The function of the steam turbine protection system is often confused with the control system, but in fact the two systems are entirely separate. The protection system operates only when any of the control system set point parameters are exceeded , and the steam turbine will be damaged if it continues to operate.
What is turbine how it works?
In a turbine generator, a moving fluid—water, steam, combustion gases, or air—pushes a series of blades mounted on a rotor shaft. The force of the fluid on the blades spins/rotates the rotor shaft of a generator. The generator, in turn, converts the mechanical (kinetic) energy of the rotor to electrical energy .
What is turbine protection?
The Mitsubishi Electric Turbine Protection System (TPS) provides an additional independent protection function for the steam turbine and generator. The TPS detects undesirable operating conditions and initiates trips to avoid damaging the steam turbine.
What is a turbine case?
A turbine (/ˈtɜːrbaɪn/ or /ˈtɜːrbɪn/) (from the Greek τύρβη, tyrbē, or Latin turbo, meaning vortex) is a rotary mechanical device that extracts energy from a fluid flow and converts it into useful work. ... Gas, steam, and water turbines have a casing around the blades that contains and controls the working fluid .
What is meant by turbine trip?
A turbine trip is the emergency shutdown of a power-generation turbine due to unexpected events . ... Many events can cause a turbine trip, including: turbine overspeed condition where the turbine accelerates over its design speed, typically by 10%
Where is turbine used?
Turbines are used in many different areas, and each type of turbine has a slightly different construction to perform its job properly. Turbines are used in wind power, hydropower, in heat engines , and for propulsion. Turbines are extremely important because of the fact that nearly all electricity is generated by them.
What is turbine overspeed trip?
Outdated Mechanical Trip Devices Should be Replaced! Background. The steam turbine overspeed event occurs when little or no energy is being consumed by the driven equipment , whether a generator, pump or compressor, and too much steam is provided to steam turbine.
How many types of turbine are there?
A turbine is a work producing device. Production of power is achieved by expanding a fluid. Mainly, there are two different types of turbines, steam and gas turbines. An ideal turbine has an isentropic process.
How can I generate electricity at home for free?
- Residential Solar Panels. Every ray of sunshine that lands on your roof is free electricity for the taking. ...
- Wind Turbines. ...
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- Solar Water Heaters. ...
- Geothermal Heat Pumps.
Who invented turbine?
The modern steam turbine was invented in 1884 by Charles Parsons , whose first model was connected to a dynamo that generated 7.5 kilowatts (10.1 hp) of electricity. The invention of Parsons’ steam turbine made cheap and plentiful electricity possible and revolutionized marine transport and naval warfare.
Which turbine has highest speed?
The specific speed of Kaplan turbine ranges from 600 to 1000 rpm. It is a low head axial flow turbine. From the table, we can conclude that the Kaplan turbine has the highest specific speed.
What are four types of turbines?
While turbines can be classed as either impulse or reaction according to the way they function, there are four broad types of turbines categorized according to the fluid that supplies the driving force: steam, gas, water, or wind.
What are the three types of turbine blades?
Turbine blades are classified into three types: Impulse, reaction, and impulse-reaction . ducts as turbine blades.
What causes turbine trip?
In a turbine trip event, a malfunction of a turbine or reactor system causes the turbine to trip off the line by abruptly stopping steam flow to the turbine. The common causes for a turbine trip are for example: the speed of the turbine shaft increases beyond specific value (e.g. 110%) – turbine overspeed.
What is a trip speed?
The speed at which the independent emergency overspeed device operates to shut-down a prime mover .
What happens when a power station trips?
When a generator trips, it means that it is suddenly, and usually unexpectedly, disconnected from the transmission network, and thus stops supplying electricity to consumers . The key words here are suddenly and unexpectedly.
