State any one application of each tool : (i) Earth tester (ii) Megger (iii) Bearing puller (iv) Growler 
in Testing and maintenance of electrical equipments by

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i) Earth Tester :- It is used to measure earth resistance. 


ii) Megger :- Megger is used to find out (measure) insulation resistance of electrical machine/equipment. 


iii) Bearing Puller:- Bearing puller is used for holding and removing the parts such as bearings, gears or pulleys from a shaft safely. 


iv) Growler:- A growler is an electrical device used to find out shorted turn faults in armature winding and stator winding of motor.

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