Russelectric, a manufacturer of automatic transfer switches and power control systems, has introduced the Paralleling System for ensuring no interruption of critical loads when transferring between power source assets.
The system can be configured for peak shaving and utility-sponsored load curtailment programs and offers high resiliency, power continuity and security for critical renewable energy installations.
Paralleling Systems incorporate dual, redundant, hot synchronized programmable logic controllers (PLCs) for system control. Discrete switches, meters, and control devices are standard to allow manual control capability in the event that both system PLCs fail. The system provides soft loading transfer and phase lock synchronizing when paralleling with the utility, which reduces transients and controls the loading to the engine generators.
Russelectric provides basic or custom SCADA for local or remote monitoring of all power system functions. Custom SCADA systems allow users to monitor system operation, acknowledge alarms and review PLC setpoints.
The Paralleling System offers a choice of either momentary paralleling with the utility or sustained paralleling for soft loading. Also available is paralleling of generator sets with the utility upon return of the utility source after power interruption. Selector switches are provided for open/closed transition, automatic/manual paralleling of generators and utility sources, and automatic/manual retransfer between both sources of power.
System operation begins with testing in closed-transition mode with no interruption of the load. Generators are then paralleled with the utility and the load is transferred to them. Upon completion of testing, the load is retransferred through closed-transition to the utility source without disturbance.
Utility Paralleling Systems can also be used in financial institutions, data centers, telecommunications, airports, healthcare facilities, and water and wastewater treatment plants.
More info www.russelectric.com