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Taiwan power company chooses online DGA monitoring from Reinhausen

Taiwan: TPC wanted a powerful system for the new DGA monitoring and therefore chose MSENSE® DGA from MR.

Taiwan Power Company (TPC) has been using online oil analysis equipment for many years, but the old systems had to be replaced due to old age and susceptibility to failure. Online oil analysis devices play a key role in the analysis of the operational safety of oil-filled, paper-insulated power transformers. They make a measurable impact on extending the service life of transformers, as they are the most powerful option of detecting and analysing errors in the windings of a transformer.

TPC decided to equip their more than 2,000 power transformers with online DGA sensors over ten years ago. For the 69 kV to 345 kV segment, TPC chose very simple DGA sensors, so-called “smoke detectors”, which only measure the total dissolved combustible gas (TDCG) share in the transformer oil. Generally, these devices are very inexpensive, but they can only provide a very vague picture of the transformer condition. Within a few years, TPC had installed over 1,000 units of this inexpensive online DGA from a world market leader. Over the years, unfortunately, TPC has discovered many problems with their smoke detectors: defective displays, wrong alarms and other failures were daily routine and caused high internal costs.

TPC was therefore looking for a working new online DGA monitoring solution that would also be technically more sophisticated and would search through at least two fault gases. Around the same time MR introduced its MSENSE® DGA3, which provides the following measuring components: hydrogen and carbon monoxide, as well as moisture in oil.

Convinced by these unique advantages, Taiwan Power Company has already purchased more than 200 MSENSE® DGA 3 sensors to replace the competitor’s failed TDCG devices.


Source: MR