Power Factor Replacement in Central London
Central London Offices – PFC System Replacement
At PFC Engineering, we recently completed a comprehensive power factor correction (PFC) upgrade for a large office building in central London, replacing ageing components with a modern, high-performance solution.
Project Overview
The existing PFC system had reached the end of its service life, with original capacitors and 210Hz detuned reactors no longer providing reliable performance. To restore efficiency and ensure long-term stability, a full strip-out and rebuild was carried out. Prior to the repairs a load analysis determined that only half of the capacitors in each unit would be required to reach a healthy power factor of >0.95 inductive
Our Solution
Our engineers removed all the original capacitor banks and 210hZ reactors and installed a new system using high-quality components from Frako, including:
- Frako 50kVar AM tray capacitor assemblies (480V rated)
- 189Hz detuned reactors
This upgrade improves harmonic filtering, reduces system stress, and enhances overall power quality across the installation.
Delivery
The project was completed by a two-engineer team over a two-day period. Careful planning and on-site coordination ensured the works were delivered efficiently with minimal disruption to the building’s daily operations.
The Result
The upgraded PFC system now provides:
- Improved power factor and energy efficiency
- Increased reliability and lifespan of electrical infrastructure
- A future-proofed solution aligned with modern load demands
