Electrical Axis: ABB

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Reducing Harmonics in AC Drive Systems through Structural Modifications and Filtering Methods

Editorial StaffSunday, February 19, 2023

A Variable Frequency Drive (VFD), also known as an Variable Speed Drive (VSD), is an electronic device that controls the speed and torque of...

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ABB electric protection overvoltage protection surge protection

Dimensioning, testing and application of metal oxide surge arresters in medium voltage systems

Editorial StaffFriday, February 17, 2023

Metal Oxide Surge Arresters | Source: ABB Metal oxide surge arresters (MO) are important components of medium voltage electrical systems be...

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ABB directional relay of protection power system protection protective relaying

Directional protection and directional zone selectivity

Editorial StaffFriday, February 17, 2023

Source: ABB The deﬁnition of selectivity is given by the ANSI C37.17 Standard, “American National Standard for Trip Devices for AC and Gene...

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ABB Hitachi Energy Mobile Transformer power system operation power system stability Transformer

Powering up in Remote Locations: Advantages and Functionalities of Hitachi Energy's Mobile Transformer

Editorial StaffSunday, February 12, 2023

Source: Hitachi Energy Hitachi Energy offers Mobile Transformers that are equipped with "shell-type" technology, which is a pate...

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ABB electric protection power system protection UFES

ABB’s New Ultra-Fast Earthing Switch

Editorial StaffSunday, April 03, 2022

Sectional View of ABB UFES | Source: ABB In rare cases, failure inside a switchgear cubicle due to a defect, an exceptional service condit...

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Electrical Axis

Reducing Harmonics in AC Drive Systems through Structural Modifications and Filtering Methods

Dimensioning, testing and application of metal oxide surge arresters in medium voltage systems

Directional protection and directional zone selectivity

Powering up in Remote Locations: Advantages and Functionalities of Hitachi Energy's Mobile Transformer

ABB’s New Ultra-Fast Earthing Switch

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