Answer / krish

dear Thowsif

2 no's of body earth required for 320kva dg set

Thowsif u mension the DG rating KVC is not correct it
mension for KVA

Answer / virendra

2 nos Cu earthing for Neutral Earthing & 2 nos GI Earthing
for Body... Total 4 nos...

Answer / sheikh

there is need only 3 earth pits and evry earth pits should have resistence approx 1 to 3 ohms. every earth pit distance should be minimum 10feets. 2 earth allocated for safety earth
like body grounding and third earth would be connected on neutral.

Answer / rameshkumar

1 nos of neutral earthing need its for eqipment safety
2 nos of body earthing need its for human safety

Answer / nathan

WE will say DG on KVA,2nos of earth one in for neutrel which comefrom alternater and second is body earth.

Answer / sam

we need 4 earth pit or 2 earth pit why iam mentioning it as
4 generally 16 feet depth earth is needed for body earth
and 16 feet for nuteral earthing its complicated to dig
16feet pit so we can split it as two 8feet. but there should
be 10 feet deference between body earth pit & nuteral
earth pit

how one can know the charging time, discharging time of a 12 VDC battery ? If i have a battery of 12 VDC , 4.0 AH , how long will it take to charge from a charger (power supply) of input 220 V , Output 15 V and output current of 3000 mA and how long will it take to discharge whether using or not ? How much backup will it give ?

1 Answers   ONGC,

DEAR SIR, HOW TO CALCULATE WELDING TRANSFORMER CAPACITY IN KW OR KVA (POWER). TWO WELDING TRANSFORMER USED WHAT TYPE OF DG SET CAPACITY LIKE ( 45 KVA OR 62.5 KVA), PLEASE TELL THE WELDING TRANSFORMER RATEINGS. I AM REFINARY (TANKS WELDING) THANKING YOU

2 Answers  

what is the difference between EMF and potential difference??

3 Answers  

why induction motor's p.f 0.8

0 Answers   Suzlon,

what is pmu

1 Answers   Alstom,

What is the si unit

2 Answers  

direction of tarbine& genrator

0 Answers   Sandvik,

how to select automotive wire by mathematical equation with given current, vlotage and resistance

0 Answers   Tyco,

what is the difference between upper impedance and lower impedance distance relay?

3 Answers   Havells, Power Grid,

why asa method ZPF method is more accurate than ASA method?

0 Answers  

why permanent magnet generator have higher frequency of 400hz

3 Answers   Jaypee,

what is the use of commutator in dc motor if we supply ac ? commutator is used to convert ac to dc.and it is used to arrange the flux in unidirectional in case of dc supply. if we give ac as supply to dc motor what is the use of commutator?

0 Answers