HVTest HT-802, Руководство пользователя

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adjusted. For details, please see the connecting mode. The phase difference of IA and IB is 0
degrees or 180 degrees. When ‘Six Phases Differential’ is selected, IA, IB, IC and IN should
be connected with current input ends A, B, C and N on the high voltage side and connecting
Ia, Ib, Ic and In with current input ends a, b, c and N on the low voltage side.
(2) Test parameters
1
Threshold value of differential current
：
Input value according to the setting value of
protection, generally 1A-2A.
2
Quick break value of differential current
：
Input value according to the setting value of
protection, generally 8A-10A.
3
Proportional control factor
：
Input value according to the setting value of protection,
generally 0.2-0.9.
4
Harmonic restraint coefficients
：
Input value according to the setting value of
protection, generally 0.1-0.9.
5
Knee points rated value
：
Input value according to the setting value of protection,
generally 2A-6A.
6
Slope
：
For the Proportional control factor, input value according to the setting value of
protection.
7
The longest output time
：
For the time of current output, generally 0.5 seconds -1
second.
8
The interval time of output
：
For the time of on current output, generally 0.5 seconds -1
second. Because the microcomputer protection calibrator uses break variable starting