| Description of the range |
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Function :
 When energised, a motor behaves as a short-circuited transformer and its starting current can be as high as 8 to 12 times its nominal current.
An autotransformer limits this current by starting the motor at a reduced voltage.
Characteristics :
Equipment type: dry impregnated or cast resin
Voltage: ≤ 24 kV
Cooling type : air natural (AN), oil immersed (ONAN) for special applications
Winding: copper or aluminium
Mechanical protection by covers: IP21 up to IP65
Applications :
Motor starting in all business sectors
Compliance with standards :
 IEC 60076-11: Power transformers - Dry-type transformers
| Characteristics to be communicated to us |
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Motor capacity (kW)
Supply voltage
Frequency
Nominal current
Starting current
Desired reduced starting current
Duration and number of starts per hour
Protection degree
Operating conditions
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Wide ranging experience in obtaining starting torque and minimum starting current
The autotransformers are incorporated into Schneider Electric motor starting cubicles (Motorpact and MSA)
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