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When calculating the speed of a rotor required for a particular frequency of synchronous generator we use the equation 60f/p Is this p is the number of pole pairs of rotor & do we consider the number of pole pairs in the stator is 1?
UOM,
1945Importance of fault current in power transformers and how to monitor the same? How is it different from winding temperature?
1786What is given by the definition in BIL IMP/PF = 950/395 kV. This was found in a name plate of a power transformer.
AES,
2316is this the formula of building wiring to get the main breaker.Watts/volts*.8%+higher motor*(25%)=ampere. yes or no or send the correct formula for building wiring.
1648What will be the output of an alternator ,if the field current is single phase ac supply.
DRDO,
1 3302Which rccb 30ma,100ma,300ma sensitivity should be used in domestic line and what is difference, advantage and disadvantage of all three
2 21411sir, in a industry present pf is 0.54 pf 25hp power is there its want improve 0.9 pf. which suitable capacity capacitor is suitable please inform me.
2 3655Post New Electrical Engineering Questions
what is the chiller and working principal
Why neutral point is consider as zero potential?
What is referred to the electron in the outer orbit?
How to select batteries required for ups and the inverter if we Known load? And how AH is selected of battery?
how diside ct mf exmp.200/5 ct
1. If 8.35%Z means the percentage impedance of 132kV-line from power company, we will like to confirm its base capacity?
I have finish diploma electronics and five years experience in electrical field in ht service how can i get c licensce or other electrical certificate
Mr. mohh sahid m not satisfied for ur answer to the que weather the size of transformer increases or decreases withchange in fr for more detail go to the answer given by me
List out the different frequency domain specifications?
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?
We have 250 KW x 2 motors, which are load from 25% to 100% varying load in every minute , so how can we compansate the power factor. pl give your opinions on the above subject.
Why is negative feedback invariably preferred in closed loop system?
Why are lt windings placed near the core?
Hello sir, pls send me hpcl technical test papers .i am. Appearing for the exam.
What is the minimum value of hfe for the oscillations in transistorized rc phase shift oscillator?
