[Prev][Next][Index][Thread]

Re: Phasing Microwave Xfrmrs 120 and 220




From: 	Esondrmn-at-aol-dot-com[SMTP:Esondrmn-at-aol-dot-com]
Sent: 	Monday, October 27, 1997 7:17 AM
To: 	tesla-at-pupman-dot-com
Subject: 	Re: Phasing Microwave Xfrmrs 120 and 220

In a message dated 97-10-26 09:59:14 EST, you write:

<< 
 Assume 120 v primaries. Here is the rule:
 For 220 operation put primaries in anti-series. For 120 operation, put
 primaries in anti-parallel. In EITHER case, wire secondary cores together
and
 to ground, and now free secondary ends are out of phase and producing the
 DOUBLE output you desire.
 
 Fr. Tom McGahee
  >>

Fr. Tom,

I find your use of terminology interesting and a bit confusing.  If you mean
parallel, why not say parallel instead of anti-series?  For a series
connection, you say anti-parallel - if I understand what you are saying.  I
started my first electronics training in 1966 and never learned this
terminology - in fact I don't think I have heard it used until I joined this
list.  You are not the only one who uses it either.  Is this method supposed
to be more descriptive, or am I missing something?

For 220 volt operation, the 120 volt primaries should be wired in series and
phased so the secondaries are out of phase with the cases tied together.  For
120 volt operation, the primaries should be connected in parallel, again
phased properly.

Ed Sonderman