CN104931740B - Quick switching device for Zero flux CT secondary electron module test wiring - Google Patents

Abstract

The present invention relates to the quick switching devices for Zero flux CT secondary electron module test wiring, realize that Zero flux CT secondary electron module is docked with progress plug between testing equipment, including taken amount terminal, selection switch, secondary electron module end plug, measuring device end plug, test wire, taken amount terminal one end is connect by test wire with secondary electron module end plug, the other end and selection switch connection, measuring device end plug are connect by test wire with selection switch end of incoming cables.Advantage is：Overcome that previous Zero flux CT secondary electron module test wiring is complicated, time-consuming, the defect of equipment easy to damage.Zero flux CT secondary electron module is realized to dock with progress plug between testing equipment, it avoids disconnecting line repeatedly on the terminals by testing equipment, it need not be powered off when measuring different parameters, change wiring, required parameter can be measured by only needing the selection on trip gear to switch.

Description

Quick switching device for zero-flux CT secondary electronic module test wiring

technical field

The invention belongs to the field of electric equipment testing, and in particular relates to a fast switching device for testing wiring of a CT secondary electronic module of a zero-flux current transformer.

Background technique

The zero-flux current transformer CT is widely used in the DC converter station, such as the zero-flux CT with an input of 3000A DC. When testing the secondary electronic module of this type of CT, it is necessary to measure 24 data at most. And every time a piece of data is measured, the wiring method must be changed. At present, this method is used in the test of such equipment in domestic converter stations. This method wastes a lot of time, and it is easy to frequently disconnect the wiring on the terminal of the tested equipment. Cause equipment damage, so we need a fast switching device suitable for zero-flux CT secondary electronic module test wiring.

Contents of the invention

In order to overcome the deficiencies of the prior art, the object of the present invention is to provide a quick switching device for the test wiring of the zero-flux CT secondary electronic module, which has a simple structure and is easy to operate, and simplifies the test wiring of the zero-flux CT secondary electronic module , not easy to damage the tested equipment.

To achieve the above object, the present invention is achieved through the following technical solutions:

A fast conversion device for the test wiring of the zero-flux CT secondary electronic module, to realize the plug connection between the zero-flux CT secondary electronic module and the test equipment, including the measuring terminal, the selection switch, the secondary electronic module terminal plug, the measurement The equipment end plug, test line, one end of the measurement terminal is connected to the secondary electronic module end plug through the test line, the other end is connected to the selection switch, and the measuring equipment end plug is connected to the selection switch inlet end through the test line.

There are several quantity-taking terminals, and each quantity-taking terminal is connected with an analog fault connection terminal.

The method of using the fast conversion device for the test wiring of the zero-flux CT secondary electronic module, the plug at the secondary electronic module is connected to the terminal of the tested zero-flux CT secondary electronic module, the plug at the measuring equipment end is connected to the measuring equipment The terminals are connected, and the signals of each terminal of the terminal of the tested zero-flux CT secondary electronic module are connected to the measuring terminal, and the selection switch can be switched to change different wiring methods to measure the required data; The simulated fault terminal on the terminal simulates abnormal working conditions and measures abnormal data.

Compared with prior art, the beneficial effect of the present invention is:

It overcomes the defects of complex wiring, time-consuming and easily damaged equipment in the previous zero-flux CT secondary electronic module test. It realizes the plug connection between the zero-flux CT secondary electronic module and the test equipment, avoids repeated disconnection of the terminal of the tested equipment, and does not need to cut off the power or change the wiring when measuring different parameters, just pull the button on the device Select the switch to measure the required parameters.

Description of drawings

Fig. 1 is a structural schematic diagram of the present invention.

In the figure: 1-measurement terminal 2-selection switch 3-secondary electronic module terminal plug 4-measurement equipment terminal plug 5-analog fault terminal.

Detailed ways

The present invention will be described in detail below in conjunction with the accompanying drawings, but it should be pointed out that the implementation of the present invention is not limited to the following embodiments.

As shown in Figure 1, the fast switching device used for the test wiring of the zero-flux CT secondary electronic module realizes the plug connection between the zero-flux CT secondary electronic module and the test equipment, including the measuring terminal 1, the selection switch 2, the secondary Electronic module end plug 3, measuring equipment end plug 4, analog fault connection terminal 5, one end of measurement terminal 1 is connected to the secondary electronic module through the secondary electronic module end plug 3, the other end is connected to the selection switch 2, and the measuring equipment end plug 4. Connect to the measuring instrument through the plug 4 of the measuring equipment end; there are several measuring terminals 1, and each measuring terminal 1 is connected with an analog fault terminal 5.

The plug of the secondary electronic module terminal plug 3 is made in strict accordance with the size of the terminal of the zero-flux CT secondary electronic module, which can achieve good docking. After docking, the signals of each terminal of the terminal of the zero-flux CT secondary electronic module pass through the The module end plug 3 is connected to the measurement terminal 1, and the selection switch 2 realizes the connection with different measurement terminals 1 so that the measuring equipment can measure the required data. By connecting the analog fault connection terminal 5 on the measurement terminal 1, various abnormal working conditions such as power failure, grounding, and electronic device failure can be simulated, abnormal data can be measured, and whether the device outputs signals correctly can be checked.

The use method of the fast conversion device for the test wiring of the zero magnetic flux CT secondary electronic module, the secondary electronic module terminal plug 3 is connected to the tested zero magnetic flux CT secondary electronic module terminal, and the measuring equipment terminal plug 4 is connected to the measuring equipment terminal. The terminals of the equipment are connected, and the signals of each terminal of the terminal of the zero-flux CT secondary electronic module to be tested are connected to the measurement terminal 1, and the selection switch 2 can be switched to change different wiring methods and measure the required data.

The invention overcomes the defects of complex wiring, long time consumption and easily damaged equipment in the previous zero magnetic flux CT secondary electronic module test. It realizes the plug connection between the zero-flux CT secondary electronic module and the test equipment, avoids repeated disconnection of the terminal of the tested equipment, and does not need to cut off the power or change the wiring when measuring different parameters, just pull the button on the device Select the switch to measure the required parameters.

Claims (1)

1. being used for the quick switching device of Zero flux CT secondary electron module test wiring, which is characterized in that realize Zero flux CT Secondary electron module is docked with progress plug between testing equipment, including taken amount terminal, selection switch, secondary electron module end are inserted Head, measuring device end plug, test wire, taken amount terminal one end is connect by test wire with secondary electron module end plug, another End and selection switch connection, measuring device end plug are connect by test wire with selection switch end of incoming cables；

The taken amount terminal is several, is respectively connected with simulated failure connecting terminal on each taken amount terminal；

The application method of the quick switching device for the module test wiring of Zero flux CT secondary electron, secondary electron mould Block end plug is docked with the Zero flux CT secondary electron module connecting terminal tested, measuring device end plug and measuring device Terminals connection, the signal for each terminal of Zero flux CT secondary electron module connecting terminal tested are picked up to taken amount terminal On, pull the i.e. convertible different modes of connection of selection switch, data needed for measuring；Pass through the simulated failure on connection taken amount terminal Connecting terminal simulates unusual service condition, measures abnormal data.