LTL Transformers (Pvt) Limited » lanka Transformers Private limited

LTL Transformers (Pvt) Limited

LTL Transformers was established in 1982 as a joint venture of Ceylon Electricity Board, the Power Utility of Sri Lanka and European investors initially to produce an indigenous transformer. The Company’s production line initially developed with an ongoing Technical Collaboration Agreement with ABB AS of Norway and then moved forward with our own technology. Today the Company’s state of the art production facilities manufacture very high quality transformers conforming to international standards and meet the entire Sri Lankan requirement while about 50% of its production are exported.


Over the time the production capacity of oil type transformers expanded to 5MVA Power Transformers including special transformers such as Earthing, Dual Ratio, Isolation, Auto, Rectifier Transformers, Switchgear Panels, Package Substations and a lot of others. The oil type transformers produced by LTL are hermetically sealed and are maintenance-free for life. Currently LTL also offers a full range of dry-type transformers with capacity up to 2.5MVA and primary voltages up to 33kV built according to all major standards including IEC and ANSI.

All transformers are optimized to meet customer satisfaction with regards to energy loss, noise level, dimensions and weight. Precise and thorough quality control before, during and after each stage of the manufacturing process ensures that all LTL products meet the highest international quality standards. LTL Transformers is renowned for their high performance and proven reliability. We offer a full range of after sales services to all our customers to ensure the reliability of our products.

LTL Transformers has obtained ISO 9001 for Quality Management System, 14001 for Environmental Management System and OSHA 18001 for Safety and Health Standards from DNV-Netherlands. In addition Kema Laboratories of Netherlands has certified the product quality for all major transformer types. LTL Transformers has won the National Productivity Award for several years in the recent past.


Product Range

Power & Distribution Transformers:
  • Capacity from 5 kVA up to 5000 kVA for oil type transformers and up to 2500kVA for dry type transformers and up to 2500kVA for dry type transformers
  • Varying voltages up to 33 kV
  • Frequency: 50/60 Hz or as per customer requirements
  • Tap Types: Off Circuit Tap links/Off Circuit Tap Changer/On Load Tap Changer
  • Temperature Rise: as per customer requirements.
  • Silicone/Mineral Oil or other fluids filled Transformers as per customer specifications. Biodegradable oil is also available for environmentally sensitive areas.Dry type transformers for applications where minimizing fire hazard and environmental contamination is salient.
  • Cooling: ONAN / ONAF/AN/ AF
Tank and Cooling and Enclosure designs:
  • Oil immersed  Hermetically Sealed type Transformers with corrugated tanks (fin walls)
  •  Oil immersed Hermetically Sealed type Transformers with gas cushions
  •  Oil immersed Conservator type Transformers with free breathing
  •  Dry type transformers with enclosure rated to IP 21
Compact and Package Substation with Transformer:
  • Oil immersed/dry type Transformers up to 2000kVA ; 33kV
Special Transformers:
  • Rectifier / Converter Duty Transformers
  • Earthing / Grounding Transformers
  • Isolation Transformers
  • Completely Self Protected Transformers
  • Dual Voltage Ratio Transformers
  • Multi Winding Transformers
  • Auto Transformers
  • Low Voltage Air Cooled Transformers
  • Pad Mounted Transformers (Dead Front) as per ANSI standards.
Our Support Services
  • Transportation, Installation, Commissioning and Testing of Power Transformers up to 220 kVA/150 MVA at Power Plants, Grid Substations, etc, together with associated protection and fire fighting systems
  • Oil filtration and oil testing in transformers up to 150 MVA
  • Maintenance of Power Installations in Industrial and Commercial Buildings , Power Utilities, Hospital Complexes and other such institutions under Annual Maintenance Contract or other terms as required by customers
  • Repairs of Distribution Transformers
  • Hiring of transformers for emergency short term requirements as substitutes
  • Branch offices or agents of company located in several countries will readily respond to customers’ inquiries with regard to such services
State of the Art Machinery and Technology

Our continuous investments in acquiring the state of the art technology and machinery has enabled our products to be of highest quality levels while increasing the level of automation in the plant and reducing production lead time as well as cost. With the recent additions of LFH Oven along with core cutting lines and automatic winding machines, LTL is now capable of meeting the highest quality levels expected by any customer. LTL is today, in par with any renowned manufacturer in the world in terms of quality of products and associated technology.Read More..