ABB Relion REB500 Product Manual page 15

ABB
Distributed busbar protection REB500
Product version: 8.2
Table 3. Isolator image
Primary equipment
N/O contact: N/C contact:
Isolator CLOSED Isolator OPEN
open open
open closed
closed open
closed closed
For certain busbar and end fault protection configurations it is also necessary to know the status of the circuit breakers.
Where CB positions signals are configured as inputs, it is extremely important for the "CB Close" command to be
correctly connected.
Differential current supervision
The differential current is permanently supervised. Any
differential current triggers a time-delayed alarm. In the
event of a differential current alarm, it is possible to select
the behavior of the busbar protection:
· blocked
· zone-selective blocked
· remain in operation
Trip redirection
A binary input channel can be provided to which the
external signal monitoring the circuit-breaker air pressure
is connected. Tripping is not possible without active
signal.
When it is inactive, a trip generated by the respective bay
unit is automatically redirected to the station at the
opposite end of the line and also to the intertripping logic
to trip all the circuit-breakers connected to the same
section of busbar.
The trip redirection can also be configured with a current
criterion (current release criteria).
Human machine interface (HMI)
The busbar protection is configured and maintained with
the aid of human machine interfaces at three levels.
Local HMI
The local display interface installed in the central unit and
in the bay units comprises:
· a graphical monochrome LCD with a resolution of
320x240 pixels each for displaying system data and
error messages
· keys for entering and display as well as LEDs for the
indication of trips, alarms and normal operation
· in addition 15 freely programmable three color LEDs for
user-specific displays on the bay unit 500BU04 and
central unit 500CU04.
Status in prot. system
Last position stored
(for busbar protection)
OPEN
CLOSED
CLOSED
The following information can be displayed:
· measured input currents and voltages
· measured differential currents (for the busbar
protection)
· system status, alarms
· switchgear and isolator positions (within the busbar
protection function)
· starting and tripping signals of protection functions
HMI500 Operator
More comprehensive and convenient control is provided
by the external HMI software running on a PC connected
to either the central unit or a bay unit. The software
facilitates configuration of the entire busbar protection, the
setting of parameters and full functional checking and
testing. The HMI500 can also be operated via the station
bus on MicroSCADA for example, thus eliminating a
separate connection to the central unit.
The HMI500 runs under: Windows XP and Windows 7
HMI500 is equipped with a comfortable database
comparison function enables a detailed comparison
between two configuration files (e.g. between the PC and
the central unit or between two files on the PC).
PCM600 Connectivity Package
After installation and commissioning, PCM600 offers easy
access to the installed base of ABB substation automation
products within the substation. The connectivity package
for the REB500 supports this with an operator mode,
where most of the reporting and monitoring features of the
REB500 are available read-only within the PCM600
framework.
WebHMI
As an alternative to HMI500 and PCM600, the WebHMI
offers easy access to all current data within the REB500
system using the browsers Google Chrome 49, Microsoft
Internet Explorer 11, Mozilla Firefox 44, or later versions.
1MRK 505 352-BEN
Issued: 2016-03-01
Alarm facility
Alarm after settable time
isolator alarm
+ switch inhibit signal
no
no
isolator alarm
+ switch inhibit signal
Revision: -
Information on
local HMI
invalid
open
closed
invalid
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