What are the different condition monitoring techniques for a motor?
the following are the major condition monitring in motors.
running condition
1. load current, PF, RPM, voltage applied to th emotor
2. vibrations of the motor in all three directions, vertical, horizontal, axial
3. bearing vibrations( now days in one meter we can measure the both readings)
off condition
insulations resistance of the motor
winding resistance of the individual coil
inductance of the individual coil
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Can earth resistance be measured without connecting the earth electrode? and should earthing connections be disconnected What is the effect of connecting two cables of different sizes in parallel with supply? Thanks in Advance. I am intrested to get in touch with some tecnocrats/engineers,my mail i.d is : hiremathvijay@rediffmail.com
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