HT/LT Engineering
Electrical Maintenance
Specialized electrical maintenance covering 33kV furnace transformers, OLTC, RTCC, PLC/thyristor electrode regulation systems, switchgears, VFDs, and SCADA automation.
Maintenance & Engineering Scope
33kV Transformer & Switchgear
- Furnace Transformer (33kV to 80-200V) maintenance
- OLTC (On-Load Tap Changer) & RTCC panels testing
- CT/PT, HT/LT switchgear overhauling
- Capacitor banks maintenance for Power Factor correction (0.78 PF target)
Electrode Regulation & Automation
- Thyristor / PLC-based automatic electrode regulation system
- Hydraulic power pack controls & electrode hoist motor starters
- Temperature, level, pressure, and position sensors calibration
- Furnace SCADA / DCS logic backup and updates
Preventive Electrical Testing
- MonthlyIR thermography of HT/LT panels
- QuarterlyTransformer oil Breakdown Voltage (BDV) & DGA testing
- Half-YearlyEarth pit resistance measurement
- AnnuallyProtection relay calibration & testing
Advanced Condition Monitoring
- Vibration analysis of ID fan motors
- Motor Current Signature Analysis (MCSA) for HT motors
- Tan-Delta testing of HT cables