Troubleshooting and repairing a 2500KVA power transformer, ensuring the fastest restoration of production power for Mitac Computer.
Project Introduction
When the main 2500KVA transformer at Mitac Computer failed, all production activities came to a halt. Manh Cuong quickly arrived for survey, diagnosis, and proposed a repair and restoration plan instead of replacement, saving the client significant cost and time.
System Role and Function
The 2500KVA transformer is the heart of the factory's electrical system:
- Converting medium voltage to low voltage for production use.
- Ensuring power capacity for large-scale servers and computer systems.
- Isolating and protecting the low-voltage system from grid disturbances.
Detailed Construction Items
Deep technical processing steps:
- Surveying, measuring insulation resistance, and testing transformer oil to identify the cause.
- Ensuring power capacity for large-scale servers and computer systems.
- Cleaning and maintaining the tap changer and bushing insulators.
- Repairing or replacing protection devices (Buchholz relay, thermometer, silica gel breather).
Advanced Technical Solutions
We applied vacuum circulation oil filtration technology to completely remove moisture and impurities, restoring dielectric strength to standards. After repair, the transformer underwent rigorous testing equivalent to a new machine before energizing.
Standardized Execution Process
Emergency response and repair process:
- Step 1: Receiving information, arriving on-site within 2 hours.
- Step 2: Performing diagnostic measurements and reporting the fault status.
- Step 3: Deploying specialized team and equipment for on-site or workshop repair.
- Step 4: Post-repair testing (Winding resistance, turns ratio, oil strength).
- Step 5: Supporting energizing, monitoring operation, and handover.
Project Highlights
Actual results achieved:
- Rapid production restoration, minimizing losses due to downtime.
- Saving 60% of the cost compared to the new transformer replacement option.
- Extending equipment lifespan through specialized maintenance.
- Warranty commitment after repair, providing absolute peace of mind for the client.
