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Supplier: Dresser-Rand
Description: Dresser-Rand’s Gimpel® electro-hydraulic trip throttle valve (EHTTV) is a microprocessor-contr olled trip throttle valve with a self-contained electro-hydraulic actuator. Designed to prevent the catastrophic failure of steam turbines, the EHTTV stops the
- Actuation: Mechanical Device, Electro-hydraulic
- Connection: Bolt Flange
- Number of Ports/Ways: 2
- Pressure Rating: 150 to 2500 psi
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Supplier: Schutte & Koerting
Description: Throttle Trip Valves provide effective flow control and emergency shut-off operation in a single, highly reliable valve assembly. As throttle valves, they are used to regulate flow of steam and gas in large, high-pressure pipe lines, such as the main steam
- Actuation: Manual / Hand, Mechanical Device
- Pressure Rating: 150 to 1500 psi
- Valve Type: Shut Off Valves, Control Valves
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Supplier: ASME
Description: This standard is no longer an American National Standard or an ASME approved standard as of March 10, 2003. It is available for historical reference only. This Code is applicable to steam turbine generator units of 500 kw and larger and provides: (a) Recommended specifications for
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Supplier: ASME Standards and Certification
Description: This standard is no longer an American National Standard or an ASME approved standard as of March 10, 2003. It is available for historical reference only. This Code is applicable to steam turbine generator units of 500 kw and larger and provides: (a) Recommended specifications for
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Description: for drum and once-through, fossil fuel power plant boilers. The turbine bypass system should provide for cold start-up, warm start, hot restart, load rejection, turbine shutdowns, and unit trips. The system shall be designed to provide pressure, temperature, and flow control of
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Troubleshooting Process Plant Control
I’ve made a list of the process parameters that we have to make sure will trigger the steam turbine trip valve to shut off: .
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An automatic synthesis system for start-up operating procedures of boiler plants
… FDF damper E17: Furnace V1: Steam turbine inlet valve V2: Steam turbine inlet drain valve V3: Steam turbine inlet block valve V4: Steam turbine flow control valve V5: Steam turbine warming-up valve V6: Steam turbine trip valve V7: Steam turbine governor …
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Power System Protection 3: Application
=> § Electrical solenoid on turbine to release fluid & trip turbine steam valves .
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Perspectives on reactor safety. Revision 1
… Full or partial closure of MSIV (one loop) Increase in FW flow (one loop) Loss of condensate pumps (one loop) Steam generator leakage Condensate leakage Miscellaneous leakage in secondary system Sudden opening of steam relief valves Turbine trip , throttle valve closure, EHC …
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Modeling of the TMI-2 (Three Mile Island Unit-2) accident with MELPROG/TRAC and calculation results for Phases 1 and 2
Loss of main feedwater Turbine trip Steam stop valves in steam chest ciose AFW pumps start Pressure >15.65 MPa: POW .
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Benefits of upgrading: paper mill generator protection
Mechanical Devices “ Turbine Tripped ” Steam Valves Closed .
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Bookshelf and Unified Agenda > Independent Agencies / Commissions > Nuclear Regulatory Commission > NUREG Series Publications > NUREG-1825 - Safety Evaluation ...
Dumping the auto-stop oil header pressure or the EH fluid pressure to the actuators will close the steam valves ( tripping the turbine ).
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Upgrading the protection and grounding of generators at petroleum and chemical facilities
The first device tripped is the steam turbine valves .
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Expanders for Oil and Gas Operations: Design, Applications, and Troubleshooting > Nitric Acid Expanders for Chemical Applications
Steam turbine trip and throttle valve closes in less than one second.
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EXPERIMENTAL GAS COOLED REACTOR. FINAL HAZARDS SUMMARY REPORT. VOLUME I. DESCRIPTION AND HAZARDS EVALUATION (Book 1 and Book 2)
However, when the turbine stop valve trips , steam flow stops completely and the steam main pressure increases.