exolain the star delta connection

0 Answers   Toyota,

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What is mathematical model of a control system?

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how can 3phase motor speed can be controlled without vvf drive?

1 Answers  

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The slip during plugging operation is given by= A 1-s B 2+s C 1+s D 2-s

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How frequency meter measuring frequency? What is the principle of frequency meter?

2 Answers  

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what are the protection relays for trasformer

3 Answers  

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As we use capacitior bank in 3ph ckt for improvement of PF, why not we use capacitor in single phase domestric use, at our house their are many inductive equipments,like fan,mixer,tube choke,air conditioner they also draw PF... by using capacitor can they improve PF. if yes--what are advantage and how to connect a capactor in single ph,and which type of capacitor if no- what are disadvantages.

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what is skin effect and corona discharge ?

4 Answers   Asian Paints,

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what is earthing transformer? draw the winding dia.of earthing transformer.

0 Answers  

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what is the Excaste meaning of CT Saturation?? 10 P 20, 15 VA, what is the meaning of 10, & 20. if the CT polarrity changed what will happened?? what is the differece between measuring CT & Protection CT?? what is the Saturation Point of measuring CT & Protection CT??

1 Answers  

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In industries Power factor is maintained by installing a suitable KVAR bank, How is the PF maintained for domestic use, where is the capacitor bank connected

3 Answers  

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why using carbun bresh in dc motor

3 Answers  

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