Tri-phase low frequency laminated transformers

Noratel’s tri-phase transformers delivery program includes low voltage isolating transformers up to 4MVA, various degrees of protection, from IP00 up to IP66, cast resin power transformers with maximum service voltages up to 22kV, three-winding power transformers for rectifiers on ships, and custom-designed three-phase transformers and production in large series.

Test and documentation according to demanding shipping and offshore standards.

Tri-phase low frequency laminated transformers

Range features

A high level overview of what this range offers

  • Input voltages from 3x 115V to 3x 1000V
  • Frequency 47-63Hz
  • Output voltages from 3x 115V to 3x 1000V
  • Power range up to 4 MVA, 47-63Hz
  • Vector groups: Dyn11 (standard), Dyb5, Ynd1, and Ynd5
  • Degree of protection: open (IP00) and capsulated (IP23 to IP66)
  • Construction class: I
  • Built according to: EN61558-2-4, UL506, UL file no. E305755, D.N.V, IEC60726/ IEC60076, e.a
  • Insulation class: B (130°C), F (155°C)
  • Ambient temperature (t a ): 40°C (D.N.V)
  • Connections: terminal block ore Cu-bars
  • Custom designed types with other voltages, frequencies, an electrostatic shield between primary and secondary, regulations, tappings, temperature control units with alarm or trip [TC], PT100 sensors [PT], RTD sensors [RTD] or other features are available on request

Downloads

for Tri-phase low frequency laminated transformers

pdf
Standard range tri phase transformers 3LT00m25_eng
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pdf
Standard range tri phase transformers 3LT23m25_eng
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Standard range tri phase transformers 3RTLI_eng
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What’s in this range?

All the variants in the range and a comparison of what they offer

ModelPower (VA)Voltage primary – secondary (V)Current sec. (A)Dimensions (L x W x H)

3LT10-400400-00

10kVA

P: 3 x 400V

S: 3 x 400V

3 x 14.43A

360 x 243 x 380mm

3LT30-490230-23

30kVA

P: 3 x 490V

S: 3 x 230V

3 x 75.30A

599 x 550 x 630mm

3LT80-690400-54

63 kVA (class F)

70kVA (class H)

P: 3 x 690V

S: 3 x 400V

3 x 90.93A (class F)

3 x 101.04A (class H)

660 x 520 x 877mm

Contact us

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