engineering recuitment RVUNL JEn (RSEB) Mock Tests 2025 Electrical and Electronics Measurements Indicating Instruments Electro Dynamometer Type Instruments
Electro dynamometer type of instruments are enclosed in a casing made up of high permeability material to:
1
To remove electrostatic effects.
2
To provide mechanical strength to the coils present.
3
To protect against external magnetic fields.
4
Provide good damping
5
To provide deflecting torque