Ponovo T200A, Руководство по эксплуатации оборудования

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T200A Hardware Operation Manual
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5.3.5 Differential test
This function is designed to test differential relay with independent restraint coil and
differential coil. The items, such as the trip value, time and differential current tripping
value under different restraint current, can be tested. Test results can be recorded.
Test process:
1) Action value:
Select test item, and then go into the differential test unit;
Set the amplitude and phase of I1 and I2. For example:
I1 for differential current; I2 for restraining current;
Press the
Run button, the tester will start to output based on the settled I1, I2. Rotate the
ENTER button to change the magnitude of I1 (Id). As soon as the tester receives the
binary input of relay acting signal, press the Stop button to stop the test.
2) Action time:
Select test item, and then go into the differential test unit.
Set the amplitude and phase of I1 and I2 that can trigger the relay action.