Low-voltage blocking
Pick-up setting
0.01…100.00 %U
N
, setting step 0.01 %U
N
Inaccuracy:
- Voltage
±1.5 %U
SET
or ±30 mV
Instant operation time
Alarm and trip operation time:
- (Im/Iset ratio > ±30% overreach or 1.00 °)
<40 ms (typically 30 ms) 50/60 Hz
<50 ms (typically 40 ms) 16.67 Hz
Reset
Trip pulse
~5-10ms
9.2.2.4 Synchrocheck (ΔV/Δa/Δf; 25)
Table. 9.2.2.4 - 191. Technical data for the synchrocheck function.
Input signals
Voltage inputs
U1, U2, U3 or U4 voltage channel
Voltage input magnitudes
RMS line-to-line or line-to-neutral voltages
U3 or U4 voltage channel RMS
Pick-up
U diff < setting
2.00…50.00 %U
N
, setting step 0.01 %U
N
Angle diff < setting
3.0…90.0 deg, setting step 0.10 deg
Freq diff < setting
0.05…0.50 Hz, setting step 0.01 Hz
Inaccuracy:
- Voltage
- Frequency
- Angle
±3.0 %U
SET
or ±0.3 %U
N
±25 mHz (U> 30 V secondary)
±1.5° (U> 30 V secondary)
Reset
Reset ratio:
- Voltage
- Frequency
- Angle
99 % of the pick-up voltage setting
20 mHz
±2.0°
Activation time
Activation (to LD/DL/DD)
Activation (to Live Live)
<35 ms
<60 ms
Reset
<40 ms
Bypass modes
Voltage check mode (excluding LL)
LL+LD, LL+DL, LL+DD, LL+LD+DL, LL+LD+DD, LL+DL+DD, bypass
U live > limit
U dead < limit
0.10…100.00 %U
N
, setting step 0.01 %U
N
0.00…100.00 %U
N
, setting step 0.01 %U
N
No
Notte!
e!
• Voltage is scaled to the primary amplitude; therefore, the different sized PT secondaries are
possible.
• The minimum voltage for direction and frequency solving is 20.0 %U
N
.
• U< dead limit is not in use when set to 0 %U
N
.
• When SYN3 is used, SYN1 and SYN2 must have the same reference voltage.
• In 3LN mode the synchronization to the L-N and L-L voltages is possible. In 3LL/2LL modes
the synchronization is only supported to the L-L voltage.
A
AQ
Q-V211
-V211
Instruction manual
Version: 2.04
289