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Experience in Mexico With Non-Ceramic Bushings in Contaminated & Seismic Areas

Experience in Mexico With Non-Ceramic Bushings in Contaminated & Seismic Areas

The first application of composite insulators in Mexico  began in the mid 1990s with initial use limited to  transmission lines in areas with pollution problems. A  growing body

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Sheath Voltage Limiters Protect HV Power Cables

Sheath Voltage Limiters Protect HV Power Cables

Over the past decade, demand for longer lines and higher current capacities for HV power cables has required new methods of loss prevention. At the same time, ensuring high reliabi

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New Concept in Busbar Design Employs Phase-to-Phase Insulation

New Concept in Busbar Design Employs Phase-to-Phase Insulation

One of the most commonly used phase-to-phase insulation applications on HV electrical systems today is as transmission line spacers to avoid phase clashing. There are also lesser-u

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Research Center Develops Simulation Tools to Optimize Design, Manufacturing & Seismic Performance of Components

Research Center Develops Simulation Tools to Optimize Design, Manufacturing & Seismic Performance of Components

The past three decades have witnessed numerous evolutions (and in some cases even revolutions) when it comes to components used on electrical networks. For equipment suppliers, the

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Assessing Criteria for Safe Live Line Replacement of Polymeric Insulators

Assessing Criteria for Safe Live Line Replacement of Polymeric Insulators

One of the few remaining hurdles faced by composite insulators in gaining broad acceptance by utilities worldwide is the issue of worker safety when circumstances require changing

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Article of the Week

featured

Experience in Mexico with Insulation for Substation Equipment

October 20, 2014

This article is an edited version of a contribution by Manuel A. Guzmán V., Head of the Transformer Section of the LAPEM research laboratories of Mexico’s...

Photo of the week

composite insulators on transmission lines

Interphase Spacers Can Prevent Conductor Galloping

October 20, 2014

The use of composite insulators on transmission lines has increased steadily in recent years due to their well-known performance advantages as well as their...

Failures of Fuse Cutouts

Failures of Fuse Cutouts

October 10, 2014

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