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B32343C4022A010 Datasheet(PDF) 10 Page - EPCOS |
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B32343C4022A010 Datasheet(HTML) 10 Page - EPCOS |
10 / 12 page Film capacitors – Power Factor Correction B32343C****A*** PhiCap capacitors B32343C / MKPxxx-D FK PC PM PFC March 2009 Please read Cautions and warnings and Page 10 of 12 Important notes at the end of this document. Overpressure disconnector To ensure full functionality of an overpressure disconnector, the following must be observed: 1. The elastic elements must not be hindered, i.e. - connecting lines must be flexible leads (cables), - there must be sufficient space (min. 12 mm) for expansion above the connections. This will enable a longitudinal extension of the can to secure the overpressure disconnector work. - folding beads must not be retained by clamps. 2. Maximum allowed fault current of 10000 A in accordance with UL 810 standard must be assured by the application. 3. Stress parameters of the capacitor must be within the IEC 60831 specification. Overcurrent and short circuit protection Use HRC fuses or MCCBs for short circuit protection. Short circuit protection and connecting cables should be selected so that 1.5 times the rated capacitor current can be permanently handled. HRC fuses do not protect a capacitor against overload - they are only for short circuit protection. The HRC fuse rating should be 1.6 to 1.8 times rated capacitor current. Do not use HRC fuses to switch capacitors (risk of arcing). Use thermal magnetic over current relays for overload protection. Resonance cases Resonance cases must be avoided by appropriate application design in any case. Maximum total RMS capacitor current (incl. fundamental harmonic current) specified in technical data must not be exceeded. Re-switching vs. phase-opposition In case of voltage interruption, a sufficient discharge time has to be ensured to avoid phase- opposition and resulting high inrush currents. Vibration resistance The resistance to vibration of capacitors corresponds to IEC 68, part 2–6. Max. test conditions: Test duration 6 h* Frequency range 1 10 ... 55 Hz* Displacement amplitude 0.75 mm* *corresponding to max. 98.1 m/s” or 10 g These figures apply to the capacitor alone. Because the fixing and the terminals may influence the vibration properties, it is necessary to check stability when a capacitor is built in and exposed to vibration. Irrespective of this, you are advised not to locate capacitors where vibration amplitude reaches the maximum in strongly vibrating equipment. |
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