A 400-MVA, 240-kV/24-KV, three-phase Y-A transformer has an equivalent series impedance of 1.2 + j6 per phase referred to the high-voltage side. The transformer is supplying a three-phase load of 400 MVA, 0.8 power factor lagging at a terminal voltage of 24 kV (line to line) on its low- voltage side. The primary is supplied from a feeder with an impedance of 0.6 + j1.2 per phase. Determine the line-to-line voltage at the high-voltage terminals of the transformer and the sending-end of the feeder

Q: A current transformer has 15 turn on the primary and 75 turn on the secondary. The relay burden is…

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

Q: ) Which of the following statement is true about Current Transformer? a. The current in the…

A: Current transformer is used to measure high current.

Q: Why transformer rated in KVA ?

A: Transformers are a type of energy converter that move power from one side of a circuit to another…

Q: Assertion (A): The regulation of the good transformer should be less than 3 percent. Reason (R):…

A: Voltage regulation of transformer

Q: Briefly describe the major difference between HEC and CLP regarding the connection from the…

A: The power system has to transmit power from the generation side to the load side. For this purpose,…

Q: How do the auto-transformer on no-load and the unioaded voltage divider behave in relationship to…

A: It is asked how an auto-transformer on no-load and an unloaded voltage divider behave in…

Q: Clear print on the keyboard and correct or dislike  In regards to the model of a real transformer,…

A: Transformer is an ac static electrical device that transfers electrical energy from one electrical…

Q: 2. What is unique about the High Voltage Test Transformer?

A:

Q: Find whether the given statements are true or false, and do justify the following statementWhen we…

A: The statement that "when we draw the phasor diagram of the transformer, we don't consider the change…

Q: what are the advantages and disadvantages of single phase dry-type power transformer when used with…

A: Single-phase dry-type power transformer: Dry-type transformer never uses insulating liquid (which is…

Q: Draw and explain the scheme illustrating the principle of a transformer voltage U2 regulation…

A: OLTC (On-load tap changer transformer): The tap changer is a device that is tied to the power…

Q: Question 1 I need the answer to be supported by a diagram or an equation 1. What is the purpose of…

A: 1.The purpose of lamination the core of the transformer is to reduce the Eddy current losses in the…

Q: dentify the test used to measure the copper losses of the transformer. With necessary diagram…

A: For finding the copper losses of transformer we do short circuit test as explain below in step 2

Q: A load test for a transformer is run primarily to determine its A. efficiency. B. copper loss. C.…

A: A load test for a transformer is run primarily to determine what

Q: Identify statement below if its true or false. Statement I.Rotor frequency is independent of slip.…

A: To provide true or false statements from given

Q: In No-Load test circuit of single-phase transformer input power is equal to? In short circuit test…

A: In this question,  We need to define the input power in case of open circuit test and short circuit…

Q: With the basic circuit diagram, explain the restricted earth fault relay for a transformer.

A:

Q: Which one of the following component is the heart of the excitation system?. a. Resistor B. Voltage…

A: Voltage controllers situated in the substation or on a feeder are utilized to keep the voltage…

Q: Name three types of transformer and brief about each.

A: 1. Step Up Transformer and Step Down Transformer: Generally these Step up and step down transformers…

Q: 15/. A transformer of 1000 V/240 V has 500 turns on secondary winding, the number of turns in…

A: Given Transformer of 1000v/240v Means Primary Voltage, V1= 1000V Secondary Voltage, V2= 240v…

Q: Ⓒ A transformer with 200 turns on the Primary winding is to be wound to step the voltage down from…

A: In this question, we need to determine the number of turns of secondary side. We know, in…

Q: What are the objectives of implementing a short circuit test on a single phase transformer?

A: Given  What are the objectives of implementing a short circuit test on a single phase transformer

Q: What is the reason behind the humming sound of the transformer explain.

A: Humming sound in transformer

Q: Determine the transformer equivalent circuit parameters.

A:

Q: )A. Draw approximate transformer model into all quantities of a secondary referred to primary.…

A: Transformer model  Equivalent transformer circuit diagram:-  Secondary referred to primary side

Q: Is AC Adapter a transformer? Yes or no? If yes, what is the usual voltage rating?

A: Question : Is AC Adapter a transformer? Yes or no? If yes, what is the usual voltage rating?…

Q: 10. Excitation losses in a transformer must be determined. When running the test, you should make…

A:

Q: ➤ 4. Why the voltage transformer is absolutely not allowed to short circuit on the secondary side of…

A: it is asked why there should not be any short circuit on secondary side  of operation on transformer…

Q: In a transformer if the primary current is less than secondary current, then the type of transformer…

A: Transformer- It transfers electrical energy from one circuit to another through the process of…

Q: Draw the schematic diagram of Potential Transformer and label the parts. Also mention the range of…

A:

Q: To remove zero sequence current in power system, one sides of the transformer is connected in…

A: Zero sequence currents flow in phases but not in lines

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

A:

Q: 1. Explain how a fuse saving scheme is performed using a recloser. ii. What is a sectionalizer and…

A: Note: Since you have not specified any question to be answered, as per our honor code, we are…

Q: Which transformer is used for welding application? Explain the operation in detail with diagram.

A: Need to find which transformer is used for welding application

Q: 5.a. The aging of transformer insulation A. increases as the temperature increases. B. does not…

A: Simple problem on machines subject. Look below for the solution.

Q: DETERMINE IF THE STATEMENT/IMAGE IS FOR : DELTA- DELTA or WYE- WYE (follow the writing and spelling…

A: Transformer connection Three forms of connection are possible in three-phase transformer windings.…

Q: The Generator transformer is Select one: a. One-one transformers b. Step-up transformers c.…

A:

Q: Calculate the operation time of an overcurrent relay of (10 A , 3 seconds) that has a current…

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.