ABB REL 501-C1 2.5, Technical Reference Manual

Page: 141 / 238

129
Time delayed overvoltage protection (TOV) Chapter 6
Voltage
Table 136: Output signals for the time delayed overvoltage protection TOV (TOV--) func-
tion
2.6 Setting parameters
Path in local HMI: Settings/Functions/Groupn/TimeDelayOV
Table 137: Setting parameters for time delayed overvoltage TOV (TOV--) function
2.7 Technical data
Table 138: TOV - Time delayed overvoltage protection
Signal Description
TRIP General trip output from TOV function block
TRPE Trip by phase overvoltage function
TRN Trip by residual overvoltage function
STPE Start phase overvoltage function
STL1 Start phase overvoltage phase L1
STL2 Start phase overvoltage phase L2
STL3 Start phase overvoltage phase L3
STN Start by residual overvoltage function
Parameter Range Default Unit Description
Operation Off, On Off - Operating mode for TOV function
UPE> 50-200
Step: 1 120 % of U1b Operate value for the phase overvoltage
function
t 0.000-60.000
Step: 0.001 0.000 s Time delay of the phase overvoltage
function
3U0> 5-100
Step: 1 30 % of U1b Operate value for the neutral overvoltage
function
t 0.000-60.000
Step: 0.001 0.000 s Time delay of the neutral overvoltage
function
Function Setting range Accuracy
Operate voltage U> Phase measuring ele-
ments (50-170)% of U1b in steps of
1%
±
2.5 % of U
r
at U
≤
U
r
±
2.5 % of U at U > U
r
Time delay Phase measuring ele-
ments (0.000-60.000) s in steps of
1ms
±
0.5 %
±
10 ms
Operate voltage U> Residual measuring
elements (5-100)% of U1b in steps of 1%
±
2.5 % of U
r
at U
≤
U
r
±
2.5 % of U at U > U
r
Time delay Residual measuring
elements (0.000-60.000) s in steps of
1ms
±
0.5 %
±
10 ms