PEC Application notes
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PEC APPLICATION NOTES / ANWENDUNGSHINWEISE

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APPLICATION NOTES AND SELECTION GUIDE

Mounting Position - Mounting Location/Cooling - Vibration Stress - Connection - Fixing Torque - Discharge - Earthing -Environmental compatibility - Disposal Einbaulage - Einbauort/Kuhlung - Schwingungs-belastung - Anschluss - Anzugs-Drehmomente - Entladung - Erdung - Umweltvertraglichkeit - Entsorgung TABLE OF CONTENTS INHALT

FIELDS OF APPLICATION ANWENDUNGSBEREICH Capacitors for power electronics can be used for a wide variety of applications, even where extremely non-sinusoidal voltages and pulsed currents are present. Both AC and DC capacitors are available. AC capacitors are periodically recharged during operation, DC capacitors are periodically charged and discharged without recharge. see Selection Guide pg. 23 Berechnungsbeispiel S. 23 see Selection Guide pg. 30 Berechnungsbeispiel S. 30 Kondensatoren für die Leistungselektronik sind universell einsetzbare Kondensatoren, die auch mit stark von der...

winding element Wickelkörper margin, uncoated Randstreifen unmetallisiert INTERNAL CONSTRUCTION INNERER AUFBAU contact layer Stirnkontaktschicht polypropylene film, metal deposit on one side Polypropylenfolie, einseitig metallisiert MKP-type capacitors are based on a low-loss dielectric formed by pure polypropylene film. A thin self-healing mixture of zinc and aluminium is metallized directly on one side of the PP-film under vacuum. In some cases, additional unmetallized layers are added between the metallized ones. Kondensatoren in MKP-Technologie basieren auf einem verlustarmen Dielektrikum...

Self-healing breakdown AH dielectric structures used in our capacitors are "self-healing": In the event of a voltage breakdown the metal layers around the breakdown channel are evaporated by the temperature of the electric arc that forms between the electrodes. They are removed within a few microseconds and pushed apart by the pressure generated in the centre of the breakdown spot. An insulation area is formed which is reliably resistive and voltage proof for all operating requirements of the capacitor. The capacitor remains fully functional during and after the breakdown. Selbst heilender...

Protection Against Overload and Failure at the End of Useful Service Life Schutz gegen Überlastung und Fehlfunktionen am Ende der Lebensdauer In the event of overvoltage or thermal overload or ageing at the end of the capacitor’s useful service life, an increasing number of self-healing breakdowns may cause disintegration of the dielectric film and rising pressure inside the capacitor. To prevent it from bursting, the capacitors of series E62, E63 and E65 are fitted with an obligatory «break action mechanism» (BAM). This safety mechanism is based on an attenuated spot at one of the connecting...

DEFINITIONS AND SELECTION CRITERIA BEGRIFFE UND AUSWAHLKRITERIEN The terms and abbreviations used in this brochure are based mainly on the actual standard for power electronics capacitors, IEC 61071, however, minor deviations may occur. Die in diesem Heft verwendeten Begriffe und Abkürzungen orientieren sich weitestgehend an der gültigen Norm für LeistungselektronikKondensatoren, IEC 61071. Geringfügige Abweichungen sind jedoch möglich. Capacitance value rated at 20°C / 50 Hz. Nennwert der Kapazität, bezogen auf 20°C, 50 Hz. The maximum or peak voltage of either polarity of a reversing or...

Voltage test between terminals UBB Routine test of all capacitors conducted at room temperature, prior to delivery. A further test with 80% of the test voltage stated in the data sheet may be carried out once at the user’s location. Prüfspannung, mit der alle Kondensatoren als Stückprüfung zwischen den Anschlüssen vor der Auslieferung geprüft werden. Beim Anwender ist eine Wiederholung dieser Prüfung mit dem 0,8fachen Wert der Prüfspannung zulässig. Voltage test between terminals and case UBG Routine test of all capacitors between short-circuited terminals and case, conducted at room...

Non-repetitive peak current (surge) IS Höchster Spitzenwert, der vereinzelt kurzzeitig im Störungsfall auftreten darf. Maximale Anzahl 1000 mal mit einer Höchstdauer von jeweils 50 ms. Maximum current that may occur non-repetitively and briefly in the event of a fault. Maximum count 1000 times with a duration of not more than 50 ms each. Equivalent resistance representing the sum of the Ohmic resistances occurring inside the capacitor. Essential for calculation of the current dependent losses. Ersatzwiderstand, welcher die Summe der im Kondensator auftretenden Ohmschen Widerstände...

Humidity classes %RH max. relative humidity 95% annual means 100% occasional condensation permitted max. relative Luftfeuchte 95% Jahresdurchschnitt, 100% gelegentlich Betauung zulassig ambient temperature Umgebungstemperatur max. relative humidity 75% annual means 95% 30 days/year condensation not permitted max. relative Luftfeuchte 75% Jahresdurchschnitt 95% 30 Tage/Jahr Betauung nicht zulassig max. relative humidity 65% annual means 75% occasional 85% 60 days/year condensation not permitted max. relative Luftfeuchte 65% Jahresdurchschnitt, 75% gelegentlich 85% 60 Tage/Jahr Betauung nicht...

Kürzeste Strecke entlang der Isolierung zwischen leitenden Teilen der Anschlüsse bzw. zwischen Anschlüssen und Gehäuse. In diesem Katalog wird stets die kürzere von beiden angegeben. Constant dissipation factor of the dielectric material for all capacitors at their rated frequency. The typical loss factor of pp film is tanδ0 = 2 x 10-4. Konstanter Verlustfaktor des Dielektrikums für alle Kondensatoren bei Nennfrequenz. Der typische Verlustfaktor von Polypropylenfolie beträgt tanδ0 = 2 x 10-4. Loss factor of the capacitor tanδ The shortest distance along an insulated surface between...