Trip/Close Tests For The Configured Operating Devices - Siemens SIPROTEC 7SJ62 Manual

3.3.15

Trip/Close Tests for the Configured Operating Devices

Control by Local Command
If the configured operating devices were not switched sufficiently in the hardware test already described, all
configured switching devices must be switched on and off from the device via the integrated control element.
The feedback information of the circuit breaker position injected via binary inputs is read out at the device and
compared with the actual breaker position. For devices with graphic display this is easy to do with the control
display.
The switching procedure is described in the SIPROTEC 4 System Description. The switching authority must
be set according to the command source used. The switching mode can be selected from interlocked and non-
interlocked switching. Please note that non-interlocked switching can be a safety hazard.
Control by Protective Functions
For OPEN-commands sent to the circuit breaker please take into consideration that if the internal or external
automatic reclosure function is used a TRIP-CLOSE test cycle is initiated.
DANGER!
A test cycle successfully started by the automatic reclosure function can lead to the closing of the
circuit breaker !
Non-observance of the following statement will result in death, severe personal injury or substantial property
damage.
Be fully aware that OPEN-commands sent to the circuit breaker can result in a trip-close-trip event of the circuit
breaker by an external reclosing device.
Control from a Remote Control Center
If the device is connected to a remote substation via a system interface, the corresponding switching tests may
also be checked from the substation. Please also take into consideration that the switching authority is set in
correspondence with the source of commands used.
SIPROTEC, 7SJ62/64, Manual
C53000-G1140-C207-2, Release date 01.2008
Mounting and Commissioning
3.3 Commissioning
461