Low Voltage Power Factor Correction equipment

Product catalog summary

General Overview: The document focuses on low voltage power factor correction equipment, specifically the Power Factor Correction Banks type KOK. It emphasizes the importance of reactive power compensation to reduce costs and loads on transmission lines.

Reactive Power: Electrical devices often require reactive power, which can increase costs and strain transmission lines. Compensation is achieved by installing capacitors near inductive consumers.

Determination of Correction Device Power: The power required for correction devices is determined through a technical-economic study during planning or by analyzing existing plants' energy consumption.

Methods of Power Factor Correction: Three methods are outlined: individual correction for large consumers, group correction for consumer groups, and central correction from a central location. Specific formulas are used to calculate the required corrective power.

Example Calculations: The document provides examples of calculating capacitor ratings and current discharge before and after correction.

Individual Power Factor Correction for Low Voltage Motors: Fixed capacitors are recommended for rarely switched low voltage motors, with special considerations for star-triangle switches to avoid overvoltages and surges.

Specifications and Procedures: Capacitors are used in motor and transformer systems to manage reactive power. A capacitor with 6 poles should be used if a switch is unavailable, connected parallel to the motor winding. Various connection methods are illustrated.

Reactive Power Management: The document provides a formula for calculating required capacitor power and warns against quick discharging with larger capacitors. Table 4 offers orientational values for capacitor power ratings.

Power Factor Correction for Transformers: Similar to motors, transformers can be corrected using fixed capacitors. The document provides a formula for calculating transformer reactive power and guidance on capacitor power ratings.

Fixed Power Factor Correction Banks: Used for correcting low voltage transformers, these banks are constructed with a metal case and include three-phase correction elements. Technical data such as rated power and voltage are specified.

Automatic Power Factor Correction Banks: Used for group and central correction, available from 17.5 kvar to 300 kvar, and can be expanded with additional cabinets. They include an automatic reactive power regulator and protection features.

Overview of KOK Series: The KOK series includes models with power outputs ranging from 17.5 kvar to 300 kvar, designed for three-phase systems. They are modular, allowing for future upgrades, and equipped with automatic reactive power factor controllers.

Technical Data: Key parameters include dynamic strength, thermic current, power tolerance, temperature range, dielectric losses, and insulation level.

Harmonics Filtering: The KOK811x series is designed for environments with high harmonics, typically filtering the 5th harmonic.

Customization and Compliance: Custom engineering services are available, and devices comply with IEC and EN standards.

Installation Instructions: Guidelines emphasize expert handling and proper environmental conditions, with warnings about regular power connection checks.

Power Factor Controller: Describes the PFC 6 and PFC 12 controllers, which manage reactive power correction with digital displays and automatic or manual operation.

Alarm and Maintenance: Alarms are triggered by incorrect connections or low correction power, with regular maintenance checks recommended.

Production Program: Lists various capacitors and filters for electronics, motor applications, and power factor correction.