A drawing hall 30 meters by 15 meters with a ceiling height of 5 meters is to be provided with a general illumination of 120 lumens per meter square; taking a coefficient of utilization of 0. ... and total wattage. Take luminous efficiency of fluorescent tube as 40 lumens per watt for 80-watt tubes. Answer : To determine the number of fluorescent tubes required for the drawing hall, along with their spacing, mounting height, and total wattage, follow these steps: ### 1. **Calculate the Total ... meters This setup will ensure that the drawing hall achieves the desired level of illumination uniformly....
What is the purpose of a power factor protection scheme in capacitor banks? Answer : A **power factor protection scheme** in capacitor banks is designed to ensure the safety, stability, and efficient operation of the electrical power system by addressing issues related to power ... , capacitor banks could become a source of system instability, equipment damage, or safety hazards....
What is the purpose of a power factor correction (PFC) circuit? Answer : A power factor correction (PFC) circuit improves the efficiency of electrical systems by addressing the power factor of an electrical load. To understand its purpose, let's break down a ... power is used more effectively and reducing unnecessary costs and strain on the electrical infrastructure....
What is the purpose of power factor correction in power supplies? Answer : Power factor correction (PFC) is an important aspect of power supplies, especially in industrial and commercial applications. Understanding its purpose requires a look at the concepts of ... implementing power factor correction is a vital consideration for anyone involved in electrical systems....
What is the purpose of a flicker meter? Answer : A flicker meter is used to measure and analyze flicker in lighting systems. Flicker refers to the visible variation in light output that can occur in electric lighting, and it can ... compliance with standards, diagnose issues, and optimize lighting systems for improved performance and user comfort....
