K-Rated Transformers

Class 7400

Obsolete—October 1, 2015
K-Rated, Three-Phase (15–1000 kVA)

K-rated transformers mitigate Triplen harmonics via a Delta-Wye configuration.

  • Aluminum or copper windings

  • Isolation transformer with electrostatic shield

  • K-4 and K-13 levels

Harmonic Mitigating, Three-Phase (15–1000 kVA)

Harmonic Mitigating transformers mitigate Triplen harmonics via electromagnetic phase relations. They remove 5th and 7th harmonics when using dual devices with a 0° and a +30° phase shift. They further reduce 11th and 13th harmonics when a +15° or -15° shift is added to the dual devices. Available with:

  • Aluminum or copper windings

  • Isolation transformer

NEMA Premium

As a partner in the NEMA Premium Transformer Program, Schneider Electric has determined that this product meets the NEMA Premium Efficiency specifications for premium energy efficiency.

480 V Delta Primary, 208Y/120 Secondary

kVA

Catalog No.

Taps

Weight (lbs)

Enclosure

NP Series for Typical Non-Linear Load Service— K-9 Rated—Copper Windings; 130 °C Rise

15

EP15T3HNISCUNP

6–2.5% 2+4–

310

17D

30

EP30T3HNISCUNP

6–2.5% 2+4–

340

18D

45

EP45T3HNISCUNP

6–2.5% 2+4–

418

20D

75

EP75T3HNISCUNP

6–2.5% 2+4–

642

21D

112.5

EP112T3HNISCUNP

6–2.5% 2+4–

725

22D

150

EP150T3HNISCUNP

6–2.5% 2+4–

915

24D

225

EP225T3HNISCUNP

6–2.5% 2+4–

1125

25D

300

EP300T3HNISCUNP

4–2.5% 2+2–

1535

30D

NP Series for Typical Non-Linear Load Service— K-9Rated—Copper Windings; 115 °C Rise

15

EP15T3HFISCUNP

6–2.5% 2+4–

310

17D

30

EP30T3HFISCUNP

6–2.5% 2+4–

340

18D

45

EP45T3HFISCUNP

6–2.5% 2+4–

418

20D

75

EP75T3HFISCUNP

6–2.5% 2+4–

642

20D

112.5

EP112T3HFISCUNP

6–2.5% 2+4–

725

22D

150

EP150T3HFISCUNP

6–2.5% 2+4–

915

24D

225

EP225T3HFISCUNP

6–2.5% 2+4–

1125

25D

300

EP300T3HFISCUNP

4–2.5% 2+2–

1535

25D

NLP Series for More Severe Non-Linear Load Service—K-13 Rated—Copper Windings; 150 °C Rise

15

EP15T3HISCUNLP

6–2.5% 2+4–

260

17D

30

EP30T3HISCUNLP

6–2.5% 2+4–

430

18D

45

EP45T3HISCUNLP

6–2.5% 2+4–

730

20D

75

EP75T3HISCUNLP

6–2.5% 2+4–

640

20D

112.5

EP112T3HISCUNLP

6–2.5% 2+4–

985

22D

150

EP150T3HISCUNLP

6–2.5% 2+4–

1135

24D

225

EP225T3HISCUNLP

6–2.5% 2+4–

1477

25D

300

EP300T68HISCUNLP

4–2.5% 2+2–

2650

30D

Obsolete—October 1, 2015

Harmonic Mitigating, 480 Primary to 208zz/120 Secondary; Copper Windings

kVA

Catalog
No.

Taps

Weight (lbs)

Enclosure

0° Phase Shift

15

HM15T208HNCUEP

6–2.5% 2+4–

310

17D

30

HM30T208HNCUEP

6–2.5% 2+4–

340

17D

45

HM45T208HNCUEP

6–2.5% 2+4–

418

18D

75

HM75T208HNCUEP

6–2.5% 2+4–

642

20D

112.5

HM112T208HNCUEP

6–2.5% 2+4–

725

21D

150

HM150T208HNCUEP

6–2.5% 2+4–

915

22D

225

HM225T208HNCUEP

6–2.5% 2+4–

1125

24D

300

HM300T208HNCUEP

6–2.5% 2+4–

1535

25D

30° Phase Shift

15

HM15T255HNCUEP

3-5%1+2-

310

17D

30

HM30T255HNCUEP

3-5%1+2-

340

17D

45

HM45T255HNCUEP

3-5%1+2-

418

18D

75

HM75T255HNCUEP

3-5%1+2-

642

20D

112.5

HM112T255HNCUEP

3-5%1+2-

725

21D

150

HM150T255HNCUEP

3-5%1+2-

915

22D

225

HM225T255HNCUEP

3-5%1+2-

1125

24D

300

HM300T255HNCUEP

3-5%1+2-

1535

25D

+15° Phase Shift

15

HM15T251HNCUEP

6–2.5% 2+4–

310

17D

30

HM30T251HNCUEP

6–2.5% 2+4–

340

17D

45

HM45T251HNCUEP

6–2.5% 2+4–

418

18D

75

HM75T251HNCUEP

6–2.5% 2+4–

642

20D

112.5

HM112T251HNCUEP

6–2.5% 2+4–

725

21D

150

HM150T251HNCUEP

6–2.5% 2+4–

915

22D

225

HM225T251HNCUEP

6–2.5% 2+4–

1125

24D

300

HM300T251HNCUEP

6–2.5% 2+4–

1535

25D

-15° Phase Shift

15

HM15T259HNCUEP

6–2.5% 2+4–

310

17D

30

HM30T259HNCUEP

6–2.5% 2+4–

340

17D

45

HM45T259HNCUEP

6–2.5% 2+4–

418

18D

75

HM75T259HNCUEP

6–2.5% 2+4–

642

20D

112.5

HM112T259HNCUEP

6–2.5% 2+4–

725

21D

150

HM150T259HNCUEP

6–2.5% 2+4–

915

22D

225

HM225T259HNCUEP

6–2.5% 2+4–

1125

24D

300

HM300T259HNCUEP

6–2.5% 2+4–

1535

25D

Additional temperature rises are available; for part numbers, see the Schneider Electric Product Configurator.

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