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Types of Transformers,

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                              TYPES OF TRANSFORMERS Transformers are classified based on different criteria: 1. Based on Voltage Level: Type Description Example Use Step-up Increases voltage (V₂ > V₁) Power stations → transmission Step-down Decreases voltage (V₂ < V₁) Transmission → homes 2. Based on Construction: Type Description Core Type Windings surround a large rectangular core limb Shell Type Core surrounds windings (sandwich-style) Berry Type Core looks like a spoke-wheel (circular type core) 3. Based on Phases: Type Description Single-phase Used in homes, small equipment Three-phase Used in industry and high-power systems 4. Based on Use / Application: Type Description Power Transformer Used in transmission (high voltage) Distribution Transformer Used to distribute power to houses, offices Instrument Transformer Measures current or voltage (used with meters) └─ CT (Current Transfor...
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Transformer, including its construction, working principle, and diagram

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                                   English TRANSFORMER ✅ Definition: A transformer is a static electrical device that transfers alternating current (AC) electrical energy from one circuit to another through electromagnetic induction , without changing the frequency. ⚙️ CONSTRUCTION OF TRANSFORMER: A transformer mainly consists of: Core : Made of laminated silicon steel . Provides a low reluctance path for magnetic flux. Reduces eddy current loss. Primary Winding : Connected to the input (AC supply). Receives electrical power and converts it to magnetic flux. Secondary Winding : Connected to the output load. Converts magnetic flux back to electrical power. Insulation : Separates the windings and core. Prevents short circuits. Tank and Cooling System : Outer shell filled with transformer oil . Used for insul...
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Electrical Units and Quantities

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                                 English SI Units in Basic Electrical  Quantity Symbol SI Unit Name SI Unit Symbol Definition Example Electric Charge Q Coulomb C 1 C = charge of ~6.24×10¹⁸ electrons Electric Current I Ampere A 1 A = 1 C/s (1 Coulomb per second) Voltage (Potential Difference) V Volt V 1 V = 1 J/C (1 Joule per Coulomb) Resistance R Ohm Ω (Omega) 1 Ω = 1 V/A Conductance G Siemens S 1 S = 1/Ω Power P Watt W 1 W = 1 J/s Energy E Joule J 1 J = 1 W × 1 s Capacitance C Farad F 1 F = 1 C/V Inductance L Henry H 1 H = 1 V·s/A Frequency f Hertz Hz 1 Hz = 1 cycle/sec Magnetic Flux Φ Weber Wb 1 Wb = 1 V·s  Types of Resistance (English) In electrical engineering, resistance is the property of a material to oppose the flow of electric current. There are different types ...
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Basic Electrical Concepts – Charge, Current, Voltage, Power & Energy

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                                 English Ohm’s Law (ओहम का नियम) 🟩 1. Definition (English) Ohm’s Law states that: “The current flowing through a conductor is directly proportional to the voltage across its ends, provided the temperature and other physical conditions remain constant.” Mathematically :      V = I × R Where: V = Voltage (Volts) I = Current (Amperes) R = Resistance (Ohms, Ω) Electric Charge 🔹 English: Definition: Electric charge is the basic property of matter responsible for electric force. It can be positive or negative. Unit: Coulomb (C) Example: A proton has +1.6 × 10⁻¹⁹ C charge. An electron has −1.6 × 10⁻¹⁹ C charge. Voltage (Potential Difference) 🔹 English: Definition: Voltage is the electric potential difference between two points. It is the energy per unit charge. Formula: V = W / Q Unit...
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