Transec Electric
Transec's business focuse on the reliability of transformers – continuously removing water from the insulating oil of a power transformer.
Transec Electric story
Transec Electric is the new name for Transec UK Ltd. which was established over 15 years ago and since 2004 Transec has managed over 3350 Transformer On-Line Molecular Sieve Drying System projects worldwide.

Transec has supplied to over 20 countries including UK, China, India, Germany, South Korea, Australia, Saudi Arabia and Russia. UK installations have included UKPN, National Grid, SSE, Scottish Power, EDF Energy UK, EON, WPD and NPG.

Transec Electric Limited will continue to manufacture, support and develop Transformer On-Line Molecular Sieve Drying Systems and Services from its base in Haverhill, Suffolk., UK.

About technology
Since the beginning, Transec's business has been focused on the reliability of transformers, with one of the most important features – continuously removing water from the insulating oil of a power transformer.

Why is it so important?
Power and distribution transformers are some of the most important and expensive assets in a power network. Compared to other equipment, they are very reliable and require very little maintenance since they have no continuously moving parts. However, the insulating materials, being organic, degrade with time in service, and ultimately determine the end of life of the transformer.
In a poorly maintained free breathing transformer water can enter through the natural expansion and contraction of oil as the temperature cycles, but also water is a by-product of the breakdown of the long chain hydro- carbon glucose molecule, as a result of thermal and electrical stress. This leads to degradation of the organic insulation materials as the transformer ages.
Excessive moisture will saturate the insulation and increase its conductivity. At higher temperatures, vapour or free moisture can develop increasing the risk of partial discharge.
TRANSEC is an online molecular sieve, developed and manufactured in the U.K. that is designed to continuously remove water from the insulating oil of a power transformer. As the ppm level in the oil is reduced, water from the solid insulation (where over 95% of the water will accumulate) will migrate from the insulation into the oil to redress the natural equilibrium. This process not only reduces ageing, but will improve the dielectric strength of the insulation, and increase reliability.
Products

• high capacity for moisture extraction (12 litre)
• for transformer >10 MVA
• long operation duration without maintenance
• in frame or in cabinet
• measuring and monitoring module available

CL3A

• low weight, easy to move
• for transformer <10 MVA
• cost effective and flexible to operate on different transformer
• measuring and monitoring module available

CL1A
Products

• high capacity for moisture extraction (12 litre)
• for transformer >10 MVA
• long operation duration without maintenance
• in frame or in cabinet
• measuring and monitoring module available

CL3A

• low weight, easy to move
• for transformer <10 MVA
• cost effective and flexible to operate on different transformer
• measuring and monitoring module available

CL1A
General characteristics
Technical characteristics
Experience
2076 units installed
22 countries
End user business profile
Cylinder regeneration

TRANSEC cylinders can typically extract between 3 to 4 liters of water. The extraction speed is directly linked to the amount of water available in the transformer. The more water is available and the warmer the oil is, faster the extraction will be. You can find typical saturation time below.
The cylinder saturation can be determined either by the TRANSEC monitoring system or by comparing water PPM in 2 oil samples (inlet & outlet).
Saturated cylinders can be removed and replaced online by new ones within 30 min. A stock of ready cylinders is always available locally with our partners.


Installation
Installation
Last install
In February 2019, Streamer installed Transec system at the Chihuahua III gas power plant located close to Ciudad Juárez, a city almost bordering the United States. Chihuahua III is an important facility of the InterGen Company generating system. Its design capacity is 271 MW, the power plant itself comprises of three units. The plant was put into operation in 2003 and uses natural gas.
Why are we better
Increases life expectancy of Transformers
Drying Transformer continuously during operation
Easy Transformer maintenance without outage
Made on
Tilda