Q)Write a report about relay and the difference between relay and contactor?

Q: B) Talk about the electronic relays and its difference from the conventional relays.

A: Relays: The device that opens and closes circuits either electromechanically or electronically is…

Q: Question7: Suppose that an electromechanical relay has a coil voltage rating of 5 volts, and a coil…

A:

Q: Identify the DC Generator used for Arc welding purpose. With a neat sketch explain its working. list…

A: Arc Welding is process which used arc to melt and join the metals. For the purpose of generation of…

Q: QD: what is the Relay and its applications

A: The symbol of the relay is as follows

Q: a)What is Time Setting Multiplayer of relay? Give formula and one example. b)What is Plug Setting…

A: Time Setting Multiplayer of relay It has to do with the relay's functioning time during faults. To…

Q: Question 4:What would happen if the series properties of the DC compound generato were as much as…

A: NOTE: “Since you have asked multiple question, we will solve the first question for you. If you want…

Q: mechanically held relays energy saving devices

A: In a mechanical relay, the value contact resistance is very low near 0.05 ohms For an example Let us…

Q: Write a report about Relay types.

A: Depending upon the structural features and operating principles there are several types of relays,…

Q: Question Electromagnetic Induction type relays are True widely used to protect the DC network False

A: In this question , we will write about relay used for dc network....

Q: Advantage of DC transmission over AC.

A: A high-voltage,DC electric power transmission system uses DC for the bulk transmission of electrical…

Q: Question 7 Which of the following is the attribute of a good relay? O Speed Selectivity Reliability…

A: A simple problem on power system.

Q: 2- Could you design a control circuit for a conveyor belt with 5 motors?

A: The figure will make the five motors to start in sequence. Motor 1 will be going to start…

Q: If the current is 2000 A for relay with a current setting of 50% and CT ratio of 1000:1, the PSM…

A: In this question we will find PSM...

Q: In short tell the difference in the stepper and servo motor.

A: The difference in the Stepper and Servo motor: The difference in the Stepper and Servo motor: The…

Q: Ising the single line diagram shown in the figure, and the time-delay overcurrent relay operating…

A: using the single line diagram shown in figure and the time delay over current relay operating…

Q: What is the difficulty of AC operation of electromagnetic attraction relay? Show in a diagram

A: Electromagnetic relays are the relays which operates on the principle of electromagnetic attraction.…

Q: Why Impedance relay is also known as Distance relay? Describe its working principle

A: Why impedance relay is known as Distance relay ?

Q: 14 Open- and short-circuit test has been performed of a synchronous machine 45-kVA, three- phase,…

A: Unsaturated synchronous reactance is calculated using Vph on airgap line and armature current at…

Q: Which of the following is the attribute of a good relay? O Speed O Selectivity O Reliability O All…

A: A good relay should be having a combination of Speed, sensitivity and reliability, the speedy…

Q: What is a Bimetallic strip? Explain its function in Overload relay

A: The bimetallic strip is the device that work on the principle of thermal expansion. The thermal…

Q: Determine the minimum current for conductors required to connect a motor that has a full-load…

A: Given: Full load current of motor is 46 A. To determine the minimum current for conductors required…

Q: Q-2: What happen to speed of motor after loaded the motor-generator set with RL?

A: As we all know that speed of the motor depends on the load also

Q: Why not write a paper on the subject of relays and contactors?

A: Relays: It is an electrical device that works as an automatic switch and used to maintain contacts…

Q: 1-Can the (watt )regulator be used for higher speeds?

A: We are authorized to answer one question at a time since you have not mentioned which question you…

Q: Which is better Ac generator or Dc generator? both having same voltage output. Explain.

A:

Q: Discuss the following: i) Distance relay ii) differential relay iii) overcurrent relay

A: Given, Discuss :-    i) Distance relay                   ii) Differential Relay…

Q: Comparing electromagnetic relays to vacuum tubes, what were the advantages? What happened before…

A: Electromagnetic Relay: Electromagnetic relays are ones that use electromagnetic activity to work.…

Q: The relay mechansm depicted below has the following parameters : Agap0001 square meters, N-500 tuns,…

A: Reluctance of the air gap can be calculated as, Here, Rag is reluctance of air gap, Ag is cross…

Q: Q1: Describe the application of the following distance types of relay. (i) Definite-distance relay.…

A: “Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: The diagram below shows a 3-phase overload relay. How many sets of normally closed contacts does it…

A: The 3-phase overload relay diagram is shown below:

Q: Q1 / Answer the following questions 1 - what are the basic essential parts of an electrical…

A: Definition:  An electric generator is a device which converts mechanical energy from one source to…

Q: 12- An electromagnetic relay of attracted armature type has constants K1=0.4 and K2=10, the minimum…

A: Given value K2 = 10 K1 = 0.4

Q: O Discuss THREE (3) generations of protective relays.

A:

Q: Q1.complete the differential relay connections shown in the figure below to protect the power…

A: Given,The specifications of power transformer with Y/∆ connection-30MVA, 11.5/69 KVCT1=300/5

Q: hat the system is stable?

A: The transfer function is the ratio of output and input. It is calculated by Mason's gain formula.

Q: Open- and short-circuit test has been performed of a synchronous machine 45-kVA, three- phase,…

A: It is given that: V=220 Vf=50 HzKVA=45P=6 OC characterstics:VLL=220 V,If=2.84ASC…

Q: Which is better Relay or Contactor? and why? Give

A: Relay:  Relay comes under the category of switch. Relay is operate when there is opening and closing…

Q: When selecting conductors, from where is the motor full - load ampere rating to be taken

A: During the selection of the conductors, the motor full-load ampere rating is taken in the squirrel…

Q: Transient stability of the power system can be improved by using? O single Lines O Parallel

A: Transient stabilty  refers to the ability of power system to restore synchronism after large…

Q: 1. What is the meaning- of the term 'directional' vis a vis directional relaying?

A: Relays are electrically worked switch. Many relays utilize an electromagnet to precisely work a…

Q: Discuss the factors contributing to unsafe load. essay at least 30 words.

A: Load- In terms of electrical, the load is defined as the equipment or any other elements which are…

Q: Description : Q1: Describe the application of the following distance types of relay. CLO- 2(i)…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: Quèstion 21 Which of the following is the attribute of a good relay? O Speed Selectivity Reliability…

A: In this answer let us try to understand what a relay is and how a good relay is characterized by as…

Q: Explain three types of relays function Wise and their applications in power System protcation

A: Relays are used to monitor a circuit with a single signal having low power and to govern several…

Q: Write any four methods of voltage control and  Draw the basic block diagram of AC – DC transmission…

A:

Power Measurement

According to Blondel's theorem, the total power is measured with one less number of wattmeters than the number of wires present in the system. So, a single-phase and two-wire system will require one wattmeter and a single-phase and the three-wire system will require two wattmeters, and a three-phase and the three-wire system will also require two wattmeters and a three-phase and the four-wire system will require three wattmeter devices. The wattmeter is a device that measures power using one voltage and one current input as shown in the above figure. Multiple current or voltage input pair cables are used by many power analyzers and digital storage oscilloscopes (DSOs) for measuring watts, in effect within a single instrument acting as multiple wattmeters. It is possible to measure three-phase and four-wire power with one correctly specified power analyzer.