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What is Low cycle fatigue failure and High cycle fatigue failure? What are considerations of these while designing a machine?
1 7283What should be setting for alarm,tripping and cooling fan on for power transformer's oil temp. and winding temp. indicator?
1940While performing stability test of differintial cts how to know the voltage and current on both side of the transformer?
3539a.)Ammeter and Voltmeter read rms value or avg. value ? b.)What are symmetrical and Unsymmetrical faults?
2 7282what is synchronous speed.? if an induction motor is made to run at full load, then is this synch. speed too..?
2 7559I used Etabs software to analyse a high-rise building. And I want to use templated UBC-codes inside to calculate the Seismic load. My question is: whether or not I have to control the seismic load by base shear load which is manual calculation? (just for more clarification: I can control this by input the scale factor into Eartquake definition in Etabs) I would highly appreciate your answer.
6085What is the formula for calculating the Instantaneous Short Circuit & overcurrent for any breaker
2011
I need HT sphere gap calibration table. Can any body help me.
What are the advantages and disadvantages of closed-loop control system?
what is the affect of earth's magnetic field on the frequency used in aircraft???
Explain the function and difference of Restricted earth fault, simple earth fault and sensitive earth fault with connection diagram.
what is the pulse and audio frequency transformer? what is different between induction regulators and tap changing transformer?
Electrical Engineering
i have gear oil pump with single phase motor.some time its motor starts running in reverse direction rather than forward direction...whats the reason behind this issue. 1- either capacitor is week? 2- or winding is week?
When we run the report j1ifr ( pending 4(5)a challan )this report can we convert in excel sheet.
What is the minimum underground tank size capacity considered for firefighting purpose?
what is compensation? temprature & pressure
which/why unix commands are simpler rather than complex tasks
Why there are some equipment(i.e:TV) that using 2-pin plug instead of three? What happen if there is current leakage? Are we going to get electric shock??
1- XC and the RC time constant are both measures of the reaction of C to a change in ____? 2-The power factor is a numerical ratio with a value between 0 and 1 equal to the ______________ of the phase angle. 3-When V and I are out of phase because of reactance, the product of V times I is called ______________ power 4-For _____________ inductors, the branch currents can be added algebraically. 5- The ______________ power in watts can be calculated as I^2R 6-Calculate XL with L = 30mH and f = 1kHz ( I have Xl=2piFL 2*3.141592653*1kHz*30mH =188 ohms Please check) 7-A parallel RL circuit has the values, R = 5kohms, XL = 5kohms. A voltage source of Vt = 10Vrms is connected in parallel to R and L. Determine the total current, It delivered by the voltage source Vt. 8-A series RC circuit has R = 1Mohm and C = 1microF. How long would it take for the capacitor to fully discharge if it is initially fully charged? 9-A circuit has real power = 300W and an apparent power of 500VA. Determine the power factor and phase angle. 10-The time constant for an LR series circuit is T = 0.1s and R = 10ohms. Calculate the inductance L.
What is the use od d2?
What is the substitute of Mastic Asphalt?
