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Transfer & Synchronization
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NR Electric designs transfer devices to secure the continued power supply of low voltage busbar for critical loads.
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PCS-9651 Automatic Transfer Switch
The PCS-9651 continuously monitors the power supply lines of load and provides automatic transfer logic from a main source to backup source. If a fault occurred in any of the power supply lines, the PCS-9651 can discriminate the abnormal state and switch over the load from the faulty line to the normal line, to guarantee the continuous power supply to the load. Up to four typical switching modes are provided for selection. Besides, the remote/local control function is integrated in the unit.This device can fully support the IEC61850 communication protocol and GOOSE function,…
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PCS-9655 High Speed Transfer Device
The PCS-9655 high speed transfer device is used in power plants to ensure the continuous and reliable power supply for busbars.In normal operation, the power supply of busbar is provided by the main power supply branch, and the standby power supply is ready for switching. If the circuit breaker CB3 is closed, the standby power supply is in hot standby state; if the circuit breaker CB3 is opened, the standby power supply is in cold standby state.If the main power supply has fault, the PCS-9655 will trip circuit breaker “CB1”, and the voltage of busbar is lost. Due to the mech…
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PCS-9659 Synchronizer
PCS-9659 is a digital synchronizer that determines the proper time to initiate closing of the circuit breaker to parallel a generator and bus, or to reclose a line. In order to fulfill different application requirements, it offers three synchronizing modes: automatic synchronizing, semi-automatic synchronizing and manual synchronizing. By monitoring frequency, voltage and phase angle, the PCS-9659 provides correction signals to the governor of prime mover and voltage regulator of generator for voltage matching and frequency matching.
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