• Parma International Private Limited

Digital Motor Protection Relay, VAST

VAST (Voltage, Ampere, Scanner & Trip) is a digital motor protection relay. It offers the following protection: over current with time delay, over voltage with time delay, phase reversal, phase failure (sensing through current), plus all the necessary electrical metering. This motor protection unit with metering has a few unique features. Specifications: voltage, amp (programmable CT ratio), frequency display in four line with trip for over current, under voltage, over voltage, phase loss (through current sensing), phase sequence reversal; system – 3-phase, 4-wire; input voltage – 415 V AC (L-L); input current – 1 A/5 A; range volt, resolution – 0 –500 V AC max resolution 1 volt; range amp resolution – 5 A (.2 A to 6 A) 1 A; display – four line three digit each 0.5" super bright display; bar graph – for each phase in five steps of 20% each as per CT ratio; protection – over current with time delay 0-99 sec; phase failure – phase failure t