Technical Data
Comprehensive Engineering Specifications and Performance Metrics for Power Quality Systems.
Technical Power Quality Data & Engineering Resources
Comprehensive guides, specifications, and case studies for capacitor banks and harmonic filters.
Welcome to the Controllix Technical Resource Center. This repository provides in-depth engineering data, schematics, and performance tables designed for utility operators, industrial plant engineers, and electrical consultants. Whether you are calculating voltage drop or specifying equipment for high-seismic zones, our technical documentation supports informed decision-making for medium and low-voltage power systems.
- Controlling System Voltage and Voltage Drop Calculations
- Power Factor for Typical Industrial Loads
- Seismic Certification of Capacitor Equipment (Zone 4 Compliance)
- Air Core vs. Iron Core Reactors: Comparison Guide
- The Plant Engineer’s Guide to Power Factor and Harmonics
- Metal-Enclosed vs. Rack-Mounted Capacitor Banks
1. Controlling System Voltage and Voltage Drop Calculations
Managing system voltage is critical for grid stability. Without the integration of power factor correction capacitors, voltage drop across a system is typically calculated using the relationship between load current and system impedance.
Without capacitors, the voltage drop across a system is calculated as:
or
- Vd = voltage drop across system leading to the load
- kVA = 3-phase load kVA
- kV = phase to phase voltage at load
- cos theta = cosine of the power factor angle
- R = resistance of system leading up to the load (ohms)
- X = inductive reactance of the system leading up to the load (ohms)
The percent voltage rise at a load due to the addition of a capacitor bank is:
- Vr = % voltage rise at load
- kVAR = 3-phase capacitive kilovar
- kV = phase to phase kilovolts
- X = inductive reactance of the system
- KVAsc = 3-phase short circuit kVA
The percent voltage rise from primary to secondary of a transformer is:
Where:
- Vr = the percent voltage rise at the transformer
- kVAR = 3-phase kilovar applied
- kVAt = 3-phase kVA of the transformer
- Xt = transformer reactance in percent
2. Power Factor for Typical Industrial Loads
Understanding the baseline power factor (PF) of your equipment is the first step in system design. We provide a comprehensive reference table for common industrial machinery, from induction motors to arc furnaces.
Typical Industrial Loads and Their Common Power Factors
3. Seismic Certification of Capacitor Equipment (Zone 4 Compliance)
Reliability during natural disasters is a non-negotiable for critical infrastructure. Controllix metal-enclosed capacitor banks are engineered and certified to withstand extreme seismic events and high-velocity wind storms.
Controllix metal-enclosed capacitor banks are designed for withstanding the most violent of natural phenomena, including earthquakes and wind storms.
Specifically, Controllix equipment is certified for Zone 4 seismic compliance. The results of studies (available upon request) indicate that Controllix assemblies are qualified to withstand the effects of gravity dead load and high seismic loading conditions specified by IEEE-STD-693-1997.
4. Air Core vs. Iron Core Reactors: Comparison Guide
At medium voltage levels (2.4kV through 46kV), choosing the right reactor is vital for harmonic filter longevity.
5. The Plant Engineer’s Guide to Power Factor and Harmonics
This foundational guide bridges the gap between theoretical electrical engineering and practical plant floor application.
6. Metal-Enclosed vs. Rack-Mounted Capacitor Banks
Choosing the right enclosure type impacts your Total Cost of Ownership (TCO), installation timeline, and safety profile.
| Feature | Metal-Enclosed Banks | Rack-Mounted Banks |
| Installation | Fully assembled & tested; “Plug and Play” | Requires extensive field assembly |
| Safety | Tamper-resistant; high environmental protection | Exposed components; requires fencing |
| Maintenance | Low; components protected from elements | Higher; susceptible to wildlife and weather |
| Ideal For | Industrial facilities & urban substations | Remote utility yards with large footprints |
Why Trust Controllix Technical Data?
For over 40 years, Controllix Corporation has been a leader in power quality. Our technical data is derived from real-world applications in the most demanding environments, from heavy industrial plants to global utility grids.