Return to KLUBNL.PL main page

rsgb_lf_group
[Top] [All Lists]

LF: Re: RE: 3 phase ripple

To: [email protected]
Subject: LF: Re: RE: 3 phase ripple
From: "Tenty" <[email protected]>
Date: Wed, 27 Jun 2001 02:10:24 +0100
Organization: Holland Data and Wireless
References: <[email protected]>
Reply-to: [email protected]
Sender: <[email protected]>
We have 120 V, not 110 V..

Normal houses don't have 3 phases here as we have a very old fashion
electricity system...:=(

Every standard house here has 120 and 240 V (two phases)...

120 V (+90 degrees) <------------ 0 (neutral) --------------> 120 V (-90 
degrees)

So 180 degree difference

The 240 V is for our electric ranges ..and maybe a  linear :=)

Only factories (in an industrial area) and large buildings have 3 phases
Some small factories outside the cities convert from two to three
phases to run their machines on..

I think your can make  2x1.41x120 =  338 V dc but I don't want to risk
my life by not using a safety transformer!

Was I confused when I arrived  here :=)

Bob,  ve3tok

However, US and Canadian stations with their 110V mains (supplied as
effectively 6 phases - 3 phase with plus / minus each plus centre tap /
ground, seven wires in total, if I understand it correctly based on looking
at pictures of power cables in US towns) would result in a 270 V rail so,
much more realistic and safe using low cost 500V devices.
Andy G4JNT



-----Original Message-----
From: John Rabson [mailto:[email protected]]
Sent: 2001-06-25 19:05
To: [email protected]
Subject: LF: 3 phase ripple (was Re: Re: RE: LX1PD)


Sorry, I meant rms.

For a  3 phase full wave bridge

RMS ripple/mean OP = 4.2%
(Ref Data for Radio Engs 5th ed p 13-5)

73 de
John Rabson G3PAI




--
The Information contained in this E-Mail and any subsequent correspondence
is private and is intended solely for the intended recipient(s).
For those other than the recipient any disclosure, copying, distribution, or any action taken or omitted to be taken in reliance on such information is
prohibited and may be unlawful.





<Prev in Thread] Current Thread [Next in Thread>