Table of Contents
Advertisement
1MRK 580 146-XEN
Page
2 - 6
Introduction - REC 561
The fuse failure function associated with the energizing check function is
solved by an external device and connected to the binary inputs in REC
561.
Two double-breaker bays
REC 561 type 2 is normally used for this application. The maximum
number of double-breaker bays including synchro-check functions are
two. The voltages to be used for the synchro-check function are based on
one-phase values. If P, Q, f and three-phase values of U and I must be pre-
sented for the operator, then external transducers connected to mA inputs
in REC 561 can be used. To get the line current, the currents through the
circuit breakers are summed externally.
1 U
1 U
REC
561
1 I
1 I
Fig. 5
Two, double-breaker arrangement
The fuse failure function associated with the energizing check function is
solved by external detection of the fuse failure and connected to the
binary inputs in REC 561.
Up to 12 bays
REC 561 type 3 must be used for this application. The normal use of this
type is on medium-voltage level with a small number of apparatuses per
bay and with simple interlocking conditions, which can be solved by the
configurable logic, that is, without standard interlocking modules. The
upper limit of the number of apparatuses to be controlled is still 24. The
synchro-check function for several bays (> 3 bays) can be solved by using
the synchro-check function for one bay and by connecting the required
line voltages via an external voltage selection to the control terminal.
The fuse failure function associated with the energizing check function is
solved by an external device and connected to the binary inputs in REC
561.
1 U
1 U
ABB Network Partner AB
Version 1.0-00
(X80146-5)
- Quick Links:
- Application
- Rec 561 Types
Hide quick links:
Advertisement
Chapters
Table of Contents
