As you know that we start from the basic steps. In this post, I am writing about 3 phase manual changeover switch wiring diagram or three phases manual transfer switch wiring diagram. As you know that I already published a post and diagram about the manual changeover switch wiring diagram (single-phase) with complete installation and wiring connection method. In Today’s post, I am here to write and share a diagram about the three-phase manual changeover switch wiring diagram and its installation with incoming supply from the main supply, incoming supply from the 3 phase generator, and outgoing supply to the three-phase load. Note that this diagram is about the manual handle type change over switch and IN SHA ALLAH soon I will make a diagram about the rotary type change over switch wiring diagram for single phase, three phases, and three-phase four-wire system.
3-Phase Manual Changeover Switch Wiring Diagram For Generator With Complete Installation Guide
The 3-phase manual changeover switch wiring diagram is a too simple and easy connection. For better understanding kindly read the below single phase handle type manual transfer switch post.
The three-phase changeover wiring connection and installation is too simple and easy as I showed in the below diagram. In the below diagram, I show the incoming 3 lines of supply wires with reading red, yellow, and blue colour. The neutral I showed with black colour but the neutral is not used in the three-phase manual transfer or changeover switch.
The main supply is connected to the switch’s upper input supply terminals. And the generator supply is connected to the bottom- input terminals or connection points of the transfer switch as I showed in the below diagram. The output supply is going to load from output connection points or terminals.
I have shown the load as three phase induction motor. One thing more if we move the switch handle upper side, the main supply will go to the load. When we move the transfer switch handle to the centre, the switch will be on OFF mode. And when we required the generator emergency supply for the load then we move the changeover handle to the bottom side.
(Note that this type of switch we use in our country, maybe type or shape will be different as I have shown in the diagram but the reason- for publishing this post is to teach you about the basic working principles- of a transfer or three-phase manual changeover switch)
I hope after the above 3-phase manual changeover switch wiring diagram, now you will be completely understood. However, you can ask your question according to this diagram or post then you can use the below commenting system.