Transformer Three-phase 690V / 400V

Transformateur Triphasé 690V / 400V,Transformateur Triphasé 690V 400V
Primary : 690V   -   Secondary : 400V
Ref : 1T201-TN-X885-C
Price : Sur devis
Disponibilité : 1 to 2 weeks

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This three-phase 690V - 400V transformer offers three key features: it provides substantial galvanic isolation of 3,000 Volts, it steps down the voltage of a three-phase network from 690V to 400V, and it creates a neutral point at the output.

Available in a wide range of power ratings, up to several hundred kVA, it is generally supplied in an enclosed version. You can also select the bare version using the Protection (IP) menu.

This product is typically used in industrial environments with high voltages that then need to be stepped down to 400V. These voltages are increasingly common in the renewable energy sector, such as solar or wind power.

If you require a three-phase transformer with adjustment taps, an electrostatic screen or any other additional options, do not hesitate to send us a specific request.

As this product has no adjustment taps, we have designed it to be tolerant to over-excitation. This tolerance has its limits, so do not hesitate to contact us if your network voltage is high, if harmonics are present, or for any advice on a specific installation.

Technical details

Image des cotes
Input / Primary
690V D
Sortie / Secondaire 1
400V Y+N 0.3A
Winding material
Copper
Nom. Power
200 VA
Dielectric P/E (V)
2 500V
Dielectric S/E (V)
2 500V
Insulation class
I
Coupl. Complet
Dyn11
Frequency (Hz)
50-60 Hz
Iron Losses (W)
8.3
Hot Winding Losses (W)
16.5
No-load U₂ (V)
425.5V
Voltage Drop (%)
6.38
RoHS Compliant
Yes
Lifting Ring
No
Option_Screen
No
Dimensions: L x W x H (mm)
150 x 105 x 149
Mounting: X x Y x Ø (mm)
125 x (72 - 85) x 6.5
Weight (kg)
4.5
Ventilation Clearance (mm)
50
Prim. Protection (rec.)
DJ D - 1A
Sec. Protection (rec.)
DJ C - 1A

Notes and options

General Specifications

  • Efficiency from 94 to 98% depending on power rating.
  • Low losses and low voltage drop, from 2 to 4% depending on power rating.
  • High-quality vacuum impregnation.
  • Operating temperatures of 35°C or 40°C.
  • IP00 or IP21 with textured paint on RAL7035 enclosures.
  • Connections via terminal blocks or busbars depending on power rating.
  • Dielectric strength: from 2,500 to 4,500V depending on reference.
  • Temperature rise class: B, F or H depending on reference.
  • Copper or aluminium winding depending on power rating.
  • Environmentally friendly: RoHS compliant and solvent-free varnish.

Available Options

  • Addition of electrical protection (circuit breakers, fuses, isolators).
  • Voltage adaptation up to 1,000V.
  • Addition of adjustment taps.
  • Addition of temperature sensors (NC, NO or PT100).
  • Adaptation to higher frequencies (400Hz).
  • Adaptation for harmonics (K-factor K7, K13 etc.).
  • Adaptation to extreme ambient temperatures.
  • Variable IP rating (IP00 to IP55).
  • Addition of silent blocks, casters, rollers.
  • Enhanced tropicalisation.
  • Special paint for enclosures.
  • Custom design for tailored dimensions.

⚠ Important note: Some of the options you may select could affect the dimensions and weight of the autotransformer. Please contact us for further information.

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