Draw and explain V and inverted V curves of synchronous motor.

List different starting methods of three phase synchronous motor. Explain any one of them.
Answer : There are several methods to start a three-phase synchronous motor, and these methods are used to overcome the challenges of starting synchronous motors, as they require high starting torque. Some ... used because it allows the motor to start smoothly without the need for complex external equipment....

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Explain the effect of variable excitation on the behaviour of synchronous motor under constant load condition.

Explain the effect of variable excitation on the behaviour of synchronous motor under constant load condition.
Answer : The excitation in a synchronous motor refers to the direct current (DC) supplied to its field winding. This excitation determines the strength of the magnetic field produced by the rotor ... in optimizing the motor's performance, especially in power factor correction and reactive power management....

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Explain the working principle of a synchronous motor.

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Draw I-V characteristics of power transistor. Show different regions.

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Draw the V-I characteristics of power transistor.

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Draw symbol of following: i) Earth Switch ii) Lightning arrester iii) Circuit breaker v) Isolator

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Draw the circuit diagram of battery charger using SCR and explain its working.

Draw the circuit diagram of battery charger using SCR and explain its working.
Answer : ### Battery Charger Circuit Using SCR Here's a basic explanation of how a battery charger circuit works using an SCR (Silicon-Controlled Rectifier): #### **Circuit Diagram:** The circuit ... -DC conversion and regulate the charging process, providing a safe and reliable way to charge batteries....

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State significance of earthing. Draw and explain pipe earthing. State the values of earth resistances for: (i) Substation (ii) Residential wiring (iii) H.T. Line (iv) L.T. Line.

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Draw and explain the use of: (i) Combination plier (ii) Tester (iii) Wire Striper (iv) Hammer.

Draw and explain the use of: (i) Combination plier (ii) Tester (iii) Wire Striper (iv) Hammer.
Answer : Here's an explanation and description of the use of each tool: ### (i) **Combination Pliers** - **Image Description:** Combination pliers are typically a tool with a pair of jaws that can ... electrical devices or panel boxes. Let me know if you'd like a visual representation of these tools!...

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Draw and explain the construction and working of Dead Weight Tester.

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Draw a neat sketch of Rotameter and explain its working principle.

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Draw and explain the block diagram of an instrumentation system.

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Draw constructional details of C-types Bourdon tube and explain its working.

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Draw and explain the construction of underground cables.

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Draw a neat labeled diagram of a neon sign tube and explain its working.

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Explain Squirrel Cage Induction Generator (SCIG) and also draw a diagram.

Explain Squirrel Cage Induction Generator (SCIG) and also draw a diagram.
Answer : ### Squirrel Cage Induction Generator (SCIG) A **Squirrel Cage Induction Generator (SCIG)** is a type of **asynchronous machine** that operates as a generator instead of a motor. It is a ... and simplicity. The absence of brushes or slip rings makes it a low-maintenance and cost-effective option....

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Draw and explain a fixed dome type biogas plant.

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Draw and explain filled system thermometer.

Draw and explain filled system thermometer.
Answer : A **filled system thermometer** is a type of thermometer that uses a liquid or gas that expands and contracts based on temperature changes to measure temperature. These thermometers work on ... response to temperature changes, with the height of the fluid providing an accurate temperature reading....

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Draw and explain Doppler type flow measurement.

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Draw and explain Bi-polar HVDC transmission line.

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Explain the conditions for setting up negative phase sequence currents in an alternator. Draw the protective scheme to detect them and operate the CB.

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Define slip and synchronous speed of 3 phase induction motor.

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What is the construction and working principle of single phase synchronous motor?

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What is the working principle and operation of a synchronous reluctance motor?

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What is the principle of synchronous and asynchronous motor?

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What is the difference between a synchronous and asynchronous motor?

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Distinguish between an induction motor and a synchronous motor.

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What is the difference between induction motor and synchronous motor?

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How to explain V ir?

How to explain V ir?
Answer : To explain **V = IR** in simple terms, let's break it down: - **V** stands for **Voltage** (also called potential difference), which is the "push" that makes electric charges ... will flow through the resistor. This simple relationship is key to understanding how electricity behaves in a circuit....

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Draw & explain block diagram of Electric drives

Explain block diagram of Electric drives
Answer : ### Block Diagram of Electric Drive An electric drive system is a mechanism used to control the motion of electrical machines, such as motors, and is responsible for controlling the speed, ... drive system works and how each component interacts to provide accurate control over motor-driven systems....

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