FKV-53NH-V2 is a multifunctional three-phase protection relay designed for 3P4W systems. It integrates phase failure, over/under voltage, phase imbalance, neutral loss protection in one compact unit. The neutral loss protection ensures stable voltage distribution. With adjustable parameters, the relay significantly improves system safety and operational reliability.
·3P&4W System (3*220VAC+Neutral)
· Over Voltage : 130V – 160V AC+Off (Adjustable)
· Under Voltage : 70V – 100V AC+Off (Adjustable)
· Asymmetry : %5 – %50 (Adjustable)
· Error Waiting Time : 1sec. – 30sec. (Adjustable)
· Reset Time : 1sec. – 30sec. (Adjustable)
· Neutral-Off Protection
