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

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