Battery unit

Inverter unit

Rectifier unit

Controller unit

Buckling

Polarization

Local action

Amalgamation

Fault in inverter circuit

Battery is short circuited

Mains earthing is not proper

Ampere hour (A.H) capacity of battery is not sufficient

Battery get short circuited

Defective feedback circuit

Input voltage is very high

Relay points are joined together

Main supply failure

Incorrect over load settings

Battery charger input fuse blown out

Loose connection in battery terminal