What is d main advantage of using double circuit 3 phase transmission ?
No Answer is Posted For this Question
Be the First to Post Answer
following are the questions asked in interviews: 1) Considering the short circuit fault, which switchgear is preferable, SFU OR MCCB? Which operates faster? whicg one is popular in Indian Market and why? 2)Define SCPD. What is type2 coodination? 3)Why the contactor rating is higher for the fuseless selection than for fuse selection? whether the ratinf of SFU or MCCB remains the same in both the cases? 4)If the HP rating is known then can you calculate the ratings of L.V Switchgear(SFU/MCCB, contactor, OLR) without using the selection chart?
HOW TO FIND THE PRIMARY AND SECONDARY OF TRANSFORMER(IN OFF CONDITION) USING MULTIMETER? IS IT POSSIBLE FIND BY SEEING RESISTANCE???
How we check vector group for a Dyn1 transformer?
what is photo voltic cell,& what are the materials associated with that?and any spcifications like volts/cm etc?
difference between moore and mealy model
What must the distance between two MV cables be when they are laid on tray?
what is fault level of power system ?
3phase lt motor winding how to checking with megger
What is difference between incomer & outgoing type Vaccum Circuit Breaker?
two TG running in parallel at equal load.one TG CB tripped in reverse power relay.after tripping found its excitation was on & turbine running at rated speed.Please clearify why that TG tripped in reverse power ?
1.After synchronising the alternator to the grid,how we r delivering power to the grid?if the i/p increases does the speed hence frequency increases? 2.y the power factor is changing when exitation changes?what is the relation with p.f and flux?
what is surge suppressor?