DaveE's latest activity

This!!! RCD/GFCI should not be used as primary protection. They are an additional safety feature which simply isn't as reliable as good...

The point was that this sort of thing happens "in the wild". The real world example I gave did not have the conduit or switch box...

@gen x the link you proved in post #12 makes sense. The user named transistor is basically correct although I will say that a fault the...

When I was a grad student teaching assistant in the early 1990's, I assigned a design problem for the gears and bearings class. The...

Also, note that isolation transformers aren't just your run of mill transformer. They will (should) have appropriate construction with...

Isolated/floating systems are also used in places where a fault would otherwise trip a breaker and the loss of power would cause a large...

Isolated systems are used for safety on construction sites etc. A transformer is used where the secondary is not connected to earth. A...

It works better if you search for knowledge, not just answers. But kudos for recognizing that you must verify the information you find...

Because a common ground connection protects the insulation, by preventing overvoltage, that might break it down.

Perhaps a better schematic would help:

The voltage at B wrt A is ##(V_B-V_A) \equiv V_{BA}=E_1-E_2-2IR=0## The current arrow drawn is an arbitrary polarity definition, so...

google, dude. It works great... https://staleyelectric.com/understanding-electrical-grounding-and-how-it-works/...

It comes down to the two different meanings of the term "vector", which in computing, can refer to both a 1D array of many elements, or...

I'm no expert, but it's basically vector/matrix operations. MAC (multiply-accumulate) and inversion operations are the common...

Thank you very much for the suggestion. I will go through these. It's been very touching seeing the effect he had on this community by...