Substation secondary loop break-make measuring instrument

Abstract

The invention discloses a substation secondary loop break-make measuring instrument. The substation secondary loop break-make measuring instrument is used for measuring a live secondary loop of a substation; the substation secondary loop break-make measuring instrument comprises a central processing module, a voltage measuring module, a break-make measuring module and a program module, wherein thevoltage measuring module is used for performing voltage measurement on the secondary loop and electrically connected with the central processing module; and the break-make measuring module is used for performing break-make measurement on the secondary loop during no-voltage of the secondary loop, and the break-make measuring module is electrically connected with the central processing module. Thesubstation secondary loop break-make measuring instrument has the beneficial effects that 1, the security production level is improved, and when break-make test of the secondary loop is carried out in a running substation, serious consequences that electric components incorrectly operate, a power source is grounded and the like due to the fact that the live loop is accidentally touched are solved; and 2, the working efficiency is improved, through an integrated design scheme of voltage measurement and break-make test, the operation is easy, and the labor operation level of workers is improved.

Description

technical field [0001] The invention relates to the field of transformer substation monitoring, and more particularly relates to a transformer substation secondary circuit on-off measuring instrument. Background technique [0002] At present, the secondary circuit in the conventional substation of the power system is composed of a large number of cables and wires of different types. With the rapid development of the power grid, users have higher and higher requirements for electricity consumption. Therefore, the expansion and technical transformation projects involved in the operation of the substation are gradually increasing, and the secondary circuit cable core check of the substation and the node status confirmation of the protection device are issued. Secondary The on-off measurement of the secondary circuit is a crucial and indispensable link. Among them, the multimeter is the most commonly used safety tool for the on-off measurement of the secondary circuit in the cur...

AI Technical Summary

Problems solved by technology

[0006] 1. The production risk is extremely high, there are potential safety hazards in the working mode, and the skill level of the staff is high, and there is no corresponding alarm function, and the risk of the secondary circuit on-off test is extremely high;

[0007] 2. The work efficiency is reduced. The structure of the on-off gear of the conventional multimeter is complicated, and it is necessary to switch between the voltage gear and the on-off gear correctly. It is very inconvenient to use, low in universality, and low in work efficiency.

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