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DOL abbreviation stands for ?

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electricpete

Electrical
May 4, 2001
16,774
I know what DOL means. But what do those letters stand for?

"Direct On Line" ?

It seems like any time I have heard it spoken I hear Direct Across the Line.

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Yeah I think the abreviation is a lousy one. I have NEVER heard anyone say Direct-On-Line. It doesn't even make sense really because "Direct-On-Line" is so nebulous and vague. But I hear the term Direct-Across-<the>Line all the time.
 
DOL is indeed direct on-line. But it isn't used much in USA, at least in my experience. Old-timers (like me) will say "across-the-line" and NEMA terminology is simply Full Voltage, or FV. Similar to "on-load tap changer", which in the US is generally just "load tap changer" or LTC. Or maybe it's regional. In the eastern US, they wait on-line, but in the rest of the US we wait in line.



 
I always referred that acronym as "Direct On Line".
Certainly I will prefer something like “Starting at full voltage” as opposed to “Starting with reduced voltage”.
 
Interesting observations dpc.

It probably aught to be FVS (Full Voltage Start) which I think is very clear.

I'm going to go make my sang-gah-witch now....

:)
 
itsmoked

aught? ought or should.

Bet we could do this all day! Nevermind.
See ya back at the Pub sometime.
Regards
pennpoint
 
Hmmm... I thought all this time it meant Dirty Old Lecher. No wonder I'm so confused.

Semi-seriously though, in the UK and other NNAESC (Non-North American English Speaking Countries), DOL is short for Direct-On-Line, meaning that the motor is connected directly onto the line power (I don't see why that is confusing). In North America, we have traditionally used the term Across-the-Line, sometimes abbreviated ATL, meaning that the motor is connected directly to (or across) the line as well, which in my opinion is actually more confusing. I have never heard Direct-Across-(or Ocross)-the-Line, that's probably a mixture of the 2 terms, or just silly.

"Our virtues and our failings are inseparable, like force and matter. When they separate, man is no more."
Nikola Tesla

 
Ocross was being silly...

IRstuff thanks for help with pennpoint's zing!

ought2 ( P ) Pronunciation Key (ôt)
pron. & adv.
Variant of aught.

[pipe]

 
Thanks guys. I guess I should have known that. At least it wasn't all for naught - an entertaining post.

O.E. nawiht "nothing," lit "no whit," from na "no" (from PIE base *ne- "no, not;" see un- (1)) + wiht "thing, creature, being" (see wight).

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Well, if I could have gotten to this a few postings ago, I would have suggested that the "proper" term would be FVNR (Full Voltage, Non Reversing). But in the mean time, this whole thread has slide so far down hill that I don't think I should bother now. ;-)
 
Actually, FVNR (and it's sister FVR) only refers to the motor starter designation, Across-the-Line or DOL does not qualify as to the rotation direction, it is refering to the motor being connected directly to the line power, as opposed to having a reduced voltage of some means.

"Our virtues and our failings are inseparable, like force and matter. When they separate, man is no more."
Nikola Tesla

 
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