Comprehensive, scheduled electrical O&M programmes that minimise unplanned downtime, extend asset life, and keep your facility compliant, efficient, and safe — year after year.
What is O&M?
Operation and Maintenance (O&M) refers to the structured, ongoing management of electrical systems and equipment to ensure they function at designed capacity — safely, efficiently, and in compliance with regulatory requirements. Without a disciplined O&M programme, even the most carefully designed electrical installation will degrade prematurely, become a safety hazard, or suffer unexpected failures that shut down operations at the worst possible moment.
At Enervia Engineering Services, our O&M offerings are built around a proven preventive-first philosophy. Rather than waiting for breakdowns to occur, we deploy systematic inspection, testing, and servicing schedules that detect early warning signs, correct minor issues before they escalate, and keep every component — from HT panels and transformers to LT switchgear and earthing systems — in optimal working order.
We serve industrial plants, manufacturing facilities, commercial buildings, data centres, hospitals, and infrastructure installations across Tamil Nadu, providing both standalone periodic maintenance contracts and fully managed, long-term O&M partnerships tailored to the scale and criticality of each client's operation.
Scope of Work
A complete lifecycle approach to electrical system reliability — from routine inspections to emergency support.
Scheduled visual inspections, insulation resistance (IR) testing, earth continuity checks, and thermal imaging to catch developing faults before failure.
Cleaning, tightening, contact resistance measurement, relay calibration, and functional testing of all main and sub-distribution panels including bus duct systems.
Oil sampling and BDV testing, tap changer maintenance, Buchholz relay checks, cooling system inspection, and termination re-torquing for distribution and power transformers.
Winding resistance testing, insulation checks, bearing condition monitoring, VFD parameter verification, and lubrication for all critical rotating machinery.
Earth electrode resistance measurement, conductor integrity inspection, bonding verification, and earthpit maintenance to ensure safe fault current dissipation.
Megger testing of feeder and distribution cables, identification of hot joints via thermal imaging, tray condition assessment, and cable labelling updates.
Secondary injection testing, coordination verification, and setting review for overcurrent, earth fault, differential, and under/over-voltage protection relays.
Battery bank capacity testing, cell voltage measurement, electrolyte checks, UPS bypass operation testing, and charger output verification.
Detailed inspection reports, deficiency registers, maintenance schedules, compliance records, and recommendations — maintaining a complete audit trail for your facility.
Why It Matters
Preventive maintenance identifies failing components weeks or months before they cause a breakdown, protecting production continuity and revenue.
Well-maintained electrical equipment regularly outlasts its design life by 20–40%, delivering superior return on your capital expenditure.
Documented O&M records satisfy TANGEDCO, CEA, and IS/IEC requirements, and are often required by factory inspectors and insurance underwriters.
Loose connections, poor power factor, and degraded contacts cause significant energy losses. O&M corrects these, directly reducing your electricity bill.
Regular testing eliminates latent electrical hazards such as insulation failure, overheating, and faulty earthing that can cause fires, electrocution, or equipment explosions.
Annual maintenance contracts convert unpredictable emergency repair costs into a fixed, planned expenditure — making financial forecasting far more accurate.
Our Contracts
Flexible programmes structured around your operational requirements and risk profile.
Quarterly / Half-Yearly / Annual Visits
12-Month Comprehensive Coverage
Long-Term Facility Management
How We Work
A structured five-stage methodology that ensures nothing is missed and every visit delivers measurable value.
Target Clients
If you operate electrical equipment of any scale, a structured maintenance programme is not optional — it is essential.
Production facilities where electrical downtime directly translates to lost output, delayed schedules, and contractual penalties.
Office complexes, shopping malls, and tech parks where power reliability is non-negotiable for tenant satisfaction and safety.
Critical care environments where electrical failure is life-threatening — requiring the highest standard of proactive maintenance and emergency readiness.
24×7 operations with zero-tolerance for outages — where every UPS, transformer, and switchgear item must perform flawlessly on demand.
Large residential complexes and gated communities requiring regular common-area electrical maintenance and safety compliance.
Solar plants, captive generation units, and HT connected installations requiring periodic grid-side and plant-side electrical maintenance.
Large distribution centres with complex electrical infrastructure serving automated conveyors, HVAC, fire systems, and lighting loads.
Schools, colleges, and government institutions with ageing electrical infrastructure in need of regular upkeep and modernisation support.
What You Receive
Every Enervia maintenance engagement is backed by structured documentation and transparent reporting.
Detailed report for every maintenance visit — including test readings, photographic evidence, observations, and action items with priority classification.
A live register tracking all observed deficiencies, remediation responsibility, target closure dates, and status updates across the contract period.
Pre-agreed calendar of all planned maintenance visits, test activities, and inspection windows aligned with your facility's operational calendar.
Infrared thermographic reports identifying hotspots, loose connections, and overloaded circuits that are invisible to the naked eye.
End-of-year consolidated report covering all maintenance activities completed, test trend analysis, equipment health status, and recommendations for the next period.
Supporting documentation suitable for statutory inspections, insurance renewals, CEA compliance, and internal safety audits.
Get Started Today
Contact us for a site assessment and customised O&M proposal. We will evaluate your facility, recommend the right contract level, and get your maintenance programme on track.