Breaker Control
A control command function is integrated in the SIPROTEC 4 7SJ62/64 to coordinate the operation of circuit
breakers and other equipment in the power system.
Control commands can originate from four command sources:
•
Local control at the device's operator panel
•
Operation using DIGSI
•
Remote control via network control center or substation controller (e.g. SICAM)
•
Automatic functions (e.g., via binary input)
Switchgear with single and multiple busbars are supported. The number of switchgear devices to be controlled
is limited only by the number of binary inputs and outputs. Interlocking checks ensure high security against
maloperation and a multitude of switchgear types and operating modes are available.
Control Device
In devices with integrated or detached operator panel, switchgear can be controlled via the operator panel of
the device. In addition, control can be executed via the operator interface using a personal computer and via
the serial interface with a link to the substation control equipment.
Applications
•
Switchgears with single and double busbars
Prerequisites
The number of switchgear devices to be controlled is limited by the
binary inputs present
binary outputs present
Description
Operation Using the Keypad with Text Display
Using the navigation keys ▲, ▼, ◀, ▶, the control menu can be accessed and the switching device to be oper-
ated can be selected. After having entered a password, a new window is displayed in which multiple control
actions (e.g. close, open, cancel) are available and can be selected using the ▼ and ▲ keys. Thereafter, a query
appears for security reasons. After the security check has been completed, the ENTER key must be pressed
again to carry out the command. If this release does not occur within one minute, the process is aborted.
Cancellation via the ESC key is possible at any time before the control command is issued.
a
Operation Using the Keypad with Graphic Display
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 CTRL causes the control display to
appear in the LCD. Controlling of switchgears 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 navigation keys ▲, ▼, ◀, ▶ are used to select the desired device in the Control Display. The I key or the O
key is then pressed to convey the intended control command.
Consequently, the switch icon in the control display flashes in setpoint direction. At the lower display edge,
the user is requested to confirm the switching operation via the ENTER key. Thereafter a query for security
reasons appears. After the security check is completed, the ENTER key must be pressed again to carry out the
command. If this confirmation is not performed within one minute, the setpoint flashing changes again to the
2.27
2.27.1
2.27.1.1
Functions
2.27 Breaker Control
SIPROTEC 4, 7SJ62/64, Manual 353
C53000-G1140-C207-8, Edition 08.2016
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