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what is "pu" in electrical engg.

the per unit value of any quantity is defined as the ratio
of the quantity to it's base value es pressed as decimal.

p.u=actual value/base value

 Is This Answer Correct ? 10 Yes 2 No

why would the rotor rotate at sub synchronous speed against the direction of rotating flux when d rotor of 3 phase IM is connected to 3 phase balanced supply and the stator windings are shortcircuited ??

1159

Define reserve-generating capacity?

250

Percentage losses in power generation?

2125

Explain forward resistance, static resistance and dynamic resistance of a pn junction diode.

238

Why can't we take NO LOAD TRIAL of motors having V1 mounting??

1123

What are :- AC Distribution Board (Single & Double Front) DC Distribution Boards Distribution Board LT Breaker Panel.

1230

Define the term factor of inertia.

1055

Difference between megger test equipment and contact resistance meter test instruments?

339

what is the difference between active power and reactive power and apparant power in practical as well as theoritical

1051

Difference between ac parallel circuit and ac series circuit?

1200

why magnet has north and south poles only why not east and west and why we are considering as north and south poles? why cant we consider as east and west?

1104

which types of relay used in acb and vcb?

1880

WTA used cb?

1017

Write the analogous electrical elements in force voltage analogy for the elements of mechanical translational system.

265

from generating station If 400v LT line length is 1000m how much voltage is drop and how do i calculate it? which cable will be use for this line?

1142