3ph 220v to 380v
3ph 220v to 380v
(OP)
Hello
A very old 37.5kva GM generator with Markon alternator. It gives 3ph 220 volt with manual voltage regulator (external auto transform)
Please see the pictures.
I would like to convert the system to be 3ph 400v but the connection of alternator terminals look confusing
Can any check the pictures and tell me weather it’s double star or delta and what are the other connections
A very old 37.5kva GM generator with Markon alternator. It gives 3ph 220 volt with manual voltage regulator (external auto transform)
Please see the pictures.
I would like to convert the system to be 3ph 400v but the connection of alternator terminals look confusing
Can any check the pictures and tell me weather it’s double star or delta and what are the other connections
RE: 3ph 220v to 380v
Can you take a picture of the name-plate? The connection ( for different voltage output) may be shown on the name-plate.
Che Kuan Yau (Singapore)
RE: 3ph 220v to 380v
This is the name plat
RE: 3ph 220v to 380v
" We are all here on earth to help others; what on earth the others are here for I don't know." -- W. H. Auden
RE: 3ph 220v to 380v
"...A very old 37.5kva GM generator with Markon alternator. #1. It gives 3ph 220 volt with manual voltage regulator (external auto transform)....#2. I would like to convert the system to be 3ph 400v but the connection .... This is the name plat..".
#1. The name plate shows it is a Single-phase 120/240V alternator. I don't understand how can " it gives 3ph 220V with manual voltage regulator ....." .
#2. If you are having 3ph 220V but wish to be 3ph 400V, a simple way is to add a 3ph 220/400V step up transformer. Connect the 220V to the 220V input terminal. You get 400V on the output.
FYI: Usually we use step down transformer. This is the same transformer where the 220V is connected on the 220V terminal. You will get 400V on the 400V terminal. That is to say, any transformer can be a step up or a step down transformer.
Che Kuan Yau (Singapore)
RE: 3ph 220v to 380v
RE: 3ph 220v to 380v
Hi Emadshaaban1987,
As the other colleagues say, it is a Single-Phase generator. See attached file. These alternators won´t work with three-phase loads.
Best Regards
Petronila
RE: 3ph 220v to 380v
Muthu
www.edison.co.in
RE: 3ph 220v to 380v