Answer / jigs_eee

We have an automatic power factor controller installed and have six capacitors to control the power factor. the controller is switching on & off the capacitor in auto mode to control the power factor but when we monitor pf at the electricity board meter it is low i.e between 0.8 to 0.87 & @ controller it was unity. is it possible if the load is low?

how can we change the rotating direction of single phase AC induction motors?

12 Answers   Heubach Colour, L&T, MNM Jain Engineering College,

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my question is that....few days ago i had installed a three phase motor starter for an electric saw.the motor will run and make the hydraulic pressure which will be goes to pressure cylender by up and down lever.two number of limitswitches are also installed on cylinder for safety of motor.now when the arm of cylinder reaches to the upper or lower limit it will cut the motor's line.and motor will be stop.now wana know that what will i do that motor runs continue after the limitswitch cut it down but it shold not be made any pressure.pls answer me in brief.

3 Answers  

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Why CT secondary should not be kept open?

7 Answers   Anna University,

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Why 60Hz motor taking more current on load in 50Hz power supply?

1 Answers  

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what is the problem with single phase AC motors and how is it overcome?

2 Answers  

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how to mention 5mw generator in kva ? gen voltage is 11kv

6 Answers  

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what is difference between 5A and 100A CT constructional wise and operation?

1 Answers  

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WHAT IS THE REASON FOR LOW VOLTAGE IN HOUSES?*

1 Answers  

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what is mean by hormonics & surge? and it's effects?

1 Answers   TCS,

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how to varied the frequency in transmission line and how i kept it as a constant one?

2 Answers   L&T,

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how does the rotating m.m.f is produced in the 3-phase induction motor and how the poles are created in 3-phase induction motor ?

0 Answers  

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What is the acceptable earth resistance for Commissioning the Transformer?

6 Answers   HSL,

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