Timers - ABB RELION REB500 Technical Manual

1MRK 505 406-UEN B
IEC19000456 V1 EN-US
Figure 52: Coordinating autoreclosure of main protection 1 with main protection 2
5.8.6.5

Timers

The timers have setting ranges extending up to 300 s in steps of 10 ms.
The purpose of each of the timers is described below.
Bay protection functions REB500
Technical manual
The Manual Master Mode is only useful for three-phase AR. For a single-phase
trip, a complex Fupla is required, which is not available in REB500.
REB500sys
y
UZ(2)
Start RST
Trip CB
Trip CB 3P
> = 1
1PolAR
ZExtension
UZ(1)
Start RST
Trip CB
Trip CB 3P
1PolAR
ZExtensionAR
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Start
Trip CB
Trip CB 3P
Trip 3-Pol
ZExtension
> = 1
Start
Trip CB
> = 1
Trip CB 3P
>
= 1
Trip 3-Pol
ZExtension
18000051-IEC19000456-1-en.vsdx
Section 5
Bay protection functions
AR(2)
AR(1)
GUID-6CEC8BC6-7684-4944-B5AB-AF62A7DDC672 v1
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