Reference no: EM132419604

Questions -

Q1. A 132 KV line with following ABCD parameters

A = D = 0.966 ∠ 1.2^o

B = 70 ∠ 60^o

C = 0.5 × 10^-4 ∠ 90^o

The pf at receiving end is 0.8 lagging Find the pf at sending end.

A) 0.8 lag

B) 0.866 lag

C) 0.766 lag

D) 0.9 lag

Q2. A shunt motor having input voltage 200 V has an armature resistance of 0.1 Ω and shunt field resistance of 200 Ω. At no load the motor draws 4 A and runs at 1500 rpm. The motor draws 51 A at rated voltage and rated load. If the rotational losses at no load and full load are same. Then, the rated shaft torque is

A) 55.12 N - m

B) 59.68 N - m

C) 64.44 N - m

D) 63.56 N - m