I just built my Genset 25kva (3 phase 400V) (NG), need to setup an ATS system with 3 phase using contactors. I think I need to use 2 x 2 pole contactors for 4 wire 3 phase.
Here's what I need,
3 phase (4 pole) Auto Transfer swith (230 volts per phase 50Hz, 400V 3 Phase System)
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1. Genset Auto start if Main grid is de-energized for say 30ses
2. Switch from main to Generator Backup power when stable power receives from Genset.
3. When main power is back, lets say stable for 10 ses then first transfer back to main and then send stop signal to generator.
4. Also need one more option if Generator fails to start switch back to main power and do nothing.
5. Generator is on NG (Natural Gas) so it sometimes need longer self to start. Like 5 to 10 secs
I will be very gratefull if anyone help me with complete diagram and parts list.
P.S we dont have readymade ATS pannels available in our country.
Here's what I need,
3 phase (4 pole) Auto Transfer swith (230 volts per phase 50Hz, 400V 3 Phase System)
------------------------------------------------------------------------------------
1. Genset Auto start if Main grid is de-energized for say 30ses
2. Switch from main to Generator Backup power when stable power receives from Genset.
3. When main power is back, lets say stable for 10 ses then first transfer back to main and then send stop signal to generator.
4. Also need one more option if Generator fails to start switch back to main power and do nothing.
5. Generator is on NG (Natural Gas) so it sometimes need longer self to start. Like 5 to 10 secs
I will be very gratefull if anyone help me with complete diagram and parts list.
P.S we dont have readymade ATS pannels available in our country.