Classify faults in brief

Q: e) Explain the most harmful harmonics for power transformers.

A: Need to find most harmful harmonics for power transformer

Q: Measurement CT should not saturate by design during fault True False

A: the measurement CT and the protection CT design is different in terms of the rating

Q: Current setting of a relay is used to set the operating time of relay during fault condition O True…

A: Current setting of relay is used to set the operating time of relay during fault condition? True…

Q: The circuit breakers operate during transients, then why sub transient calculations are important…

A: Circuit breaker(CB) generally has two ratings,one is (1) making current and the other is (2)…

Q: Function of circuit breaker!

A: A mechanical device called a circuit breaker is made to shut or open contact members, which closes…

Q: (a) Explain the following picture and its' importance in selection of circuit breakers Extinction of…

A: Electrical power systems require some switchgear that can be controlled with ease and regulate with…

Q: What Transient Voltage appears across the Circuit Breaker contacts at, or near Current Zero during…

A: Correct option is C) RESTRIKING VOLTAGE   As per the definition of restriking voltage  Restriking…

Q: Define unit and non-unit protection, illustrate the operating principle of differential protection…

A: Unit type schemes shield a specific area of the machine i.e. a transformer, transmission line,…

Q: The cause of electric power system faults is __________________

A: Electric power system fault: A fault or fault current is any abnormal electric current in the…

Q: Explain the function of Buchholz relay, why this relay is so important to be used on high rating…

A: FUNCTION OF BUCHHOLZ RELAY: "Max Buchholz" implemented the Buchholz Relay for the first time in…

Q: the fault current for a

A: Types of open circuit fault- 1) Symmetrical fault- Three phase line to ground fault  Three phase…

Q: What are the possible faults in underground cables. Illustrate the methods of fault localization.

A:

Q: "The arc across the contacts of circuit breaker will re-strike, if the rate of rise of re-striking…

A: Circuit breaker: An electrical circuit breaker is a switching device that may be used to manage and…

Q: In which type of fault diagnosis the fault can be identified by visual inspections of any loose…

A: In this question we are going to study about the different techniques of finding the faults in a…

Q: What is the edge of using Phase Locked Loop Demodulator rather than other FSK demodulator circuits?

A: Lock section lock, PLL is a very useful RF building block. PLL uses the concept of minimizing the…

Q: Describe in brief about clock methodology.

A:

Q: Explain the following picture and its' importance in selection of circuit breakers. Extinction of…

A: to explain the following picture and its importance in selection of circuit breakers

Q: What are different types of fault in electrical power system

A: The fault in the power system is expressed as the any unwanted or abnormal condition of the system…

Q: complet The equivalent reactance of the double circuit line under post fault condition…

A:

Q: Why physical inspection is necessary for Fault Diagnosis? Explain the solutions for common faults…

A: The power system has to transmit power from the generation side to the load side. For this purpose,…

Q: An equation for the fault current when a line-to-line fault occurs ,…

A:

Q: A power system is divided into 10 protection zones, as illustrated in the figure below. If a fault…

A: Protective zones are planned in a such way that the zones cover entire power network. Overlapping of…

Q: Duestion of Write down the construction alternatOx with the an of diagram of operation. and write…

A: The alternator is also called the synchronous generator is an electrical machine that is used to…

Q: Higher values of PSM in relay is indicating the severity of the fault True False

A: Plug setting multiplier: It is a ratio between the fault current in the relay in the operating coil…

Q: Explain with a neat block diagram the measurement of displacement using RTD (measuring System)

A:

Q: Differentiate Phase Reversal Protection between Phase Failure Protection

A: Differentiation Phase Reversal Protection between Phase Failure Protection- Phase-failure protection…

Q: 10. In high-voltage switch gear, the irsulation used inside the breaker (arc chambers) is (a) Epoxy…

A: In high voltage switch gears, the insulation used in the arc chamber is generally epoxy raisins.

Q: Find the effect of ‘clearing time’ on transient stability.

A: Clearing Time:The Time at which fault cleared by the opening of the line circuit breaker so that the…

Q: None Explain Avalanche breakdown in detail. Show with the help of diagramtic representation.

A: According to the given question, complete explanation of avalanche breakdown along with diagram is…

Q: Which are the safety precautions can take for the prevention of asymmetrical faults?

A: Unsymmetrical faults : Unsymmetrical faults are defects that produce asymmetrical current flow (i.e.…

Q: Flashing DC genreto

A: Flashing in DC Generator is completely related to the field winding of it. self excited DC generator…

Q: Severity of fault is expressed in terms of Magnitude of Recovery Types of fault All of these the…

A: If the magnitude of the fault current is high then this current is more severe as compared to the…

Q: ransmission line

A:

Q: During faulty condition, high short circuit current

A: Due to No separation of primary and secondary windings hencw hysteresis doesn't apply.

Q: What are electrical techniques used for failure analysis

A: The process of identifying and, in most cases, seeking to reduce the fundamental cause of a failure…

Q: Measurement CT should not saturate by design during fault O True False

A: Solution - true Current transformer(ct)  function to be replicate the primary current waveform at…

Q: Dc motor control using L298N module. Write the code to drive a dc motor using L298N module in…

A: L298N module motor drive module is used to control the direction and the speed of the motors at a…

Q: Explain with a neat block diagram the measurement of displacement using RTD (measuring system).

A: RTD's working principle is that the electric resistance of a metal  changes due to change in…

Q: Explain briefly the Lightning Strike Structural Procedures and what the external components most…

A: It is asking to explain the Lightning Strike Structural Procedures. We will explain the lightning…

Q: Which of the following characterizes series faults?

A: In the  power system, a series fault occurs when one or more transmission line conductors  fails .It…

Q: Write about fault tolerance.

A: We have given the following problem Write about fault tolerance.

Q: which type of fault diagnosis the fault can be identified by PCB testing ? a. Replacement b.…

A: Fault diagnosis is determining which fault is occurred

Q: "The arc across the contacts of circuit breaker will re-strike, if the rate of rise of re-striking…

A: Restriking voltage is the voltage that appears across the contact of the circuit breaker during the…

Q: Mention the difference between Zener and avalanche breakdown.

A: Breakdown takes place in reverse biased p-n junction diodes. During break down, the value of the…

Q: Briefly describe the trade-offs between ripple adders and adders with carry look-ahead.

A: In the ripple adder the carry output of one adder acts as carry input to next adder so Time Dalay is…

Types of Charge Carriers

A carrier is a type of object which carries a particular thing from one point to another point. For instance, people use different vehicles from one place to another, and the vehicle carries those people and acts as a carrier.