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If we want to change a contactor of faulty one what are the conditions want to fullfil
How to Calculate The sag of OPGW in Transmission Line???
I NEED RRB SYLABUS FOR JE ELECTRICAL ,PLEASE SEND TO MY E- MAIL ID joo28_eee@yahoo.co.in
What is the rating factor for copper cable ( Specific value according to the type of laying ) & the voltage drop?
How the setting of the vector surge relay shall be calculated when the relay is to be used for Grid islanding application?
2- What are the percentages between excitation currents in phase (R, S and T) in ∆ and Ỵ connections in excitation Current test in transformers?
Should power factor be low or high?
What are the effects of adding a zero to a system?
what is the difference between delta delta and star delta connection transformer? why we use delta delta transformer since it need earthing transformer for grounding?
Give the topology of current amplifier with current shunt feedback?
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?
what is the clear formula to calculate cable size for a load
can we do the star delta connection of capacitor for 3- phase motor starter.
when generator short circuit condition, the current how dissipates. or at short circuit voltage not available then current how can flow?
How to improve fuel cell in a distribution system?
