Project Scope of Works: Preventive Maintenance of Medium-Voltage Switchgear at a commercial building located at Fairview, Quezon City
You’ve made the investment in quality Medium Voltage equipment, navigated the complex installation process, and everything is up and running smoothly. Now comes the crucial question: how do you keep it that way?
Medium Voltage equipment represents a significant capital investment, and proper maintenance is the key to maximizing its lifespan, ensuring safety, and preventing costly downtime. Here’s your comprehensive guide to keeping MV equipment in top shape.
The Three-Pillar Approach to Medium-Voltage Equipment Longevity
The most effective maintenance strategy is one that prevents problems before they occur. Our comprehensive Preventive Maintenance solution is designed to keep your MV equipment operating reliably year after year. A robust preventive maintenance program should include:
Regular Inspections — Schedule visual inspections monthly and detailed inspections quarterly. Look for signs of overheating, corrosion, loose connections, damaged insulation, unusual sounds or vibrations, and contamination or moisture intrusion.
Thermographic Surveys — Conduct infrared scanning annually or semi-annually to detect hot spots that indicate poor connections, overloading, or deteriorating components before they fail.
Electrical Testing — Perform insulation resistance testing, power factor testing on transformers and circuit breakers, contact resistance measurements, and partial discharge testing to identify deterioration early.
Critical Maintenance Activities
Cleaning and Environmental Control — Keep equipment clean and dry. Dust, dirt, and moisture are enemies of electrical equipment. Maintain proper ventilation and climate control in equipment rooms, use dehumidifiers in humid environments, and regularly clean insulators and bushings.
Lubrication and Mechanical Maintenance — Moving parts in circuit breakers, disconnect switches, and other equipment require regular lubrication according to manufacturer specifications. Check and adjust spring tensions, verify proper operation of mechanical interlocks, and inspect and replace worn mechanical components.
Connection Tightening — Thermal cycling causes connections to loosen over time. Include torque checks of all bolted connections in your maintenance schedule, typically on an annual basis for critical connections.
Oil Analysis — For oil-filled transformers and circuit breakers, regular oil testing is essential. Monitor dissolved gas analysis, dielectric strength, moisture content, and acidity levels to catch developing problems early. Our DGA & Oil Quality Testing service provides detailed analysis to help you understand the health of your oil-filled equipment.
GEMCOR’s Comprehensive Preventive Maintenance and Electrical Solutions
We offer a complete range of specialized services to support every aspect of your Medium Voltage equipment maintenance:
Testing & Commissioning — Ensure your new or upgraded equipment is installed correctly and operates to specifications from day one.
Standard Transformer Testing — Comprehensive testing protocols to verify transformer performance and identify potential issues before they become critical failures.
Protection Relay Testing — Verify that your protective relays are calibrated correctly and will operate as intended during fault conditions.
Power Quality Testing & Analysis — Identify harmonics, voltage fluctuations, and other power quality issues that can degrade equipment performance and shorten lifespan.
DGA & Oil Quality Testing — Advanced dissolved gas analysis and oil testing to monitor the internal condition of oil-filled equipment.
Online Maintenance — Real-time monitoring solutions that provide continuous insight into equipment health, enabling truly predictive maintenance.
Retrofitting — When equipment reaches end-of-life, our retrofitting services can modernize existing installations, extending their useful life and improving performance.
Strengthening GEMCOR’s Service Through Data and Competence
Comprehensive record-keeping — transforms maintenance from reactive to predictive. Document all inspection findings, test results, and trending data, maintenance activities performed, and any abnormalities or corrective actions taken.
This historical data helps you identify patterns, predict failures, and optimize your maintenance schedule over time.
Training and Safety — Even the best maintenance program fails without properly trained personnel. Ensure your team has current training on the specific equipment in your facility, proper PPE, arc flash protection requirements, lockout/tagout procedures, and emergency response protocols.
In addition to our comprehensive service portfolio, we offer reliable MVSG solutions produced in-house. As both the producer and supplier, we are closely involved in ensuring quality and operator safety. Each assembly of equipment undergoes thorough testing before deployment and is continuously monitored during operations to ensure consistent performance and safe use.
GEMCOR’s Specialized Services Beyond Manufacturing Capabilities
While in-house maintenance is important, partnering with specialized service providers brings significant advantages. Our team offers comprehensive MV equipment services, including annual assessments, specialized testing with advanced equipment, major overhauls or refurbishments, and ongoing technical support to help your team succeed.
With services spanning Testing & Commissioning, Preventive Maintenance, Standard Transformer Testing, Protection Relay Testing, Power Quality Analysis, DGA & Oil Quality Testing, Online Maintenance monitoring, and Retrofitting solutions, we provide end-to-end support for your MV infrastructure.
Taking the Next Step
Proper maintenance of MV equipment isn’t just about following a checklist. It’s about developing a culture of vigilance, investing in the right tools and training, and understanding that the cost of maintenance is minimal compared to the cost of failure.
Equipment that’s well-maintained not only lasts longer but also operates more efficiently, improving your overall energy costs and reducing your environmental footprint.
Ready to elevate your maintenance program? Contact GEMCOR today to learn how our comprehensive MV equipment maintenance services from Preventive Maintenance programs to advanced DGA testing and Online Maintenance monitoring, can help you develop a customized maintenance strategy for your facility.
