Trantech
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About the Company
Trantech Radiator Products, Inc. was founded in 1932 in Lansing, Michigan and was relocated to occupy 126,000 square feet of manufacturing space in historical Edgefield, South Carolina in 1970.
Trantech is the most customer-oriented and largest manufacturer of transformer radiators in North America. Trantech offers engineering, or re-engineering, for any type of transformer cooling system solution internationally. They provide cooling products and services to a wide range of global industries including transformer manufacturers, fossil fuel and nuclear power generating facilities, as well as petrochemical sites.
Advantages
Over 55 years serving the transformer industry with quality, reliable products
Shortest manufacturing cycle times
in the industry, providing the best lead-times available
Extraordinary Emergency Response
to natural disasters, unplanned outages due to hardware failures
All Trantech radiators are 100% leak tested
Hands-on, proactive engineering services provided
ISO 9001: 2015 certified for complete customer satisfaction
Product Range
Integrated Header Radiators
Plate Width: 9-15”
Mounting: 21-70”
Number of plates: 1-13
Welded Header Radiators
Plate Width: 12-15”, 20.5”, E4
Header OD: 3.5-5”
Mounting 40-180”
Number of plates: 1-46
Coolers
Accommodate OFAF Transformers 63-400kW
IP-55 weatherproof
Low noise rating
Valves
Designed to withstand more 25psi+ and full vacuum
All parts are contained within the body
Pumps
Low maintenance
Centrifugal/axial flow designs
Works in extreme conditions
Flow indicators
Simple and robust
Shockproof
Works in extreme conditions
Fans
Complete fan and fan control packages
Krenz and PX3 fans
Custom mounting kits
Control Panels
Fully customized to the cooler and customer specifications
Reference projects
A large Southeastern utility company needed to replace the water coolers at an aging electric generating plant. Built in 1948, the plant’s six identical Westinghouse Generator Step-Up power transformers were fully operational, with all active parts still in very good condition. The twin water coolers attached to each unit, however, did not hold up as well. Over time, parts on the coolers had oxidized and began leaking.
Trantech engineers worked with the utility’s engineering group to develop a complete custom cooling solution. The system, consisting of two manifolds and seven Trantech radiators, replaced the entire water-cooled system without the pumps and other machinery typically needed with coolers.
During the Kennecott Radiator Retrofit the onsite power generation station and the 90-MVA Moloney electric transformer, built in 1958, were installed halfway up the mountain slopes. With continuous load growth, the transformer was operating well above the nameplate recommendations. The single 5-hp oil pump and the three 1-hp fans on each of the four traditional oil coolers were not providing adequate cooling. After considerable dialogue, Trantech designed a radiator cooling system with no fouling risks.
The coal fired generation plant has a 128MVA transformer rated to operate with a top oil temperature of 65°C. The coolers on the transformer had corroded and were leaking oil. The drip pan was continuously filling up and the oil level in the transformer would quickly drop to make the transformer non-operational. Due to the age and extent of the corrosion, the coolers were beyond the scope of repair and had to be replaced. After several discussions with the utility and a site visit, the new coolers were built and shipped to the generation plant.
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