ABB REL650 series, Product Manual

Page: 83 / 118

Table 66. Scheme communication logic for residual overcurrent protection ECPSCH
Function Range or value Accuracy
Scheme type Off
Intertrip
Permissive UR
Permissive OR
Blocking -
Communication scheme
coordination time (0.000-60.000) s ±0.5% ±25 ms
Minimum duration of a send
signal (0.000-60.000) s ±0.5% ±25 ms
Security timer for loss of carrier
guard detection (0.000-60.000) s ±0.5% ±25 ms
GUID-CC9A02C2-AAE8-4B8C-A091-D4ED584A2EA7 v1
Table 67. Local acceleration logic ZCLCPSCH
Function Range or value Accuracy
Operate current, LoadCurr (1–100)% of IBase ±1.0% of I
r
Operate current, MinCurr (1–100)% of IBase ±1.0% of I
r
Delay time on pick-up for current release (0.000–60.000) s ±0.2% or ±35 ms whichever is greater
Delay time on drop-off for current release (0.000–60.000) s ±0.2% or ±35 ms whichever is greater
Delay time on pick-up for MinCurr value (0.000–60.000) s ±0.2% or ±35 ms whichever is greater
M16051-2 v11
Table 68. Current reversal and weak-end infeed logic for residual overcurrent protection ECRWPSCH
Function Range or value Accuracy
Operate mode of WEI logic Off
Echo
Echo & Trip -
(5-70)% of UBase ±1.00.5% of U
r
Operate time for current reversal
logic (0.000-60.000) s ±0.2% or ±25 ms whichever is greater
Delay time for current reversal (0.000-60.000) s ±0.2% or ±25 ms whichever is greater
Coordination time for weak-end
infeed logic (0.000–60.000) s ±0.2% or ±25 ms whichever is greater
Line distance protection REL650 1MRK 506 384-BEN H
Version 2.2
Hitachi Power Grids 83
© 2017 - 2021 Hitachi Power Grids. All rights reserved