I know that 110 and 220 volts are available in a three phase installation what other voltage is normally available in the installation? I'm getting mix up with 500 and 400 volts.
Dear Mr. Lecto ;
You know that we have multi kind of supply that are :
– Single Phase + Neutral for 127V ( accordingly to the kind of source )
– Single Phase + Neutral for 220V ( accordingly to the kind of source )
– 3 phases + Neutral for : 127/220V that means : 127 between any phase & neutral, 220 between any 2 phases
– 3 phases + Neutral for : 231/400V that means : 231 between any phase & neutral, 400 between any 2 phases
So, you should know the kind of your network.
Beside, we can , accordingly to the kind of loads, mix 2 kinds of network, but we should be carful.