Menu
Search

Monthly Archive for: «February, 2013»

An Overview Of Short Circuit Current (part 2)

Continued from previous technical article: An Overview Of Short Circuit Current (part 1) Reactance Sub transient reactance Xd” is the apparent reactance of the stator winding at the instant short circuit occurs, and it… Read more

Feb 27, 2013 | Asif Eqbal

An Overview Of Short Circuit Current - Part 2

An Overview Of Short Circuit Current (part 1)

Basic concept There are essentially four types of faults: three-phase, single line-to-ground, double line-to-ground, and line-to-line. Each of these types of faults can result in different magnitudes of fault current. In all types, however,… Read more

Feb 25, 2013 | Asif Eqbal

An Overview Of Short Circuit Current (part 1)

Super Capacitors – Different Than Others (part 1)

Introduction to Super Capacitors Capacitors store electric charge. Because the charge is stored physically, with no chemical or phase changes taking place, the process is highly reversible and the discharge-charge cycle can be repeated over… Read more

Feb 23, 2013 | sravankumarpadala

Different then others - Super Capacitors

Things You Should Know About Medium Voltage GIS

Content Environmental Concerns Safety Concerns Special Handling Procedures Installation Concerns Operation and Maintenance Concerns End of Life / Recycling Concerns Conclusion Introduction to GIS (Gas Insulated Switchgear) Medium voltage (5-38 kV) gas insulated switchgear… Read more

Feb 20, 2013 | Edvard

Things You Should Know About Medium Voltage GIS

Direct Starting Of Squirrel-Cage Induction Motors

Introduction The direct starting (Direct On Line, DOL) is the simplest and most cost-efficient method of starting a motor. This is assuming that the power supply can easily deliver the high starting current and… Read more

Feb 16, 2013 | Edvard

Direct Starting Of Squirrel-Cage Induction Motors

Using High-Speed Grounding Switches

Protection of power transformers // Automatic high-speed grounding switches are applied for protection of power transformers when the cost of supplying other protective equipment is deemed unjustifiable and the amount of system disturbance that… Read more

Feb 15, 2013 | Edvard

Using High-Speed Grounding Switches
Page 1 of 212