Which of the following is the basic consideration in the design of insulation ?

Related Mcqs:

_______________is universally used for windings of electrical machines because it is easily workable without any possibility of fracture?

A. Silver B. Steel C. Aluminium D. Copper...

cooling is the process of dissipating the armature and field winding losses to a cooling medium circulating within the winding insulation wall______________?

A. Direct B. Indirect C. Conventional D. Any of the above...

Tractive magnets are operated from____________?

A. a.c. supply B. d.c. supply C. either a.c. or d.c. supply D. none of the above...

In transformers using hot rolled steel, the cross-section of the yoke is made about __________ greater than that of the core?

A. 5 percent B. 10 percent C. 15 percent D. 30 percent E. none of the above...

The laminations of the armature of a D.C. machine are usually ___________ thick?

A. 0.1 to 0.2 mm B. 0.2 to 0.3 mm C. 0.3 to 0.4 mm D. 0.4 to 0.5 mm...