The 345 kV underground/underwater Long Island Sound cable project

Journal Article · Thu Jul 01 00:00:00 EDT 1993 · IEEE Transactions on Power Delivery (Institute of Electrical and Electronics Engineers); (United States)

DOI:https://doi.org/10.1109/61.252603· OSTI ID:5921963

Grzan, J; Hahn, E I ^[1]; Casalaina, R V; Kansog, J O.C. ^[2]

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1. New York Power Authority, White Plains, NY (United States)
2. Ebasco Services Inc., Lyndhurst, NJ (United States)

A high voltage underground/underwater cable system was installed to increase the transmission capacity from the mainland of New York to Long Island. In terms of weight and diameter, the self-contained, fluid-filled (SCFF) cable used for the underwater portion of the project is the largest underwater cable in the world. The use of high-pressure, fluid-filled (HPFF) pipe-type cable on the land portion represents the largest application of paper-polypropylene-paper (PPP) insulated cable in the United States. State-of-the-art technologies were implemented in the use of fiber optic cables for relay protection and SCADA/RTU, temperature monitoring and leak detection systems, SF[sub 6] gas-insulated substations, and underwater cable laying and embedment techniques. This paper discusses the design and installation of a 750 MVA, 43 km (26.6 mi), 345 kV underground/underwater electric transmission system installed by the New York Power Authority (NYPA).

• OSTI ID: 5921963
• Journal Information: IEEE Transactions on Power Delivery (Institute of Electrical and Electronics Engineers); (United States), Vol. 8:3; ISSN 0885-8977
• Country of Publication: United States
• Language: English

Related Subjects

24 POWER TRANSMISSION AND DISTRIBUTION
LONG ISLAND SOUND
UNDERGROUND POWER TRANSMISSION
POWER TRANSMISSION LINES
CONSTRUCTION
DESIGN
ATLANTIC OCEAN
ESTUARIES
POWER TRANSMISSION
SEAS
SURFACE WATERS
240301* - Power Transmission Lines & Cables- Power Cables- (1990-)