a) What is leading and lagging power factor? and discuss about the reasons for the low powerfactor.(b) Discuss about the power factor improvement methods i want it in clear handwriting if possible because some words not clear and i cannot be read

How do power factor correction devices work, and what benefits do they provide in commercial and industrial power systems?

A power station is to supply two loads. The daily load curve of the station is as shown in figure below. If the load factor of the two loads are 0.416 and 0.458 respectively, and the diversity factor of the power station is 1.142, find:1- The load factor of power station.2- The energy consumed per day and the maximum demand(connected load) of each load.

Answer the Question on the picture and answer this question  SECOND QUESTION: what is the power factor of the circuits. Determing also whether it is lagging or leading.

A step-down chopper is to be used to supply power from a 600-V overhead wire to the commutator motor on a trolley bus. The motor may be mod- eled as a generated direct voltage in series with a resistance of 0.2 and an inductance of 25 mH. The frequency of the chopper is set at 500 Hz. (a) When the bus is stopped, what should be the ON time of the chopper to provide a motor current of 150 A? (b) What is the maximum possible generated voltage of the motor for which a current of 150 A can be supplied? (c) What is the average value of the supply current for the conditions of (a) and (b)? បទៅនឹងរស់របស (d) If the motor current is to be continuous, what should be its minimum. value?

Two generators are supplying a load. Both the generators have a no-load frequency of61.5 Hz and the slope sp of 1 MW/HZ. If they are supplying a real load of 2.0 MW at 0.8 pflagging, what would be the system frequency and power sharing between two generators?What measures can be taken to make the frequency 60 HZ. If an additional 1.0 MW load isconnected to the existing one what would the system frequency be.

Discuss the importance of power factor correction in power systems and the devices used for this purpose.

Discuss the various methods and technologies used for power factor correction in industrial power systems. How does power factor correction improve the efficiency of electrical systems?

In U.S. residences, electrical power is generally utilized at a nominal voltage of 120 V rms. What problems would become pronounced if the power distribution system and household appliances had been designed for a lower voltage (say, 12 V rms)? For a higher voltage (say, 12 kV)?