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I have an electric drive system for a garage door that has the supply voltage mentioned above. What does the 3~132V mean?. The output torque is 190 NM and the output speed is 85 rpm. The input current rating is 13.3 A. Here's the best photo I have of the plate: enter image description here

Harshvir Singh
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    Is it 3-phase or is it missing some digits. Post an in-focus, properly cropped photo of the rating plate and the wires or terminals. – Transistor Mar 08 '21 at 20:22
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    3 phase 132V... –  Mar 08 '21 at 20:39
  • 3-phase garage door opener gotta be a heck of a garage door opener. Like an industrial sized door you drive tractor trailers through. Is that the case??? – Kyle B Mar 08 '21 at 22:26
  • Maybe it's the max current input when the motor starts, as 190NM and 85rpm (prob gearbox) aren't that high. 3-phase could make sense for an old motor. – Damien Mar 09 '21 at 05:33
  • @KyleB, It is a parking garage door for an office building. – Harshvir Singh Mar 09 '21 at 21:47
  • Elektromat is still in business. They don't have this model listed on their website, but I did find it at some distributors. If you contact Elektromat directly, they almost certainly will provide you with the technical data for this unit. Here's their current similar products https://gfa-elektromaten.com/en-DE/products_SI.html#ELEKTROMATEN_SI – Kyle B Mar 09 '21 at 21:57
  • 3~ almost certainly indicates 3phase. – Russell McMahon Mar 09 '21 at 23:09
  • Now that there is a picture of the name plate (or label) it seems like it is not such a bad question that it would need to be closed. IMO. – user57037 Mar 10 '21 at 05:17

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Let's cross check everything.

Output speed in rad/sec:

85 RPM * 1m/60s * 2 * pi rad/rev = 8.9 rad/sec.

Output torque: 190 Nm.

Output power: 190 * 8.9 = 1.7kW

Input power (assuming it is three-phase):

132 * 13.3 * sqrt(3) = 3kW. Or, maybe we should say 3kVA.

Considering that the input frequency is 60 Hz and the output is 85 RPM, it is safe to say that there is a high ratio mechanical gear reduction integrated in the motor. Between that and motor efficiency and power factor, this ratio between input kVA and output kW sounds about right. So I would bet money that it is a three phase 132V motor.

user57037
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