ABB Relion 650 Series Product Manual page 59

Transformer protection RET650
Version 2.2
Table 38. Pole discordance protection CCPDSC
Function
Operate value, current asymmetry level
Reset ratio
Operate current
Operate current, current release level
Independent time delay between trip
condition and trip signal
Table 39. Directional underpower protection GUPPDUP
Function
Power level
for Step 1 and Step 2
Characteristic angle
for Step 1 and Step 2
Timers
Independent time delay to operate for Step 1
and Step 2 at 2 x S to 0.5 x S
r
Table 40. Directional over/underpower protection GOPPDOP, GUPPDUP
Function
Power level
Characteristic angle
Timers
Hitachi Power Grids
Range or value
(0-100) %
>95%
(0–100)% of IBase
(0.000-60.000) s
Range or value
(0.0–500.0)% of SBase
(-180.0–180.0) degrees
(0.00–6000.00) s
(0.01-6000.00) s
and k=0.000
r
Range or value
(0.0–500.0)% of SBase
(1.0-2.0)% of SBase
(2.0-10)% of SBase
(-180.0–180.0) degrees
(0.010 - 6000.000) s
© 2017 - 2021 Hitachi Power Grids. All rights reserved
M13279-1 v10
Accuracy
±1.0% of I
-
±1.0% of I
±0.5% ± 25 ms
±0.2% or ± 30 ms whichever is greater
SEMOD175152-2 v11
Accuracy
±1.0% of S
±1.0% of S at S > S
where
=
S 1.732
r
±2.0 degrees
±0.5% ± 10 ms
±0.2% or ±40 ms whichever is greater
Accuracy
±1.0% of S at S < S
r
±1.0% of S at S > S
< ±50% of set value
< ±20% of set value
2 degrees
±0.5% ±25 ms
1MRK 504 172-BEN G
r
r
at S ≤ S
r r
r
× ×
U I
r r
r
r
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