differentiate between ac and DC generator
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Difference Between AC and DC Generator1. Design of AC and DC Generator
The stator in DC generators is in form of a hollow roller with magnetic poles on the inside. The rotor consists of a core, a shaft, a winding and a collector. The core consists of mutually insulated dynamo sheets with grooves. The grooves are wrapped in copper wire whose ends are connected to the collector. The collector is in the form of slices attached to the shaft. Carbon brushes move along the collector and can charge/discharge current. The stator of AC generators has on the inside of the roller a longitudinal grooves in which there are windings, in contrast to a DC electromotor where magnetic poles are located. When the current flows through the windings in the stator, a magnetic field appears. The rotor is similar to that of a DC generator, only instead of the collector on the shaft there are two mutually isolated rings. Rotating of the rotor creates alternating current in the stator coils which is passed to the receiver.
2. Application of AC and DC Generator
Dc power machines can work both as a motor and generator. DC generators suppressed the semiconductor rectifier use. AC generators are vastly used for electrical energy generating/transmitting.
The stator in DC generators is in form of a hollow roller with magnetic poles on the inside. The rotor consists of a core, a shaft, a winding and a collector. The core consists of mutually insulated dynamo sheets with grooves. The grooves are wrapped in copper wire whose ends are connected to the collector. The collector is in the form of slices attached to the shaft. Carbon brushes move along the collector and can charge/discharge current. The stator of AC generators has on the inside of the roller a longitudinal grooves in which there are windings, in contrast to a DC electromotor where magnetic poles are located. When the current flows through the windings in the stator, a magnetic field appears. The rotor is similar to that of a DC generator, only instead of the collector on the shaft there are two mutually isolated rings. Rotating of the rotor creates alternating current in the stator coils which is passed to the receiver.
2. Application of AC and DC Generator
Dc power machines can work both as a motor and generator. DC generators suppressed the semiconductor rectifier use. AC generators are vastly used for electrical energy generating/transmitting.
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Answer:
•Alternative current:
1) The current whose magnitude changes continuously and direction changes periodically.
2) The source of AC is generator.
3) AC is supplied at 220V.
4) The frequency of AC is 50Hz and current changes it's direction 100 times in 1 second.
•Direct current:
1) The current whose magnitude does not change with time.
2) The source of DC current is cell, battery.
3) The shock of DC is not dangerous.
4) The frequency of DC is 0Hz.
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