Ashida electronics pvt. Ltd. The foremost designers, developer & manufacturers of electrical power protection relays, scada systems & metal detector offers wide range of protection relays. These are dsp based `numerical` communicable/non-communicable non-directional oc/ef relays. These are available with number of protection functions such as lbb, trip circuit supervision ,di/do etc.
Adr 241s is intended to meet demand of ring main unit [rmu] type switchgear where auxiliary supply as well as pt voltage is not available. The relay takes power from ct`s
And continuously monitors all 3 phases and earth current, through ct connections. The high-speed micro controller samples this current through a 12 bit a/d converter. Input current is
Displayed on 16 x 2 lcd display for metering. The adr 241s has external status input for fast trip , trip block , remote trip [230vac] and external latching type potential free contact for remote trip indication.
