Reset time
Instant reset time and start-up reset
<50 ms
9.2.1.6. Undervoltage (U<; 27)
Table. 9.2.1.6. - 162. Technical data for the undervoltage function.
Input signals
Voltage input magnitudes
P-P voltage fundamental frequency RMS
P-E voltage fundamental frequency RMS
Pick-up
Pick-up terms
1 voltage
2 voltages
3 voltages
Pick-up setting
20.00…120.00 %U
n
, setting step 0.01 %U
n
Inaccuracy:
- Voltage
±1.5 %U
set
or ±30 mV
Low-voltage block
Pick-up setting
0.00…80.00 %U
n
, setting step 0.01 %U
n
- Voltage
±1.5 %U
set
or ±30 mV
Instant operation time
Start time and instant operation time (trip):
- U
m
/U
set
ratio 1.05
→
<65 ms
Reset
Reset ratio
103 % of the pick-up voltage setting
Instant reset time and start-up reset
<50 ms
Note!
The low-voltage block is not in use when it is set to 0 %U
N
.
The protection stage's TRIP signal is active if the low-voltage block is disabled and the IED is
without a voltage injection.
9.2.1.7. Neutral overvoltage (U0>; 59N)
Table. 9.2.1.7. - 163. Technical data for the neutral overvoltage function.
Input signals
Voltage input magnitudes
P-E voltage fundamental frequency RMS
U0 voltage fundamental frequency RMS
Pick-up
Used voltage magnitude
Measured zero sequence voltage U0 (U3 or U4 voltage channel)
Calculated zero sequence voltage U0 (U0Calc)
Pick-up voltage setting
1.00…50.00 %U0
n
, setting step 0.01 %U0
n
Inaccuracy:
- Voltage U0
- Voltage U0Calc
±1.5 %U0
set
or ±30 mV
±150 mV
Instant operation time
Start time and instant operation time (trip):
- U0
m
/U0
set
ratio 1.05
→
<50 ms
AQ-E215
Instruction manual
Version: 2.01
© Arcteq Relays Ltd
198