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    Showing 17-32 of 43 results
    minimum oil circuit breaker

    Oil Circuit Breakers – Types, Working and Construction

    • Categories Circuit Breaker, Power System

    In oil circuit breakers, some insulating oil (e.g., transformer oil) is used as an arc quenching medium.  Working Principle of Oil Circuit Breaker When the contacts of the oil circuit …

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    back up protection

    Primary and Back-up Protection in Power System

    • Categories Electrical Relays, Basic Electrical, Circuit Breaker, Electrical Machines, Generation, Power System, Substation, Switchgear, Transformer

    Primary and Back-up Protection Primary protection (Main protection) is the essential protection provided for protecting an equivalent/machine or a part of the power system. As a precautionary measure, addition protection …

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    interview question circuit breaker

    Circuit Breakers – Interview Questions with Answers

    • Categories Interview Questions, Circuit Breaker, Power System

    1. What is a Circuit Breaker? Circuit Breaker is a mechanical device designed to close or open contact members, thus closing or opening an electrical circuit under the normal or …

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    types of electrical relays

    Types of Electrical Relays

    • Categories Switchgear, Circuit Breaker, Electrical Relays

    We have already discussed the working of electrical relays. Now we are going through different types of electrical relays. There are two basic classifications of relays: Electromechanical Relays Solid State …

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    Metal Clad Switchgear

    Low Voltage Circuit Breakers – Design and Construction Basics

    • Categories Power System, Circuit Breaker, Switchgear

    In this article, we are going to study the basics of low voltage circuit breaker design and construction. The operation and arc extinction of different types of circuit breakers were …

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    Sag in Transmission lines

    Sag in Overhead Transmission Lines

    • Categories Power System, Circuit Breaker, Generation, Locomotives, Substation, Switchgear

    The difference in level between points of supports and the lowest point on the conductor is called sag in overhead transmission lines. Sag in Hot and Cold Day While erecting …

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    corona effect in power system

    Corona Effect in Power System

    • Categories Power System, Circuit Breaker, Generation, Substation, Switchgear, Transformer

    What is Corona? The phenomenon of violet glow, hissing noise and production of ozone gas in an overhead transmission line is known as the corona. In this article, we will study …

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    fUNCTION OF PROTECTIVE RELAYS

    Function of Protective Relays in Power System

    • Categories Electrical Relays, Circuit Breaker, Power System, Substation, Switchgear

    We usually think of an electric power system in terms of its more impressive parts – the big generating stations, transformers, high-voltage lines, etc. While these are some of the basic elements, …

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    Supervisory Control Center

    IEC 61850 – Substation Automation – Fundamentals

    • Categories Substation, Circuit Breaker, Electrical Relays, Power System, Switchgear

    What is IEC 61850? IEC 61850 is a standard for the design of electrical substation automation. It is the base for all developments in substation automation. IEC 61850 is a …

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    Tulip contacts of Vacuum Circuit Breaker

    Basic Types of Switchgear Components

    • Categories Switchgear, Circuit Breaker, Electrical Machines, Electrical Relays, Instrumentation, Power System, Substation

    Before learning about different switchgear components, let us understand what is switchgear. The apparatus used for switching, controlling and protecting the electrical circuits and equipment is known as switchgear. Switchgears are …

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    Protective relay working

    What are Protective Relays? | Types and Working

    • Categories Electrical Relays, Circuit Breaker, Power System, Substation, Switchgear, Transformer

    What is a Protective Relay? The protective relay was invented more than 160 years ago. During the last 60 years, it has undergone considerable change, the most obvious of which …

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    Switchgear-control-panel

    What is Switchgear? | Features, Components and Classification

    • Categories Switchgear, Circuit Breaker, Power System, Substation

    What is Switchgear? Definition of Switchgear: The apparatus used for switching, controlling and protecting the electrical circuits and equipment is known as switchgear. The term ‘switchgear’ is a generic term …

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    Breaker failure relay

    Breaker Failure Relay (Back-up Protection Relay)

    • Categories Circuit Breaker, Electrical Relays, Power System, Substation, Switchgear

    Each year as line and system loading increase and more operating companies superimpose higher voltage transmission systems on existing facilities, the need for high-speed fault clearing, particularly in the face …

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    RCD ELCB RCCB Working

    Residual Current Protective Devices (RCCB, ELCB & RCBO)

    • Categories Power System, Circuit Breaker

    What is an RCD? A Residual Current Device (RCCB, ELCB, RCBO, GFCI etc.) is a device that is designed to provide protection against electrocution or electrical fires by cutting off …

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    moulded case circuit breaker

    Moulded Case Circuit Breaker (MCCB) – Types and Working

    • Categories Power System, Circuit Breaker

    Moulded Case Circuit Breaker is an electromechanical device which protects a circuit from overcurrent and short circuit. It provides overcurrent and short circuit protection for circuits ranging from 63 Amps …

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    ACB Air Circuit Breaker

    Working of Air Circuit Breakers

    • Categories Circuit Breaker, Basic Electrical, Power System

    What is an ACB? A circuit breaker in which the contacts open and close in the air at atmospheric pressure is defined as an Air Circuit Breaker. The working of …

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    26May2016
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    16Mar2021

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