Currently there are over 350 Toshiba D-EHC systems in the world and the TOSMAP DST/ev features the most advanced performance and enhanced reliability in a fully integrated platform. Incorporated turbine supervisory instruments such as vibration, expansion, and eccentricity.

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The TOSHIBA's D-EHC is a control system developed especially for a power generation plant turbine, based on requirements learned through many years of experiences of power generation plants in all over the world.

• State-of-the-art retrofit solutions for all Toshiba steam turbine generator control systems (TOSMAP D-EHC and D-AVR) • 24-7 support based in the USA • Emerson patented “look ahead” Rotor Stress solution for faster startups • Replacement of interposing valve control equipment with native Ovation Valve Positioner module (simplified ...

The document describes Toshiba's Digital Electro-Hydraulic Control (D-EHC) system for controlling steam turbines in power plants. The D-EHC uses microprocessor-based controllers and distributed architecture to provide high reliability, safety controls, automatic start-up functions, and monitoring capabilities.

states that the turbine generator is equipped with a D-EHC system that combines the capabilities of redundant processors and high-pressure hydraulics to regulate steamflow through the turbine. The system provides the functions of speed control, load control, and automatic turbine control.

1. State the purposes of the turbine electrohydraulic control (EHC) system. 2. Describe the sequence of events that results when a turbine trip is initiated mechanically or electrically. 3. Explain the functions of the following emergency trip system components: a. Mechanical trip valve, b. Lockout valve, c. Master trip solenoid valve, d.

performance fulfills the set requirements, and the new D- EHC, D-AVR (Digital-Automatic Voltage Regulator) and GPR have been handed over to the customer as planned.

To meet the growing demand for energy while reducing greenhouse gases, we are continuing our efforts to develop new energy-related technologies and to supply nuclear power generation systems with no carbon dioxide emissions as well as large-capacity and high-efficient power generation and transformation equipment.

Nov 14, 1997 · Here, the authors describe the development of the DEH-IIIA digital electrohydraulic control technology for electric utility steam turbine applications. Conferences > 1997 Fourth International Con...