Should I be worried of Inductive kick with an autotransformer for 230V to 110V ?

• Should I be worried of Inductive kick with an autotransformer for 230V to 110V ?
  Posted by electronic_guy on 10 Mar, 2022 14:34
• Hi,
  Usually when an inductive load is switched off there is a mechanism applied to stop the sudden current spike caused due to hight current change rate during switch off through the inductor.
  I have bought a chinese autotransformer (shown in picture) to convert 230V to 110V to power my Hakko fx888d soldering station. I have no way of knowing the inside of the autotransformer without dissecting it and that would break the warranty seal.
  Should I be really worried of this causing some damage to my soldering station when I switch off the autotransformer ? 
  
  Thanks.

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• #1 Reply
  Posted by bob91343 on 10 Mar, 2022 17:30
• No.  If that worries you, leave the transformer energized and control the power at the load.
• #2 Reply
  Posted by T3sl4co1l on 10 Mar, 2022 19:50
• Same as any other AC power switch... if the transient is annoying, wire a snubber across the switch or load.
  
  Inductive kick for a mechanical switch is more a matter of repetitive sparking and consequent emissions (EFT, electrical fast transients).
  
  Tim