Our Projects
Project Overview
Hertz Engineering Limited successfully carried out Site Acceptance Testing (SAT), protection grading, and commissioning for a high-voltage power system. This project was critical in ensuring the safety, reliability, and operational efficiency of the electrical infrastructure, in compliance with industry standards and best practices.
Scope of Work
1. Site Acceptance Testing (SAT):
- Conducted comprehensive pre-commissioning checks to verify equipment functionality.
- Ensured compliance with IEC, IEEE, and local regulatory standards.
- Performed insulation resistance tests, continuity tests, and functional checks on switchgear, transformers, and protection relays.
2. Protection Grading Studies:
- Developed selective protection coordination schemes to prevent unnecessary outages.
- Analyzed relay settings, fault levels, and time-current characteristics to optimize grading.
- Conducted short-circuit studies to enhance system resilience.
3. System Commissioning:
- Verified the correct operation of protection relays under simulated fault conditions.
- Ensured synchronization and proper integration of the system into the power network.
- Conducted final performance testing and handed over a fully operational system.
Challenges and Solutions
- Ensuring Minimal Downtime: Testing was scheduled during low-load periods to avoid operational disruptions.
- Complex Network Coordination: Worked closely with system operators to fine-tune relay settings and eliminate nuisance tripping.
- Safety Compliance: Implemented strict lockout/tagout (LOTO) procedures and real-time monitoring for a safe commissioning process.
Outcome and Impact
- Improved System Protection: Enhanced fault detection and isolation to prevent cascading failures.
- Optimized Power Reliability: Reduced downtime and improved overall network performance.
- Regulatory Compliance: Ensured all protection systems met required safety and operational standards.
Why Choose Hertz Engineering?
Hertz Engineering specializes in power system testing, protection coordination, and commissioning services, ensuring safe, efficient, and compliant electrical infrastructure. Our expertise in high-voltage systems and protection grading makes us the trusted choice for industries requiring robust power solutions.







