10KV incoming line control circuit

Abstract

The invention relates to a 10KV incoming line control circuit which comprises a 10KV main circuit. A 10KV power supply is connected with one end of an isolating switch; the other end of the isolatingswitch is connected to the line inlet end of the circuit breaker, and the isolating switch is grounded; a metering current transformer, a measuring current transformer, a first protection current transformer and a second protection current transformer are arranged at the line outlet end of the circuit breaker; the 10KV main circuit is metered, measured and protected; the line outlet end of the circuit breaker is connected to the transformer, a capacitance compensator and a lightning protection relay; the 10KV control circuit is used for controlling connection and disconnection of the circuit breaker, and has the main function that a backup comprehensive protector 2n is designed to be matched with the metering current transformer, the measuring current transformer, the first protection current transformer and the second protection current transformer which are designed in a main circuit for circuit design so that protection is completed; and electric quantity quality detection and electric energy counting can be realized.

Description

technical field [0001] The embodiment of the present invention relates to a control circuit, in particular to a 10KV incoming line control circuit. Background technique [0002] In the existing 10KV incoming line control circuit, only comprehensive protectors are generally used for protection, and backup comprehensive protectors are generally not installed. However, in the application process, the line often fails due to the lack of backup comprehensive protectors, resulting in For large-scale power outages, it is particularly critical to set up a backup comprehensive protector. For this reason, it is necessary to set up metering current transformers, measuring current transformers, first protection current transformers and second protection current transformers in the main circuit for circuit protection. design. Contents of the invention [0003] The purpose of the embodiments of the present invention is to provide a 10KV incoming line control circuit, its main function ...

AI Technical Summary

Problems solved by technology

[0002] In the existing 10KV incoming line control circuit, only comprehensive protectors are generally used for protection, and backup comprehensive protectors are generally not installed. However, in the application process, the line often fails due to the lack of backup comprehensive protectors, resulting in For large-scale power outages, it is particularly critical to set up a backup comprehensive protector. For this reason, it is necessary to set up metering current transformers, measuring current transformers, first protection current transformers and second protection current transformers in the main circuit for circuit protection. design

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