what is the significance of per unit impedance ?

7 Answers   HP,

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can i have the methods of speed controls for 3 phase AC MOTORS.

7 Answers  

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What is the different between Insulator & Di-electrict?

2 Answers  

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what is the main different between distribution transformer and power transformer ?

7 Answers   Sail,

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how would you come to know if a transformer is double wound or auto? note that there is no tag. you are given only a multimeter.

5 Answers  

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HOW to speed control of induction mototr using scalar control

3 Answers  

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I am having a 42KW 3 phase electrical heating furnace, heating element is 80/20 nichrome material, my connections is made in such a way that 2 star connection compromising 2 coils per phase so totally 12 coils, shall if i use it unbalanced star condition (instead of 2 group of 3 phase or 1 group of 3 phase, connecting 4 phases of 5 phases) what will be the consequences and is it acceptable?

0 Answers  

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the distance from my office to d.g is aprox 400mtrs and voltage drops ibn my office near about 40 volt what should i do p[ls suggest.

6 Answers  

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what is the difference between cable routing and scheduling?

4 Answers   Techno Labs,

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in dc transmission the frequency pi is zero, then how it will transmit communication signal?

1 Answers  

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Why is the starting current high in a DC motor?

2 Answers  

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The neutarl to earth voltage in system is 7volts on Electricity power but it lowers to 1.3volts when load transfered to DG power.what may be the reason.

3 Answers  

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