ABB REG630 - Page 44

Table 84. Overexcitation protection (OEPVPH)
Characteristic Value
Operation accuracy At the frequency f = f
n
±2.5% of the set value or 0.01 × Ub/f
Start time
1)2)
Frequency change Typically 200 ms (±20 ms)
Voltage change Typically 100 ms (±20 ms)
Reset time <60 ms
Reset ratio Typically 0.96
Retardation time <45 ms
Operate time accuracy in definite-time mode ±1.0% of the set value or ±20 ms
Operate time accuracy in inverse-time mode ±5.0% of the theoretical value or ±50 ms
1) Results based on statistical distribution of 1000 measurements
2) Includes the delay of the signal output contact
Table 85. Overexcitation protection (OEPVPH) main settings
Parameter
Function Value (Range) Step
Leakage React OEPVPH 0.0...50.0% Zb 0.1
Start value OEPVPH 100...200% UB/f 1
Time multiplier OEPVPH 0.1...100.0 0.1
Operating curve type OEPVPH ANSI Def. Time
IEC Def. Time
OvExt IDMT Crv1
OvExt IDMT Crv2
OvExt IDMT Crv3
OvExt IDMT Crv4
-
Operate delay time OEPVPH 0.10...200.00 s 0.01
Table 86. Voltage vector shift protection (VVSPPAM)
Characteristic
Value
Operation accuracy At the frequency f = f
n
±0.5% of the set value or ±0.01°
Operate time Typically 60 ms
Table 87. Voltage vector shift protection (VVSPPAM) main settings
Parameter
Function Value (Range) Step
Start value VVSPPAM 2...30° 1
Phase supervision VVSPPAM All
Pos sequence
-
Over Volt Blk value VVSPPAM 0.40...1.50 pu 0.01
Under Volt Blk value VVSPPAM 0.15...1.00 pu 0.01
Voltage selection VVSPPAM phase-to-earth
phase-to-phase
-
Generator Protection and Control
1MRS757583 C
REG630
Product version: 1.3
44 ABB