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#148672 - 02/24/02 03:56 AM 2 Phase Transformer Schematics These Schematics have been brought over from the "Theory Area" for your convenience. Scott35 Broom Pusher and Member
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Topic: 2 phase 4 wire schematic - last in the series Scott35 Moderator posted 05-11-2001 03:42 AM
This final schematic demonstrates one of the methods of deriving 2 phase systems from a 3 phase source. Notice the 86% tapped coils and the 50% tapped coils. This is known as the "Taylor Method". I know of one other 3 phase closed delta primary to 2 phase 4 wire connection - which uses 3 transformers. It's similar to this, just tap points are swapped around a bit. Shout Box Donovon: I wish everyone happy and safe holidays! Trumpy: Have a good one too, Donovon!! HotLine1: appy & Safe New Year to all. JoeKP: happy new years all. me thinks everyone should pile in the chat! HotLine1: Hello guys, whats happening?? JoeKP: out with the quads today Webmaster: Apparentley ther was a power outage in Utah, where the server is located Mostly the 2 phase setups were done by means of an open delta "Tee" connection for the primary, then the 2 phase 3/4 wire output was also connected in a "Tee" arrangement [AKA Scott - TEE connection. Funny, that name seems oddly familiar to me ]. An open delta Tee connection is done with tapped windings, whereas the more familiar open delta Vee connection is just a closed delta with 2 transformers instead of 3. The outputs here are "Phase 1" [two wires] and "Phase 2" [also a set of two wires]. Between the conductors of a certain Phase, there is a potential [voltage], and each one is a stand-alone phasor [phase]. Phase offset between Phase 1 and Phase 2 is 90 degrees. This is the infamous 2 phase system - which a simple 1 phase system gets mistakenly quoted as being
Scott SET - the bringer of antiquated AC power systems my edit is towards incorrect labels on phases - only noticed after posting [This message has been edited by Scott35 (edited 05-11-2001).]
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2 Phase 4 Wire "Tee" Connections. Related Text From Original Post
Topic: 2 phase xformer detail 1
http://www.electrical-contractor.net/forums/ubbthreads.php/topics/148672/2_Phase_T... 17/03/2013
2 Phase Transformer Schematics - ECN Electrical Forums
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Scott35 Moderator posted 05-18-2001 09:37 PM
Here's a 2 phase 4 wire "Tee" connection, using two transformers and powered by an open delta Tee 3 phase primary connection. Scott SET
2 Phase 3 Wire "Tee" Connections. Related Text From Original Post
Topic: 2 phase xformer detail 2 Scott35 Moderator posted 05-18-2001 09:41 PM Here's another 2 phase setup, just this one is a 3 wire connection. The common conductor is grounded in this schematic. Pictorials show what the legend schematics would look like and how they connect to make this arrangement. Once again, this is via a 3 phase open delta Tee connected primary. Scott SET ------end-----_________________________ Scott " 35 " Thompson Just Say NO To Green Eggs And Ham!
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#148672 - 02/24/02 03:56 AM 2 Phase Transformer Schematics These Schematics have been brought over from the "Theory Area" for your convenience. Scott35 Broom Pusher and Member
Live Electrical Chat >> Enter/Register
Recent Posts Surge protection
by Lostazhell
Registered: 10/19/00 Posts: 2610 Loc: Anaheim, CA. USA
Yesterday at 07:58 PM
Strange HV line..
by Hemingray
Yesterday at 02:25 PM
Travel Time for employees
by wewire2
Yesterday at 02:05 PM
Untimely Demise
by twh
2 Phase 4 Wire Transformer Connection. Related Text From Original Post
Yesterday at 11:40 AM
GM Pro Package cargo van
by gfretwell
03/15/13 10:58 PM
New in the Gallery:
Topic: 2 phase 4 wire schematic - last in the series Scott35 Moderator posted 05-11-2001 03:42 AM
This final schematic demonstrates one of the methods of deriving 2 phase systems from a 3 phase source. Notice the 86% tapped coils and the 50% tapped coils. This is known as the "Taylor Method". I know of one other 3 phase closed delta primary to 2 phase 4 wire connection - which uses 3 transformers. It's similar to this, just tap points are swapped around a bit. Shout Box Donovon: I wish everyone happy and safe holidays! Trumpy: Have a good one too, Donovon!! HotLine1: appy & Safe New Year to all. JoeKP: happy new years all. me thinks everyone should pile in the chat! HotLine1: Hello guys, whats happening?? JoeKP: out with the quads today Webmaster: Apparentley ther was a power outage in Utah, where the server is located Mostly the 2 phase setups were done by means of an open delta "Tee" connection for the primary, then the 2 phase 3/4 wire output was also connected in a "Tee" arrangement [AKA Scott - TEE connection. Funny, that name seems oddly familiar to me ]. An open delta Tee connection is done with tapped windings, whereas the more familiar open delta Vee connection is just a closed delta with 2 transformers instead of 3. The outputs here are "Phase 1" [two wires] and "Phase 2" [also a set of two wires]. Between the conductors of a certain Phase, there is a potential [voltage], and each one is a stand-alone phasor [phase]. Phase offset between Phase 1 and Phase 2 is 90 degrees. This is the infamous 2 phase system - which a simple 1 phase system gets mistakenly quoted as being
Scott SET - the bringer of antiquated AC power systems my edit is towards incorrect labels on phases - only noticed after posting [This message has been edited by Scott35 (edited 05-11-2001).]
Shout
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2 Phase 4 Wire "Tee" Connections. Related Text From Original Post
Topic: 2 phase xformer detail 1
http://www.electrical-contractor.net/forums/ubbthreads.php/topics/148672/2_Phase_T... 17/03/2013
2 Phase Transformer Schematics - ECN Electrical Forums
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Scott35 Moderator posted 05-18-2001 09:37 PM
Here's a 2 phase 4 wire "Tee" connection, using two transformers and powered by an open delta Tee 3 phase primary connection. Scott SET
2 Phase 3 Wire "Tee" Connections. Related Text From Original Post
Topic: 2 phase xformer detail 2 Scott35 Moderator posted 05-18-2001 09:41 PM Here's another 2 phase setup, just this one is a 3 wire connection. The common conductor is grounded in this schematic. Pictorials show what the legend schematics would look like and how they connect to make this arrangement. Once again, this is via a 3 phase open delta Tee connected primary. Scott SET ------end-----_________________________ Scott " 35 " Thompson Just Say NO To Green Eggs And Ham!
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