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HITACHI REVIEW

Hitachi

700-m 400-MW Class Ultrahigh-head Pump Turbine

AUTHORS

Kozo Ikeda Manager of the Electric Technology Group, Construction Div., Tokyo Electric Power Co.
Morihito Inagaki Manager of the Hydroelectric Power Group, Construction Div., Tokyo Electric Power Co.
Kazuo Niikura Thermal & Hydroelectric Systems Div., Power & Industrial Systems, Hitachi, Ltd.
Katsuhiro Oshima Thermal & Hydroelectric Systems Div., Power & Industrial Systems, Hitachi, Ltd.

OVERVIEW

The first unit of the world-leading ultrahigh-head pump turbine was commissioned in December 1999 at the Tokyo Electric Power Company (TEPCO)'s Kazunogawa pumped-storage power plant in Japan. This paper describes several state-of-the-art technologies applied to the hydraulic and mechanical designs, which ensure the pump turbine's high reliability and stable operation. Kazunogawa; vertical Francis-type single-stage reversible pump turbine, turbine head 728 m, output 412 MW, maximum pumping head 779 m, speed 500 min-1.

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See PDF file for details (PDF format, 276kByte)

RELEVANT SITES

open in new window Power & Industrial Systems
open in new window Turbine Plant Design Dept.
open in new window The Hitachi Hyoron (Japanese Only)

KEYWORDS

Kazunogawa, Pump Turbine, Actual head test, Key component test, Ultra-high head

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