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•The RMS line voltages of the two generators must be equal.
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•The two generators must have the same phase sequence.
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•The phase angles of the two a phases must be equal.
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•The frequency of the new generators, called the oncoming generator, must be slightly higher than the frequency of the running system.
What else can I help you with?
When the induction motor working as induction generator?
An induction motor connected to an existing ac supply normally runs at less than the synchronous speed by an amount described as the 'slip' which is proportional to the torque demanded at the shaft. If the same motor is instead coupled to an engine and driven at a speed higher than the synchronous speed, with negative slip, power then travels back into the ac supply and the motor has become a generator. The amount of power produced depends on the speed. However a normal induction motor will not behave as a stand-alone ac generator. For ac power generation synchronous generators are invariably used because it is necessary to set and maintain the frequency of the supply accurately.
Is induction generator self starting?
An induction generator is not self-starting; it requires an external power source or an initial starting mechanism to reach synchronous speed. Once it reaches this speed, it can generate electricity by feeding energy back into the grid or a connected load. Typically, induction generators are used in wind turbines and other applications where they can be driven by a prime mover to achieve the necessary conditions for generation.
What is a turbine exciter?
A turbine exciter is a device used in power generation systems to supply the necessary excitation current to the rotor of a synchronous generator, which is typically driven by a turbine. This excitation current creates a magnetic field necessary for the generator to produce electricity. Exciters can be static (using power electronics) or rotary (mechanically coupled to the generator), and they play a crucial role in maintaining voltage stability and controlling the output of the generator. Proper functioning of the exciter is essential for efficient and reliable operation of power plants.
What is exciter in electrical?
An exciter in electrical engineering refers to a device that provides the necessary excitation current to the field winding of a synchronous machine, such as a generator. This excitation current is essential for establishing the magnetic field required for the generator to produce electrical power. Exciters can be either rotating (mounted on the same shaft as the generator) or static (using solid-state technology), and they play a critical role in regulating the output voltage and stability of the generator.
What is meant by the term excertation current when refering to generator?
Excitation current in a generator refers to the current supplied to the rotor windings to create a magnetic field necessary for generating electricity. This current is crucial for controlling the voltage output and overall performance of the generator. By adjusting the excitation current, operators can regulate the generator's voltage and ensure stable operation under varying load conditions.
What are the conditions necessary for price leadership?
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What are the conditions necessary for effective price leadership?
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Difference between static excitation system?
It is called static excitation when you make use of solid state components like diode and thyristors to convert to pure dc and to use this dc for field excitation of synchronous generators. The field winding of synchronous generators can be excited by dc source only. It is called brushless excitation because use of carbon brushes are not made here.It is called dynamic excitation is when you make use of rotating brushes. Excitation is necessary to produce reactive power and also to regulate the voltage of synchronous generators.
Is there a place that has generator rentals?
The best place to find generator rentals is in your local phone book under the yellow page listings for generator rentals. If necessary you could also phone information in order to obtain a local listing under generator rentals.
What is self-independent excitation?
Self-independent excitation refers to a method of generating electrical power in synchronous machines where the excitation system operates independently of the machine's output. In this setup, an external source, often a separate generator or battery, provides the necessary excitation current to the rotor. This approach allows for greater control over the excitation process and can enhance machine stability and performance, particularly in varying load conditions. It is commonly used in power systems to ensure reliable operation and improve voltage regulation.
What condition are necessary to parallaling two synchrounce generator?
To parallel two synchronous generators, they must have the same voltage, frequency, and phase sequence. Additionally, their terminal voltages must be in phase alignment, their frequencies must be the same, and their voltages must be within an acceptable range of each other. Proper synchronization is crucial to avoid phase differences and ensure smooth parallel operation.
Conditions necessary for a congruent triangle?
Conditions necessary for a congruent triangle? arethey must know the funky chicken dance
