Job Description

:
Technology Engineering and Manufacturing of Rectifier Thyristor

• Rectifier duty transformers (multi-pulse, phase-shifting, K-factor considerations)
• Thyristor/IGBT-based rectifier systems
• Design cooling systems, insulation class, losses, impedance, and protection schemes.
• Supervise factory acceptance tests (FAT) and site acceptance tests (SAT).
• Testing and commissioning and synchronization with grid/plant electrical systems.

2. Harmonic Management & Power Quality

• Analysed harmonic distortion generated by rectifier loads.
• Design/review harmonic mitigation strategies:
• Passive harmonic filters (tuned, detuned)
• Active harmonic filters (AHF)
• Ensure compliance with IEEE-519 / IEC harmonic limits.
• Monitor power quality parameters during operation and recommend corrective actions.

3. APFC & Reactive Power Control

• Design and review APFC systems to maintain target power factor.
• Ensure coordination between APFC panels and harmonic filters.
• Optimize capacitor bank ratings, detuning reactors, and control logic.
• Troubleshoot frequent tripping, capacitor failures, and resonance issues.

4. Power System Engineering & Design

• Review and validate electrical designs related to:
• Power transformers (step-down, isolation, rectifier duty transformers)
• Rectifier units for electrolysers (AC-DC conversion)
• Harmonic filters (passive/active)
• APFC (Automatic Power Factor Correction) panels
• Ensure compliance with applicable standards (IEC, IEEE, IS, utility/grid codes).
• Perform load calculations, short-circuit studies, harmonic analysis, and power quality studies.
• Coordinate with OEMs, EPC contractors, and consultants during design finalization.

5. Commissioning & Start-up Support
Lead electrical commissioning activities for:

• Transformers
• Rectifier units
• AHF units
• APFC units
• HT & LT packages

Skills Required