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Answer Posted / u.chandarasekar
pl refer to dinamalar and siruvar malar book
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In an ACB shunt trip coil and undervoltage coil operated normally( breaker open and charged). But closing coil not operating untill manually discharge and recharging. Any help.
Why PS class CT is always preferred for Differential protection?
Actuality I have at home electrical panel with 220v 50hz, and I want to converter from there to 110v 60hz, to wiring on the half of my house. Also I like to keep another half of my house with the original 220v 50hz. What is the best and safety way to do?
in dc suppy frequency is zero why? if dc frequency is zero how to exist dc transients and ac transients
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does buccholz in a transformer use batteries
I want to make street light with solar system ... What may I do for procedure and how much of estimation for each material ... If any one knows guide me and inform this id : aravindd7@gmail.com
The windings of a transformer are divided into several coils, because?
Difference between ac parallel circuit and ac series circuit?
In Air circuit breaker LSIG protection unit is used. Without fault in cables (2 runs 3Cx150Sq.mm Copper, 1Kv grade, XPLE armored cable IR value is more than 550Mohm @ 500V Megger) and load section Long time Overcurrent protection is triggers and trips the unit. We changed LSIG protection with new factory tested unit. Even then fault is persisting. Please suggest the possible causes
What is the Designing & Selection Procedure for a DG/Transormer of rated capacity?
