How to protect communications lines from high substation voltages

Article Abstract:

Protecting wire-line communications circuits from ground potential rise takes the form of isolating the line from the source of extraneous current. This is effected either through an insulating device or a neutralizing transformer which increases the effective grounding surface. One of the latest innovation in grounding is the use of the grounding cement, which increases grounding by a factor of 200.

Electric Distribution Equipment, Power, Distribution, and Specialty Transformer Manufacturing, Electric Power Transmission Equip, Methods, Safety and security measures, Telecommunications equipment, Communications equipment, Electric currents, Electric power supply, Constant-current, Constant current power supplies, Grounding (Electricity), Electric power transmission equipment

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PGE's resource center guides customers to the right light

Article Abstract:

Portland General Electric Co.'s Energy Resource Center, a lighting laboratory, boasts a staff committed to researching state-of-the-art illumination technology. The utility supplies mechanical systems such as variable speed motors in an effort to improve energy efficiency.

Electric services, Aircraft engines and engine parts, Steel investment foundries, Electric utilities, Services, Contracts, Precision Castparts Corp., PCP, Portland General Electric Co.

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