Across
- 2. paper insulation is mainly used in ________
- 5. the material used for insulation that is exposed to atmosphere is _________
- 6. the best insulation among all insulating materials available is ___________
- 11. for high frequency applications the _________ plastic is preferred.
- 13. SF6 is ____________ gas
- 14. the breakdown voltage of a spark gap for impulse voltage is ________ compared to breakdown voltage of power frequency ac.
- 15. in high voltage switch gear the insulation used inside the breaker is _________
Down
- 1. thermal classification of insulating material is done for _________
- 3. breakdown is_____________ in solids
- 4. synthetic liquid dielectrics are mainly used in _______
- 7. the new insulating liquids that have been used in recent years are__________
- 8. the most commonly used liquid as insulating medium is ________________
- 9. electrical conduction in gases was first studied in 1905 by ________
- 10. transformer oil is__________oil.
- 12. the usual mechanism of breakdown in solid dielectric is ________breakdown.