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ELECTRICAL ENGINEERING DESIGN AND TUTORIAL RESOURCES




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Current Rank: 36 (Arts & Craft)
URL: http://electricalengineeringdesigns.blogspot.com/
Site Description: ELECTRICAL ENGINEERING CIRCUITS ALTERNATING CURRENT DIRECT CURRENT GENERATION TRANSMISSION LINES PROTECTIVE RELAYING SUBSTATION SCADA DISTRIBUTION SYSTEM POWER SYSTEM FAULT ANALYSIS
Date Joined: Jun 12, 2012


Latest Blog Posts

WHAT IS A LUMINAIRE? BASIC INFORMATION AND TUTORIALS
on Dec 13, 2012 in Illumination NEC defines a luminaire as a complete lighting unit consisting of a light source such as lamp or lamps, together with the parts designed to position the light source and connect it to the power supply.* Luminaire is the international term for “lig...



FLUORESCENT BALLASTS TYPES BASIC INFORMATION AND TUTORIALS
on Dec 13, 2012 in Illumination Preheat. Preheat ballasts are connected in a simple series circuit. They are easily identified because they have a “starter.” One type of starter is automatic and looks like a small roll of Lifesavers with two “buttons” on one end. Anoth...



ENERGY SAVING BALLAST BASIC INFORMATION AND TUTORIALS
on Dec 13, 2012 in Power Factor Illumination The market for magnetic (core and coil) ballasts is shrinking! The National Appliance Energy Conservation Amendment of 1988, Public Law 100-357 prohibited manufacturers from producing ballasts having a power factor of less than 90%. Ballasts that...



MISMATCHING OF FLUORESCENT LAMPS AND BALLASTS BASIC INFORMATION AND TUTORIALS
on Dec 13, 2012 in Illumination Be sure to use the proper lamp for a given ballast. Mismatching a lamp and ballast may result in poor starting and poor performance, as well as shortened lamp and/or ballast life. The manufacturer’s ballast and/or lamp warranty may be null and...



LAMP COLOR TEMPERATURE BASIC INFORMATION AND TUTORIALS
on Dec 13, 2012 in Illumination Lamp color temperature is rated in Kelvin degrees, and the term is used to describe the “whiteness” of the lamp light. In incandescent lamps, color temperature is related to the physical temperature of the filament. In fluorescent lamps where...



GROUNDING GRID DESIGN CRITICAL PARAMETERS BASIC INFORMATION
on Dec 7, 2012 in Grounding The following site-dependent parameters have been found to have substantial impact on the grid design: maximum grid current IG, fault duration tf, shock duration ts, soil resistivity ρ, surface material resistivity (ρs), and grid geometry. Seve...



SUBSTATION CABLE VOLTAGE RATING BASIC INFORMATION AND TUTORIALS
on Dec 7, 2012 in Substation Cables The selection of the cable voltage rating is based on the service conditions of 2.1, the electrical circuit frequency, phasing, and grounding configuration, and the steady-state and transient conductor voltages with respect to ground and other energi...



CAPACITOR INSTALLATION SYSTEMS BENEFITS BASIC INFORMATION AND TUTORIALS
on Dec 7, 2012 in Capacitors Power Factor Losses Power Factor Correction What Are The Benefits Of Installing Capacitors? Power capacitors provide several benefits to power systems. Among these include power factor correction, system voltage support, increased system capacity, reduction of power system losses, reactive...



CLASSIFICATION OF CABLES USED IN SUBSTATION BASIC INFORMATION
on Dec 7, 2012 in Substation Cables No single cable characteristic should be emphasized to the serious detriment of others. A balance of cable characteristics, as well as good installation, design, and construction practices, is necessary to provide a reliable cable system. Service...



WHAT IS POWER QUALITY ALL ABOUT? BASIC INFORMATION
on Dec 3, 2012 in Power Quality Electric power quality has emerged as a major area of electric power engineering. The predominant reason for this emergence is the increase in sensitivity of end-use equipment. The various aspects of power quality as it impacts utility companies and...



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