Essential DGA monitoring for transformers

Transformers are key and expensive components of the electrical grid and knowledge of their

health condition is essential to having a reliable network. When a transformer’s insulation system is

overstressed, gases are produced that dissolve in the oil. Dissolved Gas-in-oil Analysis (DGA) is recognized

as the best indicator of developing faults.

The Hydran™ 201Ti is a small and easy to setup continuous Dissolved Gas-in-oil Analysis (DGA) monitor.

It provides the basic information used by IEEE® Standard C57.104 and can be used as an essential first

line of defence for the transformers in your fleet to obtain advance warning of a failure condition and

minimize the risk of an unplanned outage.

The 201Ti uses fuel cell technology (described as fixed instruments – method 3 in the standard) and is

now available with a choice of either the world renown “Hydran Composite Gas” sensor which responds

100% to Hydrogen and is also sensitive to Carbon Monoxide, Acetylene and Ethylene or the more basic

“Hydrogen Only” sensor which focuses purely on Hydrogen gas generation.

Because the monitoring unit mounts on a single valve and uses Dynamic Oil Sampling, there is no need

for a pump or extra piping to connect to different valves. Due to its uncomplicated features and the easily

understood information it provides, the 201Ti has been amongst the monitors of choice for many years,

with one of the largest installed base of any DGA monitor.