Search results
Results from the WOW.Com Content Network
English: Diagram of revolving-field single phase generator with four poles. As the rotor turns, the lines of force at fours poles are cut by the coils inducing current. The output from four coils are "in phase".
The most common type uses wire resistance, usually with fan cooling, and this type is often portable and moved from generator to generator for test purposes. Sometimes a load of this type is built into a building, but this is unusual. [4] Rarely a salt water rheostat is used. It can be readily improvised, which makes it useful in remote locations.
The rotor of a turbo generator is a non-salient pole type usually with two poles. [5] The normal speed of a turbo generator is 1500 or 3000 rpm with four or two poles at 50 Hz (1800 or 3600 rpm with four or two poles at 60 Hz). The rotating parts of a turbo generator are subjected to high mechanical stresses because of the high operation speed.
Download as PDF; Printable version; In other projects ... (shown as electric generator), (4) ... The power range varies from 1 megawatt up to 50 megawatts.
Due to high cost of a generator, a set of sensors and limiters will trigger the alarm when the generator approaches the capability-set boundary and, if no action is taken by the operator, will disconnect the generator from the grid. [3] D-curve expands with cooling. The D-curve for a particular generator can be expanded by improved cooling.
Students learn how to operate and maintain the Army's Multi-Unit 4.5 Megawatt electrical power plants, 3 Megawatt electrical power plants consisting of either the MEP-012A or MEP-208A 750 kilowatt generating units, and the Deployable Power Generation Distribution System (DPGDS) power system consisting of either the MEP-810A or B model.
A 500 MW Siemens multi stage steam turbine with generator set (rear, red) A hydrogen-cooled turbo generator is a turbo generator with gaseous hydrogen as a coolant . Hydrogen-cooled turbo generators are designed to provide a low- drag atmosphere and cooling for single-shaft and combined-cycle applications in combination with steam turbines . [ 1 ]
The only ships to use these nuclear reactors are the Nimitz-class supercarriers, which have two reactors rated at 550 MW th each. These generate enough steam to produce 140,000 shaft horsepower (104 MW) for each pair of the ship's four shafts [ 2 ] – two per propulsion plant – plus approximately 100 MW of electricity.