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Description
SPAU140C SPAU 140 C Synchro-check relay
Synchro-check relay for checking the conditions at circuit breaker closing
One synchro-check relay is capable of checking the close conditions of two separate circuit breakers.
Synchro-check function for checking synchronism when live lines/busbars are to be connected together.
Voltage-check function for checking energizing conditions. Four energizing directions selectable for each circuit breaker.
Two control modes available: continuous mode
operation for applications where the synchrocheck relay gives the close permission to another module (e.g. the control module) and command
mode operation for applications where the relay closes the circuit breaker via its own control output.
Alarm signal for failed CB closing at command mode operation
Continuous self-supervision of both hardware and software
Serial port for connecting the relay to the electrical or optical SPA bus
The relay incorporates two identical stages which operate as independent units. Both stages
of the synchro-check relay has two parallel functions: a synchro-check function and a voltagecheck function.
The synchro-check relay can be used for two different operating conditions, the most typical
of which is where both sides of the circuit breaker to be closed are live. Then synchronism
is always checked before the circuit breaker is given the permission to close. The other situation is where one or both sides of the circuit
breaker to be closed are dead and, consequently,
frequency and phase difference cannot be measured. In this case the relay checks the energizing direction. The user is
able to define the voltage range within which the measured voltage is determined to be “live” and “dead”.
Please contact Sunny sales@xiongbagk.cn for the best price.
➱ sales manager: Sunny
➱ email mailto: sales@xiongbagk.cn
➱ Skype/WeChat: 18059884797
➱ phone/Whatsapp: + 86 18059884797
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➱ Website:www.sauldcs.com
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