62 What is a stand-alone PV system considered under NEC labeling requirements? Power source Energy generator Storage system D Interactive system 63 What is the purpose of visual inspection when commissioning a PV system? To perform a detailed analysis of system output To ensure operation of ground-fault protection devices To confirm all modules are producing as expected, given environmental conditions D To identify easy-to-find, deficient details of installation without the use of instrumentation Domain: Installation 64 Which tool may be used to identify loose electrical connections that create heat? Refractive index hydrometer Infrared non-contact thermometer C Irradiance meter D Digital multimeter

62 What is a stand-alone PV system considered under NEC labeling requirements? Power source Energy generator Storage system D Interactive system 63 What is the purpose of visual inspection when commissioning a PV system? To perform a detailed analysis of system output To ensure operation of ground-fault protection devices To confirm all modules are producing as expected, given environmental conditions D To identify easy-to-find, deficient details of installation without the use of instrumentation Domain: Installation 64 Which tool may be used to identify loose electrical connections that create heat? Refractive index hydrometer Infrared non-contact thermometer C Irradiance meter D Digital multimeter

Power System Analysis and Design (MindTap Course List)

6th Edition

ISBN:9781305632134

Author:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Publisher:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Chapter3: Power Transformers

Section: Chapter Questions

Problem 3.56P: Three single-phase two-winding transformers, each rated 3kVA,220/110volts,60Hz, with a 0.10 per-unit...

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Consider a 5A ammeter is connected to the secondary side of a 100/5A current transformer (CT) in order to measure the current of the circuit. Safety considerations require that the CT has to be short circuited (or the primary circuit switched off) during a replacement of the ammeter. Explain why this is needed.
Consider Two same size Parallel connected PV modules,each with the specification as Po=100W, Voc= 24.5V and Isc=5A.then choose the correct Statement Refer to this connection. a. The output power and voltage from this panel is Po=50W,Voc= 24.5V b. The output power and voltagefrom this panel is Po=200W,Voc= 24.5V c. The output power and voltage from this panel is Po=200W,Voc= 49.0V d. The output power and voltage from this panel is Po=100W,Voc= 24.5V
A generating station has four bus-bar sections. Each section is connected to tie-bar though 20% reactorsrated at 200 MVA. Generators of total capacity 100 MVA and 20% reactance are connected to each busbar section. Calculate the MVA fed to a fault under short-circuit condition one one of the bus-bars.[1000 MVA]
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Combination circuit what is PT? RT? IT? Voltage Across each load?
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