Introduction
A leading biofuel manufacturing plant in Punjab operates with high electrical loads across critical production systems, including motors, transformers, and process equipment. Ensuring uninterrupted operations is essential, as even minor electrical failures can result in costly downtime and production losses.
To strengthen reliability and adopt a predictive maintenance approach, the plant engaged ELION Technologies & Consulting Pvt. Ltd. to conduct a comprehensive thermography audit. The objective was to identify hidden electrical faults before failure and enhance overall system safety and efficiency.
Audit Process & Methodology
The thermographic inspection was carefully planned and executed to capture accurate and actionable insights.
1. Instruments & Equipment Used
- High-resolution infrared (IR) thermal imaging camera (≤0.05°C sensitivity)
- Temperature range capability: up to 650°C
- Laser targeting and auto-focus for precision measurement
- Image analysis software for thermal pattern interpretation
2. Areas Covered
The audit included inspection of all critical electrical and mechanical assets:
- LT & HT switchgear panels
- Distribution boards and MCC panels
- Transformers and busbars
- Motors and motor terminals
- Cable joints and terminations
3. Scanning Procedure
- Inspection conducted under normal operating load conditions
- Thermal images captured from safe distances using non-contact IR scanning
- Load conditions and ambient temperature recorded for accuracy
- Comparative analysis performed between similar equipment
4. Environmental Conditions
- Ambient temperature and humidity documented
- Reflected temperature adjustments applied
- Emissivity values set based on material type
5. Standards Referenced
- IS 13364 – Thermographic inspection of electrical installations
- NFPA 70B – Recommended practice for electrical equipment maintenance
Hotspot Findings & Analysis
The audit identified multiple hotspots indicating potential failures. A summary is provided below:
| Equipment | Measured Temp (°C) | Permissible Limit (°C) | Deviation | Identified Issue | Recommended Action |
|---|---|---|---|---|---|
| LT Panel Busbar | 92°C | 70°C | +22°C | Loose connection | Tightening & re-termination |
| Transformer Bushing | 105°C | 85°C | +20°C | Overloading | Load balancing |
| MCC Panel Feeder | 88°C | 65°C | +23°C | Cable insulation stress | Cable replacement |
| Motor Terminal | 95°C | 75°C | +20°C | High resistance joint | Terminal cleaning & tightening |
| Cable Joint | 110°C | 90°C | +20°C | Insulation degradation | Joint rework and insulation repair |
Key Observations
- Majority of hotspots were due to loose connections and overloading
- Early-stage insulation degradation detected in critical feeders
- Several issues were not visible through routine inspections
Benefits & Savings Achieved
Implementation of corrective actions resulted in measurable operational improvements:
- Reduced unplanned downtime by ~30%
- Maintenance cost savings of 15–20% annually
- Improved equipment life by 20–25%
- Enhanced electrical safety and compliance
- Increased reliability of production processes
Testimonial
“The thermography audit by ELION helped us identify critical issues that were completely invisible during routine checks. Their insights enabled us to prevent major breakdowns and significantly improve system reliability.”
— Maintenance Manager, Biofuel Plant
Why ELION for Thermography Audits
- Certified and trained thermographers with industry experience
- Advanced IR diagnostic tools and reporting systems
- Expertise across industries including biofuel, manufacturing, and utilities
- Compliance with Indian and international standards
- Actionable reports with clear prioritization and ROI insights
Conclusion & Next Steps
Thermography audits are a vital component of predictive maintenance, helping industries detect failures before they occur. For this biofuel plant, the audit not only enhanced safety but also delivered tangible cost and performance benefits.
If you are looking to improve reliability, reduce downtime, and ensure compliance, it’s time to adopt thermographic inspection as part of your maintenance strategy.
👉 Schedule your Thermography Audit with ELION today
- Explore our Thermography Audit Services
- Learn more about Predictive Maintenance Solutions
- Check our Electrical Safety Audit Services