Search results
Results From The WOW.Com Content Network
In a shunt-wound generator, output voltage varies inversely with load current. In a series-wound generator, output voltage varies directly with load current. A combination of the two types can overcome the disadvantages of both. This combination of windings is called a compound-wound dc generator. [2]
A self-excited shunt-wound DC generator is shown on the left, and a magneto DC generator with permanent field magnets is shown on the right. The shunt-wound generator output varies with the current draw, while the magneto output is steady regardless of load variations. A separately-excited DC generator with bipolar field magnets.
Dick-Kerr 500 kW Compound Wound generator 500–550 V DC. There was a separate battery room which supplied additional current when the demand on the system was high. [3] In 1906 additional plant was added raising the capacity to 3 × 500 kW and 1 × 1,000 kW generators. [3]
Description: A self-excited shunt-wound DC generator is shown on the left, and a magneto DC generator with permanent field magnets is shown on the right. The shunt-wound generator output varies with the current draw, while the magneto output is steady regardless of load variations. Page 196 Main Wikipedia article: Excitation (magnetic)
A Ward Leonard control is usually used for controlling a shunt or compound wound DC motor, and developed as a method of providing a speed-controlled motor from an AC supply, though it is not without its advantages in DC schemes. The AC supply is used to drive an AC motor, usually an induction motor that drives a DC generator or dynamo. The DC ...
In Kosovo, a state-owned energy company plans to destroy a village to make way for expanded coal mining as the government and the World Bank plan for a proposed coal-burning power plant. The government has already forced roughly 1,000 residents from their homes. Many former residents claim officials violated World Bank policy requiring borrowers to restore their living conditions at equal or ...
A field coil is an electromagnet used to generate a magnetic field in an electro-magnetic machine, typically a rotating electrical machine such as a motor or generator. It consists of a coil of wire through which the field current flows. In a rotating machine, the field coils are wound on an iron magnetic core which
Some troops leave the battlefield injured. Others return from war with mental wounds. Yet many of the 2 million Iraq and Afghanistan veterans suffer from a condition the Defense Department refuses to acknowledge: Moral injury.