Industrial Transformers

3 Jul 2017

Background:
Transformers are used in electric power transmission and distributions and are devices that transfer electric power at different voltage levels. The main components within the transformers are the core and windings which are oil immersed. An oil conservator and Bucholz relay is also commonly found to monitor oil levels.

Application:
As transformers age, they become more likely to lose internal oil. It is important for oil levels in the transformer main tanks to be full, as they act as an insulator and allow the transformer to function efficiently. High voltage transformer and switch gear units are also often designed to be submerged in oil which act as an insulator, making sure any technicians working on the units are not at risk of potentially fatal shocks. For transformers that are not fitted with an oil conservator or Bucholz relay, few means of oil level inspection exist and traditional methods include inspection by opening the lid of the transformer. When the lid is opened, the insulating oil is exposed to the moisture in the atmosphere, which increased the rate of oil deterioration causing the life of insulating oil to shorten. This contributes to more frequent oil changes, significant downtime to the system, when an oil change is conducted and the formation slug reduced efficiency. A non-invasive oil monitoring liquid level indicator is necessary.

Solution:
The Portalevel Max Transformer will be a safe, efficient and reliable solution to inspect oil levels in transformers non-invasively, typically in transformers that have no means of external oil indication. With the Portalevel Max Transformer, oil level inspection can be done routinely without opening the lid of the transformer and thus prevent unwanted moisture from being absorbed by the oil, which deteriorates the oil. Many companies around the world are beginning to use the Portalevel MAX for checking the oil levels in Transformer & Switch Gear Units. Since this equipment can non-invasively check the presence from the outside of the tanks, technicians can operate safely and with confidence.

46-47 Mount Street
Mount Street
W1K 2SA
London
United Kingdom

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