CN104020326B - An adapter device for testing the mechanical characteristics of switches - Google Patents

Abstract

The invention discloses a kind of switching device tested used by switch machine characteristic, it includes lower casing and is arranged on the built-up circuit of enclosure；Described upper lower casing is connected through the hinge；The described built-up circuit being arranged on enclosure includes input test signal built-up circuit, combined floodgate test adaptor circuit, two-way separating brake test adaptor circuit and energy storage motor power supply transfer circuit；Described input test signal built-up circuit is made up of switching signal input jack H, sub-gate signal input jack F and common port jack G1；It is identical that described combined floodgate test adaptor circuit is formed described two-way separating brake test adaptor circuit structure by three jacks A, B, C and common port jack G2；Use wiring of the present invention reliably, safely, quickly, efficiently solve the security hidden trouble being likely to result under the former mode of connection.

Description

An adapter device for testing the mechanical characteristics of switches

technical field

The invention relates to a switching device used for testing the mechanical characteristics of switches, and is especially suitable for testing medium and high voltage electrical switches.

Background technique

When testing the mechanical characteristics of high-voltage electrical switches, the traditional connection method mostly uses crocodile clip connection. The hidden dangers and shortcomings of this connection method are as follows: (1) Incorrect clamp connection can easily lead to poor contact, and the measured data will be inaccurate Or the phenomenon that the circuit is blocked and the data cannot be obtained, resulting in the inability to perform normal tests, prolonging the test time and reducing work efficiency. (2) Most of the outlets leading to the mechanism side of the switch mechanism cabinet are on the upper side of the terminal block, and its joint direction is downward. Since the end of the joint is marked with "line number mark", after removing this joint, Due to the downward direction, the "line number identification" at the end of the connector is easy to fall off and be lost. This phenomenon will easily lead to: wrong wiring when restoring wiring; difficulty in troubleshooting the secondary circuit and prolonging the troubleshooting time; loss of "line number identification" Finally, if the on-site cannot re-sign in time, the cable will not be clearly marked, and the cable will be checked from the beginning to confirm the connection direction of the cable. (3) Some crocodile clips are not completely insulated. During the clip test, it is easy to short-circuit with other terminals and cause "blasting" or short-circuit safety hazards, especially the switch mechanism box with a busbar of 220kV is designed in phase separation. Since the mechanical characteristics test of the three phases is performed at the same time, more clips need to be clamped, so it is more likely to cause a short-circuit accident; (4) When testing the switch mechanism box with a bus bar of 220kV, because the switches are arranged in separate phases, when testing the switch, When switching on, it is necessary to frequently reverse the wiring, and during the period, the normal test will not be able to be performed due to improper clamping, which greatly reduces the work efficiency.

Contents of the invention

The technical problem to be solved by the present invention is to provide an adapter device for testing the mechanical characteristics of switches.

In order to solve the problems of the technologies described above, the technical scheme adopted in the present invention is as follows:

An adapter device for testing the mechanical characteristics of a switch, which includes an upper and lower shell and an adapter circuit arranged inside the shell; the upper and lower shells are connected by a hinge; the adapter circuit arranged inside the shell includes an input test signal adapter circuit, switch-on test switch circuit, two-way switch-off test switch circuit and energy storage motor power switch circuit;

The input test signal switching circuit is composed of the closing signal input jack H, the opening signal input jack F and the common terminal jack G1; the closing test switching circuit is composed of three jacks A, B, C It is composed of a common terminal jack G2; the jacks A, B, and C are all connected to the closing signal input jack H;

The two switch-off test transfer circuits have the same structure, wherein one switch-off test switch circuit is composed of a switch S1, three jacks A1, B1, C1 and a common terminal jack G3; the three jacks A1 , B1, and C1 are all connected to the opening signal input jack F through switch S1; the other opening test switching circuit is composed of switch S2, three jacks A2, B2, C2 and a common end jack G4 ;The above common jacks are all connected;

The power supply transfer circuit of the energy storage motor is composed of linkage switch S3, positive and negative pole inlet jacks J1-J2, and positive and negative pole outlet jacks C1-C2; the positive and negative pole inlet jacks J1 and J2 are connected via switch S3 Positive and negative outlet jacks C1, C2.

The beneficial effects produced by adopting the above-mentioned technical scheme are:

Adopt the one-time wiring of the present invention, and then use the on-off of the switch to switch the opening and closing circuit, and do not need to change the clips back and forth. Originally, one person tests the other and the other person needs to switch the clips. Through the present invention, one person can complete the wiring at one time, and only need to press the button when testing. It is enough to turn on or off the switch in the device, which saves 50% of manpower, effectively shortens the test time, and greatly improves the test efficiency. The wiring of the invention is reliable, safe and fast, and effectively solves the problem of the original wiring method. possible safety hazards.

Description of drawings

Fig. 1 is a diagram of the switching circuit arranged inside the casing according to the present invention.

detailed description

Referring to accompanying drawing 1, a kind of switch device used for testing switch mechanical characteristic of the present invention is characterized in that: it comprises upper and lower shell and is arranged on the switch circuit inside shell; Upper and lower shell is connected by hinge; The connection circuit includes an input test signal transfer circuit, a closing test transfer circuit, a two-way opening test transfer circuit and an energy storage motor power transfer circuit; the input test signal transfer circuit consists of a closing signal input jack H, a branch The gate signal input jack F and the common end jack G1 are composed; the switch-on test transfer circuit is composed of three jacks A, B, C and one common end jack G2; the jacks A, B, and C are all connected to the closing Signal input jack H; two switch-off test transfer circuits have the same structure, one of the switch-off test switch circuits is composed of switch S1, three jacks A1, B1, C1 and a common terminal jack G3; three jacks Holes A1, B1, and C1 are all connected to the opening signal input jack F through switch S1; the other opening test switching circuit is composed of switch S2, three jacks A2, B2, C2 and a common end jack G4; the above The common terminal jacks are all connected; the power transfer circuit of the energy storage motor is composed of the linkage switch S3, the positive and negative pole inlet jacks J1-J2 and the positive and negative pole outlet jacks C1-C2; the positive and negative pole inlet jacks J1 and J2 are connected through Switch S3 is connected to positive and negative outlet jacks C1 and C2.

Referring to accompanying drawing 1, course of work of the present invention is:

Switch test There are two sets of opening coils to be tested and one set of closing coils to be tested in the switch mechanism box to be tested. When connecting the circuit and doing the switch test test, the switch test characteristic instrument (existing equipment) sends the closing signal or the opening signal (that is, sends out the pulse power supply), and then transmits to the switch mechanism through the present embodiment and the terminal block successively to make the opening and closing signals The closing coil acts to drive the switch to complete the corresponding mechanical characteristic test.

This device also has the ability to directly provide an external power supply for the energy storage motor that stores energy in the high-voltage electrical switch mechanism box. In previous tests, when the energy storage motor power supply needs to be externally supplied with a temporary power supply, the "manual clamping" method is often used, which is prone to short-circuit faults or In the event of personal electric shock, this transfer device can also be used to complete one-time wiring, and then turn on the power after the connection is completed. When energy storage is required, pass through the energy storage motor power transfer circuit of this embodiment and close the linkage switch S3 in the device. Yes, just disconnect the linkage switch S3 when it is not needed, which not only reduces the repeated wiring links in the middle of the test, but also eliminates potential safety hazards.

Claims (1)

1. A switch device used for testing the mechanical characteristics of a switch, which includes an upper and lower casing and a switch circuit arranged inside the casing; the upper and lower casings are connected by a hinge; it is characterized in that: the switch circuit arranged inside the casing Including input test signal transfer circuit, closing test transfer circuit, two-way opening test transfer circuit and energy storage motor power transfer circuit; The input test signal switching circuit is composed of the closing signal input jack H, the opening signal input jack F and the common terminal jack G1; the closing test switching circuit is composed of three jacks A, B, C It is composed of a common terminal jack G2; the jacks A, B, and C are all connected to the closing signal input jack H; The two switch-off test transfer circuits have the same structure, wherein one switch-off test switch circuit is composed of a switch S1, three jacks A1, B1, C1 and a common terminal jack G3; the three jacks A1 , B1, and C1 are all connected to the opening signal input jack F through switch S1; the other opening test switching circuit is composed of switch S2, three jacks A2, B2, C2 and a common end jack G4 ;The above common jacks are all connected; The power supply transfer circuit of the energy storage motor is composed of linkage switch S3, positive and negative pole inlet jacks J1-J2, and positive and negative pole outlet jacks C1-C2; the positive and negative pole inlet jacks J1 and J2 are connected via switch S3 Positive and negative outlet jacks C1, C2.