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POWER SYSTEM
POWER SYSTEM

SHORT CIRCUIT FAULT

SHORT CIRCUIT FAULT: In power system, if the current flowing path is shorted by touching the earth or touching another conductor which causes huge current...
POWER SYSTEM
POWER SYSTEM

CORONA, FACTORS AFFECTING CORONA

Corona In overhead transmission line, when an alternating potential difference is applied across two parallel conductors, potential gradient is set up in the air. This...
POWER SYSTEM

FAILURE AND TESTING OF INSULATOR

Failure of insulator Main causes of an insulator failure are abnormal stress, ageing, cracks, flash over etc. Flow of leakage current through the insulator, also...
POWER SYSTEM

STRING EFFICIENCY

Potential distribution over a string of suspension insulators: In suspension insulator, it consists of connecting number of porcelain discs in series. So, due to the...
POWER SYSTEM

TYPES OF INSULATOR

Types of insulator: Different types of insulators are Pin insulator: This type of insulator normally used in low voltage line. It is made by porcelain...
POWER SYSTEM

INSULATOR

Insulators As we have already known that, every pole or tower is earthed, we also need some insulation between the live conductor and earth. Insulators...
POWER SYSTEM

CAPACITOR BANK.

Capacitor bank : When a single unit of capacitor is not sufficient for high voltage rating as well as kilo or mega VAR rating, a...
POWER SYSTEM

POWER FACTOR IMPROVEMENT

Power factor improvement Low power factor means current lags far behind of voltage. Due to inductive load, circuit takes lagging current. So, if we want...
POWER SYSTEM

BASICS OF POWER FACTOR

POWER FACTOR : We have already seen that electric power generated, transmitted and distributed in the form of alternating current is generated. what is power...
POWER SYSTEM

CONDUCTOR MATERIAL.

In case of mechanical design of over head line, main components of overhead lines are (i) conductors, (ii) supports, (iii) insulators. Beside these (a) bracket...
POWER SYSTEM

ECONOMIC CHOICE OF TRANSMISSION VOLTAGE

Economic choice of transmission voltage: Higher transmission voltage causes reducing the conductor size. Rising voltage n times mean reducing the conductor size to 1/n2 that...
POWER SYSTEM
POWER SYSTEM
POWER SYSTEM

INTRODUCTION

POWER TRANSMISSION: Transmission means transmitting process of something from one place to another. Similarly electrical power transmission is nothing but the process of electrical power...