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GE Grid Solutions Hydran 201Ti (Mark IV)

From:GE | author:Mr.Chen | Time :2025-05-13 | 63 view: | Share:

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.

Key Benefits

• Continually measures key fault gas to give you an insight into the transformer’s condition

• Choice of gas sensor: traditional “Composite gas” or more basic “Hydrogen only”

• Communicates gas ppm and gas rate of change values remotely to avoid site visits and enable

remote supervision

• Fourth generation of this continuously improved design, with over 25.000 units sold worldwide

Applications

Power Utilities

• Simple and effective solution for less-critical transformers

• Focuses and prioritizes asset replacement strategy

Industrial Plants

• Reduces the risk of process interruption due to power failure

• Minimizes costly production downtime

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