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  • Users: singpower
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  1. singpower

    Motor for VSD

    Hi Presently, there are few set of pumps(motors) started by softstarters. Due to the changes of application, we need to use VSD instead of softstarter. The contractor explained that motor also need to be replaced as current motor(s) is not suitable for the VSD. My question here is that is it...
  2. singpower

    How to use Hi set function of protection relay

    Hi I know that all of numerical relay have hi set function and I don't know how to use it. I mean, under what condition it is used and how to select the right setting. Or any web page, literature that I can look at it? I googled its use in the web and no satisfactory result.

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