0
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.
Wiki User
∙ 11y ago
Add your answer:
Earn +20 pts
What instrument is used to measure the speed of an airplane?
The speed of an airplane is measured by a system known as the pitot-static system which compares the difference between the static air pressure that exists around the aircraft and the dynamic, or ram air pressure which is a function of the speed the aircraft is moving through the air. The devices used to gather this information are the static air port (which measures static air pressure) and the pitot tube (which measures ram air pressure). This differential is displayed on an instrument in the cockpit called an airspeed indicator (or ASI).
Name the instrument used for measuring the speed of an aeroplane?
The speed of an airplane is measured by a system known as the pitot-static system which compares the difference between the static air pressure that exists around the aircraft and the dynamic, or ram air pressure which is a function of the speed the aircraft is moving through the air. The devices used to gather this information are the static air port (which measures static air pressure) and the pitot tube (which measures ram air pressure). This differential is displayed on an instrument in the cockpit called an airspeed indicator (or ASI).
What is difference between system overshoot and system lag is called?
temperature swing
What is the difference between rigid and independent suspension system?
h
In physical science not biology what is the difference between a closed system and an open system?
A closed system does not allow for energy or matter to enter or leave the system.
What are the seminar topics related to power system engineering?
static type thyristor controlled excitation system
What is the difference between continuous and discrete system?
The difference between continuous and discrete system lies in the variables. Whereas the continuous systems have dynamic variables, the discrete system have static variables.
What is the difference between generator over excitation versus under excitation when attached to the grid?
Over Excitation is a condition when the Excitation System is providing too much field current and as a result, the rotor of the generator will over heat. The Excitation System is equipped with an Over Excitation Limiter. This limiter acts to reduce the Excitation Current if this condition exists Underexcitation is a condition when the generator is not getting enough Excitation Current. If the generator does not get enough Excitation Current, it can be un-synchronized with the grid. We call this slipping a pole. If this occurs, the generator can be severely damaged. Kelly Thompson Engineering Lead Siemens Energy Alpharetta GA
Differentiate between static and dynamic systems in linear system analysis?
If a system is static then it will be known as STATIC SYSTEM and if it is not static then its a common sense that it will be a DYNAMIC SYSTEM.
Is a watch a static system?
If a system is static then it will be known as STATIC SYSTEM
What is the difference between cropping system and farming system?
difference between farming system and cropping system
Difference between system software and operating system?
difference between operating system and system software?
What is a excitation variable?
A variable that causes change in the output of a system. In a RC circuit, for example, the input V is the excitation variable
What will happen if polarity of dcin rotor in static excitation system are made opposite?
I am tyring to figure this out too. I think you will get no output from the generator but am not 100% sure. My F1 and F2 labels are missing am kind of scared to just guess.
What is the difference between end-user systems and organizational systems?
the difference between end user system and organisational system
Difference between a human being and an elephants digestive system?
Difference between a human being and an elephants digestive system?
What happens if excitation fails in parallel oprating generator?
when excitation fails,Reactive power will be supplied by the system to which the generator is connected and generator will work as induction generator and its speed will rise a little. generator which was in over excitation mode will work in underexcitation.but there is under excitation limit which should not be reached so we should detect loss of excitation and trip generator
