VFD WITH STAR DELTA STARTER CONNECTION TO CHANGE OVER SWITCH

VFD WITH STAR DELTA STARTER CONNECTION TO CHANGE OVER SWITCH

ON Load Changeover :

On load, the changeover is the one that changes the load from one source of supply to the other source of supply while the load is connected which means that load will immediately draw current as soon as it is connected to another source.

                                                                            OFF Load Changeover :

This is the type of changeover in which the time delay is provided with the help of the unit so that after changeover between supplies load is connected to another source of supply after a particular time delay. This is the better-preferred method as it avoids surges or sparking which can occur due to sudden connection of load after the changeover.

CHANG OVER SWITCH

When the handle is position 2

Shorted Upper side to the terminals

When the handle is position 0

Internal Shorted disconect

 

When the handle is position 1

Shorted lower side to the terminals