System Settings; Circuit Breakers - ABB RELION REB500 Operation Manual

1MRK 505 400-UEN B
Section 4
4.1

Circuit breakers

IEC18000456 V1 EN-US
Figure 2:
The Overview tab opens a dialog box with a list of all the feeder breakers and bus-tie breakers
shown in the single-line diagram are together with their labels, bay labels, type of circuit-
breaker (feeder or bus-tie) and the circuit-breaker reclaim time.
When Extended blocking function for bus tie-breaker is set to No, the standard blocking
function for bus tie-breakers is activated. If this setting is Yes, the extended blocking function
for bus-ties in series is activated. This setting is relevant only for coupler breakers.
When Breaker position used for BBP is set to No, the current measurement of busbar
protection is enabled regardless of the feeder circuit-breaker. When set to Yes, the current
measurement of busbar protection is enabled or disabled depending on the position of the
circuit-breaker. In this case, configuring the signal 11505_Close command CB is imperative.
In the Details view the Label field can be edited and the reclaim time for each circuit-breaker is
entered in the corresponding field.
The setting of the reclaim time t

t t
(
rec
tCB : Maximal opening time of the CB including the arc extinction time
•
treset : Reset time of the breaker reclaim function depending on two factors:
•
Distributed busbar protection REB500
Technical manual

System settings

Settings/Circuit-breakers - Overview
 
t t
, see Table 24
CB reset s
© Copyright 2019 ABB. All rights reserved
is the sum of three values rounded to 20 ms steps
rec
for possible values):
System settings
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12000127-IEC18000456-1-en.vsdx
Section 4
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