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What else can I help you with?
What supplies alternating current?
An alternator (a.c. generator).
What practical steps are taken to ensure that voltage at generator terminals under varying voltage conditions remains constant?
The AVR (automatic voltage regulator) can generally be set to maintain a constant output voltage or a constant power output. This device controls the field current; as field current increases, the back emf on the generator will cause it to slow down. At this point the generator's governor will open up some valves, increasing power to the prime mover (whatever is making the generator spin), which will keep the generator spinning at its' ideal speed. The exact opposite occurs when the field current is decreased. The AVR monitors terminal or system voltage, and makes decisions based on its' settings to ramp up, ramp down, or keep the field current constant.
Constant voltage power supplies will maintain a constant voltage under varying?
current.
Example of a DC current device?
a typical example of a d.c current device is a generator it supplies current directly to houses
How does a voltage regulator regulate the voltage output of an ac generator?
Generator output is controlled by voltage feedback to the voltage regulator which senses voltage drop or rise and regulates the current being sent to the armature. This rise and fall of the armature current governs the generators output voltage.
What is mean by regulator in electronics circuits?
A regulator holds something (e.g. voltage, current) in a circuit constant (aka regulates it), that otherwise would not stay constant as the circuit operates. Keeping this constant is critical to proper operation of the circuit, thus the need for its regulation.
What will happen to the generator voltage when the load fluctuates in distribution board?
The generator's voltage regulator will sense the fluctuation. If the voltage goes low more current will be applied to the armature to compensate. If the voltage goes high less current will be applied to the armature to compensate.
What is a shunt generator?
A shunt generator is a method of generating electricity in which field winding and armature winding are connected in parallel, and in which the armature supplies both the load current and the field current.A direct current (DC) generator, not using a permanent magnet, requires a DC field current. The field may be separately excited by a source of DC, or may be connected to the armature of the generator so that the generator also provides the energy required for the field current.
Once the generator and the regulator control panel have been checked you can connect the runway cables into the on the regulator?
After confirming the generator and regulator control panel are working correctly, you can safely connect the runway cables to the regulator to provide power. Ensure the connections are secure and follow any manufacturer guidelines for the connection process. Double-check the setup before turning on the power to avoid any issues.
How does a windmill charge a battery?
In order to produce electricity from any motion source (such as a windmill) you must have an electric generator to produce the power that charges the battery. The windmill supplies the motion needed to turn the generator. The generator will produce power when the windmill is powered by enough wind to turn the generator. The generator is connected to the battery and the power is stored by the battery. Usually, but not always, there is a regulator attached between the generator to shut the flow of electricity off when the battery has been sufficiently charged. This feature is used to prevent battery failure due to overcharging or at the very least extend battery life by optimizing the charge times. The regulator may also detect battery drain and will turn on the current from the generator when the battery needs charging. (assuming the windmill is powered by wind and turning) Batteries store and emit DC (direct current) and therefore usually get power directly from a generator. In some applications the windmill may generate AC (alternating current) by using an "alternator" (instead of a generator) to create power. When that type of approach is used an additional electronic device called a "rectifier" is needed to convert the AC current to DC current in order to charge batteries -- which can only be charged by Direct Current.
What is the excitation system in a generator used for?
The excitation system is used to control the excitation of the rotating field in the armature. By increasing the armature current, it in turn increases the magnetic flux in the armature coil. This has the effect of increasing the voltage output of the generator. By lowering the armature current this in turn lowers the generator output voltage. The generator's voltage regulator automatically adjusts the output voltage continuously as the applied load on the generator changes.
How current increases when the load increases in a generator?
Power is voltage times current. If you want to maintain constant voltage and yet increase power, then current must increase. Its simple math.
