
Foreword to the Special Edition
Bushings are a very important part for a great deal of HV equipment. Without bushings, actual large power transformers are unthinkable. Throughout history they have...
BY MLADEN Banovic, PhD, Editor-in-Chief
Bushings are a very important part for a great deal of HV equipment. Without bushings, actual large power transformers are unthinkable. Throughout history they have...
Growing with PFIFFNER Group Moser Glaser is an independent producer of transformers, wall bushings and busbars. We are a Swiss-based company with 128 employees, and...
Transformer bushings market trends Global market development Introduction We estimate that the global market for transformer bushings was worth a little under US$1.4 billion in...
Abstract Bushings are critical for the safety of power networks. With the power transformer collective market expected to reach around 3.1 billion USD in the...
Hubbell Power Systems focuses on traditional and modern bushing technologies One Hubbell What happens when two of the industry’s leading North American capacitance graded bushing...
Abstract This article focuses on the concept of capacitance-graded, i.e. condenser bushings – both oil-impregnated and resin-impregnated paper bushings – for extra-high voltage transformers. After...
Founded in 1967, CEDASPE celebrates its 50th company anniversary this year. Based in Italy, CEDASPE has grown from a small workshop with three employees and...
Abstract Pluggable bushings offer numerous advantages over conventional bushings, but with the same performance characteristics: simple and much faster to install, they do not require...
The H-J Family of Companies is a global leader in the manufacture and supply of components to the transformer and switchgear OEM and utility markets....
Yash Highvoltage Insulators Pvt. Ltd., an ISO 9001 certified company, is an independent, Indian manufacturer of transformer bushings and fibre glass cylinders, located in the...
The paperless, dry-type bushing technology Abstract Paper-insulated bushings (OIP and RIP) have been the dominant bushing type for the power transformer industry for many years....
Abstract Liquid-filled power transformers typically contain thousands of liters of flammable insulation. When this insulation breaks down, there is a high risk of transformer failure...
Abstract This article focuses on condenser bushings monitoring, of both oil-impregnated and resin-impregnated paper bushings, for extra high-voltage class transformers in order to avoid a...
Increasing profitability and avoiding failures What do the Tennessee Valley Authority, Chicago Mercantile Exchange, Gerdau AmeriSteel, and Mitsubishi Electric have in common? They all have...
Abstract Bushing monitoring is an important component of an effective condition monitoring program. Bushings play an important background role in the smooth operation of the...
Elimination of temperature dependences (Double-Reference Method) Abstract Standard online monitoring systems for bushings must, in particular, consider the dissipation factor and the main capacity (C1)...
Abstract On-line monitoring has proven to be an effective technology to detect deteriorating high voltage bushings and prevent failures. While there is much focus placed...
Higher accuracy leads to better faults detection Abstract Transformer bushings are one of the most critical components of a transformer. Up to 20% of...
Bushing test standards for off-line bushing testing are defined by the IEEE and IEC [IEEE C57.19.00-1997 & IEC 60137/2003-08]. Until recently, bushing testing has been...
Cargolog® Impact Recorder System Abstract Incorrect handling during transport can damage your product, both visible as well as concealed damage, which can be difficult to...
Abstract Bushing diagnosis can include various methods, from a simple visual inspection or a conventional power/dissipation factor measurement, to the latest high-tech broadband dielectric frequency...
Abstract As reported in CIGRE TB 642, windings, tap changers and bushing related failures are the major contributors to transformer failure. About 17% of transformer...
Abstract Many oil-filled large power transformers have been in service for years. One issue with aging transformers is addressing oil leaks. This article describes a...