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Single Phase Electrical Connections


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Home > Products > Transformers > General Purpose Transformers> 
Single Phase Electrical Connections

Single Phase Electrical Connections

A printable version of the following section is available by selecting the pdf file to the left.

Connection 1

240 x 480 Volt Primary, 120/240 Volt Secondary, Taps: None

conn1.jpg (6393 bytes)

Primary Voltage

Interconnect

Connect Lines To
480 H2 to H3 H1 & H4
240 H1 to H3
H2 to H4		 H1 & H4

Secondary Voltage

Interconnect

Connect Lines To
240 X2 to X3 X1 & X4
120 X1 to X3
X2 to X4		 X1 & X4
120-0-120 X2 to X3
X2 to 		X1-X2-X4

 

Connection 2 Top

240 x 480 Volt Primary, 120/240 Volt Secondary, Taps: None

conn2.jpg (7875 bytes)

Primary Voltage

Interconnect

Connect Lines To
480 H2 to H3 H1 & H4
240 H1 to H3
H2 to H4		 H1 & H4

Secondary Voltage

Interconnect

Connect Lines To
240 X2 to X3 X1 & X4
120-0-120 X2 to X3
X2 to 		X1-X2-X4
120 X1 to X3
X2 to X4		 X1 & X4

 

Connection 3 Top

240 x 480 Volt Primary, 120/240 Volt Secondary, Taps: 2, 2½% FCAN & FCBN

Primary 
Voltage

Interconnect

Connect 
Lines To
504 H4 to H5 H1 & H8
492 H3 to H5 H1 & H8
480 H3 to H6 H1 & H8
468 H2 to H6 H1 & H8
456 H2 to H7 H1 & H8
252 H1 to H5
H4 to H8		 H1 & H8
240 H1 to H6
H3 to H8		 H1 & H8
228 H1 to H7
H2 to H8		 H1 & H8

Secondary Voltage

Interconnect

Connect 
Lines To
240 X2 to X3 X1 & X4
120-0-120 X2 to X3
X2 to 		X1-X2-X4
120 X1 to X3
X2 to X4		 X1 & X4

 

Connection 4 Top

240 x 480 Volt Primary, 120/240 Volt Secondary, Taps: 2, 2½% FCAN;  4, 2½% FCBN

Conn4.jpg (10840 bytes)

Primary 
Voltage

Interconnect

Connect 
Lines To
504 H5 to H6 H1 & H10
492 H4 to H6 H1 & H10
480 H4 to H7 H1 & H10
468 H3 to H7 H1 & H10
456 H3 to H8 H1 & H10
444 H2 to H8 H1 & H10
432 H2 to H9 H1 & H10
252 H1 to H6
H5 to H10		 H1 & H10
240 H1 to H7
H4 to H10		 H1 & H10
228 H1 to H8
H3 to H10		 H1 & H10
216 H1 to H9
H2 to H10		 H1 & H10

Secondary Voltage

Interconnect

Connect 
Lines To
240 X2 to X3 X1 & X4
120-0-120 X2 to X3
X2 to 		X1-X2-X4
120 X1 to X3
X2 to X4		 X1 & X4

 

Connection 5 Top

240 x 480 Volt Primary, 120/240 Volt Secondary, Taps: 2, 2½% FCAN;  4, 2½% FCBN

Conn5.jpg (11010 bytes)

Primary 
Voltage

Interconnect

Connect 
Lines To
504 1 to 2 H1 & H2
492 2 to 3 H1 & H2
480 3 to 4 H1 & H2
468 4 to 5 H1 & H2
456 5 to 6 H1 & H2
444 6 to 7 H1 & H2
432 7 to 8 H1 & H2
252 H1 to 2
H2 to 1		 H1 & H2
240 H1 to 4
H2 to 3		 H1 & H2
228 H1 to 6
H2 to 5		 H1 & H2
216 H1 to 8
H2 to 7		 H1 & H2

Secondary Voltage

Interconnect

Connect 
Lines To
240 X2 to X3 X1 & X4
120-0-120 X2 to X3
X2 to 		X1-X2-X4
120 X1 to X3
X2 to X4		 X1 & X4

 

Connection 6 Top

600 Volt Primary, 120/240 Volt Secondary, Taps: None

Conn6.jpg (5287 bytes)

Primary Voltage

Interconnect

Connect Lines To

600   H1 & H2

Secondary Voltage

Interconnect

Connect Lines To

240 X2 to X3 X1 & X4
120-0-120 X2 to X3
X2 to 		X1-X2-X4
120 X1 to X3
X2 to X4		 X1 & X4

 

Connection 7 Top

600 Volt Primary, 120/240 Volt Secondary, Taps: 2, 5% FCBN

Conn7.jpg (9818 bytes)

Primary Voltage

Interconnect

Connect Lines To

600 H3 to H4 H1 & H6
570 H2 to H4 H1 & H6
540 H2 to H5 H1 & H6

Secondary Voltage

Interconnect

Connect Lines To

240 X2 to X3 X1 & X4
120-0-120 X2 to X3
X2 to 		X1-X2-X4
120 X1 to X3
X2 to X4		 X1 & X4

 

Connection 8 Top

600 Volt Primary, 120/240 Volt Secondary, Taps: 2, 2½% FCAN;  4, 2½% FCBN

Conn8.jpg (10893 bytes)

Primary Voltage

Interconnect

Connect Lines To

630 1 to 2 H1 & H2
615 2 to 3 H1 & H2
600 3 to 4 H1 & H2
585 4 to 5 H1 & H2
570 5 to 6 H1 & H2
555 6 to 7 H1 & H2
540 7 to 8 H1 & H2

Secondary Voltage

Interconnect

Connect Lines To

240 X2 to X3 X1 & X4
120-0-120 X2 to X3
X2 to 		X1-X2-X4
120 X1 to X3
X2 to X4		 X1 & X4

 

Connection 9 Top

120/208/240/277 Volt Primary, 120/240 Volt Secondary, Taps: None

Conn9.jpg (9306 bytes)

Primary 
Voltage

Interconnect

Connect 
Lines To

277 H2 to H3 H1 & H6
240 H2 to H3 H1 & H5
208 H2 to H3 H1 & H4
120 H1 to H3
H2 to H5		 H1 & H5

Secondary Voltage

Interconnect

Connect 
Lines To

240 X2 to X3 X1 & X4
120-0-120 X2 to X3
X2 to 		X1-X2-X4
120 X1 to X3
X2 to X4		 X1 & X4 

 

Connection 10 Top

120/208/240/277 Volt Primary, 120/240 Volt Secondary, Taps: None

Conn10.jpg (10166 bytes)

Primary 
Voltage

Interconnect

Connect 
Lines To

277 H4 to H5 H1 & H8
240 H3 to H6 H1 & H8
208 H2 to H7 H1 & H8
120 H1 to H6
H3 to H8		 H1 & H8

Secondary Voltage

Interconnect

Connect 
Lines To

240 X2 to X3 X1 & X4
120-0-120 X2 to X3
X2 to 		X1-X2-X4
120 X1 to X3
X2 to X4		 X1 & X4

 

Connection 11 Top

120/208/240/277 Volt Primary, 120/240 Volt Secondary, Taps: None

Conn11.jpg (10303 bytes)

Primary 
Voltage

Interconnect

Connect 
Lines To

277 1 to 2 H1 & H2
240 3 to 4 H1 & H2
208 5 to 6 H1 & H2
120 H1 to 4
3 to H2		 H1 & H2

Secondary Voltage

Interconnect

Connect 
Lines To

240 X2 to X3 X1 & X4
120-0-120 X2 to X3
X2 to 		X1-X2-X4
120 X1 to X3
X2 to X4		 X1 & X4

 

Connection 12 Top

190/200/208/220/380/400/415/440 Volt Primary, 110/220 Volt Secondary, Taps: None

Conn12.jpg (10185 bytes)

Primary 
Voltage

Interconnect

Connect 
Lines To
440 H5 to H6 H1 & H10
415 H4 to H6 H1 & H9
400 H3 to H6 H1 & H8
380 H2 to H6 H1 & H7
220 H1 to H6
H5 to H10		 H1 & H10
208 H1 to H6
H4 to H9		 H1 & H9
200 H1 to H6
H3 to H8		 H1 & H8
190 H1 to H6
H2 to H7		 H1 & H7

Secondary Voltage

Interconnect

Connect 
Lines To
220 X2 to X3 X1 & X4
110/220 X2 to X3 X1, X2 & X4
110 X1 to X3
X2 to X4		 X1 & X4

 

Connection 13 Top

190/200/208/220/380/400/415/440 Volt Primary, 110/220 Volt Secondary, Taps: None

Conn13.jpg (10640 bytes)

Primary 
Voltage

Interconnect

Connect 
Lines To
440 H5-H6 H1 & H10
415 H4-H7 H1 & H10
400 H3-H8 H1 & H10
380 H2-H9 H1 & H10
220 H1-H6, H5-H10 H1 & H10
208 H1-H7, H4-H10 H1 & H10
200 H1-H8, H3-H10 H1 & H10
190 H1-H9, H2-H10 H1 & H10

Secondary Voltage

Interconnect

Connect 
Lines To
220 X2 to X3 X1 & X4
110/220 X2 to X3 X1, X2 & X4
110 X1 to X3
X2 to X4		 X1 & X4

 

Connection 14 Top

190/200/208/220/380/400/415/440 Volt Primary, 110/220 Volt Secondary, Taps: None

Conn14.jpg (10889 bytes)

Primary 
Voltage

Interconnect

Connect 
Lines To
440 1 to 2 H1 & H2
415 3 to 4 H1 & H2
400 5 to 6 H1 & H2
380 7 to 8 H1 & H2
220 H1 to 2
1 to H2		 H1 & H2
208 H1 to 4
3 to H2		 H1 & H2
200 H1 to 6
5 to H2		 H1 & H2
190 H1 to 8
7 to H2		 H1 & H2

Secondary Voltage

Interconnect

Connect 
Lines To
240 X2 to X3 X1 & X4
110/220 X2 to X3 X1, X2 & X4
120 X1 to X3
X2 to X4		 X1 & X4

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