Instructions; Application - ABB REC 523 Technical Reference Manual

1MRS750881-MUM
4.
4.1.
Remote Monitoring and Control Unit
Technical Reference Manual

Instructions

Application

REC 523 is designed to be used for the control, measurement, supervision,
protection and fault indication of secondary substations in medium voltage
networks. The main area is remote control and monitoring of the medium voltage
overhead line and underground networks:
• Pole- and pad-mounted switches and disconnectors
• Ring main units (RMU)
• Small transformer kiosks
• Other primary and secondary substation automation
The functionality of REC 523 is tied to the hardware configuration.The desired
functions can be activated from a wide range of protection, control, measurement,
power quality, condition monitoring, general and communication functions within
the scope of I/O connections, considering the total CPU load. Compared to the
traditional use of separate products, the combination of desired functions provides
cost-effective solutions and, together with the relay configuration (IEC 61131
standard), allows the REC 523 unit to be easily adapted to different kinds of
applications.
N e tw o rk
C o n t ro l
C e n te r
Wi n d m i ll p o w e r
st at io n
M V c ab l e
n e tw o rk
R M U
Se c o n d ar y
su b st a ti o n
M V/ LV
LV ca b l e
n e tw o r k
Fig. 4.1.-1 Remote Monitoring and Control Unit system based on REC 523
By means of a programmable LED display, the control functions of the REC 523
unit indicate the status of disconnectors and circuit breakers, faults, alarm limits, and
so on. Further REC 523 allows status information to be transmitted to the remote
control system. Controllable objects (such as circuit breakers) can be opened and
closed over the remote control system or by using the local automation functions,
such as reclosers and sectionalizers. Status information and control signals are
transmitted over the serial bus.
H V
o v e rh e ad
n e tw o rk
Su b st at io n H V/M V
S o la r p o w e r
st ati o n
G at e w ay
S PA
o r L O N ®
Disc onn ec t or
uni t w it h S F6
-iso lat e d
di sc on nec t o r
M V/ LV
Tra nsf orm er
w it h air-iso lat ed
d is c onn ec t or
LV
o ve rh e a d
P a d - m o u nt ed
ne tw o rk
M V/LV sta ti o n
En e rg y m et er
L o a d c o n tro l d ev ic e
REC 523
P ow er st at io n
Pro c es s
au t om a ti on
sy ste m
S PA
or LO N ®
L o c al
c o n tr o l
1 10 k V/
2 0 kV
H V
o ve rh e a d
ne tw o rk
P ro t ec t io n & C ont ro l
I ndustrial plant
Pr oc e ss
M V
a ut o m at io n
o v e rh e ad
sy st em
n e tw o rk
SPA
or L O N ®
M
Pr o te ct io n & Co n tr o l
P ro te ct io n
& Co n tr ol
G
P ro te c tio n
H V/ MV
15