Power Factor Correction Solutions for Industry

What is Power Factor?

Power Factor (PF) is a key metric for assessing the efficiency of electrical energy utilization within a power system; specifically, it represents the ratio of active power (the electrical energy that performs actual work) to apparent power (the total electrical energy supplied by the power grid).
In many industrial and commercial facilities, the extensive use of inductive loads—such as electric motors and transformers—results in the consumption of significant amounts of reactive power, thereby leading to a reduction in the power factor.
Simply put, a low power factor means that you are purchasing more electricity than you are effectively converting into productive output.

Free PF Assessment

Tell us your current power factor factor
— we‘ll show you how to fix it

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The Hidden Cost of Power Factor Correction

Electricity Bill Penalties

Most power companies worldwide impose substantial

Capacity Waste

Reactive current consumes a significant portion of the rated capacity of transformers and generators, preventing the system from accommodating additional active loads and thereby limiting the factory's capacity for production expansion.

Line Loss and Heating

When additional reactive current flows through cables, it significantly increases line losses (I²R losses), causing the lines to heat up and accelerating the aging of the insulation.

Solution

Stepped Compensation: From Basic to Dynamic

YIDEK provides efficient closed-loop solutions ranging from individual components to system-level assemblies.

Traditional Compensation Series

Intelligent Highly Integrated Modules

Core Dynamic Power Quality Equipment

High-Voltage Integrated Compensation Systems

Traditional Compensation Series

By employing the classic combination of capacitors (YD-R), reactors (CKSG), and switching devices, this solution delivers cost-effective, foundational compensation for scenarios involving stable loads.

Low Voltage Self-Healing Power Capacitor

Detuned Series Reactors for Capacitor Banks

Intelligent Reactive Power Compensation Controller

CJ19 Series Capacitor Switching Contactor

YD-TSCL Series Low Voltage Dynamic Switching Switch

YD-TSCL Low Voltage Dynamic Switch

YDFK Series Intelligent Composite Switch

YDFK Compound Switch for Capacitor Banks

Multifunction Power Meter for Energy and Power Quality Monitoring

Intelligent Highly Integrated Modules

Featuring advanced integrated modules with built-in intelligence, this solution offers smart monitoring and automatic control capabilities for enhanced power quality management.

Intelligent Power Capacitor

Anti-Harmonic Intelligent Power Capacitor

Core Dynamic Power Quality Equipment

SVG - Static Var Generator

High-Voltage Integrated Compensation Systems

High-Voltage Shunt Capacitor Installation

All core modules undergo 24-hour full load/no-load cycle aging testing to ensure industrial grade stability under complex operating conditions.

Related Cases

High-Voltage SVG for PV Grid Integration in Dongneng Logistics and Jinxi Industrial Park

Dongneng Logistics and Jinxi Industrial Park deployed YIDEK’s high-voltage SVG to stabilize grid voltage and manage reactive power during surplus PV export. Read the full case study.

Zhouyi International Hotel Power Distribution Renovation Project

A five-star hotel in Wenzhou solved low power factor and three-phase imbalance issues with YD-868 intelligent capacitors. Read the case study to learn the results.

FAQ

What practical problems does power factor correction cause?

Main issues: ① utility penalties (most utilities charge extra for PF < 0.9); ② wasted transformer and line capacity, limiting plant expansion; ③ increased line heating and accelerated insulation aging.

How can I quickly tell if my plant has a power factor correction problem?

Check your utility bill for “power factor penalty” or “reactive power charge.” If penalized, your PF is below the utility‘s requirement (typically 0.90-0.95). You can also measure with a power quality analyzer.

What equipment is typically needed for power factor correction?

From basic to dynamic: traditional capacitor banks (cost-effective for stable loads); smart capacitors (auto-switching, easy installation); SVG (millisecond response for fluctuating loads); high-voltage compensation devices (for 6kV-35kV systems).

SVG is more expensive than traditional capacitors – why is it worth the investment?

SVG offers 100x faster response, zero resonance risk, output unaffected by voltage sags, and bi-directional continuous regulation. Payback is typically 12-18 months from saved penalties, released capacity, and reduced maintenance.

How to select the right power factor correction solution?

Depends on load characteristics: stable loads → smart capacitor banks; fast fluctuating loads (welders, cranes, rolling mills) → SVG; high-voltage systems → HV compensators. Yidek offers free sizing evaluation – just provide transformer capacity, load type, and current PF.

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Factor Correction Proposal

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