DeepSea Posted May 16, 2013 Share Posted May 16, 2013 Can any electricians out there tell me which of the following electrical supply systems are in use in Thailand please... 380 V 3Ø 50 Hz (5 wires - 3Ø + N + E) 230 V 1Ø 50 Hz (3 wires - 1Ø + N + E) 220 V 2Ø 50 Hz (3 wires - 2Ø + E) 110 V 3Ø 50 Hz (4 wires - 3Ø + E) I know the voltage here is supposed to be 220/380, but I have often seen the voltage climbing above 400v thanks in advance... Link to comment Share on other sites More sharing options...
Crossy Posted May 16, 2013 Share Posted May 16, 2013 380 V 3Ø 50 Hz (5 wires - 3Ø + N + E) 230 V 1Ø 50 Hz (3 wires - 1Ø + N + E) Normally E is not counted as a 'wire' as it's not a current carrying conductor, so we have: 220 V 1Ø 50 Hz 2 wires - (1Ø + N) and 380 V 3Ø 50 Hz 4 wires - (3Ø + N) i.e. we have a Y system with 220V phase-neutral and 380V phase-phase (roughly) Nominally the supply is +-10% so we could see 198-242 and 342-418, 400V phase-phase (+5%) is just fine NOTE There are a few villages that are 3-phase 3-wire 220V phase-phase but they do seem to be the exception and in remote areas. Link to comment Share on other sites More sharing options...
DeepSea Posted May 16, 2013 Author Share Posted May 16, 2013 Hi Crossy, Thank you for taking the time to answer my question, much appreciated... Link to comment Share on other sites More sharing options...
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now