Hi,
I am trying to figure out when I am varying the voltage and cycle of a three phase AC motor, what kind of derating would I need to do. I know if I am switching from 60Hz to 50Hz, the HP(final)=HP(initial)*50/60. Is there anyway to calculate change of RPM and other parameters? How do I derate...
Hi,
I am trying to proof that (Vertical hollow shaft) VHS motor does not need to be energy efficient for meeting the "NEMA" standard. In the NEMA MG-1, it specified what would quaify as an energy efficient motor, but it never stated what is the "standard." I don't believe they have a standard...
Hi,
I am working on trying to get our motors certified as Class 1 division 2. I looked into UL and CSA website and trying to figure out what type of requirement we need to meet for the motors be certified as Class 1 div 2, however I didn't find a whole lot. Is there any requirement data or...
I am looking into converting 9pF to 22pF capacitance to frequency data. So I started doing research on Oscillator. I have area constraint since I am trying to do it on CMOS technology. The frequency can't be too high. preferable under 100kHz. Inductor is too big for CMOS and due to the low...
