Calculate the number of luminaires required in the room of length 12.46m and Width 5.91m. If 100 W, 1356lm bulb is selected to install in that room with a required illuminance level of 169lx and each luminaire is equipped with 3 bulbs. Assume Utilisation and maintenance factor around 0.71.

Calculate the number of luminaires required in the room of length 12.46m and Width 5.91m. If 100 W, 1356lm bulb is selected to install in that room with a required illuminance level of 169lx and each luminaire is equipped with 3 bulbs. Assume Utilisation and maintenance factor around 0.71.

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

Chapter13: Transmission Lines: Transient Operation

Section: Chapter Questions

Problem 13.9P

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Concept explainers

HVDC

HVDC stands for high voltage direct current in the electric power transmission system. The high voltage direct current system uses direct current (DC) for the transmission of electrical power through transmission lines in contrast with the alternating current that is the AC system. The HVDC is used to transmit bulk power point-to-point through long distances transmission lines. Power is rapidly transferred because the efficiency of transmission lines is greatly increased over long distances due to HVDC lines.

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