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Re: Just for your information .....

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Phil Allison wrote on 6/1/24 1:41 pm:

<Snip>

> **  In order for a solar system to power a premises during a
> blackout, the AC supply line must be disconnected first. Otherwise
> the solar system will try to power the whole neighborhood and also
> electrify cables that are expected to be dead by electrical workers.

AH!! Brings back 'fond' memories!!

I was in the Army for twenty years, in R.A.Signals. At one time, maybe 
late 70's, I was at the H.F. Transmitter Station at Digger's Rest, Victoria.

One evening, the Mains died, so one of three 300KVA Blackstone Diesels 
started up, as it should, but the lights, etc., were cycling on and off, 
on and off.

As were the lights, etc., in the homes at Diggers Rest.

Seems, rather than losing the three phase mains, we had lost the Neutral 
line, so the Generator started up as it "should" .... but, with-out the 
Neutral to reference, the Phase Voltages were wandering all over the place.

And the Three Phase supply hadn't been 'lost', so the Mains CCT Breakers 
hadn't dropped out, so the Army Camp was trying to supply "wobbly" three 
phase power out into the real world.

Opps!!

-- 
Daniel

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Just for your information ..... Daniel65 <daniel47@nomail.afraid.org> - 2024-01-05 19:20 +1100
  Re: Just for your information ..... Sylvia Else <sylvia@email.invalid> - 2024-01-05 20:20 +1100
    Re: Just for your information ..... Daniel65 <daniel47@nomail.afraid.org> - 2024-01-05 23:46 +1100
  Re: Just for your information ..... Phil Allison <pallison49@gmail.com> - 2024-01-05 18:41 -0800
    Re: Just for your information ..... Daniel65 <daniel47@nomail.afraid.org> - 2024-01-06 20:37 +1100
  Re: Just for your information ..... not@telling.you.invalid (Computer Nerd Kev) - 2024-01-06 16:01 +1000

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