What happens when the solar PV plant absorbs reactive energy from the grid where it required not to do so by governing standards?

Describe how varying solar irradiance affects the I-V characteristics of a PV device?

Power engineering book Mehta

A 150 – microfarad capacitor is connected to a 220 – volt, 60 – cycle source. Calculate (a) the capacitive reactance, (b) the current in the circuit, (c) the average power taken by the capacitor, and (d) the maximum power delivered to the capacitor. DRAW THE PHASOR DIAGRAM IF POSSIBLE. ROUND OFF TO FOUR DECIMAL PLACES

56. A single phase thyristor adjust line spacing converter with a resistive load is shown below: V₂ = V₂ sinet SCR ER V₂ If the supply voltage is 230V (rms) at 50 Hz, calculate ripple factor for firing angle a -45° and R = 100 Q. (A) I (C) 1.21 (B) 1.11 (D) 1.44

Explain the principles of power quality in electrical systems and the factors affecting it, including harmonics and voltage sags.

Semiconductor components such as diodes and transistors are easily damaged by the high temperatures of soldering, so care must be taken to protect these components during the soldering process. One way to do this is to use a heat sink to draw heat away from the component without cooling the connection point too much. Heat sinks made out of sheet metal may be temporarily clipped to the component leads, one at a time, to prevent the solder's high temperature from thermally conducting all the way to the component body:   In the absence of a formal heat sink, can you think of any ways to fashion your own ïmpromptu" heat sinks out of commonly available tools and/or objects?

A) An equalizer is a jumper used to parallel the series field of two compound DC generators when the two generators are being run in parallel to share an electrical load. a) true b) false B) The ohmic value of an equalizer is not important as long as it is made out of copper. a) true b) false C) How is the efficiency usually expressed?a) in watts b) in kilowatt-hours c) in percentage d) none of the above

1-Which type of power supply is required to power up a LVDT? does not matter AC no power supply required DC 2- In a flat-film strain gage having a rectangular cross section, if the thickness of the film is reduced by 20%, while all other parameters are kept constant, what is the ratio of the new resistance to the old resistance value?

A dc-source has positive and negative polarities. Is it correct to say that an ac-voltage source has no polarity? Why or why not?