engineering recuitment JVVNL Technical Helper 2022 Mock Test Electrician and Wireman Electrical Machines Transformers
A conservator used in a transformer consists of-
1
An air - tight metallic drum fixed at the top of the oil - tank
2
An air - tight metallic drum fixed at the bottom of the oil - tank
3
Overload protection device
4
Underload protection device
5
None of these