Explain the “mitigation of power theft” and “faulty meter replacement” for energy conservation techniques to reduce commercial losses.
Last Answer : Energy conservation techniques to reduce commercial losses: 1. Mitigation of Power Theft: Power theft being the most important issue which all of the service providing utilities ... agricultural sector. Prepaid meters may prove effective measures against unauthorized abstraction of energy.
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121 views
1 answer
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Sep 22, 2018
by
anonymous
Last Answer : To protect most of the electrical equipment handling low power, the types of relays used are thermocouple, electronic and bimetallic.
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106 views
1 answer
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Mar 20, 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 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
What is the percentage of stray losses in DC machine?
Last Answer : Percentage of stray losses in DC machine is about 1 % .
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116 views
1 answer
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Mar 8, 2018
by
anonymous
derive an expression for the Ripple factor in a full wave rectifier using inductor filter
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13 views
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Describe the operation of inductor filter with help of circuit diagram and waveforms.
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5 views
0 answers
State the applications and specification of (i) Resistor (ii) Capacitor (iii)Inductor
Last Answer : Application of resistor: 1.Resistors are used in high frequency instrument. 2.Resistor is used in power control circuit. 3.It is used in DC power supplies. 4.Resistors are used ... DC Current 3.Electromagnetic Interference (EMI) 4.Magnetic Saturation Flux Density 5.Curie Temperature
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241 views
1 answer
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May 2, 2020
by
anonymous
Why inductor current lags inductor voltage ?
Last Answer : Inductor is a wire wounding structure having a core material it induces emf which is opposite to the voltage supply and proportional to rate of change of current so current lags the voltage in inductor
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112 views
1 answer
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May 24, 2019
by
anonymous
An inductor is connected in series with SCR to protect it from A) Excessive high voltage B) Excessive high dv/dt C) Excessive high di/dt D) Excessive large forward current
Last Answer : An inductor is connected in series with SCR to protect it from Excessive high di/dt
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130 views
1 answer
asked
Jun 18, 2018
by
anonymous
An inductor of Q factor 10 is connected in series with a capacitor having a Q factor of 100. The overall Q factor of the circuit is : (A) 100/11 (B) 11/100 (C) 110 (D) 1000
Last Answer : An inductor of Q factor 10 is connected in series with a capacitor having a Q factor of 100. The overall Q factor of the circuit is : 100/11
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206 views
1 answer
asked
Apr 30, 2018
by
anonymous
What is back EMF in inductor?
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138 views
0 answers
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Mar 15, 2018
by
anonymous
Explain design constraint of filter inductor design.
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58 views
0 answers
asked
Mar 10, 2018
by
anonymous
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Explain the characteristics of inductor to be considered while designing it. What is the effect of over current and increase in temperature on inductor.
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69 views
0 answers
asked
Mar 10, 2018
by
anonymous
Explain the iterative inductor design procedure. Show the design procedure flowchart.
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100 views
0 answers
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Mar 10, 2018
by
anonymous
What is the difference between a coil and an inductor?
Last Answer : Inductor is covering with insulating material is called coil.so they differentiate between coil and inductor.
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110 views
1 answer
asked
Dec 16, 2017
by
anonymous
Explain the on state losses in power BJT.
Last Answer : On state losses in power BJT: Transistor have four types of losses one is turn on state losses second is turn off state losses third is turn on switching losses and fourth is turn ... ON = VCE sat x IC With increasing collector current collector to emitter saturation voltage increases.
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295 views
1 answer
asked
Sep 15, 2017
by
anonymous
State the losses in secondary distribution system.
Last Answer : The losses in secondary distribution system: a) Technical losses: 1. Due to poor voltage 2. Due to unbalance load 3. Due poor quality of transformer & its components 4. Due to poor quality ... of induction type of energy meter. 3. Lack of administration. 4. Energy theft 5. Unmetered supply
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122 views
1 answer
asked
May 3, 2020
by
anonymous
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 friction losses in Real Transformers are : (A) 0% (B) 5% (C) 25% (D) 50%
Last Answer : A
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3.3k views
2 answers
asked
May 8, 2018
by
anonymous
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Which of the following can reduce the Eddy current losses? A) By making the core of a stack of plates electrically insulated from each other B) By making the core of solid block C) By increasing the applied voltage D) None of these
Last Answer : Which of the following can reduce the Eddy current losses? A) By making the core of a stack of plates electrically insulated from each other B) By making the core of solid block C) By increasing the applied voltage D) None of these
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90 views
1 answer
asked
Apr 29, 2018
by
anonymous
In DC motor iron losses are occurred in?
Last Answer : In DC motor iron losses are occurred in the armature.
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138 views
1 answer
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Mar 26, 2018
by
anonymous
Last Answer : Iron losses in a D.C. machine are independent of variations in load.
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161 views
1 answer
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Mar 20, 2018
by
anonymous
Last Answer : In case of D.C. machines, mechanical losses are primary function of speed.
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500 views
1 answer
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Mar 20, 2018
by
anonymous
Last Answer : In a D.C. generator, the iron losses mainly take place in armature rotor.
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273 views
1 answer
asked
Mar 20, 2018
by
anonymous
Last Answer : The total losses in a well designed D.C. generator of 10 kW will be nearly 500 W.
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138 views
1 answer
asked
Mar 20, 2018
by
anonymous
Reduction in core losses and increase in permeability are obtained with transformer employing?
Last Answer : Reduction in core losses and increase in permeability are obtained with transformer employing core built-up of laminations of cold rolled grain oriented steel.
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615 views
1 answer
asked
Mar 19, 2018
by
anonymous
Losses which occur in rotating electric machines and do not occur in transformers are?
Last Answer : Friction losses windage losses
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208 views
2 answers
asked
Mar 19, 2018
by
anonymous
In a given transformer for a given applied voltage, losses which remain constant irrespective of load changes are?
Last Answer : In a given transformer for a given applied voltage, losses which remain constant irrespective of load changes are hysteresis and eddy current losses.
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152 views
1 answer
asked
Mar 19, 2018
by
anonymous
Auto-transformer makes effective saving on copper and copper losses, when its transformation ratio is?
Last Answer : Auto-transformer makes effective saving on copper and copper losses, when its transformation ratio is approximately equal to 1.
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160 views
1 answer
asked
Mar 19, 2018
by
anonymous
In a synchronous motor which losses varies with load?
Last Answer : In a synchronous motor, copper losses varies with load.
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102 views
1 answer
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Mar 18, 2018
by
anonymous
Explain the electrical losses of magnetic materials used for the cores of inductors and transformer.
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87 views
0 answers
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Mar 10, 2018
by
anonymous
What are the losses in a transmission line?
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61 views
0 answers
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Mar 10, 2018
by
anonymous
In synchronous motor, does the winding losses vary with load?
Last Answer : No, in the synchronous motor the winding losses do not vary with load.
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512 views
1 answer
asked
Mar 3, 2018
by
anonymous
Last Answer : Iron loss, copper loss and mechanical losses these are the losses in DC machine.
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118 views
1 answer
asked
Sep 27, 2017
by
anonymous
List the types of filters.
Last Answer : Types of filter are as follows: 1. Shunt Capacitor filter (C filter) 2. Series Inductor filter (L filter) 3. LC filter 4. π filter (CLC filter)
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74 views
1 answer
asked
May 16, 2020
by
anonymous
Define Multivibrator. State the types of multivibrator. Which M/V can be used as a flip-flop? Draw the circuit diagram.
Last Answer : Definition:- A multivibrator is an electronic circuit that switches rapidly by means of positive feedback between two or more states. OR A multivibrator is an electronic circuit used to implement a ... Bistable Multivibrator: it can operate as a flip-flop, Circuit diagram
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130 views
1 answer
asked
May 2, 2020
by
anonymous
What are the different types of capacitors?
Last Answer : (b) is facilitated by telomerase
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88 views
1 answer
asked
Mar 15, 2018
by
anonymous
What are the types of biasing?
Last Answer : Biasing is classified into 2 types.The 2 types are 1) Forward biasing 2) Reverse biasing
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149 views
1 answer
asked
Mar 10, 2018
by
anonymous
Last Answer : MOSFETs are of two types namely 1) enhancement type MOSFET or E-MOSFET 2) depletion type MOSFET or D-MOSFET
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121 views
2 answers
asked
Sep 22, 2017
by
anonymous
A capacitor-start single phase induction motor is switched on to supply with its capacitor replaced by an inductor of equivalent reactance value. It will?
Last Answer : A capacitor-start single phase induction motor is switched on to supply with its capacitor replaced by an inductor of equivalent reactance value. It will not start at all.
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231 views
1 answer
asked
Mar 20, 2018
by
anonymous
Anyone care to join me in a quiet prayer for Jeret "Speedy" Peterson?
Last Answer : Not to sound cold, but it won’t help at this point.
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0 views
1 answer
asked
Feb 27
by
anonymous
Types of Fire Extinguishers? Use of Fire Extinguisher ?
Last Answer : Ans. CO2 Type Fire Extinguishers, DCP type Fire Extinguishers Used for extinguishing fires of (1) Solid fires (2) Liquid fires (3) Gasfires(4)Electric
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6 views
1 answer
Wiring – types
Last Answer : Ans) a. Casing & Capping b. Concealed wiring c. Cleat Wiring d. Conduit Wiring – Cutting of wall.
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27 views
1 answer
Enlist the types of shapers.
Last Answer : Types of shapers: Based on the type of driving mechanism: a) Crank type shaper. b) Geared type shaper. Based on ram travel: a) Horizontal shaper. b) Vertical shaper. Based on the table design: a ... shaper. b) Universal shaper. Based on cutting stroke. a) Push cut type. b) Draw cut type.
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40 views
1 answer
asked
Jan 2, 2021
by
anonymous
Define earthing. State its types.
Last Answer : Definition of earthing: * Earthing means connecting the metal body of electrical device to the general mass of earth by a wire of negligible resistance. OR * Earthing means connecting the metal body of ... ii) Pipe type earthing iii) Rod type earthing iv) Strip earthing v)Water main earthing
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120 views
1 answer
asked
May 7, 2020
by
anonymous
State the types of protections provided by MCB.
Last Answer : The types of protections provided by MCB: 1. MCB provides short circuit protection. 2. MCB provides overload protection
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76 views
1 answer
asked
May 7, 2020
by
anonymous
State different types of holders used in wiring installation.
Last Answer : Following types of holders used in wiring installation: 1. Pendent Holder 2. Batten Holder 3. Angle holder 4. Screwed holder
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90 views
1 answer
asked
May 7, 2020
by
anonymous
Types of rolling mills and its applications
Last Answer : Types of rolling mills and its applications (1) Two-high rolling mill: used in blooming and slabbing mills (2) Three-high rolling mill: used for making plates or sections. (3) Four- ... : This mill is used for rolling stainless steel and other high strength steel sheets of thin gauge.
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57 views
1 answer
asked
May 7, 2020
by
anonymous
