Wat is power factor exact meaning in terms of technical terms plz explain ?4 3637
What is phase in electrical engineering?5 12145
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.2373
What are the test involved in DG auto synchronizing panel before in manufacturing place before dispatch.2 3490
sometime battery charged and then automatically charged when rectifier ON conition, is there any chances please clarify the same.1 2212
sometime battery charged and then automatically charged when rectifier ON conition, is there any chances please clarify the same.979
Hello sir, pls send me hpcl technical test papers .i am. Appearing for the exam.
Can you please explain creepage distance in detail, for a 6.6kV cable head what must the distance be and how do you determine it?1799
How to PLC give the command to electrical1 1822
power transmission pole used one support , that only for support or earthing
what is the formula for calculating the phase clerance between two phases and phase to earth how to calculate the cable for a motor
what is advertised hop count
excitation limit of an excitor
Can any one give an explanation about rating factors of cable? if we are laying the cable on the air with an temp 15 degree then rating factors will be 1.15 and if we are laying the cable on the air an temp 60 degree then rating factor will be 0.76 please describe it and what is the difference between rating factor and derating factor?
Why does curving the pole faces in a dc machine contributes to a smoother dc output voltage from it?
what is the difference between gas group b and gas group c electrical equipment construction wise?
What is difference between start imitation and start interlock for 3 phase motor protection ?
how to convert lv line to hv line and viseversa, any losses will occur during this process
what is mind in cable
Does the motor power displayed on the Motor name plate is the mechnical power motor delivers or it is consumed power from the system?
Can we Co-ordinate relay in Load Break switch?
Explain about retrofitting of machine tool.
how to prepare the technical test
Why reactors use before incoming of ac vvfd drive?