B
Bart
- Jan 1, 1970
- 0
<crossposted to sci.electronics.basics and alt.machines.cnc>
I bought a digital handheld LCR meter thinking I could measure inductance
of motors to see if the motor is bad. The motors are DC-servo with brushes,
3-phase AC servos (220volt), and stepper motors. The meter generates both
1khz and 120 hertz and the display shows the henrie, millihenries or
microhenries and also a "Q" value (don't know what that is). Is there a way
to figure out from a motor nameplate what my meter should read if the motor
is good? AC motor's nameplates tell how many poles, voltage rating, amp
rating, and horsepower. A DC motor's nameplate tells voltage, amp rating,
and torque. The meter also can show resistance in ohms at either 1khz or
120hz.
ANY info about using this meter and/or checking motors to see if they're bad
is GREATLY appreciated.
Thanks in advance,
Bart
I bought a digital handheld LCR meter thinking I could measure inductance
of motors to see if the motor is bad. The motors are DC-servo with brushes,
3-phase AC servos (220volt), and stepper motors. The meter generates both
1khz and 120 hertz and the display shows the henrie, millihenries or
microhenries and also a "Q" value (don't know what that is). Is there a way
to figure out from a motor nameplate what my meter should read if the motor
is good? AC motor's nameplates tell how many poles, voltage rating, amp
rating, and horsepower. A DC motor's nameplate tells voltage, amp rating,
and torque. The meter also can show resistance in ohms at either 1khz or
120hz.
ANY info about using this meter and/or checking motors to see if they're bad
is GREATLY appreciated.
Thanks in advance,
Bart