APFC Solutions

HT APFC Panel

High Tension Automatic Power Factor Correction Panel

Product Overview

The HT APFC Panel (High Tension Automatic Power Factor Correction Panel) is designed for medium and high voltage systems ranging from 3.3kV, 6.6kV, 11kV, 22kV and 33kV. Domain Powers engineers HT APFC panels to provide centralized reactive power compensation at the transformer or feeder level, ensuring stable power factor up to 0.99, reduced maximum demand and improved grid performance. Built for large industrial plants, utilities and infrastructure projects, our HT APFC panels are engineered with robust switching systems, heavy-duty capacitor banks and advanced protection schemes suitable for high voltage applications.

Key Features

  • Centralized Reactive power Compensation
  • Vacuum Contactor / Circuit Breaker Switching
  • Heavy Duty HT Capacitor Banks
  • Protection Interlocks
  • Intelligent PF Controller
  • Automatic Step Control

Technical Highlights

Heavy-duty, internally fused or externally fused capacitor units designed for medium voltage applications
HT APFC panels use vacuum contactors or vacuum circuit breakers (VCB) for reliable and safe capacitor switching
Advanced Protection System including Overcurrent, Overvoltage, and Neutral Unbalance protection
Microprocessor-based controller with programmable set points to maintain desired PF automatically
Harmonic Filtering / Detuned Configuration to prevent resonance and capacitor stress

Product Benefits

  • Maintains stable power factor up to 0.99 at HT level
  • Eliminates power factor penalties from utility
  • Reduces maximum demand (kVA) at grid connection point
  • Improves transformer loading capacity
  • Reduces I²R losses in HT feeders
  • Enhances voltage regulation across plant
  • Increases overall electrical system efficiency
  • Provides long-term reliability in heavy industrial environments

Industrial Applications

Large manufacturing plants & steel rolling mills
Cement plants & mining operations
Oil & gas facilities
Power generation plants & utility substations
Infrastructure projects (Metro, Airports)
Large water pumping stations (WTP, Sewage)
Industrial parks and SEZs

Technical FAQs

What is an HT APFC Panel?

An HT APFC Panel is a High Tension Automatic Power Factor Correction system used at 11kV or 33kV levels to improve power factor and reduce reactive power demand.

Why use HT APFC instead of LT APFC?

HT APFC corrects power factor at the source (transformer or feeder level), reducing current flow in the entire distribution system and improving overall plant efficiency.

Ready to Optimize your Power Quality?

Consult with our engineers to find the ideal HT APFC Panel configuration for your load profile.

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