ABB 615 Series - Technical Data

4.5.5.9 Technical data
Table 554: 27PS Technical data
Characteristic
Value
Operation accuracy Depending on the frequency of the measured
voltage: f
n
±2 Hz
±1.5% of the set value or ±0.002 × V
n
Pickup time
1)2)
Minimum Typical Maximum
V
Fault
= 0.99 × set Pickup
value
V
Fault
= 0.9 × set Pickup
value
52 ms
44 ms
55 ms
47 ms
58 ms
50 ms
Reset time Typically 40 ms
Reset ratio Depends on the set Relative hysteresis
Retardation time <35 ms
Trip time accuracy in definite time mode ±1.0% of the set value or ±20 ms
Suppression of harmonics DFT: -50 dB at f = n × f
n
, where n = 2, 3, 4, 5,…
1) Pickup value = 1.0 × V
n
, positive-sequence voltage before fault = 1.1 × V
n
, f
n
= 50 Hz, positive sequence
undervoltage with nominal frequency injected from random phase angle, results based on statistical
distribution of 1000 measurements
2) Includes the delay of the signal output contact
4.5.5.10 Technical revision history
Table 555: 47U, 27PS Technical revision history
Technical revision
Change
B -
C Internal improvement
D Internal improvement
4.5.6 Overexcitation protection 24
4.5.6.1 Identification
Function description
IEC 61850
identification
IEC 60617
identification
ANSI/IEEE C37.2
device number
Overexcitation protection OEPVPH U/f> 24
1MAC059074-MB A Section 4
Protection functions
615 series ANSI 641
Technical Manual