Question

Q#2: Put sign (V) for the correct answer and wrong sign (X) for the wrong answer: The load demand of the PV solar system should be 50% of rated load in order to get the nominal efficiency of Inverter. The movement of electrons between atoms is called nuclear energy 2- ( )

Answer 1

1. The load demand of the PV solar system should be 50% of rated load in order to get the nominal efficiency of Inverter (Correct)

2. The movement of electrons between atoms is called nuclear energy (Wrong)

Refer to the images for explanation.

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NTS/ Wh The ow Into efficiency (n) of an invertor indicates much DC power can be converted AC power. efficiency value is not fined and usually operation at The The efficiency curve for it's different w loads : ab Ebbideeney can The output is always less than input because of heat loss and standby I loss to keep the invertor running 0.75 + 10.2 0.2 0.2 0.4 0.5 0.6 0.7 Output powerforated power figure 1: OEM figure : OEM Invertor Graph Invertor drop • The nominal efficiency is called as peak efforeeney also can be achieved only! when load demand is greater than 50% of the rated load. I siciency a an invertor decreases noticeably becatuse I the standby losses are the salue at all output power levels. Therefore correct (V). lefer to Stand-Alone thoproltaic systems - A handbook Recommended Design Practices by Sandia good Palonies W ш м! У тъЯмалом. ) Vanong
  
YNTHNIS/METTINGS - (2) Nuclear energy is the energy present present inside melde nucleus of abou energy each Nuclear reactors generate huge ancount of heat when the many atomic nuclei. combine (fusion) or big nuclei breaks down (fission) in a controlled environment Particles involved may be neutrous, photons or neutrinos. • The movement of electrons between ahorus is called electricity. Although nucleur energy can be used to generate electricity but they are not the same. Therefore Werong (X)