what is the difference betweem star connected motor & delta connected motor?

0 Answers  

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how to reduce humming noise in transformer?

3 Answers  

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what happen if rotor earth fault in AVR system?

1 Answers  

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What are the advantages of a three-phase system over a single-phase system?

0 Answers  

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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?

0 Answers  

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Which test will be more severe for VCB?

0 Answers   CPRI, Reliance,

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what is use of substation? Any book on how to instal or construction of substations?

6 Answers   Siemens,

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what is voltage, and how it makes the electron to move?

6 Answers  

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Explain in brief description about the operation of DG sets.

0 Answers   Siemens,

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regarding safety what would u consider the most important rules to observe when inspecting electrical equipment?

0 Answers   Reliance, Southco Utility,

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Re: What do you mean by Power factor of a generator? Power factor purely depends on the load (wether inductive, reactive or unity) then what does the Power factor mentioned on the generator nameplate means?

2 Answers  

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What is the difference between expansion joints & thermal expansion joints in Bus bar

1 Answers  

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