MAIN SERVICES

Transformer check
Analysis and diagnosis of the machineries insulated by dielectric fluids.

Oil trasfoservice
Assistance on site for treatment and replacement of the dielectric fluid and small electromechanical repairs.

Active service
Review, changes and repairs of transformers of Medium and High voltage in our specialized workshop. Small works of maintenance on demand.

Eco service
Revamping of transformers polluted by PCB < 1000 ppm in accordance with the “Authorization of the Lombardy Region”.

Electric check
Electrical tests on site:

• measurement of the short-circuit stiffness;
• measurement of the withstand of insulation;
• measurement of the windings resistance;
• measurement of the transformation ratio.

Why we need to check transformers?
4 good reasons

for preventing the breakdowns
for planning intervantions and priorities
for using the equipment properly
for fulfilling the required laws and rules


LAW AND RULES

Law reference

• DPR 547/55 ART.267 - Prevention of fire on the electrical equipment
• LAW 186/ 68 ART. 1 - Workmanlike
• DPR 216/ 88 ART.4 - Equipment with PCB > 100 mg/kg
• CIRC.REG. LOMBARDY - Electrical equipment checking
• PROT.N. 145173 DEL. 24/7/ 91
• DMS 29/07/ 1994 ART. 2 - Equipment with PCB > 50 mg/kg
• D.Leg 626/94 ART. 3 - Elimination or reduction of the risks
• D. Leg 209/ 99 ART.5 - Compliance with the dielectric quality
• DMA 11/10/ 2001 - Terms of use of transformers with PCB

ACTIVE SERVICE

Inspections on-site for the check of:

• BUCHHOLZ RELAY
• DIAL THERMOMETER
• THERMOSTATS
• OVERPRESSURE VALVES
• RIGHT WORKING OF ON-LOAD TAPCHANGER
• FORCED COOLING SYSTEMS

Assistance at the end user:

• REWIRING OF THE AUXILIARY SYSTEMS
• REMOVING OF OIL LEAKS
• MOUNTING OF FORCED COOLING BARS
• REPLACEMENT OF SPECIAL PARTS ON SITE

Assistance at MF:

• DISASSEMBLING, TRANSPORTATION, OVERHAUL OR CHANGES AND REPAIRS
• TESTING AND FREIGHT WITH INSTALLATION