Transformer Maintenance & AMC — preventive, predictive & 24/7 SLA support.
Prevent sudden factory blackouts and expensive equipment burnout. TransfoLine’s Annual Maintenance Contracts (AMC) deliver structured preventive, predictive, and condition-based monitoring programs backed by 24-hour on-site emergency mobile vans across Pakistan.
Engineered for absolute industrial reliability.
TransfoLine brings 18+ years of field engineering and 500+ completed substations across Pakistan.
Comprehensive technical execution scope.
Routine Substation Care
Monthly/quarterly silica gel breather regeneration, oil level top-up, bushing cleaning, gasket leak sealing, and earthing pit resistance measurement (≤ 1Ω).
Preventive Electrical Testing
5kV/10kV motorized Megger insulation resistance, Polarization Index (PI), Kelvin 4-wire DC winding resistance, and turns ratio (TTR) verification.
Predictive Oil & Thermal Scans
Automated oil dielectric Breakdown Voltage (BDV) per IEC 60156, laboratory Dissolved Gas Analysis (DGA), and FLIR full-load thermography.
On-Site High-Vacuum Dehydration
Mobile trailer-mounted vacuum oil filtration restoring BDV ≥ 65kV, eliminating moisture, and degassing active hydrocarbon fault gases on-site.
From concept to energized power.
A systematic 4-step engineering roadmap delivering transparent timelines and guaranteed performance.
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01
Quarter 1
Comprehensive Baseline Audit
Complete multi-point diagnostic testing of your transformer, switchgear, and earth pit with a certified baseline report.
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02
Quarter 2
Live Thermal & Load Scan
FLIR infrared thermography inspection during peak production load to detect loose busbar lugs and bushing hot spots.
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03
Quarter 3
Mid-Year Oil Health Check
Oil sample extraction and BDV testing; immediate mobile vacuum dehydration if dielectric strength drops below 40kV.
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04
Quarter 4
Annual Overhaul & Servicing
Protection relay calibration, VCB contact dressing, terminal retightening, and comprehensive winter/summer readiness audit.
Frequently asked questions.
Common questions about this service. Call our engineering team for anything else.
AMC COVERAGE What is included in a TransfoLine Transformer AMC contract?
Our AMC plans include periodic on-site health inspections, 5kV Megger insulation testing, oil BDV analysis, FLIR infrared thermal imaging, silica gel breather maintenance, HT VCB contact cleaning, earth pit testing, and 24/7 priority emergency response with standby transformer availability.
PREDICTION How does predictive maintenance prevent transformer explosions?
Predictive maintenance identifies defects (like rising combustible gases in oil, micro-void partial discharges, or overheating bushing lugs) months before they cause a short-circuit flashover. Fixing a loose lug or filtering wet oil costs 95% less than replacing a blown transformer.
RESPONSE What is TransfoLine's emergency response time for AMC clients in Pakistan?
For Platinum AMC clients, we guarantee a 2-hour phone consultation and on-site diagnostic van mobilization within 12 to 24 hours across Lahore, Karachi, Faisalabad, Gujranwala, Multan, Rawalpindi, and surrounding industrial hubs.
Request a proposal in minutes.
Tell us your project requirements. Our senior electrical engineers reply within two hours, Monday to Saturday.