What should be included in the on-site inspection of microcomputer-based relay protection devices?

2020-05-11View Original

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What should be included in the on-site inspection of microcomputer-based relay protection devices?

Reply #22020-05-11

Answer: The on-site inspection of microcomputer-based relay protection devices should include the following tasks: (1) Measuring insulation. (2) Test the inverter power supply (by switching the DC current and voltage, and during slow increases and decreases, the inverter power supply and the microcomputer-based relay protection device should function properly). (3) Check whether the curing procedure is correct. (4) Check the accuracy and balance of the data acquisition system. (5) Test the digital input and output circuits. (6) Inspection calibration form. (8) Test with a single current and operating voltage.

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