ABB REF630 - Local Acceleration Logic (DSTPLAL); Local Acceleration Logic (DSTPLAL) Main Settings

Table 72. Local acceleration logic (DSTPLAL)
Characteristic Value
Operation accuracy At the frequency f = f
n
±1.5% of the set value or ±0.002 × I
n
Operate time accuracy ±1.0% of the set value or ±20 ms
Suppression of harmonics DFT: -50 dB at f = n x f
n
, where n = 2, 3, 4, 5,
…
Table 73. Local acceleration logic (DSTPLAL) main settings
Parameter
Function Value (Range) Step
Load current value DSTPLAL 0.01...1.00 pu 0.01
Minimum current DSTPLAL 0.01...1.00 pu 0.01
Minimum current
time
DSTPLAL 0.000...60.000 s 0.001
Load release on time DSTPLAL 0.000...60.000 s 0.001
Load release off Tm DSTPLAL 0.000...60.000 s 0.001
Loss of load Op DSTPLAL Disabled
Enabled
-
Zone extension DSTPLAL Disabled
Enabled
-
Table 74. Communication logic for residual overcurrent (RESCPSCH)
Characteristic
Value
Operate time accuracy ±1.0% of the set value or ±20 ms
Table 75. Communication logic for residual overcurrent (RESCPSCH) main settings
Parameter
Function Value (Range) Step
Scheme type RESCPSCH Off
Intertrip
Permissive UR
Permissive OR
Blocking
-
Coordination time RESCPSCH 0.000...60.000 s 0.001
Carrier Min Dur RESCPSCH 0.000...60.000 s 0.001
Feeder Protection and Control 1MRS756380 A
REF630
Product version: 1.0 Issued: 15.09.2009
52 ABB