Thanks for that info, Bill.
The aim here is to be able to use a particular PDU designed for 208v Delta (and not available in Wye).
The Siemens modular power busses we're using already deliver 208v/3ph Wye. Trying to figure out how to adapt those to deliver Delta.
We used to have equipment that...
We don't plan to mix wye and delta circuits - only to take a 4-wire wye circuit and make it a 208v delta by eliminating the neutral.
There is a ground present.
I'm told faults are handled by co-ordinated breakers: initially on the PDU itself (per phase), then at the buss drop cable to the PDU...
Power to our computer room servers is delivered on 208V/3ph/Wye overhead busses to IEC 60309 connectors on drop cables.
In-cabinet Wye PDUs connect to those.
To ease the transition to a new type of PDU, we plan to add more connections to the busses using an IEC 60309 Delta drop cable.
All...
