Hitachi Relion REL670 Product Manual page 119

Line distance protection REL670
Version 2.2
Table 91. Current reversal and weak-end infeed logic for phase segregated communication ZPCWPSCH
Function
Detection level phase to neutral
voltage
Detection level phase to phase
voltage
Reset ratio
Operate time for current reversal
Delay time for current reversal
Coordination time for weak-end
infeed logic
Table 92. Scheme communication logic for residual overcurrent protection ECPSCH
Function
Scheme type
Communication scheme
coordination time
Table 93. Local acceleration logic ZCLCPSCH
Function
Operate current, LoadCurr
Operate current, MinCurr
Delay time on pick-up for current release
Delay time on drop-off for current release
Delay time on pick-up for MinCurr value
Table 94. Current reversal and weak-end infeed logic for residual overcurrent protection ECRWPSCH
Function
Operate mode of WEI logic
Operate voltage 3U0 for WEI trip
Operate time for current reversal
logic
Delay time for current reversal
Coordination time for weak-end
infeed logic
Hitachi Energy
SEMOD166938-2 v7
Range or value
(10-90)% of UBase
(10-90)% of UBase
<105% at (20-90)% of UBase
(0.000-60.000) s
(0.000-60.000) s
(0.000-60.000) s
M16049-1 v10
Range or value
Permissive Underreaching
Permissive Overreaching
Blocking
(0.000-60.000) s
GUID-CC9A02C2-AAE8-4B8C-A091-D4ED584A2EA7 v1
Range or value
(1–100)% of IBase
(1–100)% of IBase
(0.000–60.000) s
(0.000–60.000) s
(0.000–60.000) s
M16051-2 v11
Range or value
Off
Echo
Echo & Trip
(5-70)% of UBase
(0.000-60.000) s
(0.000-60.000) s
(0.000–60.000) s
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Accuracy
±0.5% of U
r
±0.5% of U
r
-
±0.2% or ±15 ms whichever is greater
±0.2% or ±15 ms whichever is greater
±0.2% or ±15 ms whichever is greater
Accuracy
-
±0.2% or ±20 ms whichever is greater
Accuracy
±1.0% of I
r
±1.0% of I
r
±0.2% or ±35 ms whichever is greater
±0.2% or ±35 ms whichever is greater
±0.2% or ±35 ms whichever is greater
Accuracy
-
±0.5% of U
r
±0.2% or ±30 ms whichever is greater
±0.2% or ±30 ms whichever is greater
±0.2% or ±30 ms whichever is greater
1MRK 506 372-BEN Q
119