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Power factor correction

Power factor correction

Product catalog summary

Power Factor Correction Overview
Power factor correction (PFC) is crucial for enhancing electrical system efficiency by minimizing reactive energy in power lines. The aim is to achieve a power factor of 1, with penalties for factors below 0.95. PFC can be implemented individually, in groups, or centrally, with microprocessor controllers ensuring optimal levels.

Types of Power Factor Correction

Individual PFC: Capacitors are directly connected to appliances.
Group and Central PFC: Suitable for larger systems with variable loads, controlled by microprocessors.

Capacitor Types and Construction
Capacitors are available in MKP and MKV systems, both self-healing. MKP capacitors use metallized PP film and are dry, while MKV capacitors use metallized paper and PP foil, impregnated with mineral oil, suitable for higher power and temperature.

Installation and Safety
PFC capacitors should have slow-breaking fuses and be connected with copper conductors. Recommended conductor cross-sections and fuse ratings are detailed in a table.

Individual PFC Calculation
Calculations for transformers and motors are provided, specifying capacitor power requirements based on motor speed and transformer type.

Type Description and Configuration
Capacitors are classified by application, phase number, cooling method, configuration, and dielectric system. Detailed coding explains the type and specifications, including voltage, power rating, and frequency.

Key Recommendations
For systems with significant harmonic distortion, detuned PFC with reactors is recommended to reduce distortion and protect capacitors.

Detuned Reactors
Application: Detuned reactors address voltage and current distortion caused by non-linear electronic devices. They prevent resonance and act as a broadband filter when voltage distortion exceeds 3%.

Construction: ZEZ SILKO reactors are made from high-grade materials, ensuring high linearity and low losses. They are vacuum impregnated for high voltage stress resistance and minimal noise.

Installation Instructions: Consider network parameters, reactor power, and detuned frequency. Ensure adequate cooling and rate capacitors for higher voltage than the network's rated voltage.

Recommended Torques for Al Reactors with Busbars: M6: 7-9 Nm, M8: 8-10 Nm, M10: 11-14 Nm, M12: 15-20 Nm.

Technical Data: Specifications include power, capacitance, inductance, rated current, linearity current, and losses.

Medium Voltage Capacitors
Application: Designed for power factor correction and harmonics filtration at medium voltage.

Construction: Capacitors use a polypropylene foil dielectric impregnated with JARYLEC, ensuring low losses. Three-phase units are star-connected, and single-phase units are I-connected.

Installation Instructions: Prevent mechanical stress, ensure proper torque, maintain distance between capacitor cans, and check connections after operation. Discharge capacitors before handling.

Technical Data and Limit Values: Includes rated voltage, frequency, standards, overvoltage, overcurrent, capacitance tolerance, test voltages, inrush current, losses, life expectancy, protection degree, ambient temperature, cooling, humidity, altitude, mounting position, and case material.

Dimensional Drawings: Includes dimensions and weights for various capacitor types.

Power Factor Controllers and Contactors Overview
The document details technical specifications and features of power factor controllers and contactors, including PFR6/PFR12, SUPER PFR6/PFR12, Novar 1106/1114, LVC Vacuum Contactor, and MC Capacitor Contactors, designed for efficient reactive power compensation and capacitor switching in industrial applications.

PFR6/PFR12 Power Factor Regulators:

Advanced technology for effective power factor regulation.
Monitors system status and adjusts compensation stages.
Features THD measurement, alarm output, and a Fast Computerized Program (FCP).
Specifications: 400 VAC supply, 1% measurement accuracy, IP 51 protection.

SUPER PFR6/PFR12 Enhancements:

Includes harmonic distortion and temperature measurement, RS-485 interface.
Automatic or manual setup with a digital display.
Specifications: 400 VAC supply, temperature range 0 to 80°C, IP 40 protection.

Novar 1106/1114 Reactive Power Regulators:

Fully automatic with precise voltage and current measurement.
Supports automatic and manual settings with RS 232/RS 485 interface.
Specifications: 230 or 115 VAC supply, IP40/IP54 protection.

LVC Vacuum Contactor:

Designed for frequent operations, particularly for capacitor switching.
Features vacuum extinguishing method, long life expectancy.
Specifications: 6.6 kV rated voltage, 400 A rated current.

MC Capacitor Contactors:

Suitable for switching low-inductive and low-loss capacitors.
Equipped with auxiliary contacts and damping resistors.
Specifications include various power ratings and operational endurance.

General Observations:

Emphasizes precise measurement and control in power factor regulation.
Devices handle harmonic distortions and provide reliable performance.

Medium Voltage Capacitor Banks Overview
The document provides specifications and applications for medium voltage capacitor banks, types SCB, ACB, and SCA, used for power factor correction in MV networks.

Specifications:

Voltage: SCB and ACB up to 22 kV; SCA up to 132 kV.
Power Rating: SCB and ACB up to 10 MVAr; SCA on request.

Applications: Designed for individual or group compensation in MV networks.

Construction:

SCB and ACB housed in steel enclosures; SCA built on steel frames.
Standard configurations include ZEZ SILKO MV capacitors and fuse bases.

Additional Components: Options include inrush current reactors, unbalance relays, detuning reactors, current transformers, and vacuum contactors.

Production Program: Offers a range of products including power capacitors, detuned reactors, and PFC contactors.

Contact Information: ZEZ SILKO, s.r.o., located in Žamberk, Czech Republic.

Disclaimer: Specifications are subject to change without notice.

Catalog excerpts

Production program Výrobní program Power capacitors (LV and MV) Capacitors for power electronics Induction heating capacitors Surge MV capacitors Capacitor banks Detuned reactors (LV and MV) Inrush current MV reactors PFC contactors (LV and MV) PFC controllers Kompenzační kondenzátory (NN a VN) Kondenzátory pro výkonovou elektroniku Kondenzátory pro indukční ohřev Ochranné VN kondenzátory Kompenzační rozváděče Hradící tlumivky (NN a VN) Ochranné spínací VN tlumivky Stykače pro kompenzaci (NN a VN) Regulátory pro kompenzaci ZEZ SILKO, s.r.o. Pod Černým lesem 683 564 01 ŽAMBERK CZECH REPUBLIC Tel.: +420 465 673 111 Fax: +420 465 612 319 E-mail: [email protected] http://www.zez-silko.cz POWER FACTOR CORRECTION KOMPENZACE JALOVÉ ENERGIE © Copyright 2014 ZEZ SILKO, s.r.o. All Rights Reserved. Specification subject to change without notice. The information contained in this brochure describes the type of component and shall not be considered as guaranteed characteristics. This brochure replaces the previous edition. Všechna práva vyhrazena! Specifikace podléhají změnám bez předchozího oznámení. Informace uvedené v tomto katalogu jsou pouze informativního charakteru a nemohou být považovány za závazné. Tento katalog nahrazuje předcházející vydání.

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INDIVIDUAL PFC CALCULATION STANOVENI VELIKOSTI KOMPENZACNIHO LOW-VOLTAGE CAPACITORS KOMPENZACNI KONDENZATORY NN MV INRUSH CURRENT REACTORS 7,2/12 kV VN SPINACI TLUMIVKY 7,2/12 kV - VENKOVNI MV INRUSH CURRENT REACTORS 7,2/12 kV VN SPINACI TLUMIVKY 7,2/12 kV - VNITRNI

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POWER FACTOR CORRECTION KOMPENZACE JALOVÉ ENERGIE Under normal operating conditions an electrical equipment (electric motors, welding machines, fluorescent lamps) consumes not only active energy from the power line, but also reactive energy. From the physical viewpoint, the reactive energy is necessary to secure a correct function of these devices. However, sum of both energies applies load to transmission networks. The effort is to connect correctly designed capacitor to the appliance, which supplies the reactive energy directly to the appliance. It reduces the amount of reactive energy transmitted...

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POWER FACTOR CORRECTION KOMPENZACE JALOVÉ ENERGIE Capacitors are produced in MKP and MKV systems. Both dielectric systems are self−healing. Metal plated layer is evaporated in case of the voltage breakdown. Formed insulating surface is very small and does not effected the functionality of the capacitor. Capacitors windings are inserted into aluminium container. Container is equipped with the overpressure disconnector. MKP capacitors are made of one−side metallized PP film. Contacting of the winding is performed by zinc spraying. This configuration is dry without impregnant. As for MKV capacitor,...

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STAN OVEN I VELIKOSTI KOMPENZACNIHO KONDENZATORU Individual PFC for transformers Individuals kompenzace trojfazovych transformatoru Calculation of required power: Qp = Pp * k Non-compensated cos <p Coefficient "k" for / Koeficient "k" pro Vypocet potrebneho kompenzacnmo vykonu: Qp = Pp * k Non-compensated cos <p Coefficient "k" for / Koeficient "k" pro

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TYPE DESCRIPTION TYPOVÉ ZNAKY KONDENZÁTORŮ (VÝZNAM PÍSMEN A ČÍSLIC) First letter − application: C F P R V První písmeno − určuje druh kondenzátoru: PF correction / kompenzační medium frequency / středofrekvenční power electronics / speciální (komutační, filtrační, ochranné, podpůrné, řídící, HDO a pod.) impulse / rázové, impulsní couple / vazební Second letter – No. of phases, impregnant: Druhé písmeno − určuje počet fází a impregnant: Impregnant vegetable oil / rostlinný olej mineral oil / minerální olej PCB (used in past) / PCB (Delor 103, již se nevyrábí ) IPD, M-DBT / IPD, MDBT without impregnant...

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LOW−VOLTAGE CAPACITORS (CYLINDRICAL) KOMPENZAČNÍ KONDENZÁTORY NN (VÁLCOVÁ AL NÁDOBA) Application The capacitors are intended for individual, group or central power factor correction in low−voltage networks. Použití Kondenzátory jsou určeny pro individuální, skupinovou nebo centrální kompenzaci jalového induktivního výkonu v sítích nízkého napětí. Construction The capacitors are produced by the MKP system, which consists of metallised polypropylene foil with extremely low dielectric losses. The dielectric system is self−healing, in the dry variant. Konstrukce Kondenzátory jsou vyráběny systémem...

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LOW−VOLTAGE CAPACITORS (CYLINDRICAL) KOMPENZAČNÍ KONDENZÁTORY NN (VÁLCOVÁ AL NÁDOBA) Overpressure disconnector (tear−off fuse) Funkce odpojovače Technical Data and Limit Values Technická data a limitní hodnoty Rated voltage / Jmenovité napětí: Rated frequency / Jmenovitý kmitočet: Standards / Normy: Overvoltage / Nejvyšší přípustné napětí: Overcurrent / Nejvyšší přípustný proud: Capacitance tolerance / Tolerance kapacity: Test voltage terminal/terminal / Zkušební napětí mezi svorkami: Test voltage terminal/case / Zkušební napětí mezi spojenými svorkami a nádobou: Inrush current / Nárazový proud:...

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LOW−VOLTAGE CAPACITORS (CYLINDRICAL) KOMPENZAČNÍ KONDENZÁTORY NN (VÁLCOVÁ AL NÁDOBA) Three−Phase Capacitors 400 V AC, 50 Hz, MKP dry, delta connection Type Typ CSADG 1-0,4/1 CSADG 1-0,4/1,5 CSADG 1-0,4/2 CSADG 1-0,4/2,5 CSADG 1-0,4/3,15 CSADG 1-0,4/4 CSADG 1-0,4/5 CSADG 1-0,4/6,25 CSADG 1-0,4/8 CSADG 1-0,4/10 CSADG 1-0,4/12,5 CSADG 1-0,4/15 CSADG 1-0,4/20 CSADG 1-0,4/25 CSADG 3-0,4/30 CSADG 3-0,4/33,3 CSADG 3-0,4/37,5 CSADG 3-0,4/40 CSADP 3-0,4/50 Three−Phase Capacitors 440 V AC, 50 Hz, MKP dry, delta connection Type Typ CSADG 1-0,44/1 CSADG 1-0,44/1,5 CSADG 1-0,44/2 CSADG 1-0,44/2,5 CSADG 1-0,44/3,15...

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Power factor correction

Power factor correction

Catalog excerpts

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