Dry Type Distribution Transformers

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© July 2020

225

Primary

Voltage

Interconnect

Connect

Lines to

480

1-H1 & 2-H2 & 3-H3

H1, H2 & H3

456

4-H1 & 5-H2 & 6-H3

H1, H2 & H3

432

7-H1 & 8-H2 & 9-H3

H1, H2 & H3

Secondary

Voltage

Interconnect

Connect

Lines to

380

X1, X2, X3

220

X0, X1, X2, X3

HT79 Series

Primary

Voltage

Connect

Taps

Connect

Lines To

480

1-H1 & 2-H2 & 3-H3

H1, H2, H3

456

4-H1 & 5-H2 & 6-H3

H1, H2, H3

432

7-H1 & 8-H2 & 9-H3

H1, H2, H3

Secondary

Voltage

Interconnect

Connect

Lines To

240

X1, X2, X3

120-0-120

X6 to

X1-X6-X3

HT5 Series

Primary

Voltage

Interconnect

Connect

Lines to

480

1-H1 & 2-H2 & 3-H3

H1, H2, H3

456

4-H1 & 5-H2 & 6-H3

H1, H2, H3

432

7-H1 & 8-H2 & 9-H3

H1, H2, H3

Secondary

Voltage

Connect

Lines to

208

X1, X2, & X3

120

X0, X1, X2, X3

HT1 Series

480

Δ Volt Primary

208Y/120 Volt Secondary

Taps: 2, 5% FCBN

27

Electrical Connections (Three Phase)

480

Δ Volt Primary

240

Δ w/120 CT Volt Secondary

Taps: 2, 5% FCBN

28

480

Δ Volt Primary

380Y/220 Volt Secondary

Taps: 2, 5% FCBN

29

Primary

Voltage

Connect Taps

Connect

Lines To

208

1-H1 & 2-H2 & 3-H3

H1, H2, H3

198

4-H1 & 5-H2 & 6-H3

H1, H2, H3

187

7-H1 & 8-H2 & 9-H3

H1, H2, H3

Secondary

Voltage

Connect

Lines To

208

X1, X2, & X3

120

X0, X1, X2, X3

HT3 Series

208

Δ Volt Primary

208Y/120 Volt Secondary

Taps: 2, 5% FCBN

26

27

Notes:

Connect the electrostatic shield to the equipment

ground (green) or to both the equipment ground

and the system ground (white). Specifications are

subject to change without notice.

= Earth Ground

X1

X1

X2

X2

X3

X3

X0

X0

SHIELD

SHIELD

H1

H1

H3

H3

H2

H2

4

4

55

6

6

1

1

2

2

3

3

7

7

8

8

9

9

H1

H1

H3

H3

H2

H2

X1

X1

X2

X2

X3

X3

X0

X0

X1

X1

X2

X2

X3

X3

X0

X0

SHIELD

SHIELD

H1

H1

H3

H3

H2

H2

4

4

5

5

6

6

1

1

2

2

3

3

7

7

8

8

9

9

H1

H1

H3

H3

H2

H2

X1

X1

X2

X2

X3

X3

X0

X0

X1

X1

X2

X2

X3

X3

X0

X0

SHIELD

SHIELD

H1

H1

H3

H3

H2

H2

4

4

5

5

6

6

1

1

2

2

3

3

7

7

8

8

9

9

H1

H1

H3

H3

H2

H2

X1

X1

X2

X2

X3

X3

X0

X0

X1

X1

X2

X2

X3

X3

X6

X6

SHIELD

SHIELD

H1

H1

H3

H3

H2

H2

4

4

5

5

6

6

1

1

2

2

3

3

7

7

8

8

9

9

H1

H1

H3

H3

H2

H2

X1

X1

X6

X6

X3

X3

X2

X2

Primary

Voltage

Connect Taps

Connect

Lines To

240

1-H1 & 2-H2 & 3-H3

H1, H2, H3

228

4-H1 & 5-H2 & 6-H3

H1, H2, H3

216

7-H1 & 8-H2 & 9-H3

H1, H2, H3

Secondary

Voltage

Connect

Lines To

208

X1, X2, & X3

120

X0, X1, X2, X3

HT6 Series

240

Δ Volt Primary

208Y/120 Volt Secondary

Taps: 2, 5% FCBN

25

X1

X1

X2

X2

X3

X3

X0

X0

SHIELD

SHIELD

H1

H1

H3

H3

H2

H2

4

4

5

5

6

6

1

1

2

2

3

3

7

7

8

8

9

9

H1

H1

H3

H3

H2

H2

X1

X1

X2

X2

X3

X3

X0

X0