Refer to the circuit shown in Figure 14-6. Do the green indicator lamps indicate that the motor is actually running? If not, why?

Q: Does varying the motor field current Ip vary the motor speed n? O Yes O No Does varying the motor…

A: In this question we need to verify the given statement is true or false.

Q: 220-V, 4-pole shunt motor with 800 conductors wave-connected supplying a load of 8.2 kW by taking 45…

A:

Q: A shunt generator delivers 45 Amperes of current to a load at 220 volts at an efficiency of 86%. The…

A:

Q: All answers should be written in complete sentences. Calculations should be shown in detail, and…

A: FIND: which NEC table is used to determine the full

Q: (B)- Indicate whether the following statements are true or false and correct the false statements 1-…

A: Indicate whether the following statements are true or false and correct the false statements.

Q: 6. Refer to the circuit shown in Figure 14-6. Do the green indicator lamps indicate that the motor…

A: As shown in the figure, float switches switches controls the starting coil of motor. Motor starter…

Q: The rotor of a certain 20Hp,six-pole, 60HZ induction motor has

A: NOTE- “Since you have posted a question with multiple sub-parts, we will solve first three subparts…

Q: 34. Is the motor operating in high speed or low speed when it is connected in series delta? In…

A: For the given rated voltage: 1. In delta connection speed is more. 2. In star connection speed is…

Q: At standstill condition, the back emf is zero, so the motor can be safely turned ON without a…

A:

Q: what happened to the DC motor if it runs without any starter? Explain with diagram

A: DC motor is an electrical machine which Electrical current into mechanical energy. It works on the…

Q: If generator armature current is 2A, the motor armature current is 3A, Voltage is 240V,motor…

A: Generator current Ig = 2A Motor current Im = 3A Voltage V=240V Motor Armature resistance Ra= 4 ohm…

Q: 4. Refer to the circuit in Figure 14-5. What is the purpose of control relay CR in this circuit?

A: As can observe from the figure, relay CR is provided in buzzer circuit . Buzzer is connected to…

Q: An 8 pole, 250 V, wave-wound generator has 400 conductors. If the generator is to be lap-wound, the…

A: Given a generator having, Number of poles, P = 8 Wave wound with 400 conductors.

Q: Your Answers may be presented through Discussions, Drawings/Figures/Diagrams, Reference to NEC/PEC…

A: Induction motor working Principle When an ac supply is connected to a stator it creates a rotating…

Q: The armature of a 4-pole, 128 slots shunt generator is lap wound with four conductors per slot. The…

A: According to our rules we will answer only the first three parts of the question .If you want…

Q: 1. Which NEC table is used to determine the full-load current of a torque motor?

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

Q: the operation of the pull-in and hold on windings in a pre-engaged starter solenoid

A: The pre-engaged starter solenoid basically consists of two windings- the pull-in winding of…

Q: If both the forward and reverse contactors for a motor engage at the same time, what will happen to…

A: In this question we need to discuss what happen when both the forward and reverse contactors for a…

Q: Figure 1 Figure 2 Figure 3

A: DC machines (Generator/ Motor) are the important parts of electrical drives. These machines are used…

Q: What is the function of an arc chute

A: function of an arc chute

Q: Define or state the principle of operation, draw the wiring diagram, discuss the construction and…

A: Motor- It is a device which convert electrical energy into mechanical energy and for the various…

Q: Incorrect Question 21 When an electrical load is connected to a DC generator, current flows None of…

A:

Q: A DC shunt motor is connected to a three-point starter. What would happen if (i) the starter handle…

A: (i) The armature current of the DC machine is meant to grow slowly as the machine slowly builds…

Q: An 8-pole, 600 rpm dc shunt with 778 wave connected armature conductors of 12.5 ohms resistance at a…

A: The solution can be achieved as follows.

Q: 4. Referring to Figure 12-14, assume that the normally open 2M contact located between wire numbers…

A: What would happen if normally open contact 2M between 23 and 29 is welded closed and  a) The number…

Q: Completely solve and box/highlight/bold the final answers. WRITE LEGIBLY OR TYPEWRITE THE SOLUTIONS.…

A:

Q: List the probable causes if the armature dos notable release after the magnetic starter is de -…

A: Upon de-energizing the magnetic starter, the armature should release.

Q: What happened to the dc if it runs without any starter?

A: What happened to the dc if it runs without any starter?

Q: If generator armature current is 2A, the motor armature current is 3A, Voltage is 240 V, motor…

A: Generator and motor armature current are given.  Armature resistance of both machine given.  Ig =…

Q: you are working as a plant electrician. you are told that a large DC motor was returned from the…

A: This case comes in differential compound motor. In this type of motor the current flows through the…

Q: Q18 Complete the answer : The DC................... motor is start by using the two point starter.

A: Given :    Motor is a device which is used to convert the electrical energy into the mechanical…

Q: D.a- A knocking sound that's coming from a pump is normally caused by A. a faulty coupling. B. a…

A: Cavitation : cavitation is the formation of bubbles and cavities in liquid, developed in areas of…

Q: Refer to the circuit shown in Figure 13-7. Assume that the motor is running and an overload occurs…

A: From given we can see that the overload contact is connected between the motor  and motor starter…

Q: How to avoid the effect of the high current at starting of the Motor? a. variable resistor is…

A: The induction motor takes a very high starting current so it is required to minimize the starting…

Q: The starter must never operate for more than sixty seconds at a time and should rest for two minutes…

A: The starter must never operate for more than sixty seconds at a time and should rest for two minutes…

Q: The armature of a 4 pole shunt generator is lap wound and generates 216 volts when running at 600…

A:

Q: Worn armature bearing can result in higher than normal starter cranking current draw ? True or false

A: The above statement is true.

Q: (B)- Indicate whether the following statements are true or false and correct the false statements 1-…

A: In this question we need to verify the given statement is true or false

Q: If the full load current of a three-phase motor is 40 Amperes, the size of the circuit breaker is a.…

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

Q: what advantage is there in using combination starters?

A: The advantages of using combination starters are given below:   The starter can be operated in the…

Q: Two shunt generators with an armature resistance and field resistance of 0.022 and 402,…

A: In this question we need to find a terminal voltage of two parallel operating shunt generator.

Q: What happens when the 6. holding coil gets the supply in the magnetic controller?

A: Holding coil is nothing but a separate relay coil is energized by contacts that close when a relay…

Q: 2. Which NEC table is used to determine the full-load current of a torque motor?

A: In this question we will find Which NEC table is used to determine the full-load current of a torque…

Q: Determine the following based on the wiring diagram illustrated in figure 8 on worksheet 5 if it is…

A: From the figure, we see that there are six phase groups and each has three coils in per phase group.…

Q: 17. When starting winding, normal locked rotor current? a motor draws approximately what percentage…

A: In this question we will write motor current when starting on one winding..