5. How are larger control transformers supplying a motor control center usually cooled?

Q: i need the answer quickly

A:

Q: Given a 25 hp, three-phase, 230-volt, squirrel cage induction motor. The ambient temperature of the…

A: Given a 25 hp, three-phase, 230 Volts, squirrel cage induction motor. The ambient temperature of the…

Q: What is the difference bewteen a grounded control system And a floating control system?

A: A normal transformer consists of a primary and a secondary winding. But, a control transformer is…

Q: A 4-pole, 3-phase synchronous machine has 48 slots. Calculate the armature winding distribution…

A: The solution is given below

Q: what device is generally used to disconnect the start windings of a split phase motor for open type…

A: In this question we need to answer which device is generally used to disconnect the start windings…

Q: What are typical uses for control relays

A: Relays are sensing devices in nature. Control relays enable a low current circuit to control a high…

Q: Elimination of armature reaction requires a series field winding True False

A: Answer is True    Interpoles are similar to the main field poles and located on the yoke between the…

Q: 4. What is the difference between the reverse power relay and the direction relay?

A: The difference between reverse power relay and the directional relay is

Q: In developing line over wiring diagrams in which lines should the overload relays be placed for…

A: The line diagram for three-phase motor starters is shown below:

Q: what is the laddered circuit of forward-reversed motor control?

A: Ladder diagrams are schematics used to describe industrial control logical systems. Since they…

Q: 14-Which is the most effective and currently used method in asynchronous motor speed control…

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

Q: Explain all the types of distance protection relays?

A:

Q: What are some of the protective relays found with large transformers?

A: Protective relay is used for detection of fault in electrical devices and give signal to circuit…

Q: What determines when a synchronour motor is at normal excitation?

A:

Q: 16. What voltage may be applied to 230/460- volt motor if used with a part winding? Why?

A: What voltage may be applied to 230/460V motor if used with s part winding? Why?

Q: What will happen if the back emf drops to zero because the external mechanical load stops the…

A: Back EMF is the generated when the motor is under running condition. If N=0, the back emf will also…

Q: For the Starting Up the Power Station Simulator Why are certain operations blocked by isolators

A:

Q: 1. In DC series generator field winding and armature winding are connected parallelly. Select one:…

A: Field winding is used to produce the required flux in self excited motors.

Q: Tell what is rise time, peak time and delay time in the control system?

A: Rise time: Rise time is defined as the time taken by the response of the system to reach at the…

Q: Which are the Methods for Synchronous Control?

A: Synchronous Control: It is a LED screen control system that the picture showing on the LED screen…

Q: 5. Explain the used of Drum Switches? Draw the 6 point , 8 point and 9 point drum switches? 6. How…

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

Q: While discussing armature testing: Technician A says to test for shorts, place the ohmmeter leads on…

A:

Q: Why do large induction motors sometimes cause a dip in the supply system voltage when they are…

A: The reasons for the Voltage sag or Dip in the Voltage : 1.The Large Induction motors usually draws 6…

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: What is the work of the Automatic transmission control system?

A:

Q: What safely feature does the conbination starter provide that individual motor starting assemblies…

A: The combination starter consists of an across-the-line starter and a disconnect switch. It has a…

Q: n developing line or wiring diagrams in which lines should the overload relays be placed for three…

A: Developing line or wiring diagrams are used to show the circuit in a simplified way.

Q: The no load voltage of a 50 kW, 220 volts shunt generator in CIT Laboratory is 232 volts and rated…

A:

Q: Draw a schematic diagram circuit for 460V Squirrel-type Induction motor 60 hertz, 150hp is to be…

A: Introduction -  An induction motor is an adjustable speed motor that is utilized for a variety of…

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

A: The solution is given below

Q: What is the fundamental requirements of protective relay?

A: The protective relay is a device which is used to operate the circuit breaker under any fault…

Q: the inter pole winding is connected in parallel to field windings true or false?

A: Interpol winding is counterbalanced the armature reaction due to the flow of current in the armature…

Q: What do you mean by stray load loss of an alternator?

A: Stray load losses of Alternator :– These are losses caused by the load current due to changes in…

Q: 7-The is made up of insulated 8- The Vo is adjusted by adding, This increase slope of this line…

A:

Q: short shunt DC generator, Shunt winding is parallel with the Series filed winding and Armature…

A: In this we will write about short shunt generator...

Q: Brief about DC motor control using L298N module, and write a code to drive the DC motor using L298N…

A: DC motor control using L298N: It is a 15-pin motor driven IC. It is high current and high voltage IC…

Q: Explain No load test or rotational loss test and Blocked rotor test.

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

Q: 7-The is made up of insulated 8- The Vo is adjusted by adding This increase slope of this line…

A: As per Bartleby guidelines we are allowed to solve only three subparts, please ask the rest again.

Q: Differentiate the used of Stepper motor over Servo Motor as applied for DC Source.

A: A stepper motor is to boot a digitally stepped motor, it takes a sequence of pulses to form it take…

Q: Explain the working principle of a relay?

A: Relay works on the principle of electromagnetic induction. When the electromagnet is applied with…

Q: Question 1: Why is the voltage decresed at no-load operation? What is that voltage called? Question…

A: It depends on the circuit. If it has a constant voltage source, that voltage will remain constant ,…

Q: How should the armature be laminated for the purpose ? (DC GENERATOR QUESTION)

A:

Q: number of turns per phase?  alternator induced voltage is?  armature winding distrbution factor?…

A: Hello. Since your question has multiple sub-parts, we will solve first three sub-parts for you. If…

Q: 3- Draw the circuit diagram of static excitation system for synchr generator?

A: Excitation system is essential for the operation of synchronous generators since they provide the…

Q: What is synchro? Explain how it is controlled with respect to control system

A: Synchro is a type of electrical transducer which transforms the angular position of the shaft to…

Q: What are the differences between a transformer differential relay and a line differential relay?…

A:

Three-Phase Transformers

Three-segment transformers are a type of transformer used to transform voltages of electrical systems into three ranges. Two type transformers are shell-type transformer and core type transformer. In brief, it could be described because of the exquisite kinds of configurations.

Transformer

Ever since electricity has been created, people have started using it in its entirety. We see many types of Transformers in the neighborhoods. Some are smaller in size and some are very large. They are used according to their requirements. Many of us have seen the electrical transformer but they do not know what work they are engaged in.