Low Voltage Capacitors for Power Factor Correction Three / Single Phase
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Low Voltage Capacitors for Power Factor Correction Three / Single Phase Standard design Other designs on request Niederspannungs-Leistungskondensatoren für Blindleistungskompensation Drei -/ Einphasig Standardausführungen Andere Ausführungen auf Anfrage The source of your success

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GENERAL INFORMATION ALLGEMEINE INFORMATION The rational use of electrical energy requires an economical generation, transmission and distribution with low losses. Therefore, all factors which cause such losses have to be minimized or to be eliminated in the power supply. One of these factors is the reduction of the inductive current by power factor compensation. The loads in industrial and public power supply systems mainly have an ohm-inductive characteristic. Installations for power factor compensation supply capacitive power at defined network junction points to reduce the transmission...

GENERAL INFORMATION ALLGEMEINE INFORMATION

G ENE RAL INFORMATION ALLGEMEINE INFORMATION The power P drawn from the electrical mains is equal to the product of the voltage U, the current I and the phase displacement angle 9. P = U x I x cos 9 Pure active power results when current and voltage are in phase in case of AC-supply (Fig 1) .This applies to ohmic loads like incandescent lamps and electric heating elements. This power is called active power. Motors and transformers, for example, need magnetic fields for their operation and since the energy, consumed in generating the magnetic fields, cannot be converted to active power, it...

ALLG EMEINE INFORMATION Theoretical base Тheoretische Grundlagen Bild. 1: Ohmische Last Bild. 2: Induktive Last Active current Active power P Blindstrom Blindleistung Q Reactive current Reactive power Q Bild. 3: Summe von Wirk- und

ALLG EMEINE INFORMATION Theoretical base Тheoretische Grundlagen A capacitor having the same power Qc would provide Ein Kondensator mit der gleichen Blindleistung Qc würde die complete compensation and increase the power factor cos  to 1. But such complete compensation is not desirable in practice, because a change in load could result in over-compensation. Usually the power supply utilities specify the power factor to which compensation should be provided. capacitor is then obtained from: Qc = P (tan  – tan  ) ¹ ² A load with an active power of P = 167 kW should have its power factor...

GENERAL INFORMATION ALLGEMEINE INFORMATION

ALLG EMEINE INFORMATION Operation of power capacitors in power supply systems with harmonics Harmonics result from the operation of electrical loads, which have non-linear voltage-current characteristics. Einsatz von Leistungskondensatoren in Netzen mit Oberschwingungen Oberschwingungen entstehen beim Betrieb von elektrischen Verbrauchern mit nichtlinearer Spannungs-Strom Charakteristik. They are caused by DC or AC converters for electrical drives as well as by welding machines and stand-by power supplies. Harmonics are sinusoidal voltages and currents with frequencies that are multiples of...

ALLGEMEINE INFORMATION Installation and operation For installation and operation of power capacitors, installation and operating instructions such as VDE 0100, VDE 0101, VDE 0105, VDE 0560 part 4 and part 46 as well as EN 60831 and IEC 831 must be taken into account. Power capacitors must be installed in a cool and well ventilated room, and should not be installed within the range of heat radiating objects. Normally, the natural heat release of the power capacitors is sufficient for cooling provided that provision is made for free entry and exit of the cooling air and a minimum distance of...

THR EE PH ASE CAPACITORS Technical Specification PRB DPM & PRB DPMg DREIPHASIGE KONDENSATOREN Technische Spezifikation PRB DPM & PRB DPMg Rated voltage 230 - 690V Rated frequency 50/60 Hz Capacitance tolerance -5%/+10% Over voltages Un + 10% up to 8h daily Un + 15% up to 30 min. daily Un + 20% up to 5 minutes for 200 times in life of capacitor Un + 30% up to 1 minute for 200 times in life of capacitor Over current 1,5 x In (including harmonics) Inrush current Max. 200 x In Test voltage terminal/ terminal 2,15 x Un AC (2 seconds) Test voltage terminal/case 3,6 kV AC (10 seconds) Dielectric...

2 THREE PHASE CAPACITORS DREIPHASIGE KONDENSATOREN Technical Specification PRB DPM & PRB DPMg Тechnische Spezifikation PRB DPM & PRB DPMg 1. Application HYDRA PRB DPM(g) three-phase capacitors are designed for power factor correction (PFC) in low voltage networks. They may be used for: 1. Anwendung HYDRA PRB DPM(g) Drehstromkondensatoren sind für die Blindleistungkompensation (PFC) in Niederspannungsnetzen ausgelegt. Sie können verwendet werden für: - individual fixed PFC of motors, transformers, etc. - Einzelkompensation von Motoren, Transformatoren, u.s.w. - Automatische...

2 THREE PHASE CAPACITORS DREIPHASIGE KONDENSATOREN Technical Specification PRB DPM & PRB DPMg Тechnische Spezifikation PRB DPM & PRB DPMg 7. Overpressure disconnector (tear-off fuse)

3 THREE PHASE CAPACITORS DREIPHASIGE KONDENSATOREN Other voltages available upon request. Weitere Nennspannungen auf Anfrage

THREE PHASE CAPACITORS Hydra PRB DPM oil filled DREIPHASIGE KONDENSATOREN Hydra PRB DPM olgefullt Rated power Nennleistung Rated capacitance Rated current Weight Dimension pcs./box Nennkapazitat Nennstrom Gewicht MaBe Anzahl/Karton Order code Bestell-Code Rated voltage / Nennspannunq 440V Rated voltage / Nennspannung 480V Other voltages available upon request. Weitere Nennspannungen auf Anfrage

THREE PHASE CAPACITORS Hydra PRB DPM oil filled DREIPHASIGE KONDENSATOREN Hydra PRB DPM olgefullt Rated power Rated capacitance Rated current Weight Dimension pcs./box Nennleistung Nennkapazitat Nennstrom Gewicht Made Anzahl/Karton Rated voltage / Nennspannung 525V Rated voltage / Nennspannung 690V Other voltages available upon request. Weitere Nennspannungen auf Anfrage

3 THREE PHASE CAPACITORS DREIPHASIGE KONDENSATOREN Other voltages available upon request. Weitere Nennspannungen auf Anfrage