Answer / sandeep

alternating current

Answer / atul

single phase 50Hz ac supply

Answer / madhuri

AC SUPPLY BECAUSE IT IS ALTERNATING ONE AND IT CAN CHANGE
DIRECTION AND CAN CHANGE BOTH MAGNITUDE AND DIRECTION. SO
SUPPLY OF HIGH VOLT CAN BE REDUCED TO LOW VOLT AND THEN
GIVE TO A DOMESTIC PURPOSE. SUPPLY OF 240V IS GIVEN TO A HOUSES.

IF DC IS GIVEN THEN HIGH VOLT CAN NOT ABLE TO REDUCE TO 240V
HENCE THERE IS A CHANCE OF BURN OUT OF THE METER

Answer / puneet kulshreshtha

SINGLE PHASE 230 V A.C


OR 3 PHASE 440 V A.C

Answer / syam mohan

normally single phase 230v supply but in some cases 415v
three phase supply

Answer / mukesh yadav

singal phase a.c supply of 50 hz, 230 volt, but in some cases 3 phase 430 volt also given

Answer / sachin kumar chauhan

blow 5KW single phase 230V A.C. 50hz throw single phase
energy meter & abow 5KW three phase with netral 415V A.C.
50hz.throw three phase energy meter.the earth is compalsory.

i want to model paper for section engg.

0 Answers   Infosys, RRB,

When we use a multimeter, while checking continuity of a closed circuit , what is happening inside multimeter, how it is working to produce a beep wheather it is closed or open.. is there any internaly voltage/current source inside multimeter?

3 Answers   TNEB Tamil Nadu Electricity Board,

What cmos is and its benefits?

0 Answers  

why the current leads voltage in the case of a capasitor

9 Answers   Infosys,

In stepdown transformer 11/415 volt two nos.(R & Y)HT side fuse is blown ,what will be voltage of ry,rb,yb in secondary side

5 Answers   NTPC,

how can u determine size of the conductor by knowing the voltage level

2 Answers  

I BOUGHT A HAVELLS ACCL WITH GENERATOR STOP FASCILITY(i.e- BASICALLY IT IS A AUTO CHANGE OVER SWITCH) FOR MY HONDA EXK 2000S HOME GENERATOR (WHICH START IN PETROL & RUN IN KEROSENE). ACCL HAS 8 POINT. 2 FOR MAINS(PH & NUE), 2 FOR LOAD, 2 FOR GEN AND 2 FOR IGNITION POINT(X1 & X2). THE IGNITION POINT IS SPECIALLY FOR AUTO ENGINE STOP WHEN MAINS POWER RESTORE. I CONNECT THIS X1 & X2 POINT TO THE GENERATOR STATER MOTOR & EARTHING POINT. BUT WHEN MAINS FAILS THE GENERATOR COULD NOT START, BUT WHEN DISCONNECT THOSE X1 OR X2 POINT, THEN THE GENERATOR START. BUT WHEN MAINS ON THEN THE GENERATOR SHOULD START, AND WHEN I OFF THE MAINS THE GENERATOR AUTOMATICALLY STOP. PLESE HELP ME HOW I STOP THE GENERATOR AUTOMATICALLY WHEN THE MAINS RESTORE.

2 Answers   Honda,

In any plant or substation main incommer voltage RY - 415 V,YB - 400 V, BR - 387 V(in commer feed from transformer 11 Kv /0.415 KV) why found voltage differance in each phase? plant have not self power plant it is depend on outsource grid

2 Answers  

from which formula we select a capacitor rating?

0 Answers   CLG,

What is meant by transformer, why it should be used, with out that equipment what happens if we transformed the supply?

12 Answers   Bhel,

In case of power/distribution transformer what is percent impedence?

1 Answers  

what dose the arrow indicate in the symbol of power transformer?

1 Answers