Electrical Machine Design Set 2

malamine ✘ milk of lime ✘ epoxy ✘ latex. ✔

These are hard, strong and dense ✘ These are stable at high temperatures ✘ These are unaffected by commercial acids and alkalies ✘ All of the above. ✔

coil-sides ✘ turns ✘ coils ✘ slots. ✔

5 kV/mm

✘

10 kV/mm

✘

15 kV/mm

✘

30 kV/mm

✔

Teflon ✘ Sulphur hexafluoride ✘ Stealite ✘ Phologopite mica. ✔

contact material ✘ fusing material ✘ low temperature insulating material ✘ none of the above. ✔

diameter of fuse wire ✘ number of strands of wire ✘ length of the fuse wire ✘ all of the above. ✔

traction motors ✘ submersible pump motors ✘ single phase motors ✘ dc motors. ✔

heat conductivity ✘ dielectric strength ✘ mechanical strength ✘ volatility. ✔

composition of the material ✘ thickness of the material ✘ time of application of voltage ✘ all of the above. ✔