There is an electrical supply configuration called bi-phase. It is made of a common neutral and two phases of 120V but with phase shift of 120 degrees. There is a total voltage of 208V between the two phases that can be used to supply 208V loads.
This system is done with 2 xtenders 120V to have a 208V at the output. To the AC-input a biphase system must be applied. They are wired as follow:
In order to complete the configuration. You must
- Adjust Phase Selection Jumper in each xtender:
- xtender 1: L1
- xtender 2: L2 (L2 with 120 degrees phaseshift)
- Adjust parameters with rcc:
- “Inverter frequency” {1112}: 60Hz
- 3-phase integral mode {1283}. NO. If this parameter is enable, the system is checking for a 3-phase system and if a phase is missing, then the system does not work.