Diyvehiclerepair
- How many amps does an alternator field draw?
- How much current is produced by alternator?
- How many amps does an alternator push?
- How is the maximum current output of an alternator regulated?
- How much voltage is needed to excite an alternator?
- How is field current routed through an alternator?
- How many amps does a car alternator charge at?
- How many watts does a 200 amp alternator produce?
- Do alternators have brushes?
- Is it OK to use a higher amp alternator?
- How big of an alternator do I need for 1000 watts?
- How big of an alternator do I need for 3000 watts?
- How many watts does a 120 amp alternator produce?
- How do I check the max output of my alternator?
- Why an alternator does not need a current regulator?
How many amps does an alternator field draw?
It will vary depending on the size of the alternator but at idle just after start up with full field current that would be about right for a mid size 75–90 amp alternator.
How much current is produced by alternator?
The power that can be produced by an alternator is determined by the alternator rating. The output of the alternator ranges from 40 Amp up to 120 Amp. For high-amp alternator, it can generate up to 300 Amp. Commercialized alternator is usually 12 V.
How many amps does an alternator push?
The size of an alternator will most likely increase the set amperage, too. High output alternators (often found on larger vehicles) can use between 200 to 350 amps. Smaller cars by comparison, such as a Ford Mustang, will only use about 100 amps with batteries that run at about 12 volts.
How is the maximum current output of an alternator regulated?
While the engine is running, the alternator provides the power to run the engine and all accessories. If there is any power left over, then it charges the battery. Voltage/amperage testers have a load dial. Turning on accessories allows the regulator to provide maximum output.
How much voltage is needed to excite an alternator?
This voltage should be approximately 12.5 with nothing running. The battery light is critical for alternator operation. If this light does not work the alternator will not charge. This light is used as a resister to excite the alternator to charge.
How is field current routed through an alternator?
What is used in an alternator to rectify AC to DC? ... How is field current routed through an alternator? Through slip-rings and the rotor. How many diodes are used in a typical 3-phase alternator, for full-rectification?
How many amps does a car alternator charge at?
A: Charging time depends on the battery and the charger. For a battery being charged by the car's alternator it can take an hour of driving to get it fully charged. Car batteries range from 40AH to 110AH, and alternators range from 45 amps to 200 amps.
How many watts does a 200 amp alternator produce?
A large alternator can be 200 amps or more. 14.4 volts x 200 amps = 2880 watts.
Do alternators have brushes?
Unlike dynamo brushes , alternator brushes normally last for several years. ... Alternators carry only the field current of 2 or 3 amps. The brushes are in contact with slip rings , which have a smaller, smoother surface than a dynamo commutator. The slip rings are solid rather than segmented, as in a dynamo.
Is it OK to use a higher amp alternator?
You can never have too much amperage when it comes to alternators; therefore, you never have to worry about choosing an alternator with too high of a rated output. ... So high-output alternators will not harm your components or charging system, no matter how high you go with the amps.
How big of an alternator do I need for 1000 watts?
As a general rule, you need about 100 amps of current for every 1000 watts of power generated.
How big of an alternator do I need for 3000 watts?
3000 watt / 12V is equal to 250A. A 250A alternator is needed to keep up with it. Since your engine would have to work just as hard as any portable 3KW generator to keep up with the amplifier, you would need a large fuel tank.
How many watts does a 120 amp alternator produce?
thats an average between output surges. Thats just sort of a relative rule of thumb. The other sorta relative rule of thumb is that 10 amps can translate to somewhere in the neighborhood of 100 watts... so a 120 amp alternator could do 1200 watts.
How do I check the max output of my alternator?
Turn on all the electrical equipment in the car: lights, stereo, wipers and everything else you can. Let the engine idle at around 1200 rpm. Check your car's manual or parts manual to see what your alternator's maximum amperage should be. The amp reading on your meter should be near the maximum output.
Why an alternator does not need a current regulator?
The voltage regulator controls the field current applied to the spinning rotor inside the alternator. When there is no current applied to the field, there is no voltage produced from the alternator.
