ABB 615 Series - Monitored Data

4.5.9.8 Monitored data
Table 584: 27R Monitored data
Name
Type Values (Range) Unit Description
U_AMPL_A FLOAT32 0.00...5.00 xUn Remanent voltage of phase A
U_AMPL_B FLOAT32 0.00...5.00 xUn Remanent voltage of phase B
U_AMPL_C FLOAT32 0.00...5.00 xUn Remanent voltage of phase C
U_AMPL_AB FLOAT32 0.00...5.00 xUn Remanent voltage of phase to
phase AB
U_AMPL_BC FLOAT32 0.00...5.00 xUn Remanent voltage of phase to
phase BC
U_AMPL_CA FLOAT32 0.00...5.00 xUn Remanent voltage of phase to
phase CA
27R Enum 1=Enabled
2=blocked
3=test
4=test/blocked
5=Disabled
Status
4.5.9.9 Technical data
Table 585: 27R Technical data
Characteristic
Value
Operation accuracy ±4% of setting or ±0.01 × V
n
(70 Hz > = f > 20 Hz)
±10% of setting (20 Hz > = f ≥ 10 Hz)
Pickup time
1)
Minimum Typical Maximum
30 ms 75 ms 140 ms
Reset time <180 ms
Reset ratio Depends on the relative hysteresis setting
Retardation time <45 ms
Trip time accuracy
2)
±1.0% of the set value or ±20 ms
Suppression of harmonics Operates only in RMS mode
1) Includes the delay of the signal output contact
2) Trip time delays do not account for variation due to pickup delay
1MAC059074-MB A Section 4
Protection functions
615 series ANSI 677
Technical Manual