to change the position of the current test line on the current terminal block at the rear of the cabinet. The space at the rear of the cabinet is small, and the wiring positions of different CT current terminals are close. Frequent and repeated plugging and unplugging of current test lines is not only time-consuming and laborious, but also easy to insert the wrong terminal due to negligence. In addition, during debugging, it is necessary to observe the operation of the device panel. The debugging table is generally placed in the front of the cabinet. When changing the current test line, the debugging personnel need to frequently get up and walk to the rear of the cabinet to change the wiring, which adds trouble to the debugging personnel. Utility Model Content

[0003] The purpose of the utility model is to provide a test wire box suitable for a relay protection tester. Through the arrangement of the box body and the first four-phase test wire, the test process does not need to switch the wiring on the dense current terminal block in a narrow cabinet, avoiding frequent wiring changes in a small space that may cause errors, and also improving the labor intensity of workers. In order to achieve the above technical features, the purpose of the utility model is achieved as follows:

[0004] A test wire box suitable for a relay protection tester, comprising a wire box body and two first four-phase test wires;

[0005] The wire box body is provided with a plurality of groups of jacks;

[0006] During operation, each group of the sockets is connected to the cabinet current circuit through the second four-phase test line; the first ends of the two first four-phase test lines are connected to the two groups of current channels of the relay protection tester through the first plug, and the second ends of the two first four-phase test lines are connected to the two groups of sockets on the wire box body through the second plug.

[0007] The second plug at the second end of the first four-phase test line is installed on the handle to form an integral structure.

[0008] A recording board is provided on the wire box body at positions corresponding to the second four-phase test lines one by one, and the recording board is used to mark the name of the current circuit connected to the second four-phase test line.

[0009] The utility model has the following beneficial effects:

[0010] 1. Through the setting of the box body and the first four-phase test line, the test process does not need to switch the wiring on the dense current terminal block in the narrow cabinet, avoiding errors caused by frequent wiring changes in a small space and improving the labor intensity of workers;

[0011] 2. The second plug at the second end of the first four-phase test line is installed on the handle to form an integral structure. The second plug at the second end of the single first four-phase test line can be plugged in and out by manually pulling out and plugging in the handle once, which simplifies the wiring switching operation and saves time and effort.

[0012] 3. A recording board is provided on the junction box body corresponding to the second four-phase test line. The recording board is used to mark the name of the current circuit connected to the second four-phase test line, which can more intuitively obtain the number of the current circuit. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0014] Figure 1 The appearance diagram of the wire box body provided by the embodiment of the utility model;

[0015] Figure 2 An outline diagram of a first four-phase test line provided in an embodiment of the utility model;

[0016] Figure 3 This is the appearance diagram of the relay protection tester involved in the utility model;

[0017] In the figure: a junction box body 1, a socket 1a, a second four-phase test line 1b, a recording board 1c, a first four-phase test line 2, a first plug 2a, a second plug 2b, a handle 2c, a relay protection tester 3, and a current channel 3a. DETAILED DESCRIPTION

[0018] The implementation modes of the present utility model are further described below in conjunction with the accompanying drawings.

[0019] See attached Figure 1-3 In order to realize the above technical features, the purpose of the utility model is achieved as follows:

[0020] A test wire box suitable for a relay protection tester, comprising a wire box body 1 and two first four-phase test wires 2; the wire box body 1 is provided with a plurality of groups of jacks 1a; when working, each group of the jacks 1a is connected to a cabinet current loop through a second four-phase test wire 1b; the first ends of the two first four-phase test wires 2 are respectively connected to two groups of current channels 3a of a relay protection tester 3 through a first plug 2a, and the second ends of the two first four-phase test wires 2 are respectively connected to the two groups of jacks 1a on the wire box body 1 through a second plug 2b, so that the two can be tested. The two current channels in the current loop of the cabinet connected to the second four-phase test line 1b of the group are tested. By switching the second plug 2b of the first four-phase test line 2 to connect with different groups of jacks 1a on the box body 1, different current channels in the current loop of the cabinet can be tested. The test box of the present application is provided with the box body 1 and the first four-phase test line 2, so that the test process does not need to switch the wiring on the dense current terminal row in a narrow cabinet, avoids errors caused by frequent replacement of wiring in a small space, and also improves the labor intensity of workers.

[0021] Furthermore, the second plug 2b at the second end of the first four-phase test line 2 is installed on the handle 2c to form an integral structure. The second plug 2b at the second end of the single first four-phase test line 2 can be plugged in and out by manually pulling out and plugging in the handle 2c once, which simplifies the wiring switching operation and saves time and effort.

[0022] Furthermore, a recording board 1c is provided on the wire box body 1 and corresponds to the second four-phase test line 1b one by one. The recording board 1c is used to mark the name of the current loop connected to the second four-phase test line 1b, so as to obtain the number of the current loop more intuitively.

Claims

1. A test box suitable for a relay protection tester, characterized in that: It comprises a wire box body (1) and two first four-phase test wires (2); The wire box body (1) is provided with a plurality of groups of jacks (1a); When in operation, each group of the sockets (1a) is connected to the cabinet current loop via a second four-phase test line (1b); the first ends of the two first four-phase test lines (2) are connected to the two groups of current channels (3a) of the relay protection tester (3) via a first plug (2a); and the second ends of the two first four-phase test lines (2) are connected to the two groups of sockets (1a) on the wire box body (1) via a second plug (2b).

2. A test wire box suitable for a relay protection tester according to claim 1, characterized in that: The second plug (2b) at the second end of the first four-phase test line (2) is mounted on the handle (2c) to form an integral structure.

3. A test wire box suitable for a relay protection tester according to claim 2, characterized in that: A recording board (1c) is provided on the wire box body (1) at positions corresponding one to one with the second four-phase test wires (1b); the recording board (1c) is used to mark the name of the current circuit to which the second four-phase test wires (1b) are connected.

Images