Sola/Hevi-Duty: Electrical Connections for General Purpose Transformers


	Electrical Connections

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Electrical Connections

Connection 1 (S5 Series)

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

	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 2 (T2 Series)

480 D Volt Primary, 208Y/120 Volt Secondary, Taps: 2, 2½% FCAN; 4, 2½% FCBN


Primary	H1-H2-H3	Secondary Voltage
@ Tap	Voltage	X1, X2, X3	X0-X1, X2, X3
1	504	xx208xxxx	xx120xxxx
2	492
3	480
4	468
5	456
6	444
7	432

Connection 3 (T5 Series)

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


Primary	H1-H2-H3	Secondary Voltage
@ Tap	Voltage	X1, X2, X3	X6-X1, X6-X3
1	504	xx240xxxx	120
2	492
3	480
4	468
5	456
6	444
7	432

Connection 4 (S10 Series)

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

	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 5 (T81 Series)

480D Volt Primary, 480Y/277 Volt Secondary, Taps: 2, 2½% FCAN; 4, 2½% FCBN


Primary	H1-H2-H3	Secondary Voltage
@ Tap	Voltage	X1, X2, X3	X0-X1, X2, X3
1	504	xx480xxxx	xx277xxxx
2	492
3	480
4	468
5	456
6	444
7	432

Connection 6 (T3 Series)

208 D Volt Primary, 208Y/120 Volt Secondary, Taps: 2, 2½% FCAN; 4, 2½% FCBN


Primary	H1-H2-H3	Secondary Voltage
@ Tap	Voltage	X1, X2, X3	X0-X1, X2, X3
1	218	208xxxx	xx120xxxx
2	213
3	208
4	203
5	198
6	192
7	187

Connection 7 (T84 Series)

208 D Volt Primary, 480Y/277 Volt Secondary, Taps: 2, 2½% FCAN; 4, 2½% FCBN


Primary	X1-X2-X3	Secondary Voltage
@ Tap	Voltage	H1-H2-H3	H0-H1, H2, H3
1	218	xx480xxxx	xx277xxxx
2	213
3	208
4	203
5	198
6	192
7	187

Connection 8 (T6 Series)

240 D Volt Primary, 208Y/120 Volt Secondary, Taps: 2, 2½% FCAN; 4, 2½% FCBN


Primary	H1-H2-H3	Secondary Voltage
@ Tap	Voltage	X1, X2, X3	X0-X1, X2, X3
1	252	xx208xxx	xx120xxxx
2	246
3	240
4	234
5	228
6	222
7	216

Connection 9 (T85 Series)

240 D Volt Primary, 480Y/277 Volt Secondary, Taps: 2, 2½% FCAN; 4, 2½% FCBN


Primary	H1-H2-H3	Secondary Voltage
@ Tap	Voltage	X1, X2, X3	X0-X1, X2, X3
1	252	480	xx277xxxx
2	246
3	240
4	234
5	228
6	222
7	216

Connection 10 (T7 Series)

600 D Volt Primary, 208Y/120 Volt Secondary, Taps: 2, 2½% FCAN; 4, 2½% FCBN


Primary	H1-H2-H3	Secondary Voltage
@ Tap	Voltage	X1, X2, X3	X0-X1, X2, X3
1	630	xx208xxxx	xx120xxxx
2	615
3	600
4	585
5	570
6	555
7	540

Connection 11 (T71 Series)

600 D Volt Primary, 480Y/277 Volt Secondary, Taps: 2, 2½% FCAN; 4, 2½% FCBN


Primary	H1-H2-H3	Secondary Voltage
@ Tap	Voltage	X1, X2, X3	X0-X1, X2, X3
1	630	xx480xxxx	xx277xxxx
2	615
3	600
4	585
5	570
6	555
7	540

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