@waross, Can you further explain the following part of your response: "the wye point voltage rises to 1.73 of line to line voltage." So for a 600V 3p, 3 wire system, the wye point voltage would be 600*1.73 = 1038V? Is this what you are saying?
@dpc, Sorry about the confusion... I tried to be too smart with my question by trying to distinguish between line and phase voltages..
So my understanding is this: during a L-G fault in an HRG system, the load is obviously still connected line-line, the line-line voltages remain at nominal, and...
Yeah, I looked on I-Gard's website prior to posting my question... I thought of posing a question to their blog, but figured I'd come here first. Your attachment is informative, as is the data on their site, but it doesn't answer my question...
I think this is a simple question, but I can't find any references to determine the answer... perhaps my Blackburn textbook would help... Here goes:
In a low voltage 600/346VAC, 3ph, 3w, high-resistance grounded system, what are the line voltages and line currents during a line-ground fault, in...
Ok... here's what I'm confronted with:
1. Multiple installations (utility, industrial) of low voltage HRG systems with no dedicated EGCs run with the phase conductors.
2. The NEC which does not require dedicated EGCs run with the phase conductors.
AND
3. The IEEE Red Book which states that a...
I've searched the threads and found nothing on this topic, so forgive me if its been asked before.
Is it necessary to run an equipment grounding conductor with the phase conductors in a low voltage high resistance grounded system assuming that all conduits/trays are electrically continuous...
