The load tap changer (LTC) is used for setting of the voltage ratio under full load. It is the most strained equipment of the transformer and it is the main cause of failure of operating transformers. ASLTOM used to make load tap changers over more 40 years under MR’s license.

Since 2002, TSV is responsible for the whole range of services regarding the load tap changers. TSV own the industrial means, the know-how, the historical knowledge and available spare parts which allow them to provide the manufacturer’s after-sales service and the maintenance of the 6000 LTC installed in France and abroad.

A team consisting of a dozen of skilled technicians and engineers is fully devoted to this activity, either run in a specific workshop or on site depending on proposed services.

TSV also provide the full range of services regarding the off-load tap changers.

Services proposed on LTC include the following:

• On-site maintenance
• Preventive maintenance (number of switches)
• Complete maintenance in workshop
• Re-qualification
• Control cubicle upgrade
• Spare parts