HVTest HT-802, Руководство пользователя

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Section 20 System Vibration
This program can simulate the oscillation process of single-machine infinite bus system,
and can put fault into oscillation to test whether the protection device can correctly operate.
User input “oscillation period” usually 0.2s, “oscillation duration” usually 3 seconds, the output
voltage and current in the first row: UA, UB, UC; IA, IB and IC.
1. Oscillation, no failure
The testing process is: normal state
→
oscillation state
→
Back
2. Oscillation, with failure
The testing process is: normal state
→
oscillation states
→
failure state
→
Back.
The test results can test action time of oscillation state, and the action time of the
protection in failure state.
3. Oscillation model
M N
EM EN
ZM ZL ZN
Protection installation site