Mastery Engineering Private Limited

Mastery Engineering Private Limited The foremost choice for Electrical Engineering Projects and Solutions .

🚧 **11 kV Switchgear Commissioning **We are pleased to announce the successful completion of the 11 kV Switchgear Commis...
01/08/2026

🚧 **11 kV Switchgear Commissioning **

We are pleased to announce the successful completion of the 11 kV Switchgear Commissioning in Ambathale, Sri Lanka.

Our team successfully carried out comprehensive testing, configuration, commissioning, and verification activities to ensure the reliability, safety, and operational readiness of the MV switchgear system.

**Scope of Work:**
✅ Protection Relay Configuration
✅ Protection Relay Testing with Secondary Injection
✅ Functional Testing of 11 kV Vacuum Circuit Breakers (VCBs) and Switchgear Panels
✅ Insulation Resistance Testing of MV Panels
✅ Contact Resistance Measurement
✅ Panel Earthing Resistance Testing
✅ Interlock Checking and Verification
✅ Operation & Maintenance Training

📩 For inquiries: [email protected]

🌐 Visit us: www.masteryengineering.com

Project Completion AnnouncementWe are proud to announce the successful completion of the Medium Voltage (MV) Balance of ...
18/07/2026

Project Completion Announcement

We are proud to announce the successful completion of the Medium Voltage (MV) Balance of Plant (BoP) System for a Solar Ground-Mounted Power Plant in Trincomalee, Sri Lanka.

Scope of Work:
🔹 Installation of 2 × 33kV/800V Station Service Transformers (STS), including complete earthing system.
🔹 Supply and installation of Residual Voltage Transformer (RVT) and CT/PT Unit.
🔹 Supply and installation of 33kV MV Gantry with DDLOs and Surge Arresters.
🔹 Supply and installation of Outdoor Vacuum Circuit Breaker (OVCB).
🔹 Supply and installation of Protection Relay Panel for utility grid interconnection.
🔹 Excavation, laying, backfilling, and termination of approximately 4 km of AC and MV power cables.
🔹 Comprehensive testing and commissioning in full compliance with utility requirements.

This project reflects Mastery Engineering's commitment to delivering reliable, high-quality engineering solutions for Sri Lanka's growing renewable energy sector.

📩 For inquiries: [email protected]
🌐 Visit us: www.masteryengineering.com

Project Completion | Manufacturing Facility – PuttalamWe are pleased to announce the successful completion of a critical...
12/07/2026

Project Completion | Manufacturing Facility – Puttalam

We are pleased to announce the successful completion of a critical shutdown electrical installation project at a leading manufacturing facility in Puttalam.

Our scope of work included:

LV panel installation, testing, and commissioning
Supply and installation of the cable management system
Supply, laying, and termination of control cables

This project demonstrates our ability to execute complex electrical works safely, efficiently, and within a strict shutdown schedule, minimizing operational downtime for our client.

📩 For inquiries: [email protected]
🌐 Visit us: www.masteryengineering.com

Wishing you a peaceful Vesak!!!
30/05/2026

Wishing you a peaceful Vesak!!!

We are pleased to announce the successful completion of the Commissioning of the 33kV Distribution System at a new Manuf...
24/05/2026

We are pleased to announce the successful completion of the Commissioning of the 33kV Distribution System at a new Manufacturing facility in Koggala.

Our scope of work included:

⚡ MV Switchgear Panel Testing & Commissioning
• Protection relay setup and configuration
• Functional testing and system verification

⚡ Testing & Commissioning of 2 MVA, 33/0.415 kV Transformer
• Pre-commissioning tests and inspections
• Operational and protection checks

This project reflects our continued commitment to delivering reliable, safe, and high-quality power engineering solutions.

📩 For inquiries: [email protected]

🌐 Visit us: www.masteryengineering.com

Thank you for your continued support, partnership, and trust inspire us to keep delivering excellence every day…
14/05/2026

Thank you for your continued support, partnership, and trust inspire us to keep delivering excellence every day…

🚧 Project Completion – MV Panel Installation & Commissioning ⚡Proud to share the successful installation and commissioni...
02/05/2026

🚧 Project Completion – MV Panel Installation & Commissioning ⚡

Proud to share the successful installation and commissioning of a Medium Voltage (MV) panel system, executed with precision and strong teamwork.

🔧 Scope of Work
• MV panel installation and positioning.
• Laying & termination of incoming/outgoing cables.
• Protection relay setup and configuration.
• Testing & commissioning.
📩 For inquiries, contact us at: [email protected]

🌐 Visit us: www.masteryengineering.com



ඔබ සැමට සාමය සතුට පිරි සුභ නව වසරක් වේවා!!!
14/04/2026

ඔබ සැමට සාමය සතුට පිරි සුභ නව වසරක් වේවා!!!

Happy Easter Everyone!!!!
04/04/2026

Happy Easter Everyone!!!!

✅ Project Completion AnnouncementWe are glad to announce the successful completion of the Medium Voltage Transformers re...
28/03/2026

✅ Project Completion Announcement

We are glad to announce the successful completion of the Medium Voltage Transformers replacement at Trincomalee.

Scope of Work Included:
🔹 Replacement of MV Transfomers
🔹 Supply and Installation of MV Termination kits.
🔹 Comprehensive Testing & Commissioning.

📩 For inquiries, contact us at: [email protected]

🌐 Visit us: www.masteryengineering.com



Address

52 B, Ettompolawatta Road
Wattala
11300

Opening Hours

Monday 08:00 - 17:00
Tuesday 08:00 - 17:00
Wednesday 08:00 - 17:00
Thursday 08:00 - 17:00
Friday 08:00 - 17:00

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