Autostat

Output transformer

Over voltage relay

Under voltage relay

Increase

Decrease

Becomes zero

Remain same

6 V and 24 AH

3 V and 16 AH

4.5 V and 8 AH

1.5 V and 32 AH

Geyser

Grinder

Television

Pump motor

Converts A.C voltage into D.C voltage

Converts D.C voltage into A.C voltage

Converts D.C voltage into higher D.C voltage

Converts A.C voltage into higher A.C voltage