Three-phase autotransformer 230/400V 1 KVA reversible with box
Three-phase autotransformer 230/400V 1 KVA reversible with box
Three-phase autotransformer 230/400V 1 KVA reversible with box
Three-phase autotransformer 230/400V 1 KVA reversible with box
Three-phase autotransformer 230/400V 1 KVA reversible with box
Three-phase autotransformer 230/400V 1 KVA reversible with box

Three-phase 230/400V 40 KVA reversible autotransformer with box

€1,064.83 Tax included

887.36 tax excl.

ATT40

Three-phase 40kVA reversible autotransformer with metal case, allows voltage adaptation from 230Vac three-phase to 400Vac three-phase or 400Vac three-phase to 230Vac three-phase. Also generates neutral.

It allows to adapt the tension in machinery, motors, pumps, etc., in an economical way.

Reference: ATT-40

three-phase autotransformer electrical diagram
Representative image for illustrative purposes, the item supplied will correspond to the specifications indicated.

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Three-phase, dry-type, reversible autotransformer for voltage change, capable of generating neutral while transforming the voltage value. They are indicated when it is required to adapt the voltage in an economical way, without galvanic separation. Their usual field of application is the adaptation of voltages in machines, pumps, motors, etc. They are supplied in a metal box that provides an IP-23 insulation degree, connection by means of terminals.

Manufactured with low loss magnetic sheet providing high performance.

Technical characteristics:

  • Reference: ATT-40
  • Windings: Thermal class N 200ºC.
  • Transformation ratio 230/400V and neutral. Reversible.
  • Power: 40 KVA.
  • Apparent intensity:
    • 400Vac: 57.8A
    • 230Vac: 100.5A
  • Frequency: 50/60Hz.
  • Connection: Yn0.
  • Test voltage: 3KV between windings and ground.
  • Insulators: Thermal class F 155ºC YH 180ºC.
  • Protection: IP-23 (Metal Box ).
  • Ambient temperature: TA=25ºC.
  • Cooling: ANAN (Natural air).
  • Certificate: UNE-EN 61558, UNE-EN 60076.

 

Dimensions of three-phase Sevein autotransformers

The transformer is supplied without any type of overload protection; it is mandatory to install this to avoid overloading the transformer.
The power and intensity indicated are apparent, the active intensity provided by the transformer will depend on the power factor of the connected load.
Professional use material, install in compliance with the regulations in force at the installation site.

Questions

Question
Bonjour je voudrais savoir si l autotransformateur correspond au stabilisateur de tension (même chose). Cordialement
Answer
Bonjour.

Un autotransformateur n'est pas la même chose qu'un stabilisateur de tension. L'autotransformateur auquel vous faites référence est capable de supporter une charge de 28 KW et peut fonctionner de 230 Vac triphasé à 400 Vac triphasé ou de 400 Vac triphasé à 230 Vac triphasé.

Le stabilisateur est un appareil qui, à partir d'une tension d'entrée inférieure à la tension de fonctionnement de l'équipement, stabilise une tension de sortie constante, afin que l'équipement ne se détériore pas, il existe des plages de tension d'entrée dans lesquelles l'appareil peut fonctionner, marquées par le fabricant, en dessous ou au-dessus de ces paramètres, le stabilisateur est bloqué.

Cordialement
Aboubakary on 11/22/2022 18:40:34
Question
Buenas tardes, Me gustaría saber que tipo de protecciones me recomienda para un transformador de 40KVA,, Agradezco su respuesta
Answer

Buenos días,

Las protecciónes habituales son mediante magnetotermicos, para la entrada se suelen instalar curva D, en la salida suele ser suficiente con curva C.

Saludos

saul idrogo carrillo on 08/10/2018 20:31:59

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