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  1. Tanweer Ahmed

    Electric fire pumps at an industrial facility - any engineering tips anyone can share ?

    You will multiple correct answers but all of them may not be applicable to you. Fire fighting pumps are highly regulated subject and you need to comply with the regulatory requirements of your local authorities.
  2. Tanweer Ahmed

    Interpret VFD spec for motors

    Hello Marke, You are right. It depends what is your 100%. My statement is based on standard practice adopted by most of the major brands. Exceptions are always there, as you said.
  3. Tanweer Ahmed

    ACS800 Master Slave Configuration

    I have severally implemented such application where two motors and VFDs are driving a single load. The challenge is to have equal load sharing by both the drives and this is not easy to achieve and no manual explains this how to do.
  4. Tanweer Ahmed

    power ratio VFD-motor

    For running two motors in parallel is technically possible but not a good idea. The reason is that the VFD's built-in protection features will not work. It's better and cheaper to use two 0.75kW VFDs.
  5. Tanweer Ahmed

    Interpret VFD spec for motors

    Hi Cheetos, That simply means you can overload the VFD to 115% for a maximum of one minute. But it does not mean you run it at 100% for 9 minutes and every 10th minute you run at 115%. Why it is like that? Because when overloaded you heat up the power electronic components to it limit. Now you...
  6. Tanweer Ahmed

    Induction motor stator orientation

    Hello Engineers, We just received a new 200kW 4P induction motor. Due to machine space restriction the MTB needs to be on other side of the motor. The motor terminal box is casted with the motor housing. Therefore, in order to change the MTB orientation we have to rotate the complete stator. My...

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