Angle measurement inaccuracy
±0.2 degrees (15…300 V)
±1.5 degrees (1…15 V)
Voltage measurement bandwidth (freq.)
7…75 Hz fundamental, up to the 31
st
harmonic voltage
Terminal block connection
Terminal block
Phoenix Contact PC 5/8-STCL1-7.62
Solid or stranded wire
Maximum wire diameter
6 mm
2
Input impedance
24.5…24.6 M
Ω
Burden (50/60 Hz)
<0.02 VA
Thermal withstand
630 V
RMS
(continuous)
NO
NOTE!
TE!
Voltage measurement accuracy has been verified with 50/60 Hz.
The amplitude difference is 0.2 % and the angle difference is 0.5 degrees higher at 16.67 Hz and other
frequencies.
9.1.1.3 Power and energy measurement
Table. 9.1.1.3 - 377. Power and energy measurement accuracy
Power measurement P, Q, S
Frequency range 6…75 Hz
Inaccuracy
0.3 % <1.2 × I
N
or 3 VA secondary
1.0 % >1.2 × I
N
or 3 VA secondary
Energy measurement
Frequency range 6…75 Hz
Energy and power metering inaccuracy
0.5% down to 1A RMS (50/60Hz) as standard
0.2% down to 1A RMS (50/60Hz) option available (see the order code for details)
9.1.1.4 Frequency measurement
Table. 9.1.1.4 - 378. Frequency measurement accuracy.
Frequency measurement performance
Frequency measuring range
6…75 Hz fundamental, up to the 31
st
harmonic current or voltage
Inaccuracy
10 mHz
9.1.2 CPU & Power supply
9.1.2.1 Auxiliary voltage
Table. 9.1.2.1 - 379. Power supply model A
Rated values
Rated auxiliary voltage
85…265 V (AC/DC)
Power consumption
< 20 W
< 40 W
A
AQ
Q-M257
-M257
Instruction manual
Version: 2.07
472
© Arcteq Relays Ltd
IM00021
Summary of Contents for AQ-M257
Page 1: ...AQ M257 Motor protection IED Instruction manual...
Page 2: ......
