1. The most commonly used liquid for transformer insulation is (a) mineral oil (b) askerals (c) silicone oil (d) polyester oils. 2. For generator coil insulation the class of insulation used is (a) class A (b) class B (c) class C (d) class E

1. The most commonly used liquid for transformer insulation is (a) mineral oil (b) askerals (c) silicone oil (d) polyester oils. 2. For generator coil insulation the class of insulation used is (a) class A (b) class B (c) class C (d) class E

Power System Analysis and Design (MindTap Course List)

6th Edition

ISBN:9781305632134

Author:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Publisher:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Chapter3: Power Transformers

Section: Chapter Questions

Problem 3.34P: Three single-phase, two-winding transformers, each rated 450MVA,20kV/288.7kV, with leakage reactance...

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Question

i need the answer quickly

1. The most commonly used liquid for transformer insulation is
(a) mineral oil
(b) askerals
(c) silicone oil
(d) polyester oils.
2. For generator coil insulation the class of insulation used is
(a) class A
(b) class B
(c) class C
(d) class F

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