Main power contacts condition

Insulation resistance and earth continuity

MCB connection

Filter and cooling fan

Reduces power cost

Assured over loading

Ensure safety to the machine and operators

Helps continuos operation

Earth fault

Open circuit

Short circuit

High value series resistance fault

To measure more quantity

To extend the range

To use as a earth tester

To get accurate reading

Earth tester

Ohm meter

Megger

Wheatstone bridge