Answer / karthik_elec

we can calculate the performence and efficiency of machines
with out applying the loads.

Answer / raju

By OC test gives Core + Hysteresis loses and SC test gives
Total Copper losses.

Answer / jagan

oc test used to calculate core loss & sc to calculate
copper loss its helps to find efficiency

Answer / waseem ahmed

to find out core and coper loss

Answer / surendra

directly loading is avoided such that our equipment can be
tested most economically

what is corona ?

3 Answers  

how to determine motor size for a fan application?

0 Answers   EDC,

active elements are those which are capable of

2 Answers  

What meant by XLPE cable

3 Answers  

if two transformers are parallel & both have fault short ckt. impedance of 50KA in each case will it increase or decrease show example?

1 Answers  

What would be the size of wire used for 2 Ton of window A.C?

0 Answers  

what is the formula for 3 phase motor starting cureent deatials 3phase 148A delta 415v, efficiancy 94% can we run the motor with 200A incoming supply

2 Answers  

why we are testing cables with DC supply not with AC supply?

9 Answers   Aurobindo, DEWA, L&T,

What should be the protection scheme for a 15kw, 3-phase motor working in a lathe machine.

0 Answers  

two parallel conductors are carrying the current in the same direction.which of the following statements is true? (a)there is arepelling force between the conductors (b)the force increases when the distance between the conductors is increased (c)there is an attaracting force between the conductors (d)the force increases when the distance between the conductors is decreased

1 Answers  

Why it is necessary to isolate fire fighting when you are taking shutdown for lv board.

0 Answers   KSEB, L&T, Siemens,

what is the minimum bdv value for 400 kva transformer?

2 Answers