Electrical transformers are a vital ingredient to the power grid. Without these assets, electricity generation and transmission over long distances would not be possible nor would it power urban centres and industrial complexes. Once a thriving Canadian industry, transformer manufacturing has been challenged in recent years by increasing competition from offshore players with dumping margins close to 20 percent and a loss of skilled resources mainly due to an aging workforce....

Power transformers are usually supplied with a ground from the core of the transformer to the tank (earth/ground). Smaller, dry-type transformers may not have this ground, but it is always used on larger transformers. Grounding a transformer’s core may not sound like a smart thing to do, but it is a very necessary part of the transformer’s insulation system....

The critical importance of power to every aspect of our world cannot be over-exaggerated. It must be generated and distributed effectively to end users, and any disruption in that process means loss of operations, money, and in extreme cases, life. Therefore, the reliability of power creation and distribution must be continually safeguarded and improved. This doesn’t happen by chance...