Instruction manual
–
AQ G3x7 Generator protection IED
202 (211
)
Generator/Motor differential protection IdG> (87G)
Operating characteristic
Biased 2 breakpoints and unrestrained decision
Reset ratio
0.95
Characteristic inaccuracy
<2%
Operate time
Typically 30ms (restrained)
Typically 20ms (unrestrained)
Reset time
Typically 25ms
Current unbalance protection function (60)
Pick-up starting inaccuracy at In
< 2 %
Reset ratio
0,95
Operate time
70 ms
Thermal overload protection function T>, (49)
Operation time inaccuracy at
I>1.2*Itrip
3 % or + 20ms
Breaker failure protection function CBFP, (50BF)
Current inaccuracy
<2 %
Re-trip time
Approx. 15ms
Operation time inaccuracy
+ 5ms
Current reset time
20ms
Inrush current detection function INR2, (68)
Current inaccuracy
<2 %
Reset ratio
0,95
Operating time
Approx. 20 ms