Distinguish between AC and DC generator
(any three points)
Answers
Answer:
The important difference between AC and DC generator
Parameters AC Generator DC Generator
Output Power It generates AC electric power It produces DC electric power
Rings They have slip-rings. They have split-ring commutators.
Current induction Its output current can be induced either in the rotor or in the stator Its output current is induced in the rotor only
Direction of Current Electrical current reverses direction periodically. Electrical current flows only in one direction.
Commutators AC generator does not have commutators. DC generators have commutators due to which the current flow only in one direction.
Distribution and Transmission The distribution of the output is easy. It is difficult to distribute the output.
Efficiency AC generators are very efficient as the energy losses are less. Due to sparking and other losses like copper, eddy current, mechanical, and hysteresis losses DC generators are less efficient.
Maintenance Requires very less It requires frequent maintenance
Direction of Current In an AC generator, the electrical current reverses direction periodically. The electrical current flows only in one direction.
Types Rotating armature, Rotating field Single-phase, Three-phase Permanent magnet, Separately-excited, Self-excited
Voltage Distribution Transformers are used to distribute AC voltage. Transformers are not used to distribute DC voltage.
Voltage Level They are useful to generate very high voltages They are used to generate lower voltages
Explanation:
i hope dis might b helpful
Answer:
AC generator- 1) it has split ring.
2) Produce Ac electric power.
3) Used to generate very high level voltage.
DC generator- 1) Produce DC electric power.
2) it was split ring commutator.
3) Used to generate lower voltage.