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Recent content by vortexwizard

  1. vortexwizard

    protecting ups from back emf when using as an inverter

    thanks, so is there any circuitry i can add to minimise this like the equivalent of a snubber circuit and how do normal inverters deal with this? Thanks
  2. vortexwizard

    protecting ups from back emf when using as an inverter

    hi it is just what i have read, i am mainly using them with power tools and a water pump, so you think there will be no problem with this? I am not using any contactors just the inbuilt trigger switches on power tools and unplugging the water pump to turn it off, if i were to turn off the power...
  3. vortexwizard

    protecting ups from back emf when using as an inverter

    Hi i use old ups(uninterupted power supplies) the type used in offices made by APC with larger battery banks for very cheap off grid inverters, one problem with this i have read is the damage caused by back emf caused when a motor stops. How is it best to protect against this? Many thanks
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