what is the working principle of alternator?
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Working Principle of Alternator. All the alternators work on the principle of electromagnetic induction. According to this law, for producing the electricity we need a conductor, magnetic field and mechanical energy. Every machine that rotates and reproduces Alternating Current.
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The working principle of a diesel generator is based on the law of Energy conversion i.e. “Energy can neither be created nor be destroyed but be only converted from one form to another form.” Diesel has a chemical energy, during combustion the chemical energy is converted into heat and force.
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Working Principle of Megger. It works on the principle of electromagnetic attraction. When a current-carrying primary coil is placed under the influence of a magnetic field it experiences a force. This force produces a torque that is used to deflect the pointer of the device which gives some reading.
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One of the easiest ways to test the integrity of your alternator is by using a very simple device called a voltmeter. Here's how to perform the test. The very first thing you need is to measure the voltage output of your car's battery.
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Working principle of Repulsion Motor: The basic principle behind the working of repulsion motor is that “similar poles repel each other.” This means two North poles will repel each other. Similarly, two South poles will repel each other.
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In a so-called 'DC generator', this AC current is generated in the rotating armature, and then converted to DC by the commutator and brushes. In an 'alternator', the AC current is generated in the stationary stator, and then is converted to DC by the rectifiers (diodes).
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Generally, if you can keep your engine RPM up, your alternator will charge your battery at a faster rate. If you are driving on a motorway, you should be able to charge your car battery in 30 minutes.
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An alternator is a device that converts mechanical energy into AC electrical energy. A generator is a mechanical device which converts mechanical energy to either AC or DC electrical energy. ... Alternators have higher output than generators. Generators have a lower output when compared with an alternator.
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Alternator at Fault: An illuminated dashboard light can indicate a problem with an automobile charging system. However, a very simple way to check if the alternator is working is to run the car and disconnect the positive terminal of the battery. If the vehicle stops running, then you probably have a bad alternator.
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So when the engine is not running the voltage ranges between 12.9V and 10V as the battery discharges. When the engine is running the voltage is typically between 13.6 and 14.4 volts, depending on the alternator's load curve and the state of charge of the battery. Some cars can get up to 15V under normal operation.
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Steps to Check Your Battery for Overcharging Once the vehicle is started without the introduction to a load (lights, radio, A/C and fan), the volts will rise to an average of 14 volts. If the multimeter reads higher than 14.8 volts, then the alternator should be checked for overcharging.
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For others, it's normal to see as high as 16 volts for long stretches. Still, it's perfectly normal for others to see the alternator not charge at all intermittently. ... For some alternators, it's normal to see as low as 13 volts. For some, a constant 13.6 volts is an indication of a problem.
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There are certain signs of a bad alternator to look for: While running the car, note the brightness of the interior lights. If the dashboard gradually dims, the alternator is likely at fault. ... Some may recommend running the engine with the negative battery cable disconnected to test the alternator.
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The output of an alternator is direct current (DC). When the alternator pulley is rotated, alternating current (AC) passes through a magnetic field and an electrical current is generated.
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Alternator at Fault: However, a very simple way to check if the alternator is working is to run the car and disconnect the positive terminal of the battery. If the vehicle stops running, then you probably have a bad alternator. You can also examine your interior and dashboard lights.
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Motors works on the principle that a current carrying conductor experiences a force when placed in a magnetic field. Generators work on the principle of electromagnetic induction. The shaft of an electric motor is driven by a magnetic force which is developed between the armature and field.
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If your car battery is above 12 volts, go for a drive In general, if the battery is showing between 12 and 12.4 volts, it's safe to recharge it using your vehicle's alternator.