ECN Electrical Forum - Discussion Forums for Electricians, Inspectors and Related Professionals
ECN Shout Chat
ShoutChat
Recent Posts
Do You Wrap Your Receptacles?
by gfretwell - 02/20/24 10:48 PM
Cable Chase Code Requirement
by renosteinke - 02/16/24 07:00 PM
Do we need grounding?
by gfretwell - 02/16/24 10:37 AM
Cordless Tools: The Obvious Question
by gfretwell - 02/08/24 07:28 AM
Is this really a thing
by renosteinke - 02/07/24 01:15 PM
New in the Gallery:
This is a new one
This is a new one
by timmp, September 24
Few pics I found
Few pics I found
by timmp, August 15
Who's Online Now
1 members (Scott35), 38 guests, and 21 robots.
Key: Admin, Global Mod, Mod
Previous Thread
Next Thread
Print Thread
Rate Thread
#127386 06/18/01 07:24 PM
Joined: Oct 2000
Posts: 2,723
Likes: 1
Scott35 Online Happy OP
Broom Pusher and
Member
[Linked Image]

Here's another Isolated Transformer, connected as an Autotransformer - in this case, the connections are Series Subtractive - making it a voltage "Bucking" transformer.
The schematic "Boost Transformer" is very similar, except the connections are made in Series Additive format.
BTW: The "Buck" transformer is a mirrored image of the "Boost", the inputs and outputs are reversed.

FYI: The "PHI" symbol on each schematic represents positions of phase polarity [direction of magnetic flow in core as to direction of currents in windings]. That's the key issue of how and why these Autotransformers [connected as Autotransformers] can do the Buck / Boost thingee [technically speaking [Linked Image]]

Any comments??? [Linked Image]

Scott SET

Scott,

You forgot the // in the link. I took care of it.

Bill

[This message has been edited by Webmaster (edited 06-18-2001).]


Scott " 35 " Thompson
Just Say NO To Green Eggs And Ham!
Stay up to Code with the Latest NEC:


>> 2023 NEC & Related Reference & Exam Prep
2023 NEC & Related Reference & Study Guides

Pass Your Exam the FIRST TIME with the Latest NEC & Exam Prep

>> 2020 NEC & Related Reference & Study Guides
 

A
Anonymous
Unregistered
>The "phi" symbol on each schematic represents positions of phase polarity [direction of magnetic flow in core as to direction of currents in windings].
I would like to see the ΓΈ symbol added to the appropriate poles on the single phase transformer diagram you previously posted.

Could you help me out with this?

Joined: Oct 2000
Posts: 2,723
Likes: 1
Scott35 Online Happy OP
Broom Pusher and
Member
Dspark,

I'll add them, then resubmit to the existing topic[s] under the same names/message bodies.

Scott SET


Scott " 35 " Thompson
Just Say NO To Green Eggs And Ham!

Link Copied to Clipboard
Featured:

Tools for Electricians
Tools for Electricians
 

* * * * * * *
2023 National Electrical Code (NEC)
2023 NEC + Exam Prep Study Guides Now Available!
 
* * * * * * *

2020 Master Electrician Exam Preparation Combos
2020 NEC Electrician
Exam Prep Combos:
Master / Journeyman

 

Member Spotlight
Attic Rat
Attic Rat
Bergen Co.,N.J. USA
Posts: 524
Joined: December 2003
Top Posters(30 Days)
maxecn 5
Admin 3
Popular Topics(Views)
317,848 Are you busy
242,682 Re: Forum
226,713 Need opinion
Powered by UBB.threads™ PHP Forum Software 7.7.5