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Monthly Archive for: «September, 2012»

Energy and Power

Nikola Tesla – Everything is the Light

Once, in 1899, Nikola Tesla had an interview with certain journalist John Smith, when Tesla said “Everything is the Light“. In one of its rays is the fate of nations, each… Read more

Sep 12, 2012 | By Edvard

Tesla meets King Peter II of Yugoslavia on July 15, 1942
Electric Motor

LT / Medium / HT VFD Used In the Industry (1)

In modern plants, there are number of drives like Milling Plant Drive, Hydraulic Drive, DC Motor Drive and AC Motor Drive of adequate capacities are available. There is lot of… Read more

Sep 10, 2012 | By sprabakar22

LT / Medium / HT Variable Frequency Drives (VFD) In the Industry
Electronics

Under the Hood of LEDs (Light Emitting Diodes)

LED lamps, or Light Emitting Diodes, are becoming more and more common. Having been used for some time in products such as digital watches, remote controls and brake lights, they… Read more

Sep 08, 2012 | By Paul Blythe

Under the hood of LEDs (Light emitting diodes)
Energy and Power

Transformer Heat, Copper and Iron Losses

The thermal ratings of a transformer are determined by the following three factors: The amount of heat produced in the windings and connections. The amount of heat produced in the… Read more

Sep 06, 2012 | By Edvard

Transformer Heat, Copper and Iron Losses
Protection

Transformer differential protection (ANSI 87T)

Transformer differential protection protects against short-circuits between turns of a winding and between windings that correspond to phase-to-phase or three-phase type short-circuits. If there is no earthing connection at the… Read more

Sep 05, 2012 | By Edvard

SIPROTEC 4 7UT6 Differential Protection Relay for Transformers
HVAC

How to Maximize Chiller Efficiency?

Chillers are the single largest energy-using component in most facilities, and can typically consume over 50% of the electrical usage. Chillers use approximately 20% of the total electrical power generated… Read more

Sep 04, 2012 | By Edvard

How to Maximize Chiller Efficiency? (on photo Carrier Chiller Water Cooled)
Energy and Power

Getting Electricity From Solid Oxide Fuel Cell

Abstract Introduction Fuel Cell Working Principle of SOFC Materials Selection and Processing Cathode Electrolyte Anode Interconnection Types of SOFC Merits and Demerits Applications Stationary energy sources Transportation Military applications SOFC-GT… Read more

Sep 03, 2012 | By vinod ramireddy

Getting Electricity From Solid Oxide Fuel Cell
Power Substation

Transformers Connected Directly to Generators

Power transformers connected directly to generators can experience excitation and short-circuit conditions beyond the requirements defined by ANSI/IEEE standards. Special design considerations may be necessary to ensure that a power transformer… Read more

Sep 01, 2012 | By Edvard

Generator transformer


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