Overview of electric transmission (technology and economics)

Conference · Sun Jan 01 04:00:00 EST 1978

OSTI ID:6742579

Forsyth, E B

At the present time bulk electricity transmission exists in power pools and, to a more limited extent, as interties between pools. A brief summary of the growth of these networks upto the present maximum service voltage of 765 kV is given. Only a small percentage of the transmission circuit mileage is placed underground due to both technical problems and high cost. These are explored together with a discussion of the advantages of dc transmission in special situations. System designers are faced with the increased cost of acquiring right-of-way while at the same time regulations governing maximum electric field gradients at the edges will necessitate wider corridors than is now the case. Developments are in hand to minimize the cost ratio of underground to overhead transmission but still provide acceptable technical characteristics. These were evalated in a systems study carried by the Philadelphia Electric Company for a 66 mile corridor carrying 10,000 MW with stringent security requirements. The future growth of bulk electric energy transmission depends on many factors including the total growth in energy needs and how much will be transmitted in an electrical form.

• Research Organization: Brookhaven National Lab., Upton, NY (USA)
• DOE Contract Number: EY-76-C-02-0016
• OSTI ID: 6742579
• Report Number(s): BNL-24398; CONF-780801-15
• Country of Publication: United States
• Language: English

Related Subjects

200301* -- Power Transmission & Distribution-- AC Systems
EHV & UHV-- (-1989)
200302 -- Power Transmission & Distribution-- DC Systems-- (1989-)
24 POWER TRANSMISSION AND DISTRIBUTION
AC SYSTEMS
CABLES
COMPARATIVE EVALUATIONS
CONDUCTOR DEVICES
COST
DC SYSTEMS
ECONOMICS
EHV AC SYSTEMS
EHV DC SYSTEMS
ELECTRIC CABLES
ELECTRICAL EQUIPMENT
ENVIRONMENTAL EFFECTS
EQUIPMENT
NORTH AMERICA
OVERHEAD POWER TRANSMISSION
PERFORMANCE
POWER SYSTEMS
POWER TRANSMISSION
RESEARCH PROGRAMS
SUPERCONDUCTING CABLES
TECHNOLOGY ASSESSMENT
UNDERGROUND POWER TRANSMISSION
USA