For power transformers, PWC600 can estimate the residual fluxes in the core to minimize energization transients under all switching scenarios. It features unprecedented flexibility for switching various loads with diverse configurations, comprehensive monitoring functionality to track circuit breaker behavior and handling multiple loads connected to the same breaker. Switchsync ® PWC600 is designed for single-pole operated circuit breakers, controlling each pole to close and/or open at the optimal point on the wave for the switched load, the circuit breaker, and power quality.

Offering the full functionality and reliability of previous Switchsync ® products, it additionally includes Ethernet interfaces, which support modern communication protocols such as IEC 61850, electronic voltage and current transducers, and enhanced functionality for the user. Switchsync ® PWC600 is Hitachi Energy's latest generation of point-on-wave controllers, based on the well-proven Relion ® platform of protection and control products.

Since 1986, thousands of Switchsync ® controllers have been delivered all over the world. The method is also gaining acceptance for re-energizing of EHV transmission lines, replacing traditional pre-insertion resistors. Controlled switching contributes to mitigating harmful electrical transients upon planned switching of capacitor banks, shunt reactors, power transformers, and power cables.

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