Method for testing stage difference coordination and ampere-second characteristics of direct-current system device of power plant
A technology of differential coordination and DC system, applied in the field of testing, can solve the problems of power failure of feeder line, skipping trip, etc., and achieve the effects of good equivalence, elimination of misoperation, and simple wiring.
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[0047] Embodiment: A test method for differential coordination and ampere-second characteristics of a DC system device in a power plant, the specific steps are as follows:
[0048] A. Test wiring:
[0049] The test power supply is initialized and tested, and the DC level difference is turned on to cooperate with the test system test equipment, and the test selection main interface is displayed, and the system self-test test;
[0050] B. Parameter setting test:
[0051] ①After selecting "Test parameter setting" on the main interface, press OK to enter the setting interface, press Left ← Right→ to switch the cursor movement position, and press Up ↑, Down ↓ to change the value of the cursor position data;
[0052] ②The cursor position and the set value are all automatically cycled, and there are default standard values in use; if all parameters are set, press the cancel key to exit the setting and return to the starting state of the main interface;
[0053] ③Test equipment re...
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