Can we use a absolute encoder to show rpm of a motor ? what about the condition when power is off ? what is difference if a incremental one is used ?abanirout@gmail.com

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1)what is the function of a frequency inverter? 2)If a few frequency inverter are connected onto a device network,what are the two setting that will ensure the frequency inverter work properly on the network. 3)whats is the name of the input sensor for weigher? 4)How to confirm that the load cellis faulty? 5)Describe briefly the steps to validate that the weigher is working properly? 6)Describe the procedure to validate the flowmeter accuracy? 7)Describe briefly the steps to validate that the tempreture sensor/transformer is working properly. 8)what is the adjustment that need to be done when you are calibrating the temperature transmitter ? 9)what are the safety measures to be taken before disconnecting motor for rewinding. 10)whats is the synchronous speed in rpm of typical 4pole 50hz motor? 11)whats is the formula for kw, ohm's law 12)if a 3phase motor is rated 3kw,415vac,what is it's rated ampere?

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why master trip(86) used in eletromagnet?

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electrical ques

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What is 100% protection of generator? Why 100% is not used but 95% is generally used?

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CONTACTORS ARE MADE UP OF WHICH MATERIAL?

6 Answers   IOCL,

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distribution transformer de-rating formula on over limit iron losses  

0 Answers   IESCO,

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define hysteresis loss, eddy current loss and windage loss

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what is the difference between "Rotary bypass isolation switch and Normal bypass switch" pls share indepth techs?

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what is inductance function?

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how to testing the AC 3 phase motor? and what is the test procedure & kits required for testing?

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v/f drive basic princeple

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