DaveKamp
Titanium
- Joined
- Oct 3, 2004
- Location
- LeClaire, Ia
Hi All-
Recently, I got some inquiries about conversion of the Miller CP-series that are set up for 200/230/460v 3 phase.
If you've read the threads on my conversions of the 230/460v versions of the CP-200, you'll note that there's wiring on the primary side (phasing and capacitors) as well as the secondary (changing it from delta output to wye). This is because the CP-series is Y input, and the wiring on the primary side nullifies the Y... it drives the coils... which are expecting 277v... at 240v. By switching the delta output to Y, it brings up the secondary side the exact same ratio as lost at the input.
Later models... particularly CP-300 and CP-302 frequently appear with taps for 200v, as well as 230/460.
Where a 200v Y input exists, a different choice of input tapping makes it a perfect candidate, and at same time, no secondary modification is required.
It has already been tested with Ari's CP-300, and will be tested on Vern's CP-302 in the near future.
Stand by for details!
Recently, I got some inquiries about conversion of the Miller CP-series that are set up for 200/230/460v 3 phase.
If you've read the threads on my conversions of the 230/460v versions of the CP-200, you'll note that there's wiring on the primary side (phasing and capacitors) as well as the secondary (changing it from delta output to wye). This is because the CP-series is Y input, and the wiring on the primary side nullifies the Y... it drives the coils... which are expecting 277v... at 240v. By switching the delta output to Y, it brings up the secondary side the exact same ratio as lost at the input.
Later models... particularly CP-300 and CP-302 frequently appear with taps for 200v, as well as 230/460.
Where a 200v Y input exists, a different choice of input tapping makes it a perfect candidate, and at same time, no secondary modification is required.
It has already been tested with Ari's CP-300, and will be tested on Vern's CP-302 in the near future.
Stand by for details!