Voltage control relay SEL-487V

current

Capacitor Protection and Control System Simplify relay setting and application while reducing inventory by using one relay for all of your capacitor bank needs. The versatile SEL-487V Capacitor Bank Protection and Control System can handle grounded and ungrounded, single, and double-wye capacitor bank applications. It provides sensitive voltage differential and current unbalance protection with compensation adjustment for small voltage differential levels due to variations in individual capacitor elements from manufacturing, potential transformer, or instrument transformer measurement errors. Application-based settings simplify setup and installation while fault-finding logic locates faulty capacitor units to speed up necessary maintenance. Synchrophasor technology provides situational awareness and real-time control.