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    Showing 17-32 of 39 results
    all day efficiency of transformer

    All Day Efficiency of Transformer

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

    Definition The ratio of output in kWh to the input in kWh of a transformer over a 24-hour period is known as all day efficiency. ηall-day = Output in kWh …

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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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    load forecasting in power system

    Load Forecasting – Purpose, Classification and Procedure

    • Categories Power System, Alternator, Basic Electrical, Generation, Measurement, Substation, Switchgear, Transformer

    What is Load Forecasting? Electrical energy cannot currently be stored in large amounts. It has to be generated whenever there is a demand for it. It is, therefore, imperative for …

    Read More
    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 …

    Read More
    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 …

    Read More
    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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    Gas turbine power plant

    Introduction to Gas Turbine Power Plant

    • Categories Power System, Generation, Measurement, Substation, Switchgear

    The gas turbine power plant obtains its power by utilizing the energy of burnt gases and air, which is at high temperature and pressure by expanding through several rings of …

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    AB-Switch

    Air Break Switch – Types and Uses

    • Categories Power System, Substation, Switchgear, Transformer

    An “air break switch’ is a switchgear device that uses air as the dielectric. Air Break Switches (ABS) are widely installed throughout distribution networks for use as both isolation or …

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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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    indoor-vacuum-circuit-breaker

    Vacuum Circuit Breaker (VCB) – Principle, Construction and Working

    • Categories Circuit Breaker, Power System, Substation, Switchgear

    What is VCB? VCB stands for Vacuum Circuit Breaker. In vacuum circuit breakers, the vacuum is used as the arc quenching medium. Vacuum offers the highest insulating strength. So it …

    Read More
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    13Aug2021
    protective zones in power system
    Protective Zones in Power Systems
    21Sep2016

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