what is the significance of per unit impedance ?

7 Answers   HP,

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WHY IS CT SECONDARY SHORTED TOWRDS TH EQUIPMENT TO BE PROTECTED

1 Answers  

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what is different between 51N and 51G functions relay?

1 Answers  

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What is the tipical Online UPS input voltage for 20 KVA load ( 3 Phase or 1 Phase )? Why ? Explain it...?

0 Answers  

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how system fault level is calculated?

1 Answers   HCL,

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which is the best institute for PLC,SCADA,DCS in hyderabad

0 Answers  

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why current flow to the opposite direction of flow of electrons???????????

0 Answers   Bhel,

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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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what is the difference between kva and kw ?

5 Answers   TCS,

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what is the difference between 2 way and 4 pole selector switch???

0 Answers   Allied Group,

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What do you understand by oldham's coupling ?

0 Answers   Godrej,

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What is the fullform of IPS in substaion using Aluminium Tubes

15 Answers   L&T,

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