Basic Electronics and Electrical Engineering: Chapter 4: Synchronous Machines

Synchronous Reactance

Synchronous Machines

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Synchronous Machines: Synchronous Reactance

SYNCHRONOUS REACTANCE

The leakage reactance X_L and the armature reactance X_a may be combined to give "synchronous reactance" X_s.

X_s = X_L+ X_a …. (4.3)

For the same field excitation, terminal voltage V is decreased from its no‒load voltage E₀ to V (for a lagging power factor). This is because of

(i) Drop due to armature resistance IR_a

(ii) Drop due to synchronous reactance IX_S.

Therefore, total voltage drop in an alternator under loaded condition is,

= IR_a + jIX_S = I[R_a+jX_S]

= IZ_{S …………}(4.4)

Where,

Z_S= R_a+ jX_s ……..(4.5)

Basic Electronics and Electrical Engineering: Chapter 4: Synchronous Machines : Tag: Basic Engineering : Synchronous Machines - Synchronous Reactance

Home | Department: ECE Department | Ist Year | Subject: Basic Electronics and Electrical Engineering |

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Basic Electronics and Electrical Engineering: Chapter 4: Synchronous Machines

Basic Principle of Synchronous Machines

Advantages of Stationary Armature

Construction of an Alternators - Synchronous Machines

Operation of an Alternator - Synchronous Machines

Speed and Frequency of an Alternator - Synchronous Machines

Pitch Factor (Kp) of an Alternator - Synchronous Machines

Distribution Factor (Kd) of an Alternator - Synchronous Machines

EMF Equation of an Alternator - Synchronous Machines

Alternator on No Load - Synchronous Machines

Alternator on Load - Synchronous Machines

Synchronous Reactance - Synchronous Machines

Voltage Regulation - Synchronous Machines

Determination of Voltage Regulation - Synchronous Machines

Parallel Operation of Alternators Synchronizing - Synchronous Machines

Load Characteristics of Alternator - Synchronous Machines

Synchronous Motor - Characteristics, Construction, Principle of Operation, Equivalent Circuit, Applications, Comparison

Stepper Motor and its Types

Brushless DC Motor (BLDC Motor) - Construction, Operation

Synchronous Machines: Important Solved Examples Problems

Synchronous Machines: Exercise Problems

Synchronous Machines: 2 Marks Important Questions with Answers

Synchronous Machines: Important Part B Questions

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