To construct Step-down transformer Physical quantity Measured value Primary coil turns Secondary coil turns Load Resistance

Q: Whether a transformer shifts an ac waveform by 0° or 180° depends on the phasing of the waveform…

A: Shifts of ac waveform by 0 to 180 degree is depending on

Q: The percentage regulation of an ideal transformer is: O Zero O 50 O 100 O 10

A: In the secondary winding of the ideal transformer, there will be no voltage drop as there is no…

Q: e following problem must be solved analytically, without the use of mathematical formulas or…

A: Given data, Cross sectional area A=5 cm2 =5×10-4 m2 Flux density B=108 T RMS voltage V = 120 V…

Q: In step down transformer, secondary turns are less than primary turns. Select one: O True O False

A:

Q: With a turns ratio of 12 to 1 and an input voltage of 240V and output 12V, propose a system of…

A: The solution is given below

Q: A transformer has a rated output of 300 kVA at a power factor of 1.2. Determine the rated power…

A: Please comment if you need any clarification. If you find my answer useful please put thumbs up.…

Q: What are components of transformer

A: Solution: A transformer is a device ,which uses electro magnetic induction to transfer  energy from…

Q: Problem: For the given circuit as shown in figure a) Find the equivalent reactance b) Draw the…

A: Solution !!

Q: transformer is called single winding transformer. O Three phase O Auto O 1:1 O Isolation

A: Correct option is auto transformer that is 2nd option is correct

Q: A 400/200 V, single-phase transformer has primary winding resistance of 0.20 and secondary winding…

A: Given a 400/200 V, single phase transformer has, Primary winding resistance, R1=0.2 Ω. Secondary…

Q: I will upvote for correct answer A transformer has a rated output of 300 kVA at a power factor of…

A:

Q: Primary of Current Transformer is having large number of turns. Select one: O True False

A: A current transformer is used in the power system to measure current in the transmission line.

Q: What would happen if primary and secondary of transformer are connected to sources of different…

A: Transformer is used to transfer electrical energy from primary winding to secondary winding.…

Q: A single-phase 800 V/100 V, 50 H transformer has a core maximum density of 1.8 Wb/m² and an effe…

A:

Q: Draw the construction diagram of the core type transformer

A: In core type transformer both the primary and the secondary windings are placed on the side limbs…

Q: TRUE or FALSE: In a step-up transformer, the winding used in the primary has a smaller…

A: KVA rating of primary and secondary current are same .  High voltage winding implies Higher voltage…

Q: In your own understanding what do you understand by step down transformer

A: Electrical machines can be either generator or motors. They can be either Ac machines or DC…

Q: The correct choice on working principle of Transformer is based on a. Mutual Induction b. Different…

A: In this question , we have to write about transformer working principle..

Q: Volt ac voltage is applied to the primary input of a transformer. A load of B ohms at the output it…

A:

Q: In transformer, the eddy current loss can be minimized by using thin size copper conductors using…

A: Transformer have 2 types losses  In the question the eddy current losses can be minimised by???

Q: In transformer, the eddy current loss depends on both frequency and flux density load current only…

A: The circulating current produced in the body of the magnetic material when it is subjected to an…

Q: The step up transformer has transformation ratio less than 1 Select one: O True False

A: The transformation ratio is defined as the ratio of secondary voltage to primary voltage. It is…

Q: To prevent the harmful voltage induction by the series winding, the transformer primary must before…

A: To prevent the harmful voltage induction by the series winding, the transformer primary side must…

Q: What type of transformer did you build where the secondary voltage is lower than the rimary voltage?…

A:

Q: I= 3.8 A, and Ra= 5.6 Ω; Rb= 4.9 Ω; and Rc= 20.2 Ω Calculate the equivalent Norton resistance, RN,…

A:

Q: In no load Phasor diagram of practical transformer, the core loss current Ic is with primary voltage…

A: When a transformer is on no-load, the secondary is open circuited. Hence secondary current is zero.…

Q: 1. An ideal transformer with a 450 turn primary connected to a 600 V, 60 Hz supply line needs to…

A: Number of turns in primary N1=450. Primary voltage V1=600 V. Secondary voltage V2=240 V. Load…

Q: i.The turn's ratio of a Step-Down Transformer is 220/110. Identify the ratio of voltage in the…

A:

Q: Ideal transformer core has permeability equal to Select one a Non-zero finite c. Negative G Intinite

A: Ideal transformer core has permeability equal to

Q: The table below shows some performance parameters of a certain power transformer. Full-load voltage…

A: The voltage regulator is required to maintain voltages within the permitted range that the…

Q: With the aid of simple sketches explain briefly the meaning of transformer polarity and terminal…

A: Given: Explain briefly the meaning of transformer polarity and terminal marking.

Q: The magnetizing equivalent circuit of transformer can be found by open circuit test O True O False

A: Given: Transformer: Transformer is a static device used for the transfer of voltage and current from…

Q: A Transformer having 259 V in the primary with a primary current of 14 A. For a secondary Voltage of…

A: In this question , we will find transformer secondary current with given data...

Q: Which of the following quantities is increase in a step-down transformer? O Current O Voltage O…

A: As per the definition, the transformer is a device that can convert one voltage level to another…

Q: A transformer has a rated output of 400 kVA at a power factor of 0.6. Determine the rated power…

A: Rated output (S) = 300 kVA Power factor (ϕ) = 0.6 We have to find the rated power output and the…

Q: The main difference between the step-up and step-down transformer is?

A: Transformer It is a device that either raises or lowers the voltage as it distributes electrical…

Q: The no-load current in the transformer lags behind the applied voltage by phase angle about *

A: The current lags the no load voltage with phase angle about 75o.

Protection System

A system that protects electrical systems from faults by isolating the problematic part from the remainder of the system, preventing power from being cut from healthy elements, improving system dependability and efficiency is the protection system. Protection devices are the equipment that are utilized to implement the protection system.

Predictive Maintenance System

Predictive maintenance technologies are designed to assist in determining the state of in-service equipment so that maintenance can be scheduled. Predictive maintenance is the application of information; proactive maintenance approaches examine the condition of equipment and anticipate when it should maintain. The purpose of predictive maintenance is to forecast when equipment will fail (depending on a variety of parameters), then prevent the failure through routine and corrective maintenance.Condition monitoring is the continual monitoring of machines during process conditions to maintain optimal machine use, which is necessary for predictive maintenance. There are three types of condition monitoring: online, periodic, and remote. Finally, remote condition monitoring allows the equipment observed from a small place and data supplied for analysis.

Preventive Maintenance System

To maintain the equipment and materials on a regular basis in order to maintain those running conditions and reduce unnecessary shutdowns due to unexpected equipment failure is called Preventive Maintenance (PM).