Answer / soumendasbiswas

Depending upon the total load and maximum demand of that
plant...

Answer / rajani

Actually DG size has to select depends on maximum demand
and considering base load and starting load and step load

base load = total maximum demand - loads which are
taking high loads at startign

starting load = if motor loads are DOL starts 6 times to
the Ifl will take at starting and soft
starters /VFD's will take 3 times to Ifl
step load = Whwn the main power supply is off
immidiently what are the load we can
switched ON through DG -called step load
(generally 40-60% of Dg load can be ON as
first step)

So our selected DG shopuld meet the step load and capable
to withstand startign loads

Answer / sheo

Suppose LOAD-1000 KW

So design load of Genset @ 80% inefficiency.
and power factor @80% in case of ( Failure of capacitor)because life of Capacitor and Gen set never equal to each other.
so 100% power back-up for 1000 KW load required DG 1000/0.64=1562.5 KVA

Recommended DG-1500 KVA

Answer / rakesh kumar sharma

generally the efficiency of the D.G.set is 80% because of
the power factor.so u have to add 20% on the entire
load.

Answer / sijish

DG normaly loads up to 80% of the full load rating,

First step.Calaculate the load in KW.
Consider the staring current of the Load.
The minimum Amps rating of the dg shoul be 4 Times the
Running current of the motor load

Answer / anil

Depending up on the total load to select the dg.for 5kw
load 10kva DG is suitable.
dg can be loaded for 80% of full load ,ie 8kw
calculating PF 6.4 kw can be loaded in 10kva dg.

Answer / m.prabhakar

Depending up on the total load to select the dg.For example
180KW load is there 200kva capacity genarator is sufficient.

How to calculate no of EARTH PIT? Describe the formula as per IS standard?

0 Answers  

As we know,charged clouds(from which lightning stroke initiates)may be charged with either +ve charge or -ve charge. Now say one cluster of cloude is fully charged with +ve charge & another cluster is fully charged with -ve charge. In the sky these two cluster of charged clouds have come in such a distance that, if they come clouser by some few yeards then the lightning discharge will take place between these two cluster of clouds. Under such a situation an Aircraft came inbetween. what happend??

5 Answers  

how can calculated the rating of the 11 KV transformer?

6 Answers   NBCC,

What is the difference between ground & earth or neutral

1 Answers  

how to deside the capacity of chock for drive?

0 Answers   Essar,

what is differentila pilot supervision in the incomer control panel in the power station?

0 Answers  

1.What is the range of stator resistance of 3-phase induction motor? 2.Two electrically operated vibro motors are foxed in parallel direction in vibrating feeders. what is the direction of both vibro motors?

0 Answers  

what is the reactive power what is the use of it in system

0 Answers   L&T,

why fuse is not applicable for nutral and what will happen when it applied.

4 Answers  

what is a speed of rotor when we give supply to stator of 50hz and as well as rotor of 60hz of an induction motor?????

0 Answers  

what is anti-pumping relay and the significance of it in a switcgear cb control system?

1 Answers  

How LT megger works ?

0 Answers