Transformateurs de puissance 6MVA
Redresseur
Armoire de commutation 25kV
Photo infrarouge
Conception et fabrication de raccords
Transformateur de puissance 6MVA
Transformateur de puissance
Vérification de thyristor
(English) Industrial battery charger
Banque de condensateurs
(English) Disjoncteur avant remise à neuf
Relais de protection
Projet de modernisation de panneaux de protections (Avant)
Disjoncteur après remise à neuf
(English) Wave quality measurements
Sectionneurs 120kV
Mesure de résistance de contact et d'isolement
Disjoncteur de puissance 120kV
Analyse de courbes de protection
Transformateur de puissance 46MVA
Modernisation de tiroirs pour redresseur
(English) Busbar manufacturing
Essai par injection primaire
Modernisation de carte de contrôle pour redresseur
Inspection par thermographie
Unité de services mobile
Transformateur de puissance 6MVA
(English) Protection panel upgrade (After)

Field services - Mobile filtering equipment

Insulation degrading is the prime factor in transformer aging. Maintenance and insulating oil treatment play a crucial role  in order to prevent aging and various breakdowns.

MDL Énergie inc. has a mobile filtering unit that may be used to treat the insulating oil in order to prevent latent defects. In fact, electrical arcing in the oil when the transformer is energized, can produce chemical reactions which can degrade the insulating oil dielectric quality and thereby damage internal components.

The mobile filtering unit can be used to perform the following operations:

Degassing
Electric arcing in the oil can result in various chemical reactions that will produce gas.

Degassing technique allows to remove the dissolved gas.

Dehydrating
The presence of a large concentration of water particles in the oil will reduce the dielectric strength which can result in short-circuits that will cause irreversible damages to the transformer.

Dehydration technique allows to remove water particles resulting from cellulose degradation.

Filtering
Numerous phenomenon, including cellulose degradation, can produce solid particles within the transformer insulating oil.

Filtering technique allows to remove all solid particles present in the insulating oil.

Mobile services units
Mobile services units