Hitachi Relion 670 Series Product Manual page 108

Line differential protection RED670
Version 2.2
Table 70. Directional overpower protection GOPPDOP
Function
Power level
for Step 1 and Step 2
Characteristic angle
for Step 1 and Step 2
Operate time, start at 0.5 x S
k=0.000
Reset time, start at 2 x S to 0.5 x S
r
k=0.000
Independent time delay to operate for Step 1
and Step 2 at 0.5 x S to 2 x S
r
Table 71. Broken conductor check BRCPTOC
Function
Minimum phase current for operation
Unbalance current operation
Independent operate time delay
Independent reset time delay
Start time at current change from I
Reset time at current change from 0 to I
108
Range or value
(0.0–500.0)% of SBase
(-180.0–180.0) degrees
to 2 x S and Min. =10 ms
r r
Max. = 25 ms
and Min. = 35 ms
r
Max. = 55 ms
(0.01-6000.00) s
and k=0.000
r
Range or value
(5–100)% of IBase
(50–90)% of maximum current
(0.050-60.000) s
(0.010-60.000) s
to 0 Min. = 80 ms
r
Max. = 95 ms
Min. = 5 ms
r
Max. = 20 ms
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SEMOD175159-2 v9
Accuracy
±1.0% of S
±1.0% of S at S > S
±2.0 degrees
±0.2% or ±40 ms whichever is greater
SEMOD175200-2 v9
Accuracy
±1.0% of I
±1.0% of I
±0.2% or ±45 ms whichever is greater
±0.2% or ±30 ms whichever is greater
-
-
1MRK 505 379-BEN R
at S ≤ S
r r
r
r
r
Hitachi Energy