ABB RELION Series - Technical Revision History

Characteristic Value
Retardation time <35 ms
Operate 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) Start value = 1.0 × U
n
, positive-sequence voltage before fault = 1.1 × U
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
4.4.5.10 Technical revision history
Table 456: PSPTUV Technical revision history
Technical revision Change
B -
C Internal improvement
D Internal improvement
4.5 Frequency protection
4.5.1 Frequency protection FRPFRQ
4.5.1.1 Identification
Function description
IEC 61850
identification
IEC 60617
identification
ANSI/IEEE C37.2
device number
Frequency protection FRPFRQ f>/f<,df/dt 81
4.5.1.2 Function block
GUID-744529D8-E976-4AFD-AA77-85D6ED2C3B70 V1 EN
Figure 222: Function block
4.5.1.3 Functionality
The frequency protection function FRPFRQ is used to protect network components
against abnormal frequency conditions.
1MRS758755 A Section 4
Protection functions
REC615 and RER615 435
Technical Manual