ABB RELION REF615R, Technical Manual

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4.2.2.9 Monitored data
Table 185: 27-1/2 Monitored data
Name Type Values (Range) Unit Description
PICKUP_DUR FLOAT32 0.00...100.00 % Ratio of pickup time / trip time
27-1/2 Enum 1=Enabled
2=blocked
3=test
4=test/blocked
5=Disabled
Status
4.2.2.10 Technical data
Table 186: 27 Technical data
Characteristic Value
Operation accuracy Depending on the frequency of the voltage
measured: f
n
±2 Hz
±1.5% of the set value or ±0.002 × V
n
Pickup time
1)2)
Minimum Typical Maximum
V
Fault
= 0.9 × set
Pickup
value
62 ms 66 ms 69 ms
Reset time <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
Trip time accuracy in inverse time mode
±5.0% of the theoretical value or ±20 ms
3)
Suppression of harmonics DFT: -50 dB at f = n × f
n
, where n = 2, 3, 4, 5,…
1) Pickup value = 1.0 × V
n
, Voltage before fault = 1.1 × V
n
, f
n
= 60 Hz, undervoltage in one phase-to-phase 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
3) Minimum
Pickup value = 0.50, Pickup value multiples in range of 0.90...0.20
4.2.3 Residual overvoltage protection 59G/N
4.2.3.1 Identification
Function description IEC 61850
identification
IEC 60617
identification
ANSI/IEEE C37.2
device number
Residual overvoltage protection ROVPTOV Uo> 59G/N
1MRS240050-IB C
Section 4
Protection functions
REF615R 237
Technical Manual