State the different methods of Power Generation adopted in India.
Last Answer : 1. Hydro energy or hydro Electric power plant 2. Nuclear energy or nuclear Power Plant 3. Fossil fuels: i) Thermal energy (by combustion of coal) or Thermal Power Plant ii) Natural gas ... from any organic waste materials. It contains mixture of methane(50-65 % in volume) and carbon dioxide
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72 views
1 answer
asked
Aug 2, 2019
by
anonymous
Explain captive power generation in brief
Last Answer : Advantages of captive power generation: 1. Reliability of supply increases. 2. Power quality is good. (Free from harmonics) 3. Transmission losses reduce as generation is nearby load centre ... . Same steam can be used for generation of electricity. Thus increase efficiency of industry.
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86 views
2 answers
asked
Sep 8, 2018
by
anonymous
Explain with block diagram photovoltaic power generation.
Last Answer : Photovoltaic power generation: Photovoltaic power generating system consists of following components: 1. Photovoltaic cell panel: Its function is to convert energy content of sunrays directly into DC ... . Step-up transformer: It step-up input voltage to utilization voltage e.g. 230V.
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4.0k views
1 answer
asked
Sep 8, 2018
by
anonymous
List any two types of fuels used in electrical power generation plants.
Last Answer : Types of fuels used in electrical power generation plants: 1) Solid fuels: Coal, Biomass: Wood, Nuclear fuel: Uranium, Plutonium 2) Liquid fuels: Diesel, Petrol 3) Gaseous Fuels: Natural gas, Producer ... 2) Wood 3) Uranium 4) Plutonium 5) Diesel 6) Petrol 7) Natural gas 8) Producer gas
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81 views
1 answer
asked
Sep 7, 2018
by
anonymous
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Power generation cost reduces as (A) Diversity factor increases and load factor decreases. (B) Diversity factor decreases and load factor increases. (C) Both diversity factor and load factor increase. (D) Both diversity factor and load factor decrease
Last Answer : Power generation cost reduces as Both diversity factor and load factor increase.
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88 views
1 answer
asked
May 8, 2018
by
anonymous
What are the types of power generation?
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62 views
0 answers
asked
Mar 10, 2018
by
anonymous
What is the power generation?
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72 views
0 answers
asked
Mar 10, 2018
by
anonymous
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State the effects of low power factor on efficiency and voltage regulation of short transmission lines.
Last Answer : i) Effect of Low power factor on efficiency:- When power factor of load reduces current drawn by transmission line increases so copper losses in transmission line increases, hence transmission ... increases, so voltage drop in transmission line increases so regulation increases. (Become Poor)
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357 views
1 answer
asked
May 22, 2020
by
anonymous
State features of wireless power transmission.
Last Answer : Features of wireless power transmission: 1. Energy delivered anywhere in the world 2. Zero fuel cost 3. Less losses 4. Less use of copper wires 5. More efficiency 6. Minimum long- ... on cables would never exist in the transmission. 7. Power theft would be not possible at all.
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36 views
1 answer
asked
May 22, 2020
by
anonymous
Why is AC better for long distance power transmission than DC ?
Last Answer : ac is more economical to transmit for long distances . wires can be made smaller by step up transformer .. since major cost are wires to transmit .. then at the end of distance step down transformer is used for commercial use.
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210 views
4 answers
asked
Aug 25, 2019
by
anonymous
In voltage source converter based HVDC transmission system the active power is controlled by changing (A) phase angle of the converter ac input voltage (B) supply frequency of the converter ac input voltage (C) magnitude of the converter ac input voltage (D) DC voltage at the inverter terminals
Last Answer : In voltage source converter based HVDC transmission system the active power is controlled by changing phase angle of the converter ac input voltage
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136 views
1 answer
asked
Apr 28, 2018
by
anonymous
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The power flow problem mathematical model for a linear transmission network (A) is non-linear (B) is linear (C) considers time variation of generation (D) does not consider tap-changing transformers
Last Answer : The power flow problem mathematical model for a linear transmission network is non-linear
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82 views
1 answer
asked
Apr 28, 2018
by
anonymous
Why high voltage is used in power transmission?
Last Answer : The primary reason that power is transmitted at high voltages is to increase efficiency. ... The lower current that accompanies high voltage transmissionreduces resistance in the conductors aselectricity flows ... This means that thin, light-weight wires can beused in long-distance transmission.
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5.3k views
2 answers
asked
Mar 10, 2018
by
anonymous
Electric Power
Last Answer : Electric Power
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94 views
1 answer
asked
Apr 8, 2020
by
anonymous
State elements of diesel electric power plant with their functions.
Last Answer : Elements of Diesel Power Plant with their function): 1) Diesel Engine: - This is the main component of the P.P. which develops mechanical power. 2) Engine air intake system: - Air ... fuel as per requirement. 10) Alternator: - Its function is to convert mechanical power into electrical power.
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99 views
1 answer
asked
Aug 2, 2019
by
anonymous
Options: A) WATT B) AMPERE C) VOLTS D) OHM
Last Answer : Correct Answer: A) WATT
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75 views
1 answer
asked
Jun 28, 2019
by
anonymous
Electric power formula
Last Answer : Electric power formula
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65 views
1 answer
asked
Jun 11, 2019
by
anonymous
"Hydro electric power station are not perennial power station". Justify.
Last Answer : Justification: The water utilized by the hydro power plants comes mostly from storage dams/reservoirs which get filled up during the monsoon rainy season. Such reservoirs are utilized for supplying ... are important. Hence "Hydro electric power stations are not perennial power station"
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89 views
1 answer
asked
Sep 8, 2018
by
anonymous
Explain starting system in diesel electric power plant.
Last Answer : Starting system in Diesel Electric Power Plant: It includes Storage battery, compressed air tanks, self-starter etc. The purpose of engine starting system is to rotate the engine initially while ... as Ammeters, Voltmeters, Wattmeters, Thermometers, Pressure gauges, Visible and audible alarm etc.
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125 views
1 answer
asked
Sep 8, 2018
by
anonymous
Explain fuel system and air intake system in diesel electric power plant.
Last Answer : Fuel system and air intake system in diesel electric power plant : Fuel system: It consists of storage tank, strainers, fuel transfer pump and all day fuel tank. The fuel oil is supplied ... Filters are provided to remove dust particles from air which may act as abrasive in the engine cylinder.
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123 views
1 answer
asked
Sep 8, 2018
by
anonymous
State any four advantages and four disadvantages of diesel electric power plant.
Last Answer : Advantages of Diesel electric power plant:- 1) The design and layout of Diesel electric power plant is simple. 2) It requires less space. 3) Time required for complete erection of diesel power plant is less ... . 9) The useful life is very short. 10) Availability of fuel in future may be limited.
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122 views
1 answer
asked
Sep 7, 2018
by
anonymous
List out the four applications of diesel electric power plant.
Last Answer : Applications of Diesel Power Plant: 1. It can be used as a standby (emergency) power plant to maintain continuity of supply. (Incase failure of main supply like hospital, Telephone exchange Radio stations, ... 10. Diesel plants are widely used for generating power ranging from 100 to 5,000 H.P.
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167 views
1 answer
asked
Sep 7, 2018
by
anonymous
An _____________is a network of electrical components used to supply, transfer and use electric power: (A) Electric power system (B) Electric power (C) All of the above (D) None of the above
Last Answer : An Electric power system is a network of electrical components used to supply, transfer and use electric power.
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92 views
1 answer
asked
May 8, 2018
by
anonymous
The storage battery generally used in electric power stations is (1) zinc carbon battery (2) lead acid battery (3) nickel cadmium battery (4) lithium -ion battery
Last Answer : The storage battery generally used in electric power stations is lead acid battery
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104 views
1 answer
asked
Apr 29, 2018
by
anonymous
Power factor of electric bulb is?
Last Answer : Power factor of electric bulb is unity.
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92 views
1 answer
asked
Mar 25, 2018
by
anonymous
Last Answer : Power for lighting in passanger coach, in a long distance electric train, is provided through individual generator of bogie and batteries.
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102 views
1 answer
asked
Mar 22, 2018
by
anonymous
Last Answer : In a steam locomotive electric power is provided through small turbo-generator.
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77 views
1 answer
asked
Mar 22, 2018
by
anonymous
Last Answer : The power mentioned on the name plate of an electric motor indicates the output power available at the shaft.
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95 views
1 answer
asked
Mar 20, 2018
by
anonymous
Last Answer : By use of thermocouple.
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213 views
2 answers
asked
Mar 20, 2018
by
anonymous
The efficiencies of transformers compared with that of electric motors of the same power are?
Last Answer : Transformers have high efficiency than the same ratted motors
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179 views
2 answers
asked
Mar 19, 2018
by
anonymous
what are the three different types of Electric power?
Last Answer : Real,reactive,apparent power
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126 views
2 answers
asked
Dec 4, 2017
by
anonymous
Last Answer : Series capacitors on transmission lines are of little use when the load VAR requirement is small.
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187 views
1 answer
asked
Mar 20, 2018
by
anonymous
Are You Part Of Generation No One Like Me?
Last Answer : How can you be between generations? Where does one generation end and does the next one begin? There are people of all ages alive all the time.
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1 view
1 answer
asked
Feb 27
by
anonymous
Basic idea of generation
Last Answer : Prior to the discovery of Faraday's Laws of electromagnetic discussion, electrical power was available from batteries with limited voltage and current levels. Although complicated in construction, D ... Therefore, area specific generating stations along with its distribution networks had to be used.
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2.4k views
1 answer
asked
Aug 8, 2019
by
anonymous
In order to have a lower cost of electrical energy generation the load factor (1) and the diversity factor should be low (2) should be low but the diversity factor should be high (3) should be high but the diversity factor should be low (4) and the diversity factor both should be high
Last Answer : In order to have a lower cost of electrical energy generation the load factor and the diversity factor both should be high
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134 views
1 answer
asked
Apr 29, 2018
by
anonymous
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Limitations of differential protection scheme of the altanetor
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11 views
0 answers
Which of the following materials is not used for transmission and distribution of electrical power ? (a) Copper (b) Aluminium (c) Steel (d) Tungsten
Last Answer : (d) Tungsten
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11 views
1 answer
A 3-phase 4 wire system is commonly used on (a) primary transmission (b) secondary transmission (c) primary distribution (d) secondary distribution
Last Answer : (d) secondary distribution
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31 views
1 answer
TRANSMISSION AND DISTRIBUTION MCQ
Last Answer : 51. It is difficult to maintain oil filled cables. (a) Yes (b) No Ans: a 51. In capacitance grading a homogeneous dielectric is used. (a) Yes (b) No Ans: b 52. In congested areas where excavation is ... The metallic sheath may be made of lead or lead alloy or of aluminium. (a) Yes (b) No Ans: b
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68 views
5 answers
Explain following techniques related to energy conservation in transmission and distribution system. (i) By balancing phase currents (ii) Variable technical losses (I2R losses).
Last Answer : (i) Balancing Phase currents: Proper (healthy balanced) three phase loads always draw equal currents in all lines but single phase loads in the 3 phase 4 wire system or loads connected between two ... . 11) Minimize I2R losses. 12) Balance the load currents. 13) Regulate the system voltages.
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195 views
1 answer
asked
Sep 22, 2018
by
anonymous
The permissible voltage variation in transmission and distribution system is: (A) ± 0.1% (B) ± 1% (C) ±10% (D) ± 25%
Last Answer : The permissible voltage variation in transmission and distribution system is: ±10%
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483 views
1 answer
asked
May 8, 2018
by
anonymous
Precise control of reactive current flow entering the transmission and distribution systems can be minimized by using (A) synchronous condenser (B) static VAR capacitor (C) capacitor bank (D) thyristor switched reactor in parallel with capacitor
Last Answer : Precise control of reactive current flow entering the transmission and distribution systems can be minimized by using (A) synchronous condenser (B) static VAR capacitor (C) capacitor bank (D) thyristor switched reactor in parallel with capacitor
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138 views
1 answer
asked
Apr 28, 2018
by
anonymous
State the advantages of use of high voltage in transmission of Electric power.
Last Answer : Advantages: 1. As Transmission voltage increases, current decreases. 2. As current decreases, cross section of conductor decreases. 3. As cross section of conductor decreases, its ... high voltage transmission line, successful interconnection of transmission line is possible than low voltage.
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94 views
1 answer
asked
May 22, 2020
by
anonymous
About trnsformer
Last Answer : Acc to Ohms law V=IR but it is only applicable when our resistance R is constant, as in case of transformer we take impedence which is equivalent to resistance is not constant it varies with system parameters that why Ohms law not applicable in case of transformer
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120 views
1 answer
Select insulating materials for following parts : (i) Insulation between heating element and base plate of electric iron. (ii) Insulation used over copper or aluminium conductor used for making coils. (iii) Transformer bushings. (iv) Insulation between transmission line and pole.
Last Answer : Parts Insulating Materials Insulation between heating element and base plate of electric iron. Mica Insulation used over copper or aluminium conductor used for making coils. ... Transformer bushings Porcelain Insulation between transmission line and pole. Porcelain
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199 views
1 answer
asked
May 7, 2020
by
anonymous
What are the building restrictions concerning power/transmission lines?
Last Answer : There is none in North Carolina—- They just put in a transmission line right down the road with houses at 75 foot set-back from road on both sides of the road. The towers are taller than the driveways are long!
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3 views
1 answer
asked
Feb 27
by
anonymous
What are the factors that limit the maximum power transfer capability in a transmission line?
Last Answer : Answer: Some of the factors which limits the maximum power transfer are: 1. Electrical phase shift 2. Voltage drop 3. Thermal effects in the line
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39 views
1 answer
For transmission of power over a distance of 500 km, the transmission voltage should be in the range (a) 150 to 220 kV (b) 100 to 120 kV (c) 60 to 100 kV (d) 20 to 50 kV
Last Answer : (a) 150 to 220 kV
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40 views
1 answer
Constant voltage transmission entails the following disadvantage (a) large conductor area is required for same power transmission (b) short-circuit current of the system is increased (c) either of the above (d) none of the above
Last Answer : (b) short-circuit current of the system is increased
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12 views
1 answer
For transmission of power over a distance of 200 km, the transmission voltage should be (a) 132 kV (b) 66 kV (c) 33 kV (d) 11 kV
Last Answer : (a) 132 kV
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53 views
1 answer
