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Monthly Archive for: «February, 2012»

Why do we find electric motor drive very important?

Electric motors impact almost every aspect of modern living. Refrigerators, vacuum cleaners, air conditioners, fans, computer hard drives, automatic car windows, and multitudes of other appliances and devices all use… Read more

Feb 29, 2012 | Edvard

Under the Hood of Light Detector

Detectors of electromagnetic radiation in the spectral range from ultraviolet to far infrared are called light detectors. From the standpoint of a sensor designer, absorption of photons by a sensing… Read more

Feb 24, 2012 | Edvard

Light Detectors - Introduction And Purpose

220V DC system at thermal power station

The 220V DC system supplies direct current as source of operating power for control, signaling, relays, tripping and closing of switchgears, emergency motors of most important auxiliary systems. Under normal… Read more

Feb 15, 2012 | Bipul Raman

220V DC system at thermal power station

Protection Of Generators And Transformers

As Generators and transformers are major components of a power system, so it is quite necessary to take all the preventive measures for the protection of transformers and generators. These… Read more

Feb 11, 2012 | Bipul Raman

Protection of generators and transformers (Siprotec numerical protection relays)

Discussing About LV And HV Electrical Cables

Space is really a critical criterion when discussing electrical cables and wires. In a low-voltage (LV) plastic-sheathed cable with conductor cross-sections of up to 10 mm2 per conductor or in… Read more

Feb 08, 2012 | Edvard

High-voltage cable cross section

Purpose and maintenance of transformer bushings

The two most common types of bushings used on transformers as main lead entrances are solid porcelain bushings on smaller transformers and oil-filled condenser bushings on larger transformers. Solid porcelain… Read more

Feb 05, 2012 | Edvard

Transformer porcelain bushings spare parts


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