METHOD FOR ESTIMATING CONDUCTOR TEMPERATURE IN POWER CABLE IN UNDERGROUND PIPELINE

Title:

METHOD FOR ESTIMATING CONDUCTOR TEMPERATURE IN POWER CABLE IN UNDERGROUND PIPELINE

Document Type and Number:

Japanese Patent JP2004239623

Kind Code:

A

Abstract:

To provide the estimation method of a conductor temperature in the entire longitudinal direction of a power cable by using temperature data outside a pipeline and current value data flowing through the power cable that can be measured easily.

In the conductor temperature estimation method of the power cable in an underground pipeline, the conductor temperature of the power cable laid inside the pipeline being buried in the underground is estimated by using the temperature data outside the pipeline and the current value data of the power cable. In the conductor temperature estimation method, atmospheric temperature data at a discontinuity in the longitudinal direction of the pipeline or the surface temperature data of the power cable are used to estimate the conductor temperature in the entire longitudinal direction of the power cable between the discontinuities of the pipeline.

Inventors:

KUBO MASAAKI
IEMURA SHOZO
YAMAGUCHI YASURO
NARUI YOKO
MARUYAMA SATORU
TAGUCHI KOJI
TANAKA HIDEO

Application Number:

JP2003025999A

Publication Date:

August 26, 2004

Filing Date:

February 03, 2003

Export Citation:

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Assignee:

KANSAI ELECTRIC POWER CO
FURUKAWA ELECTRIC CO LTD

International Classes:

G01K7/00; G01K1/20; H02G1/06; H02G9/00; (IPC1-7): G01K7/00; G01K1/20; H02G1/06; H02G9/00

Attorney, Agent or Firm:

山▲崎▼ 京介

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