Auto transformer starter gives the same effect as star/delta
strater if its turn ratio =
A 0.5 B 0.67
C o.66 D 0.577
Post New Answer View All Answers
State superposition theorem?
prove that power consumed in 3 phase delta system is 3 times as compared to 3 phase star system
If we have to feed a housing complex having load 8MVA, than what would be the better option, either we first step down 33kv supply into 11kv & than 430v or we proposed no of 33/.44 kv transformer, also which option is economical?
what is the differance between HT motors And LT MOTORS.
How the PF control while running DG set with load
What is the tube exial fan?
Installation method of self treated earth electrode.
What is the Basic Difference bitween Long Shunt Connection and Short Shunt Connection in DC Generator?
hi, i have 3x200KVA and 2 x 80KVA UPS with battery bank of 150AH 68Nos. and 100AH 204Nos., i need to install AC either ductable or PAC type, so can you help me to calculate heat load and capacity of the AC to install.
A 3 phase transformer's (Y-Y) Y and B phase is (Y and B connection not broken) broken from neutral and R and Nutral connection is ok, what will be the relay tripping and why
Is it true that in the 3 phase transformer, the limbs of the core are at 45 dgrees to each other. if true, why?
Difference between earthing & grounding.?
why the making current is more than then the breaking current and if its true then its about a controling circuit or breaker power contact points
Help need in transformer !? Hello Friends The parameters of 2300/230 v 50hz t/f is R1=0.286 ohm R`2=0.319 ohm Rc=240 ohm X1=0.73 ohm X`2=0.73 ohm Xm=49.2 ohm Secondary Load impedance ZL=0.387+J0.29 solve the exact equivalent circuit with normal voltage across primery.. I know every thing but i cant find CURRENT I1=? and I`2=? Please help me give solution or only Formula please please...
what is the path of thunderlightening? once both a buffalo and a person were standing 5m apart but lightening hit and killed buffalo not person?