The power requirements are as follows:
3NPE 400/230 V +/- 10%, 50/60 Hz;
8 kVA
16 A time-delay fuses
After considering all of your helpful input, I’ve decided to purchase a 9 kVA 1:1 delta-to-wye transformer which I will attach to the side of my existing floor standing autotransformer. I will...
As requested, I have posted a wiring diagram and I'm glad I did as I find that I need 400 Volts instead of 277 (I mistakenly thought my x-ray system would adapt to anything between 400 and 230). Therefore, my question to all of you has changed since my autotransformer is useless.
Given that I...
I understand that the line-line on a wye is the square root of 3 times the line-neutral.
What I have for a source is a fused safety switch box on the wall of a laboratory. There are four wires in that box, the biggest of which is the safety ground. This box is about 30 meters from the...
I need to reduce the voltage from 480 to 277. I can't get this directly from the delta service. Therefore, I need something to reduce the voltage.
I'm concerned that using the autotransformer will violate some codes because the delta service has no fixed ground. If I use the autotransformer I...
I need to power a x-ray generator from a 480 delta service. The generator needs 277 wye. I happen to have a 3-phase autotransformer with the proper taps.
Can I use the autotransformer with the center tied to safety ground; or, should I buy a delta-to-wye transformer and connect the neutral of...
