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    Showing 1-16 of 39 results
    Transformer testing at factory

    Percentage Reactance in Power System (Transformer, Generator or Reactor)

    • Categories Power System, Substation, Switchgear, Transformer, Transmission Line

    Percentage reactance of power system elements such as generator, transformer and reactor are extensively used in short circuit calculation when any fault occurs in the system. Most faults in the …

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    Double end break disconnect switch

    Disconnect Switches (Isolator) in Substation: Types, Design and Working

    • Categories Substation, Power System, Switchgear, Transmission Line

    A disconnect switch is a mechanical device that conducts electrical current and provides an open point in a circuit for isolation of circuit breakers, circuit switchers, power transformers, capacitor banks, …

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    Transmission-switching

    Why Do We Use Transmission Switching in Electricity Supplies?

    • Categories Power System, Circuit Breaker, Electrical Relays, Switchgear, Transmission Line

    A transmission switching system is an essential component of the electricity supply network. It enables electricity transmission from one line to another for end users. It also helps ensure that …

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    Principle of core balance protection RCCB working

    How RCCB/ELCB Protects You from Death?

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

    Earthing does not guarantee that humans will be safe when they come into contact with live conductors. Although relays may be installed to detect earth leakages, typically their settings are …

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    Shackle-Insulator-Spool-Insulator

    Shackle insulator (Spool Insulator): Types, Construction & Working

    • Categories Power System, Switchgear, Transmission Line

    Shackle insulators are one type of overhead insulator used to provide insulation to conductors on low voltage power lines. It is also known as a spool insulator or a butterfly …

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    Type B MCB

    Type B Miniature Circuit Breaker ( Type B MCB)

    • Categories Circuit Breaker, Switchgear

    A Type B MCB is a common type of miniature circuit breaker used to protect low power domestic circuits and residential application from overcurrent and short circuit faults. The MCB …

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    Substation Bus Configurations

    Substation Bus Configuration / Scheme: The Definitive Guide

    • Categories Power System, Substation, Switchgear

    In this article, you will learn different types of substation bus configuration and their application. The equipment and buses installed in the substation switchyard are arranged and connected in specific …

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    Complete Guide on Ground Fault Circuit Interrupters

    GFCI (Ground Fault Circuit Interrupter) – Working, Types, Installing and Troubleshooting

    • Categories Circuit Breaker, Basic Electrical, Power System, Switchgear

    A ground fault circuit interrupter (GFCI or GFI) is an inexpensive electrical switchgear device that can either be installed in your electrical system or built into a power cord to protect …

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    Circuit-Breaker-Working-Principle.gif

    Circuit Breaker Definition, Working Principle and Arcing Phenomenon

    • Categories Circuit Breaker, Substation, Switchgear

    Definition A circuit breaker means the device which breaks (Open) the circuit under the abnormal condition and protects the system from hazards. The function of a circuit breaker is to isolate …

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    Current 2BTransformer 2BConstruction 2Bor 2BCircuit 2BDiagram 2Band 2BSymbol

    Current Transformer (CT) – Construction and Working Principle

    • Categories Circuit Breaker, Electrical Machines, Generation, Instrumentation, Measurement, Power System, Substation, Switchgear, Transformer

    A current transformer (CT) is a type of transformer that is used to measure AC current. It produces an alternating current (AC) in its secondary which is proportional to the AC …

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    insulation resistance measurement vs dielectric breakdown testing

    Difference between Dielectric Testing & Insulation Resistance Measurement

    • Categories Measurement, Power System, Switchgear

    All electrical installations and equipment comply with insulation resistance specifications so they can operate safely.  Whether it involves the connection cables, the sectioning and protection equipment, or the motors and generators, …

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    Gas insulated switchgear parts

    Introduction to Gas Insulated Substations / Switchgears (GIS)

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

    Gas-insulated substations (GIS) have been used in power systems over the last three decades because of their high reliability, easy maintenance, small ground space requirement, etc. This article is an …

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    Low voltage Switchgear

    Low Voltage Switchgear

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

    As per IEC 60947, switchgears with rated voltages up to 1000 V ac and 1500 V dc are termed as low voltage switchgear. The term ‘switchgear’ is a generic term …

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    substation earthing

    Substation Earthing System Design

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

    We have already given an introduction to substation earthing system in an article published earlier. Today we are going to discuss the design of substation earthing system. Before 1960s the …

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    fundamental requirements of protective relaying

    Basic Relays – Electromagnetic Attraction and Induction Relays

    • Categories Power System, Electrical Relays, Substation, Switchgear

    Most of the relays used in the power system operate by virtue of the current and/or voltage supplied by current and voltage transformers connected in various combinations to the system …

    Read More
    Solid State Relay

    Solid State Relays (Static Relays)

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

    What is a Static Relay? There are two basic classifications of relays – Electromechanical Relays and Solid State Relays (Static relay). One main difference between them is electromechanical relays have …

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