0
AC generator, the brushes run on slip rings which maintain a constant connection between the rotating coil and the external circuit. This means that as the induced emf changes polarity with every half-turn of the coil, the voltage in the external circuit varies like a sine wave and the current alternates direction. DC generator, the brushes run on a split-ring commutator which reverses the connection between the coil and the external circuit for every half-turn of the coil. This means that as the induced emf changes polarity with every half-turn of the coil, the voltage in the external circuit fluctuates between zero and a maximum while the current flows in one constant direction
Wiki User
∙ 12y ago
Wiki User
∙ 12y agoFor a 50 Hz supply, a.c. generators produce a voltage that changes its polarity 100 times per second, whilst d.c. generators produce a voltage of constant polarity.
Wiki User
∙ 10y agoThere are several differences in AC and DC generators. In an AC generator, the current can flow in both directions. In a DC generator, the current can only flow in one direction.
Add your answer:
Earn +20 pts
What component causes a generator to produce dc voltage rather than ac voltage at its output terminals?
"...The main difference between a DC generator and an AC generator lies in the manner in which the rotating coil is connected to the external circuit containing the load..." Excerpt from: http://farside.ph.utexas.edu/teaching/316/lectures/node91.html In other words, the commutator that the brushes contact makes the difference between AC/ (semi) DC output. You can also use electronic switching these days to get DC from AC generators.
What makes a dc bulb different from an ac bulb?
The voltage source that is applied to them is the difference between AC and DC light bulbs.
How do you tell the difference between AC and DC 3 phase generators and alternators?
The very first thing to do is look at the nameplate. There it will tell you what the voltage is. On a three phase generator there is usually no places to plug any equipment into. Three phase generators usually have the coil ends brought to terminal points in the generators junction box. From a second set of terminals the feeder wires go to the top end of the generators main disconnect breaker. Different voltages can be obtained by positioning jumpers between different terminals within the junction box.
Can you perform a voltage drop test on AC as in DC?
A: There is no difference except for the type of source
What component of a motor changes the induced AC voltage into a pulsating DC?
The commutator is the moving part of the electrical switch in motors that reverses the current direction between the rotor and the external circuit. This is applicable in electrical motors and electrical generators.
What is the difference between AC and DC choke?
There is no difference between AC AND DC chockes
Difference between AC and DC generator?
The major difference between an AC generator and a DC generatoris that the DC generator requires a mechanism to provide a DC output. This can be done mechanically with a commutator or electronically with a rectifier. Internally, all generators produce an alternating voltage. Allgeneratorsrequire a magnetic field.
What is the difference between ac and dc grounding?
The difference AC and DC grounding is that AC is alternate current and DC is direct current. Grounding for both AC and DC is the same.
Is it diesel generators is DC or AC generators?
Most diesel generators are designed to produce alternating current (AC) electricity. However, there are some diesel generators that can also produce direct current (DC) electricity with the help of rectifiers or inverters.
Are DC generators more expensive then AC generators?
DC generators require more time and material to make. Because of this, it will be cheaper to purchase an AC generator. DC generators are typically a better product as well, and you get what you pay for.
What is the difference between in ac and dc powwer cable?
There is no difference in the cables. The only difference is the type of electrical power being transmitted. AC or DC applications use the same wires.
What the difference between AC and DC?
AC rises with respect to time but DC is steady.
How the output characteristics of AC and DC generators vary from each other?
AC generators have a varying waveform which is sinusoidal in nature, whereas a DC output is linear.
Common parts of ac and dc generators?
There is not the big different between AC and DC generator and the common part of both of them areRotorStaterFrameMagnetic FieldBarringShaftWinding (Lap or Wave)Cable boxThe big different between both of them is the commutator and split rings which we use to convert DC to AC.
What component causes a generator to produce dc voltage rather than ac voltage at its output terminals?
"...The main difference between a DC generator and an AC generator lies in the manner in which the rotating coil is connected to the external circuit containing the load..." Excerpt from: http://farside.ph.utexas.edu/teaching/316/lectures/node91.html In other words, the commutator that the brushes contact makes the difference between AC/ (semi) DC output. You can also use electronic switching these days to get DC from AC generators.
Difference between magneto and ac generator?
magneto is dc
What is the difference between ac ammeter and dc ammeter?
dc ammeter has three connecting pins while ac has four
