Breaker Control; Control Device; Description - Siemens siprotec SJ62 User Manual

2.25

Breaker Control

2.25.1 Control Device

Applications
Prerequisites

2.25.1.1 Description

Operation Using
the Keypad with
Text Display
Operation Using
the Keypad with
Graphic Display
SIPROTEC 4, 7SJ62/63/64 Handbuch
C53000-G1140-C147-A, Edition 07.2015
A control command process is integrated in the SIPROTEC 7SJ62/63/64 to coordinate
the operation of circuit breakers and other equipment in the power system.
Control commands can originate from four command sources:
• Local operation using the keypad of the device (except for variant without operator
panel)
• Operation using DIGSI
• Remote operation via network control center or substation controller (e.g. SICAM)
• Automatic functions (e.g., using a binary input)
Switchgear with single and multiple busbars are supported. The number of switchgear
devices to be controlled is, basically, limited by the number of binary inputs and
outputs present. High security against inadvertent device operations can be ensured
if interlocking checks are enabled. A standard set of optional interlocking checks is
provided for each command issued to circuit breakers/switchgear.
Devices with integrated or detached operator panel can control switchgear via the op-
erator panel of the device. It is also possible to control switchgear via the operating
port using a personal computer and via the serial port with a link to the substation
control equipment.
• Switchgears with single and double busbars
The number of switchgear devices to be controlled is limited by the
– binary inputs present
– binary outputs present
Using the navigation keys ▲, ▼,
switching device to be operated selected. After entering a password, a new window is
displayed where multiple control actions (e.g. ON, OFF, ABORT) are available for se-
lection using the ▼ and ▲ keys. Thereafter a query for security reasons appears. After
the security check is completed, the E
command. If this release does not occur within one minute, the process is aborted.
Cancellation via the E
SC
issued.
Commands can be initiated using the keypad on the local user interface of the relay.
For this purpose, there are three independent keys located below the graphic display.
The key C
TRL causes the control display to appear in the LCD. Controlling of switch-
gears is only possible within this control display, since the two control keys OPEN and
CLOSE only become active as long as the control display is present. The LCD must
be changed back to the default display for other, non-control, operational modes.
, , the control menu can be accessed and the
NTER
key must be pressed again to carry out the
key is possible at any time before the control command is
2.25 Breaker Control
350