In a thyristor-controlled reactor, the conduction angle is:

Q: Eriefly explain half wave f Rectifies cirwit with (apacitive tilter.

A: Rectifier is device which convert alternating signal in to pulsating direct signal. The half wave…

Q: Load Resistance used in ohms Primary coil turns (Np) Secondary coil turns (Ns)

A: Dear student as per our guidelines we are supposed to solve only one question in which it should…

Q: 20. What capacitance value is required for each of the varactors in Figure 3–78 to produce a reso-…

A: Given Data: L = 2 mH f = 1 MHz

Q: converter topologies in pv system

A: It is asked to discuss about the converter topologies in PV system.

Q: The reverse breakdown voltage of LED is very low. True O False

A: This question belongs to basic electronics . It is about breakdown voltage of LED . It is…

Q: i. Draw the Buck Boost converter circuit. ii. Determine the value of duty cycle (D) and inductor…

A:

Q: An iron ring elecromagnet has a relative permeability of 1250 when it is excited by a coil having…

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Q: Transient stability of the power system can be improved by using. O Parallel Lines Single Lines O…

A: The transient stability of power system can be improved by using many ways. One such technique is by…

Q: 3. A coil has an inductive reactance of 75 Q and a wire resistance of 18 Q. What is the Q of this…

A:

Q: Compared to synchronous condensers, static capacitors have O Low thermal stability to short circuit…

A: Need to find true statement

Q: If in an iron cored coil the iron core is removed so as to make the air cored coil, the * inductance…

A: It is known that iron has more permeability than air and permeability is directly proportional to…

Q: For the following circuit if the secondary voltage of the transformer is 20V rms, the PIV of the…

A:

Q: The temperature measurement capability of thermocouples are in the range of 0-60°C. Select one: O…

A: Need to find true false

Q: At -- angle, the three phase full converter drive gives an armature voltage of 220V, while the AC…

A: Choose the correct option What is firing angle of the converter.  If the terminal voltage = 220V and…

Q: نقطت * The value of inductance of the coil is dependent on

A: Inductance of the coil is given by : L=μN2Al Here, μ is magnetic permeability  N is number of turns…

Q: Specify the LM-series linear regulator required to regulate a fixed voltage of -9 V. Please write…

A: To specify the LM series linear regulator required to regulate a fixed voltage of -9 V

Q: Identify the position of plunger in a LVDT in which emf induced in upper secondary coil is equal to…

A: we need to choose the correct option for the given statement.

Q: Rated wind speed is the minimum operational speed of the wind turbine. Select one: O True O False

A: In this we will write about rated wind speed of wind turbine...

Q: A PWR type Nuclear power plant have a core height of ___

A: Pressurized water reactor (PWR) is the one of the type of light water nuclear reactor.

Q: In single phase fully controlled converter, if the form factor is 2.75 then the ripple factor of the…

A: We know relationship between ripple factor and form factor , from that formula we will find out…

Q: 1) Resistor 2) Variable resistor 3) Ceramic capacitor 4) LED 5) Diode 6) Electrolytic capacitor 7)…

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Q: Two inductors or coils sharing a common magnetic field or core is a transformer. A changing voltage…

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Q: In a 3-phase rotary converter, what is the ratio of the AC voltage to DC voltage?

A: Thyristor is a Unidirectional Semiconductor device. It has 4 terminals. It is the most used device…

Q: Systems with bundled conductors have lower Charging current O Power factor Capacitance to neutral O…

A: Bundle conductor is done to- reduce corona lass decrease inductance increase capacitance Improve…

Q: short circuit current

A: Transformer- A device that transfers the electrical energy between two electrical circuits which are…

Q: The inductive reactance (in ohms)

A:

Q: The control grid of CRO is connected to the Oalternating curre.t source O Positive voltage Negative…

A: The control grid of CRO is connected to the   The control grid is in middle of the cathode and…

Q: Question: In morgan chopper the capacitor voltage -Edc is applied on the saturable reactor in the…

A:

Q: A single-phase semi-converter is operated form 120 V, 50 Hz AC supply at a firing angle of 30…

A: Given: A single phase semi-converter is operated from 120 V, 50 Hz with, Firing angle, α=30°

Q: Iron material is used for the design of Fuse Select one: O True O False

A: Material required for design the fuse     as per our guidelines we are supposed to answer only one…

Q: A synchronous condenser has a synchronous reactance of 0.75 p.u. Given that it operates at its…

A: The complex power in an AC system is defined as the product of rms value of applied voltage and…

Q: Match The following. pyrolysis reactor produces liquid of 75%. Choose. pyrolysis reactor produces…

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Q: In this Design, the value of RB is determine +Vcc Relay coil 2₂ RB Intensity of illumination 2₁ Ο ΙΕ…

A: Consider the given diagram for the transistor with the photo-transistor.

Q: Identify the low voltage system from the following. a. primary distribution b. Secondary…

A: A low-voltage network, sometimes known as a secondary network, is a component of electric power…

Q: What type of inductor is shown below? O variable Toroidal air core iron core

A: In this question we need to choose a correct option.

Q: Question: In commutation method the charged capacitor mnomentarily reverse biases the conducting SCR…

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Q: LM 317 is an adjustable voltage regulator. O True O False

A: LM 317 is a voltage regulator capable of giving variable voltage at the output terminal.

Q: The maximum current rating

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Q: Calculate the rms value of the output voltage of an AC-AC converter with the following…

A: First we will draw the output of the ac voltage converter and than we will find RMS voltage.

Q: In induction type energy meter, meter constant of energy meter is given by

A: Given  Meter constant  value =?

Q: Ripple factor of single phase fully controlled converter is 5.1; Choose the correct form factor of…

A:

Q: To control a purely resistive load by a thyristor, the range of the firing angle degrees must be:

A: a resistive load is given and we need to find the range of firing angle in degree

Q: A certain unfiltered half wave rectifier circuit is powered by the 120 Vrms ac power system and the…

A:

Q: What is the maximum recommended limit of RMS voltage (in percent) for continuous operation of shunt…

A: Answer is 110%. This is the nominal fundamental voltage across the capacitor. It should be adjusted…

Q: A single phase full wave AC voltage controller has a resistive load of 5 ohms and an input voltage…

A: Thyristor maximum RMS value occurs at α=0, So by putting α=0 in RMS current equation and average…

Q: In induction type energy meter , is a M shaped Silicon Steel laminated assembly placed above the…

A: In induction type energy meter,  the potential coil is placed on the central limb of shunt magnet.…

HVDC

HVDC stands for high voltage direct current in the electric power transmission system. The high voltage direct current system uses direct current (DC) for the transmission of electrical power through transmission lines in contrast with the alternating current that is the AC system. The HVDC is used to transmit bulk power point-to-point through long distances transmission lines. Power is rapidly transferred because the efficiency of transmission lines is greatly increased over long distances due to HVDC lines.