What are the main reasons and affect if the Main Contactor Energizes but Motor Does Not Start.

Q: Which of the following is a safety device in a motor control circuit. Select one: a. selector switch…

A: In the motor control  circuit , motor contactor is used  to switch the current at the time of…

Q: What is the purpose of the magnetic contactor?

A: Magnetic contactors are available in the electrical powered motors in the form of electrical relay.

Q: what are designed to protect the motor from an overload condition

A: Overload motor: A motor is connected with excessive load, draws more current, and produces…

Q: What is a starte

A: A motor is an electromechanical device which is used to convert the electrical power into mechanical…

Q: What are the different types of switch mode power supply?

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Q: Q2/Clearly identify which of the following items are rotating and which of them are stationary. (1)…

A: (1) Commutator segments is a rotating part. Commutator convertes  alternating emf to DC . Commutator…

Q: A step up chopper has an input of 200 volts and output of 250 volts. The blocking period is each…

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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: Q2 ) I. What is the effect of changing the sequence of phases in the electric feeder (single phase,…

A: According to Bartleby guidelines we are supposed to answer only one question of they are not…

Q: 19. i. Draw the block diagram of a solar Photo-Voltaic system with the stand by diesel generator and…

A: There are different sources and types of energy present. They can be renewable and non-renewable…

Q: how the solder pot thermal overload unit operates during an overload situation?

A: we need to answer how the solder pot thermal overload unit operates during an overload situation.

Q: Explain what is the Wiring Diagram of Direct On Line Starter based on your understanding.

A: DOL starter- A DOL starter (direct on line) is the standard method of starting a small single or…

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: What happened if the DC voltage in the clamping circuit is replaced by source?

A: A Clamper circuit is a circuit with an AC input source, a capacitor and a DC reference voltage. The…

Q: How can you reduce the amount of voltage applied to the motor during inching?

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Q: When overload contacts are connected into a control circuit, are they connected in series with the…

A: Accoeding to question we have to discuss about when overload contacts are connected into a control…

Q: Explain all part and its working in motion control lamp diagram

A: One can use motion sensors to automatically turn on a light when someone approaches in home. In this…

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

A: Choose the correct option At standstill condition, the back emf is zero, so the motor can be safely…

Q: Explain how does the current will be reduced during the starting of the motor.

A: According to question we have to explain, how does the current will be reduced during the starting…

Q: 2. What are the different types of Starters to control AC-Motor. Explain briefly. 3.

A: In this question we will write the types of starters to control AC motors..

Q: What provides motor running overcurrent protection for the dryer

A: The dryer's motor has an integral thermal overload safety in compliance with NEC 422.11(G) which…

Q: Explain how a direct online (DOL) magnetic starter works with diagrams and pictures

A: We are asked to explain direct online (DOL) magnetic starter.

Q: Why there is a need to study Electrical skill problems?

A: Electrical skiil

Q: Explain the validity and suitability of the electrical safety components Emergency Stop Switches.…

A: Emergency Stop Switches:- A fail-safe control is an E-stop switch, often known as an emergency stop…

Q: 10hp single-phase motor is connected to 240 volts. the motor nameplate indicates a NEMA Code B, a…

A: Refer to the NEC section (430.22 (A)), it suggest that the conductor connected to single phase motor…

Q: Explain the difference between manual motor starters that provide low voltage release and those that…

A: The difference between the manual motor starters mainly depends upon the mode of Starting. Thev…

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: Explain the working of induction cup relay with the help of diagram.Explain all the parts in detail…

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Q: If one of the magnetic overload relays opens its contact, how can it be reset?

A: According to question we have to discuss about,  If one of the magnetic overload relays opens its…

Q: how is the size of the overload heaters selected for a particular installation?

A: The size of the overload heaters are selected for a particular installation is doing in mainly two…

Q: list the probable causes if the armature does not release after the magnetic starter is…

A: For the control of 3-phase motors, the magnetic starter allows separation of the control circuit…

Q: Explain how a shading coil prevent an ac contactor from chattering

A: A shading coil is a single or a few turn of electrical conductor located in the face of the magnet…

Q: Can I use the Manual Motor Starter on a single phase motor? Why?

A: MANUAL MOTOR STARTER Manual motor starters are devices that use manual or automatic switches to…

Q: Differentiate the sizes of manual starters

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Q: What is the common term for the sudden flow of current to an incandescent bulb or motor

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Q: Direct current is used in which of the following applications in the industry?

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Q: . When you're first starting a PM program, and you want to check motor starter and contactor…

A: Preventive Maintenance program to check motor starter and contactor contacts

Q: overload heater element

A: If an overload heater element is not installed in a two-pole manual starter then the Motor will not…

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: Explain how DOL magnetic starter works step by step with diagram and pictures.

A: The DOL method which is also known as the Direct On Line starting method, It is started with rated…