Instant operation time
>3.00xISET
<30 ms (Harmonic blocking active)
Instant operation time
>3.00xISET
~15ms (No harmonic blocking)
Reset
Reset ratio: Differential
current
97 % typically of differential current setting
Reset time
<45 ms
Note!
Harmonic current is set and calculated according to the highest amplitude of side 1, 2 or 3
currents (Ih%/I
SIDE1/2/3
). Harmonic current is calculated individually for each phase.
9.2.1.20. Arc protection (50ARC/50NARC) IARC> I0ARC> (option)
Table. 9.2.1.20. - 281. Arc protection (50ARC/50NARC) technical data
Input signals
Input magnitudes
Input arc point sensors
Sample based phase current measurement
Sample based residual current measurement
S1, S2, S3, S4 (pressure and light or light only)
System frequency operating range
6.00…75.00 Hz
Pick-up
Pick-up current setting (phase current)
Pick-up current setting (residual current)
Pick-up light intensity
0.50…40.00 x In, setting step 0.01 x In
0.10…40.00 x In, setting step 0.01 x In
8000, 25000 or 50000 Lux (sensor selectable in order code)
Starting inaccuracy ArcI> & ArcI0>
±3% of set pick-up value > 0.5 x In setting. 5 mA < 0.5 x In setting
Point sensor detection radius
180 degrees
Operation time
Light only
-Semiconductor outputs HSO1 and HSO2
-Regular relay outputs
Typically 7 ms (3…12 ms)
Typically 10 ms (6.5…15 ms)
Light + current criteria (zone1…4)
-Semiconductor outputs HSO1 and HSO2
-Regular relay outputs
Typically 10 ms (6.5…14 ms)
Typically 14 ms (10…18 ms)
Arc BI only
-Semiconductor outputs HSO1 and HSO2
-Regular relay outputs
Typically 7 ms (2…12 ms)
Typically 10 ms (6.5…15 ms)
Reset
Reset ratio for current
97 %
Reset time
<35 ms
Note!
Arc sensor maximum cable length is 200 meters.
9.2.2. Control functions
9.2.2.1. Automatic voltage regulator (90) (AVR)
Table. 9.2.2.1. - 282. Automatic voltage regulator (AVR) technical data
Input signals
AQ-T257
Instruction manual
Version: 2.00
© Arcteq Relays Ltd
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