ABB RET670 - Two Step Residual Overvoltage Protection ROV2 PTOV (59 N)

Name Values (Range) Unit Step Default Description
CrvSat1 0 - 100 % 1 0 Tuning param for programmable over voltage
TOV curve, step 1
tReset2 0.000 - 60.000 s 0.001 0.025 Reset time delay used in IEC Definite Time
curve step 2
ResetTypeCrv2 Instantaneous
Frozen timer
Linearly decreased
- - Instantaneous Selection of Time Delay reset curve for step 2
tIReset2 0.000 - 60.000 s 0.001 0.025 Time delay in Inverse-Time reset (s), step 2
ACrv2 0.005 - 200.000 - 0.001 1.000 Parameter A for customer programmable
curve for step 2
BCrv2 0.50 - 100.00 - 0.01 1.00 Parameter B for customer programmable
curve for step 2
CCrv2 0.0 - 1.0 - 0.1 0.0 Parameter C for customer programmable
curve for step 2
DCrv2 0.000 - 60.000 - 0.001 0.000 Parameter D for customer programmable
curve for step 2
PCrv2 0.000 - 3.000 - 0.001 1.000 Parameter P for customer programmable
curve for step 2
CrvSat2 0 - 100 % 1 0 Tuning param for programmable over voltage
TOV curve, step 2
Table 128: OV2PTOV (59) Non group settings (basic)
Name
Values (Range) Unit Step Default Description
ConnType PhN DFT
PhPh DFT
PhN RMS
PhPh RMS
- - PhN DFT Group selector for connection type
3.8.3 Two step residual overvoltage protection ROV2PTOV (59N)
Function description
IEC 61850
identification
IEC 60617
identification
ANSI/IEEE C37.2
device number
Two step residual overvoltage
protection
ROV2PTOV
3U0
TRV V1 EN
59N
3.8.3.1 Application
Two step residual overvoltage protection ROV2PTOV (59N) is primarily used in high
impedance grounded distribution networks, mainly as a backup for the primary ground
fault protection of the feeders and the transformer. To increase the security for different
1MRK504116-UUS C Section 3
IED application
521
Application manual