State the factors, for the choice of electrical system for an aero turbine.

1 Answer

Answer :

A:The choice of electrical system for an aero turbine is guided by three factors:
• Type of electrical output: dc, variable- frequency ac, and constant- frequency ac.
• Aero turbine rotational speed: constant speed with variable blade pitch, nearly constant speed with simpler pitch- changing mechanism or variable speed with fixed pitch blades.
• Utilization of electrical energy output: in conjunction with battery or other form of storage, or interconnection with power grid.

Related questions

Description : State the factors, for the choice of electrical system for an aero turbine.

Last Answer : The choice of electrical system for an aero turbine is guided by three factors: Type of electrical output: dc, variablefrequency ac, and constant- frequency ac. Aero turbine rotational speed ... output: in conjunction with battery or other form of storage, or interconnection with power grid.

Description : Explain in brief aero derivative & heavy frame engine. State their applications separately.  

Last Answer : Heavy frame industrial gas turbines compared to aero derivative gas turbines are usually slower in speed, narrower in operating speed range, heavier, larger, have higher air flow, slower in start-up ... units. They are exposed to a greater quantity of the contaminants in air that cause corrosion.

Description : Aero is used as a background screen of a GUI on a computer screen. -Technology

Last Answer : FalseAero is a visual desktop experience that provides easy way to access the desktop.

Description : Aero Garden?

Last Answer : form_title= Aero Garden form_header= Spend as much time outside with an Aero garden. What size aero garden do you want?*= _ [50] What are you planting in the garden?*= _ [50] How soon do you want to plant?*= _ [50]

Description : Aero Bed?

Last Answer : form_title= Aero Bed form_header= Sleep comfortably with an Aero bed. Have you ever slept on an Aero bed?*= () Yes () No What size bed do you want?*= {Twin, Full, Queen, King} What is your budget?*= _ [50]

Description : Which is the most suitable layer for flying of Jet aero planes ?

Last Answer : Stratosphere

Description : Which of the following is Russian airline? A. Aero USSR B. Aero Flot C. Russian Float D. Aero Russia

Last Answer : ANSWER: A

Description : Aero Asia is the airline of ________. A. UAE B. Pakistan C. India D. Bangladesh

Last Answer : ANSWER: B

Description : Japan _________ airline belongs to Japan. A. Aero Japan B. Air Japan C. Japan Air D. JAL

Last Answer : ANSWER: D

Description : Holland Which of the following is the airline of Holland? A. KLM B. Air Holland 46 C. Aero Holland D. Holland Airline

Last Answer : ANSWER: A

Description : Which of the following was the first private Airline licenced? A. Aero Asia B. Bhuja Airline C. Hajvery Airline D. Air Blue

Last Answer : ANSWER: C

Description : Which of the following is the airline of Holland? A. KLM B. Air Holland C. Aero Holland D. Holland Airline

Last Answer : ANSWER: A

Description : Aero Asia is the airline of ________. A. UAE B. Pakistan C. India D. Bangladesh

Last Answer : ANSWER: B

Description : _________ airline belongs to Japan. A. Aero Japan B. Air Japan C. Japan Air D. JAL

Last Answer : ANSWER: D

Description : Which of the following is Russian airline? A. Aero USSR 6 B. Aero Flot C. Russian Float D. Aero Russia

Last Answer : ANSWER: A

Description : Which of the following was the first private Airline licenced? A. Aero Asia B. Bhuja Airline C. Hajvery Airline D. Air Blue

Last Answer : ANSWER: C

Description : Metal used for the manufacture of aero- plane?

Last Answer : Titanium

Description : The alloy used for making the parts of aero planes?

Last Answer : Duralumin

Description : Sum of all ecosystems is classified as------? A. Aero sphere B. Ionosphere C. Biosphere (Answer) D. Ozonosphere

Last Answer : C. Biosphere (Answer)

Description : In which year, the two aero plane were crashed in twin building of world trade centre

Last Answer : 2001

Description : State turbine governor setting. 

Last Answer : On 2560 rpm turbine governor becomes effective and on 2760 rpm is turbine governor take over speed. 

Description : Turbine-Generator Lubrication Oil System Function

Last Answer : Turbine-Generator Lubrication Oil System Function For large turbine-generators forced lubrication system and water cooling system should be continuously required during the operation of the turbine-generator and ... when the oil pressure is low. A second backup dc pumps are sometimes provided.

Description : What type of governing system used in turbine and what are the purposes of the system? 

Last Answer : Hydraulic governing system of centrifugal (speed) governer type is adopted in turbine. Sensitive oil pressure to actuate centrifugal governer is 6.1 kg/cm2 (max). At 6.7 kg/cm2 relief valve ... speeder gear from BPC signal. Once synchronised the grid frequency and speeder gear controls the speed. 

Description : What is the purpose of turbine governing system?

Last Answer : Turbine governing system governs the speed of the turbine with the help of centrifugal governer. It reduces the steam inlet when turbine over speeds.  

Description : What are the different factors for the selection of electrical drives?

Last Answer : Steady state operation requirements Transient operation requirements Requirements related to the source Capital and running cost, maintenance needs, life Space and weight restrictions Environment and location Reliability

Description : Which power plant has minimum operating cost? a) Hydroelectric power plant b) Thermal power plant c) Nuclear power plant d) Gas Turbine Power Plant Ans: A 42. Which of the following have ... a) Hydroelectric power plant b) Thermal power plant c) Nuclear power plant d) Solar electric power plant

Last Answer : Ans: B

Description : The propeller shaft speed in a turbo-electric, synchronous, propulsion drive motor is changed by varying the __________. A. turbine speed B. number of motor poles C. field strength of the generator D. field strength of the motor

Last Answer : Answer: A

Description : What are the working fluids in gas turbine?

Last Answer : 1.Air 2.Helium 3.Argon 4.Carbon dioxide

Description : Explain reaction turbine in terms of head:

Last Answer : High head- Francis Medium head- Propeller Low head- Kaplan

Description : What is the purpose of TOPP (turbine oil purification plant)? 

Last Answer : The purpose of TOPP is to remove the water ingress in turbine oil system from the gland leaks, cooler leakage, and solid metal particles, which are produced due to rust, wear of bearings and to normalize the ... capacity of TOPP is, for solids - 5 microns and for water - 300 to 500 parts per milli.

Description : What is the type turbine installed in KGS? 

Last Answer : Tandem compounded to expansion of steam, impulse reaction type.  

Description : Write critical speeds of turbine generator?  

Last Answer : Generator rotor 1st critical speed 1283 rpm 2nd critical speed 3600 rpm Combined turbine generator 1st critical speed 1938 rpm 2nd critical speed 2120 rpm 3rd critical speed 2385 rpm 4th critical speed 2837 rpm 

Description : What are the futures of turbine generator? 

Last Answer : a. Low heat drop b. Moisture control (HP-0.26%, LP-3%.) c. Turbine governing system d. 70% steam dumping to the condenser to avoid reactor trip. e. Gland sealing f. LP exhaust hood cooling g. Generator stator and rotor cooling h. Hydrogen sealing i. Static excitation 

Description : How shaft voltage produced by turbine? 

Last Answer : Due to un-symmetry in the flux path of core, non-uniform air gap, un-symmetry in the rotor magnetic field during short circuit in the rotor winding, causes voltage to develop across the ends of rotor shaft. 

Description : How dearator pressure is maintained after turbine trip? 

Last Answer : Pegging steam is used to maintain dearator pressure after turbine trip.  

Description : How turbine oil purification is achieved?

Last Answer : Oil purification is achieved by centrifugal operation.  

Description : Explain the main difference between impulse and reaction turbine. 

Last Answer : When the inlet pressure of steam to the turbine is equal to outlet pressure of steam from the turbine the turbine is called the impulse turbine. In this type the heat is added is very less. ... than the inlet pressure of the steam. There is reduction in pressure with the increase in kinetic energy.

Description : What are the methods of removing moisture from turbine?

Last Answer : a. External method by moisture separator and reheater, which separates the moisture and reheates the steam. b. Internally by stainless steel mesh, which reduces moisture (water particles) to 1%. c. By main steam reheat. 

Description : Explain the principle of working of impulse steam turbine. 

Last Answer : When steam enters the turbine it suffers a change in direction and momentum, which gives rise to the rotation of the turbine. There will be no drop in pressure in impulse steam turbine.  

Description : Flue gases coming out from furnace is first going through a) Turbine b) Economizer c) Air pre-heater d) Chimney

Last Answer : Ans: Economizer

Description : Water hamming effect is occurs in a) Surge tank b) Penstock c) Turbine d) Reservoir

Last Answer : Ans: Penstock

Description : Low head plants generally use (A) Pelton Turbines (B) Francis Turbine (C) Pelton or Francis Turbine (D) Kaplan Turbines

Last Answer : Ans: A In the hysterisis motor, the direction of rotation can be reversed by shifting the shaded pole region with respect to main pole. But not by changing supply lead because it has ac supply.

Description : State any factors to be considered while selecting electrical welding system.

Last Answer : .embed-container { position: relative; padding-bottom: 56.25%; height: 0; overflow: hidden; max-width: 100%; } .embed-container iframe, .embed-container object, .embed-container embed { position: absolute; top: 0; left: 0; width: 100%; height: 100%; }

Description : How Many factors tend to influence party choice.Name Four?

Last Answer : Need answer

Description : What factors might influence a cartographers choice of contour interval?

Last Answer : Feel Free to Answer

Description : Why is microbial control necessary and what are some of the factors that go into the choice of a particular antimicrobial agent?

Last Answer : The control of microorganisms is an important way of preventing pathogens from reaching the body.Sterilizing laboratory equipment, hospital supplies, and industrial apparatus helps contain contamination.The choice of a ... , the acidity or alkalinity of the area, and the presence of organic matter. 

Description : Write down the factors determining the choice of material to avoid corrosion. 

Last Answer : Factors determining the choice of material to avoid corrosion: 1. Resistance to corrosion in given environment 2. Operating condition such as temperature, pressure and flow rate. 3. Mechanical ... cost, replacement cost 7. Expected life 8. Material selection based on sound economic analysis.

Description : The choice of communication partners is influenced by factors of (A) Proximity, utility, loneliness (B) Utility, secrecy, dissonance (C) Secrecy, dissonance, deception (D) Dissimilarity, dissonance, deviance

Last Answer : (A) Proximity, utility, loneliness