ABB 1MRK002826-AG - Page 118

Table 145. Event counter with limit supervision L4UFCNT , continued
Function Range or value Accuracy
Max. count up speed 30 pulses/s (50% duty cycle) -
GUID-F5E124E3-0B85-41AC-9830-A2362FD289F2 v1
Table 146. Running hour-meter TEILGAPC
Function Range or value Accuracy
Time limit for alarm supervision, tAlarm (0 - 99999.9) hours ±0.1% of set value
Time limit for warning supervision,
tWarning
(0 - 99999.9) hours ±0.1% of set value
Time limit for overflow supervision Fixed to 99999.9 hours ±0.1%
GUID-3763D0D6-AD44-4C9B-91E4-050C0B63C7EA v1
Table 147. Through fault monitoring PTRSTHR
Function Range or value Accuracy
Operate current (50-1000)% of IBase ±1.0% of I
r
at I ≤ I
r
±1.0% of I at I > I
r
Reset ratio > 95% at (50-1000)% of IBase –
GUID-09EC65AC-C60B-4256-A601-FE2CC90D26EC v2
Table 148. Current harmonic monitoring CHMMHAI (50/60 Hz)
Function Range or value Accuracy
Fundamental Harmonic
Frequency (0.95 - 1.05) X fr 2nd order to 5th order (0.1 - 0.5) X Ir ± 2 mHz
True RMS (0.2 to 2) X Ir None ±0.3% of Ir at I ≤ Ir
±0.3% of I at I > Ir
(0.2 to 2) X Ir 2nd order to 5th order (0.1 - 0.5) X Ir ±1.0% of Ir at I ≤ Ir
±1.0% of I at I > Ir
Fundamental (0.2 to 2) X Ir None ±0.3% of Ir at I ≤ Ir
±0.3% of I at I > Ir
(0.2 to 2) X Ir 2nd order to 5th order (0.1 - 0.5) X Ir ±0.3% of Ir at I ≤ Ir
±0.3% of I at I > Ir
Crest Factor (0.2 to 2) X Ir None ± 2%
Harmonic
Amplitude
(0.2 to 2) X Ir 2nd order to 5th order (0.1 - 0.5) X Ir ±2.0% of Ir at I ≤ Ir
±5.0% of I
H
at I > Ir
Total Demand
Distortion (TDD)
(0.2 to 2) X Ir 2nd order to 5th order (0.1 - 0.5) X Ir ±5.0% at I ≤ Ir
±5.0% of ITDD at I > Ir
Total Harmonic
Distortion (ITHD)
(0.2 to 2) X Ir 2nd order to 5th order (0.1 - 0.5) X Ir ± 5%
Generator protection REG670
1MRK 502 074-BEN M
Version 2.2
118 Hitachi Power Grids
© Copyright 2017 Hitachi Power Grids. All rights reserved