Why transformer works on AC?

Which transformer works on DC?
Answer : A transformer cannot work on direct current (DC). Transformers rely on the principle of electromagnetic induction, which requires a changing magnetic field to induce voltage in the secondary coil. For this ... . In short, transformers are designed to work with alternating current (AC), not DC....

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How works a transformer?

How works a transformer?
Answer : A transformer is a device that changes the voltage of electrical energy. It works on the principle of **electromagnetic induction**. Here's how it works in simple terms: ### 1. **Basic ... , creates a changing magnetic field, and then uses that field to change the voltage for practical use....

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A motor has to exert power starting from zero and rising uniformly to 150 HP in 8 mins after which it works at constant power of 100 HP for 5 mins. The motor remains on no load for next 5 mins. The cycle again starts and repeats indefinitely. Determine suitable size of motor.

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Does induction motor works on DC?

Does induction motor works on DC?
Answer : No, an induction motor does not work on DC (Direct Current). It works on **AC (Alternating Current)**. Here's why: - An **induction motor** operates by creating a rotating magnetic field ... induced current in the rotor to generate motion. In summary, induction motors are designed for AC, not DC....

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What works on the principle of self induction?

What works on the principle of self induction?
Answer : Self-induction is a phenomenon in which a changing current in a coil induces an electromotive force (EMF) or voltage in the same coil. This occurs because the current flowing through a coil generates ... is integral to the operation of systems that need to regulate or control the flow of current....

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Which is the principle on which the bimetallic strip works?

Which is the principle on which the bimetallic strip works?
Answer : The **principle on which a bimetallic strip works** is based on the difference in the **thermal expansion rates** of two different metals that are bonded together. Here's a more ... differential thermal expansion** of two metals, which causes it to bend when exposed to temperature variations....

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What principle works on DC motor?

What principle works on DC motor?
Answer : A **DC motor** works based on the principle of **electromagnetic induction**. More specifically, it operates according to **Faraday's Law of Induction** and **Lorentz Force**. Here' ... DC power source) into mechanical energy (rotation) using the interaction of electric current and magnetic fields....

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On which principle half wave rectifier works?

On which principle half wave rectifier works?
Answer : A half-wave rectifier works on the principle of **diode conduction**. Specifically, it relies on the fact that a **diode only allows current to flow in one direction**-from its anode to its cathode-and ... is passed through, and the negative half is "cut off," leading to a **pulsating DC output**....

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Why transformer is used only for AC not DC?

Why transformer is used only for AC not DC?
Answer : Transformers are used only for AC (Alternating Current) and not for DC (Direct Current) because of how they operate. A transformer works on the principle of electromagnetic induction. It needs a changing ... field, so no voltage is induced in the secondary coil, and the transformer can't work....

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What is the impact of frequency on transformer design?

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What will happen if DC supply is given on the primary of a transformer?

What will happen if DC supply is given on the primary of a transformer?
Answer : If a DC supply is applied to the primary of a transformer, several things happen: 1. **No Induced Voltage in Secondary**: A transformer works on the principle of electromagnetic ... voltage in the secondary, core saturation, and potentially damaging the transformer due to excessive current....

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Comment on the working principle of operation of a single-phase transformer.

Comment on the working principle of operation of a single-phase transformer.
Answer : A single-phase transformer works on the principle of **electromagnetic induction**. Essentially, it transfers electrical energy from one circuit to another, either to step up or step down the voltage ... on the coil windings. This is the basic working principle of a single-phase transformer....

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What are the losses in a transformer on what factors do they depend how they are minimized?

What are the losses in a transformer on what factors do they depend how they are minimized?
Answer : Transformers are crucial components in electrical systems, but like any electrical equipment, they experience some losses during operation. These losses mainly occur due to the inherent properties ... can design more efficient transformers, saving energy and reducing heat generation in the system....

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What does loss in transformer depend on?

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Explain the effects of harmonics on the transformer.

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A 500kVA distribution transformer having copper and iron losses of 5kW and 3kW respectively on full load. The transformer is loaded as shown below: Loading (kW) Power Factor (Lag) No. of hours 400 0.8 06 300 0.75 12 100 0.8 03 No load - 03 Calculate the all-day efficiency.
Answer : To calculate the all-day efficiency of the transformer, we need to consider the total energy output, the total energy input, and the losses over a 24-hour period. The transformer experiences two types of ... \] ### Final Answer: The all-day efficiency of the transformer is approximately **98.39%**....

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Draw a neat experimental setup to conduct OC test on a single-phase transformer.

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Compare core type and shell type transformer on any four parameters.

Compare core type and shell type transformer on any four parameters.
Answer : Core type and shell type transformers differ in their construction and design. Here's a comparison based on four key parameters: ### 1. **Core Construction:** - **Core Type Transformer** ... advantages, and the choice depends on factors like size, strength, and cost for a given application....

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Draw a circuit diagram for polarity test on a single-phase transformer.

Draw a circuit diagram for polarity test on a single-phase transformer.
Answer : To perform a polarity test on a single-phase transformer, you would typically use a simple circuit setup where you compare the voltages from the primary and secondary windings of the ... and secondary windings are in the correct polarity, meaning the correct phase relationship between them....

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Identify energy conservation opportunities in transformer based on material technology.

Identify energy conservation opportunities in transformer based on material technology.
Answer : When considering energy conservation in transformers, material technology plays a crucial role in improving efficiency, reducing losses, and extending the lifespan of the equipment. Here are ... research into new materials progresses, even greater improvements in energy conservation are expected....

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A three-phase transformer having a line voltage ratio of 0.4 kV/11kV is connected Star/Delta and protective transformers on the 0.4 kV side have a current ratio of 500/5. Calculate the ratio of the protective transformers on the 11 kV side. Draw a neat circuit diagram and indicate the given values at appropriate places.

A three-phase transformer having a line voltage ratio of 0.4 kV/11kV is connected Star/Delta and protective transformers on the 0.4 kV side have a current ratio of 500/5. Calculate the ratio of ... on the 11 kV side. Draw a neat circuit diagram and indicate the given values at appropriate places.

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A 220V/22kV three-phase transformer is connected in star/delta. The protective transformers on the 220V side have a current ratio of 400/5. Calculate the CT ratio on the 22kV side.

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Explain the relation of V2 and I2 based on the load connected to the transformer.

Explain the relation of V2 and I2 based on the load connected to the transformer.
Answer : The relationship between the secondary voltage (\(V_2\)) and the secondary current (\(I_2\)) of a transformer depends on the nature of the load connected to the transformer's secondary side. Let's break ... on the turns ratio, while the current \(I_2\) depends on the type and magnitude of the load....

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Explain the tests on a single-phase transformer and develop an equivalent circuit from the above tests.

Explain the tests on a single-phase transformer and develop an equivalent circuit from the above tests.
Answer : To evaluate the performance and characteristics of a **single-phase transformer**, two standard tests are commonly performed: --- ### 1. **Open Circuit (OC) Test** - Determines Core (Iron) Losses and ... } \). --- Would you like a diagram of this equivalent circuit to visualize it more clearly?...

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A plant consists of two 10 MVA generators of reactance 18% each and two 5 MVA generators of 12% each. All are connected to bus bar to supply a load through three step up transformers of 8 MVA each having reactance of 8%. Determine fault MVA on HV side of any one transformer.
Answer : To determine the fault MVA on the high-voltage (HV) side of any one transformer, we need to first calculate the total reactance of the system (the combined reactance of all generators and transformers) and then ... Thus, the fault MVA on the high-voltage side of any one transformer is **8.77 MVA**....

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Can a transformer work on DC?

Can a transformer work on DC?
Answer : No, a transformer cannot work on DC (Direct Current). Transformers rely on **alternating current (AC)** to function. Here's why: 1. **Principle of Operation**: A transformer works on the ... to work, you need alternating current (AC). DC won't allow the transformer to operate as intended....

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How tube light circuit is connected and how it works?

How tube light circuit is connected and how it works?
Answer : A tube light circuit is quite simple and consists of a few key components: the **tube light** itself, a **starter**, a **choke (ballast)**, and a **power supply**. Let's break down how the ... the light. Once the lamp is on, it continues to glow with the help of the phosphor coating inside the tube....

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How oscilloscope works step by step?

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How Arduino works?

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What Arduino works?

What Arduino works?
Answer : Alright! Let's explain this properly so **everyone**, even a beginner, can understand it: --- ### What is Arduino? **Arduino** is an **open-source electronics platform** based on **easy-to-use ... diagram) showing how Arduino connects to a light bulb or a sensor? I can create one if you want!...

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What is DC motor and how it works pdf?

What is DC motor and how it works pdf?
Answer : I can create a PDF explaining what a DC motor is and how it works. I'll provide a simple explanation here and then convert it into a PDF for you. ### DC Motor: Overview and ... it using the link below: [Download DC Motor Working Principle PDF](sandbox:/mnt/data/DC_Motor_Working_Principle.pdf)...

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How does a induction motor works?

How does a induction motor works?
Answer : An induction motor works on the principle of electromagnetic induction, where electrical energy is converted into mechanical energy. Here's a simple explanation of how it works: ### Basic Parts: 1. ** ... , which induces a current in the rotor, causing it to rotate due to the magnetic interaction....

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Is transformer in AC or DC?

Is transformer in AC or DC?
Answer : A **transformer** works **only with alternating current (AC)** - not direct current (DC). Here's a detailed explanation that covers the why and how, in a way that's easy to understand: --- ... --- Would you like a simple diagram showing how AC creates a changing magnetic field while DC does not?...

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Is electronic transformer AC or DC?

Is electronic transformer AC or DC?
Answer : An electronic transformer typically works with **AC (alternating current)**. Transformers, including electronic ones, rely on the principle of electromagnetic induction, which requires alternating current to create a ... -voltage AC (like 12V or 24V) for use in devices like halogen lamps or LEDs....

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Is A transformer AC or DC?

Is A transformer AC or DC?
Answer : A transformer works **only with AC (Alternating Current)** - **not with DC (Direct Current)**. Here's a simple way to understand it: - A transformer needs a **changing magnetic field** to work. ... **why DC can even damage a transformer** if applied? It's an important point for students to know! ...

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What is the difference between an AC and DC transformer?

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How to tell if transformer is DC or AC?

How to tell if transformer is DC or AC?
Answer : To determine whether a transformer is designed for DC (Direct Current) or AC (Alternating Current), you need to understand the fundamental design and operation principles of transformers. Transformers typically work ... any point, or do you have a specific transformer in mind that you need to check?...

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Is a 3-phase transformer ac or DC?

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Is transformer used to convert DC to AC?

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Can a transformer convert AC to DC?

Can a transformer convert AC to DC?
Answer : A **PLC (Programmable Logic Controller)** and a **microcontroller** are both electronic devices used for automation, but they are **not the same thing**-though they can sometimes serve similar purposes. ... - Would you like an example of how a PLC and a microcontroller would each control a motor?...

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Is a transformer AC or DC machine?

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Is a 12 volt transformer AC or DC?

Is a 12 volt transformer AC or DC?
Answer : A 12-volt transformer typically provides **AC (Alternating Current)**. Transformers are designed to work with alternating current, not direct current (DC). The transformer works by inducing voltage through ... (often with a diode or bridge rectifier) and possibly a filter to smooth the output....

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Which type of transformer is used in AC?

Which type of transformer is used in AC?
Answer : In AC (alternating current) systems, **two main types of transformers** are commonly used: 1. **Step-up Transformer**: This transformer increases the voltage from the primary side ... power distribution and for adapting voltage levels according to the needs of different devices or systems....

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Is a 3 phase transformer AC or DC?

Is a 3 phase transformer AC or DC?
Answer : A 3-phase transformer works with **AC (Alternating Current)**. In a 3-phase system, three separate alternating currents (AC) are used to provide a more efficient and stable power supply compared to a ... clarify: **A 3-phase transformer is designed to handle AC power**, not DC (Direct Current)....

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Which transformer converts AC to DC?

Which transformer converts AC to DC?
Answer : A transformer by itself cannot convert AC to DC. A transformer is used to **step up** or **step down** the AC voltage. It only works with alternating current (AC), and its job is to ... and then the DC output may be further smoothed using filters or voltage regulators to ensure a stable DC voltage....

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Is transformer output AC or DC?

Is transformer output AC or DC?
Answer : The output of a transformer is **AC (Alternating Current)**. Transformers are designed to work with AC because they rely on the principle of electromagnetic induction, which requires a changing ... to use additional components like rectifiers to convert the AC output from the transformer into DC....

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