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Monthly Archive for: «May, 2012»

Electric Vehicles and the Smart Grid

Another source of urgency for the smart grid is meeting goals for getting more “clean” cars and vehicles on the road. Electric vehicles largely eliminate greenhouse gas emissions from vehicle… Read more

May 30, 2012 | Smart Grid

Toyota Prius

Electric Power Quality and Lighting (part 2)

Continued from first part: Electric Power Quality and Lighting (part 1) Power factor is a measure of how effectively a device converts input current and voltage into useful electric power…. Read more

May 29, 2012 | Energy Efficency

Electric Power Quality and Lighting

Electric Power Quality and Lighting (part 1)

Concerns about the effects of lighting products on power distribution systems have focused attention on power quality. Poor power quality can waste energy and the capacity of an electrical system;… Read more

May 26, 2012 | Energy Efficency

Electric Power Quality and Lighting

Process Design Basics for Station Facility

The purpose of this article is to establish the design basis electrical system Front End Engineering Design (FEED) and data design or standards uses in the gathering stations facility will… Read more

May 25, 2012 | Energy and Power

Process flow diagram

Transformer Connection Star-Star

The windings of three phase transformers may be connected in by Y or Δ in the same manner as for three single phase transformer. Since the secondary’s may be connected either in… Read more

May 23, 2012 | Transformers

Dry type cast resin transformer

Special considerations when selecting transformer protection

Current transformer ratio selection and performance require special attention when applying transformer protection. Unique factors associated with transformers, including its winding ratios, magnetizing inrush current, and the presence of winding… Read more

May 19, 2012 | Energy and Power

Dry-type power transformers 11/0.42kV 2000kVA

Power Measurement In AC Circuits

Power measurement in AC circuits can be quite a bit more complex than with DC circuits for the simple reason that phase shift complicates the matter beyond multiplying voltage by current… Read more

May 15, 2012 | Electrical Lectures

GE Watthour Meter
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