Low Voltage

Fixed Capacitor Banks

Specifications

Best For: Individual motor loads or constant load transformers.
Function: Connected directly to the terminals of inductive loads to provide localized reactive power, preventing it from being drawn from the utility.
Key Specs: 240V to 600V; UL-listed cells with pressure-sensitive interrupters (PSI).

Low Voltage

Automatic Capacitor Banks

Specifications

Best For: Facilities with fluctuating electrical loads.
Function: Feature advanced controllers that sense real-time load changes and switch capacitor steps in or out to maintain a precise target power factor.
Key Specs: NEMA 1, 3R, or 12 enclosures; multi-step digital controllers; current-limiting fuses on all phases.

Medium Voltage

Fixed Capacitor Banks

Specifications

Best For: Individual large motor compensation and constant-load transformers.
Function: Provides a continuous source of kVAR at the load to reduce utility demand charges and system heat losses.
Key Specs: NEMA 3R enclosure; internal/external fusing options; low-loss film/foil design.

Medium Voltage

Multi-Step Capacitor Banks

Specifications

Best For: Industrial plants with shifting loads and utilities requiring precise VAR control.
Function: Automatically senses load changes and switches capacitor steps via vacuum contactors to maintain high efficiency.
Key Specs: 2.4kV–38kV; Microprocessor-based VAR controllers; Vacuum switching technology.

Medium Voltage

Pad-Mounted Capacitor Equipment

Specifications

Best For: Hospitals, university campuses, and commercial underground networks.
Function: Provides localized power factor correction in a tamper-resistant, aesthetically discrete cabinet.
Key Specs: 5kV–35kV; Tamper-proof NEMA 3R; Dead-front safety configuration.

Medium Voltage

Mobile Capacitor Equipment

Specifications

Best For: Temporary substation bypass, seasonal load peaks, and emergency grid support.
Function: Provides rapid-deployment power factor correction for utility maintenance or temporary industrial setups.
Key Specs: DOT-compliant trailers; integrated vacuum breakers; rapid-connect bushings.

Industrial Capacitor Banks & Power Factor Correction Solutions

A Capacitor Bank is an assembly of multiple capacitor units connected in series or parallel, designed to provide reactive power (kVAR) to an electrical system. By improving the Power Factor (PF), these banks reduce the total current drawn from the utility, eliminate monthly “reactive power” penalties, and stabilize system voltage. Controllix Corporation specializes in engineered Low Voltage and Medium Voltage capacitor banks that enhance grid reliability and maximize transformer capacity for industrial, utility, and commercial applications.

How Capacitor Banks Optimize Your Electrical System

To understand the value of a capacitor bank, it is essential to understand Reactive Power. Inductive loads—such as motors, transformers, and lighting ballasts—require reactive power to create magnetic fields. When this power is drawn entirely from the utility, your system becomes inefficient.

Key Benefits of Controllix Capacitor Banks:

  1. Eliminate Utility Penalties: Most utilities charge a “Demand Penalty” if your power factor falls below 0.90 or 0.95. Capacitor banks bring this back to near-unity (1.0).
  2. Improve Voltage Regulation: Reducing the current load prevents voltage drops at the end of long distribution lines.
  3. Reduce System Losses: Lower current means less heat (I2R loss) in your cables and transformers.
  4. Release System Capacity: By supplying kVAR locally, you free up “trapped” kVA in your existing transformers, allowing you to add more load without upgrading infrastructure.

Frequently Asked Questions

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