Ashida electronics pvt. Ltd is a designers, developer & manufacturers of electrical power protection relays & scada systems. Ashida electronics pvt. Ltd is an iso 9001:2000 certified company. Ashida electronics pvt. Ltd offers ashida numerical neutral
Displacement protection relay adr 112 e is designed to meet demand of low and medium switchgear control. The adr112e is basically 1 phase neutral voltage protection with idmt & definite time. The adr112e continuously monitors the phase voltage, through pt connections. The high-speed micro-controller samples this voltage sine wave through a 12 bit a/d converter. The microcontroller performs powerful digital algorithms to find out amplitude of voltage signal, and then this value is use for protection and metering function. All measurement is tuned to fundamental frequency and rejects all higher harmonics present in electric supply. Each phase voltage is also displayed on 16 x 2 lcd display for metering. The relay is having main three functions 1] protection 2] self-supervision 3] measurement. The key features of the ashida numerical neutral displacement protection relay are:
