Nippon 6000t is a versatile line frequency indicator cum trip unit which works on phase lock loop multipliers, quartz crystal and comos dividers. The instrument can indicate line frequency with ± 0.01 hz accuracy and has high and low set points set by two sets of 4-digit heavy duty thumbwheel switches. Two relays are provided with frequency trip units for limits and is immuned to industrial noise. Frequency trip units can be used for application in drives, ups, mcb panels, controls, power stations and state electricity boards. Nippon 6000 t is modular design frequency trip units housed in 96 [h] x 96 [w] din size plastic molded case.
