Comprehensive relay protection experimental device and method for power system

Abstract

The invention discloses a comprehensive relay protection experimental device and method for a power system. The device has the advantages of high integration level, small occupied area and cost saving; and the device comprises a PC, a switch, an industrial personal computer and a plurality of experimental platforms, each experimental platform comprises a time relay characteristic experimental device, a current relay characteristic experimental device, a voltage relay characteristic experimental device and a power relay characteristic experimental device, the time relay characteristic experimental device, the current relay characteristic experimental device, the voltage relay characteristic experimental device and the power relay characteristic experimental device respectively upload test data to the industrial personal computer through RS485 bus, and the industrial personal computer sends the received data to the PC through the switch.

Description

technical field [0001] The disclosure relates to the technical field of relay protection, in particular to a comprehensive experimental device and method for relay protection of a power system. Background technique [0002] The relay protection device is an automatic device that reflects the fault or abnormal working state of the electrical equipment in the power system, and acts on the circuit breaker to trip or send a signal. According to regulations, any electrical equipment is not allowed to be put into operation without a relay protection device. [0003] In order to ensure the correct operation of the relay protection device, it is necessary to test the relay protection device very seriously in all stages of development, production, installation acceptance, regular and supplementary inspection. The level of relay protection testers will directly affect the test results of relay protection devices. Therefore, it is necessary to establish relay protection experimental d...

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Problems solved by technology

[0004] During the research and development process, the inventor found that there are many kinds of relay protection devices, and the construction of a fully functional laboratory needs to occupy a large laboratory area. The relay protection devices are expensive, especially the protection devices of ultra-high voltage and ultra-high voltage equipment. It is extremely expensive, and the construction of a relay protection laboratory costs a lot, and the relay protection device is updated quickly. With the update of the actual equipment on site, the relay protection device in the laboratory also needs to be updated, and the construction pressure is huge.

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