Transformers Magazine Vol. 4 Issue 3

Transformers Magazine Vol. 4 Issue 3
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Dear Readers,

In the previous issue of Transformers Magazine, my message highlighted how the information on the technology and market trends that the magazine brings can help companies to stay updated and increase their ability to respond promptly to ever-changing requirements and conditions in the industry. Following this, I had discussions with people at some industry events who showed more interest in this, and held presentations on this matter. Considering the stirred interest, I would like to point to important aspects that emerged out of these discussions – one of which is the reliability of transformer operation.

I think there is some kind of a consensus that reliability is a number one requirement driving technology trends today, among other requirements such as extending asset lifetime, reducing operational costs and reducing the impact on the environment. For some applications there are equally important requirements that concern overloading capability, reduction of size/weight, enabling infeed of renewable energy, etc.

Coming back to reliability, let me quote a statement that was recently published in our magazine: ”Every day across the United States, half a million people on average are impacted by power outages, which carry an estimated annual cost of at least $150 billion and rising.”

Column: Tap-changer know-how

Tap-changer DGA: Uncovering an enigma Part 1: The field of DGA   General Gases dissolved in insulating liquids are generated by thermal deterioration of the insulating liquid or they...

One-stop shop for testing

Transformer testing The core activities of our HV lab are research tests, and type and special testing of power transformers, mainly the transformers used in the distribution network. As...

Column: Market review

Power transformers – Market development to 2030 The global market for power transformers has continued to grow since the global crash in 2008, and furthermore shows good potential for...

Transformer cabinets

Introduction Modern power transformers are equipped with numerous components, control, protection and monitoring sensors, systems and devices, etc. Signals for the control, protection and surveillance of transformer operation, as...

Column: Condition monitoring

Beyond the basics of condition monitoring Traditional approaches to asset management worked in traditional business environments, where time-based maintenance, fix on fail and redundant capacity were common, but times...

Earthquake-proof cast-resin transformer

The company LSIS (LS Industrial Systems) is a leading company in electric power systems/automations, smart grid solutions and photovoltaic systems since 1974. LSIS invests more than 5% of annual...

Space weather

Avoiding grid disruption and transformer impact from geomagnetic disturbances When you think of disruptive weather, snow storms, thunder storms, lightning and high speed winds probably come to mind. Solar...

Column: Transformer lifecycle

Short-circuit withstand capability of power transformers – Part II Verification by full-power testing In short-circuit testing, the transformer is subjected to the actual short-circuit current. Tests are performed in...

Rugged fans for oil-cooled transformers

Power transformers switch AC voltage between different voltage levels, making them essential in power plants, industrial operations and electrical substations. To prevent damage due to overheating, fans are used...

The danger of vibration in power transformers

1.      Introduction The key to a sustainable power grid rests on high voltage power transformers. Transformers used in the North American power networks are currently over 30 years of...

Transformer handling and transport

1. Introduction Severe damage may be caused to transformers when they are subjected to challenging transport conditions such as troubled sea during sea transportation, or a rough road during...

Support in technology and market development

The structure and topography of the grid varies from country to country and so do transformer requirements. There are many factors impacting this including, but not limited to, the...