Technical Data; Three-Phase Remnant Undervoltage Protection 27R; Identification - ABB RELION 620 Series Technical Manual

1MAC504801-IB E
4.2.6.10
4.2.7
4.2.7.1
620 series ANSI
Technical Manual

Technical data

Table 256: 24 Technical data
Characteristic
Operation accuracy
1)2)
Pickup time
Reset time
Reset ratio
Retardation time
Operate time accuracy in definite-time mode
Operate time accuracy in inverse-time mode
1) Results based on statistical distribution of 1000 measurements
2) Includes the delay of the signal output contact

Three-phase remnant undervoltage protection 27R

Identification

This function is available in REM620 Ver.2.1 only.
Function description
Three-phase remnant undervoltage
protection
Value
Depending on the frequency of the voltage
measured: f ±2 Hz
n
±2.5% of the set value or 0.01 × Ub/f
Frequency change
Voltage change
<60 ms
Typically 0.96
<45 ms
±1.0% of the set value or ±20 ms
±5.0% of the theoretical value or ±50 ms
IEC 61850 IEC 60617
identification identification
REMPTUV 3U<
Section 4
Protection functions
Typically 200 ms (±20
ms)
Typically 100 ms (±20
ms)
ANSI/IEEE C37.2
device number
27R
313