Thyristor can be protected from over voltages by using
Last Answer : Thyristor can be protected from over voltages by using Voltage clamping device
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May 8, 2018
by
anonymous

Leakage current flows through the thyristor in
Last Answer : Leakage current flows through the thyristor in Forward blocking mode and Reverse blocking mode.
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211 views
1 answer
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May 8, 2018
by
anonymous

What is a phase control thyristor?
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Mar 19, 2018
by
anonymous

Why thyristor are not preferred for inverter?
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454 views
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Mar 19, 2018
by
anonymous

What is thyristor family?
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Mar 19, 2018
by
anonymous

What is meant by firing angle of thyristor?
Last Answer : The point at which SCR is triggered is known as firings angle of thyristor.
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230 views
1 answer
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Mar 19, 2018
by
anonymous

What is the use of a thyristor in a circuit?
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2.9k views
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Mar 19, 2018
by
anonymous
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What is a reverse conducting thyristor?
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Mar 19, 2018
by
anonymous

What is the function of a thyristor?
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Mar 19, 2018
by
anonymous

Why SCR is called as thyristor?
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Mar 19, 2018
by
anonymous

Is a SCR a thyristor?
Last Answer : Yes, SCR is a thyristor. Thyristor is the family and SCR is the member of that family but SCR is universally known as thyristor.
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161 views
1 answer
asked
Mar 19, 2018
by
anonymous

How is a thyristor used to convert AC to DC?
Last Answer : thyristor
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1 answer
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Mar 19, 2018
by
anonymous

What is the application of thyristor?
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0 answers
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Mar 19, 2018
by
anonymous

Last Answer : Yes ,it is one of the main advantage using thristors as a switch in DC circuit ,it has a high current gain
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161 views
2 answers
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Mar 6, 2018
by
anonymous
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Explain thyristor gate drive circuit.
Last Answer : Thyristor Gate Drive Circuit: The thyristor can be turned on by pulse voltage signal at gate terminal and it does not require continuous drive signal like the transistor. The gate ... circuit provide required minimum gate voltage and gate current then the thyristor conducts properly.
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3.0k views
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Feb 19, 2018
by
anonymous

parallel operation of MOSFET can be done more easily as compared to thyristor. why?
Last Answer : Parallel operation of MOSFET can be done more easily as compared to thyristor because the resistance of MOSFET is increases with increase in temperature. MOSFET have the positive temperature coefficient. In ... the parallel operation of MOSFET can be done more easily as compared to the thyristor.
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300 views
1 answer
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Dec 7, 2017
by
anonymous

write short notes on thyristor CSI .
Last Answer : Current-source inverter (CSI) is an inverter with a DC current input. Current source inverters are most commonly used in very high power AC motor drives.
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2 answers
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Nov 15, 2017
by
anonymous

Draw the structural diagram of GTO. Explain briefly the switching behavior of GTO with the help of appropriate voltage and current waveform.
Last Answer : Gate Turn Off Thyristor (GTO) Conventional Thyristor can be turned on with gate terminal but can not turn off from gate terminal. But in case of Gate Turn Off Thyristor (GTO), we can turn it on and off ... subdivided as storage period (Ts), fall period (Tp) and tail period (Tt).
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1.7k views
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Aug 8, 2017
by
anonymous

What are the disadvantages of the linear regulator? how are they overcome in the switching regulator? What is continuous and discontinuous mode switching regulator?
Last Answer : Disadvantages of the linear regulator: Linear regulator waste power in the form of heat. Linear regulator has very low efficiency. Linear regulator cannot be used for the step ... between continuous mode and discontinuous mode switching regulator.
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106 views
1 answer
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Feb 11, 2018
by
anonymous
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Describe the working principle of Thyristor operated dimmer with the help of circuit diagram.
Last Answer : Thyristor operated dimmer: A popular thyristor operated dimmer circuit employ TRIAC-DIAC phase control for low AC power control. During each half-cycle, the capacitor charges through (R1+VR1). When the ... time constant {C (R1+VR1)}. Thus by reducing VR1 the lamp brightness can be increased.
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1 answer
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May 3, 2020
by
anonymous
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Last Answer : By using some circuit the forward DC current of thyristor is forced to zero is called forced commutation.
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1 answer
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Sep 21, 2017
by
anonymous

Last Answer : Natural commutation is also called as line Communication. The turning off of thyristor due to AC supply is called natural commutation or line commutation. If the thyristor is connected to AC supply ... connected to positive and anode terminal get connected to negative, this turns off the thyristor.
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108 views
1 answer
asked
Sep 21, 2017
by
anonymous
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Last Answer : No we cannot turn off normal thyristor using Gate.
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92 views
1 answer
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Sep 21, 2017
by
anonymous

Last Answer : Thyristor conducts when the anode voltage is greater than cathode and when the current provided to Gate.
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1 answer
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Sep 21, 2017
by
anonymous
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Last Answer : Thyristor have three terminals anode, cathode and Gate.
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1 answer
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Sep 21, 2017
by
anonymous

thyristor can be turned off by?
Last Answer : Thyristor can be turned off by making anode potential equal to cathode potential or by making anode potential less than cathode potential.
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1 answer
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Sep 10, 2017
by
anonymous

Last Answer : Thyristor commutation means turning off thyristor.
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1 answer
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Sep 10, 2017
by
anonymous

Last Answer : Thyristor can only be turned on by small gate pulse but it cannot be turn off by using gate hence thyristor is called semi controlled device.
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1.1k views
1 answer
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Sep 10, 2017
by
anonymous

Last Answer : Thyristor can be turn on by positive gate pulse and the current will continue to flow through the device even when the gate voltage is low hence thyristor is called latching device.
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915 views
1 answer
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Sep 10, 2017
by
anonymous

Thyristor Switched Capacitor (TSC)
Last Answer : Thyristor Switched Capacitor (TSC) TSC is a static compensator. TSC is use for compensating reactive power. Compensation is required for voltage regulation, increasing stability, ... compensating device like TCS phase angle between voltage and current can be maintain.
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202 views
1 answer
asked
Aug 9, 2017
by
anonymous

State the disadvantages of skin effect.
Last Answer : Disadvantages of skin effect:- 1. Full cross section of conductor is not utilized, Therefore effective area of conductor reduces so its resistance increases. 2. Due to increase in resistance, copper ... increases (Since Voltage drop = IR ) 5. So voltage regulation becomes poor (increases)
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253 views
1 answer
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May 22, 2020
by
anonymous

State advantages and disadvantages of radial distributor system.
Last Answer : Advantages of radial distributor system: 1. Design of layout is simple. 2. Capital cost & Erecting cost is less as there is only one feeder. 3. Time required for completion of ... maintain supply to consumers when there is maintenance on feeder. 3. Voltage fluctuations are more.
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422 views
1 answer
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May 22, 2020
by
anonymous
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advantages and disadvantages of ICs.
Last Answer : Advantages of ICs: 1.The physical size of an IC is extremely small (generally thousand times smaller) than that of discrete circuits. 2. The weight of an IC is very less as compared to that of ... is high 3. Power dissipation is limited. 4. ICs are very delicate and need extra care while handling
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88 views
1 answer
asked
Aug 19, 2019
by
anonymous

What are advantages and disadvantages of Mechatronics system?
Last Answer : Advantages of Mechatronics system: High level of integration. Increased functionality and better design. More use of electronics and software instead of mechanical function. Assumes ... Its replacement is difficult, that it is difficult to change old system to new system.
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2.4k views
1 answer
asked
Aug 10, 2019
by
anonymous
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State advantages and disadvantages of fiber optic communication
Last Answer : Advantage of fiber optic communication: 1.Greater information capacity/ higher bandwidth OFC's are capable of transmitting several gigabits per second over hundreds of miles allowing millions of ... are not flexible 7.Requiring more protection around the fiber cable compared with copper cable
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2.4k views
1 answer
asked
Aug 8, 2019
by
anonymous

State advantages and disadvantages of continuous wave Radar
Last Answer : Advantages continuous wave RADAR : 1.Single frequency transmission and hence narrow receiver bandwidth 2.Duty cycle is unity, so mean power can be as high as transmitters will permits. 3.Ability ... required for receiver and transmitter. 3.Cannot detect targets crossing its beam at right angles.
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116 views
1 answer
asked
Aug 8, 2019
by
anonymous

State advantages & disadvantages of electromagnetic flow meter.
Last Answer : Advantage: Provides wide linear range. 2) Ability to measure reverses flow. 3) Gives rapid response to flow changes. 4) No obstruction is created to flow. 5) It can handle corrosive as ... and pipe networks with relatively short inside diameters. 3) It is useful for electrically conducting fluid.
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79 views
1 answer
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Aug 5, 2019
by
anonymous

List advantages and disadvantages of MEMS.
Last Answer : Advantages : 1. Batch fabrication and hence reduced cost. 2. Reduced size and reduced power ( due to pin size and reduced package volume) 3. High precision and resolution. 4. Reduced ... cannot be loaded with large forces because brittle materials can be fractured easily under high stress.
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72 views
1 answer
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Jul 21, 2019
by
anonymous

What are the disadvantages of Open loop control system?
Last Answer : Open loop control system are less reliable. In open loop control system Optimization is not possible. Open loop control system are less accurate.
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111 views
1 answer
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Jul 4, 2019
by
anonymous

State the advantages and disadvantages of hydroelectric power plant.
Last Answer : Advantages of Hydroelectric power plant:- 1. There is no air pollution and other environmental problems. 2. The fuel (water) is available freely. 3. No fuel transportation cost so; there is ... , this can force the relocation of large numbers of riverside cities, towns, villages & people.
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87 views
1 answer
asked
Sep 8, 2018
by
anonymous

State any two advantages and two disadvantages of nuclear power plant.
Last Answer : Disadvantages of Nuclear Power Plant: - 1. The capital cost of Nuclear power plant is very high as compare to other power plant of same capacity. 2. The erection & ... material could be released into the environment. Causing extensive damage to the mankind,animals and environment.
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167 views
4 answers
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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123 views
1 answer
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Sep 7, 2018
by
anonymous

Write any four advantages and four disadvantages of thermal power plant.
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%; }
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169 views
3 answers
asked
Sep 7, 2018
by
anonymous
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Write any two disadvantages of hydro power plant.
Last Answer : Disadvantages of hydro power plant: i) Due to high cost of civil engineering works, the capital cost per kW of hydro plants is considerably higher than that of steam plants. ii) Hydro ... ) Hydro plant reservoir submerges huge areas, uproots large population and creates social and other problems.
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79 views
1 answer
asked
Sep 7, 2018
by
anonymous

Write any two disadvantages of ammeter shunts.
Last Answer : Disadvantages of ammeter shunts: 1. Errors are caused because of change in temperature. 2. Most suitable for DC measurement. 3. Power loss takes place.
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168 views
1 answer
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Sep 6, 2018
by
anonymous

State any two disadvantages of one wattmeter method of measurement of 3 phase power.
Last Answer : State any two disadvantages of one wattmeter method of measurement of 3 phase power. Disadvantages of one wattmeter method:- 1. Only used for balanced load 2. It can not be used for ... connection then neutral point must be available 4. Delta connection must be opened to connect current coil.
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1.8k views
1 answer
asked
Sep 6, 2018
by
anonymous

Write advantages and disadvantages of positive and negative feedback.
Last Answer : Advantages of Positive Feedback: i) Voltage gain increases. ii) No phase shift is provided. iii) Feedback signal and input signal are in phase. iv) Input and Output voltage increases. ... ii) Feedback signal and input signal are out of phase. iii) Input and Output voltage decreases.
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4.2k views
1 answer
asked
Sep 5, 2018
by
anonymous

The main disadvantages of having poor power factors are: (A) High cost of station and distribution equipment (B) Poor voltage regulation (C) High energy loss in conductor (D) All of the above
Last Answer : The main disadvantages of having poor power factors are: (A) High cost of station and distribution equipment (B) Poor voltage regulation (C) High energy loss in conductor (D) All of the above
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68 views
1 answer
asked
May 8, 2018
by
anonymous

Explain the advantages and disadvantages of using memory I/O and standard I/O.
Last Answer : Memory mapped I/O and standard I/O are the two methods for communicating microprocessor with peripherals. Processor talks to both memory and peripheral using the same bus.Two ways to talk to a peripheral. ... of standard I/O is no loss of memory addresses to the use as I/O addresses.
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171 views
1 answer
asked
Mar 26, 2018
by
anonymous

What are the advantages and disadvantages of automation?
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108 views
0 answers
asked
Mar 10, 2018
by
anonymous
