{"id":41785,"date":"2020-05-22T09:44:08","date_gmt":"2020-05-22T07:44:08","guid":{"rendered":"https:\/\/fhi.nl\/nieuws\/three-phase-ac-filter-capacitors-for-harsh-environments\/"},"modified":"2025-03-06T16:11:09","modified_gmt":"2025-03-06T15:11:09","slug":"three-phase-ac-filter-capacitors-for-harsh-environments","status":"publish","type":"news","link":"https:\/\/fhi.nl\/en\/news\/three-phase-ac-filter-capacitors-for-harsh-environments\/","title":{"rendered":"Three-Phase AC filter capacitors for harsh environments"},"content":{"rendered":"
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\n\t\t\t\t\tThree-Phase AC filter capacitors for harsh environments\t\t\t\t<\/h1>\n\n\t\t\t\t
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The Faratronic C67 Three-phase AC filter capacitor is designed for use in harsh environments. The capacitor is made of metallized polypropylene, is explosion-proof (ATEX), self-healing and has an overpressure tear-off fuse more safety. The C67 is used for AC filtering, LCL filtering and power factor correction in application like wind turbines or uninterruptible power supplies.<\/p>\r\n

The capacitor should be installed in a cool and well-ventilated place. The capacitors' working ambient temperature that we recommend is 55\u2103 (or lower). When the ambient temperature exceeds 55\u2103, considering the ambient temperature rising, the active power of the capacitor should be gradually decreased. When it gets to the highest temperature (85\u2103), the active power of the capacitor should be decreased to 0 Watt.<\/p>\r\n

For discharging, discharge resistors are required. Resistors are needed for human protection (risk of electric shock) and for re-switching capacitors in automatic PFC equipment (Phase opposition). Discharge resistors must be designed to discharge capacitors within 180 seconds to 75 V or lower.<\/p>\r\n

Expected lifetime of the capacitor<\/strong><\/p>\r\n

For capacitor applications, various factors will affect the expected lifetime of capacitors, such as voltage, temperature, current, network harmonics, humidity, lighting or radiation and other unknown factors. Voltage and temperature are the most basic factors. Because of all the factors listed above, except voltage, other factors will eventually show the rise of internal temperature of capacitors. The following curves show the relationship between capacitor life and voltage, temperature, etc. For your reference.<\/p>\r\n

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\uff08Note\uff1aUW is the actual working voltage) \u00a0 \u00a0 \u00a0 \u00a0 \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/p>\r\n

Specifications<\/strong><\/p>\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n
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Reference Standard<\/p>\r\n<\/td>\r\n

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IEC61071
Optional: IEC 60831<\/p>\r\n<\/td>\r\n<\/tr>\r\n

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Operating temperature range (\u03b8hs)<\/p>\r\n<\/td>\r\n

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-40\u2103 \u223c 85\u2103 (It is suggested that \u03b8hs should be guaranteed to be less than 70\u2103 in the use process, otherwise the lifetime will be affected, as shown in the expected lifetime curve.)<\/p>\r\n<\/td>\r\n<\/tr>\r\n

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Rated RMS Voltage (Urms)<\/p>\r\n<\/td>\r\n

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230Vac \u223c 850Vac<\/p>\r\n<\/td>\r\n<\/tr>\r\n

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Rated Frequency<\/p>\r\n<\/td>\r\n

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50\/60Hz<\/p>\r\n<\/td>\r\n<\/tr>\r\n

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Capacitance CN<\/p>\r\n<\/td>\r\n

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8\u03bcF \u223c 330\u03bcF<\/p>\r\n<\/td>\r\n<\/tr>\r\n

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Capacitance Tolerance<\/p>\r\n<\/td>\r\n

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\u00b15%, -5% \u223c +10%<\/p>\r\n<\/td>\r\n<\/tr>\r\n

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Capacitor internal connection<\/p>\r\n<\/td>\r\n

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Delta connection\uff08\u25b3\uff09<\/p>\r\n<\/td>\r\n<\/tr>\r\n

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Storage Temperature<\/p>\r\n<\/td>\r\n

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-40\u2103 \u223c 70\u2103<\/p>\r\n<\/td>\r\n<\/tr>\r\n

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Case<\/p>\r\n<\/td>\r\n

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Aluminum can<\/p>\r\n<\/td>\r\n<\/tr>\r\n

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Test voltage Between Terminals (UT-T)<\/p>\r\n<\/td>\r\n

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2.15Urms or 1.5UN ,10s<\/p>\r\n<\/td>\r\n<\/tr>\r\n

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Test voltage Between Terminals to Case<\/p>\r\n<\/td>\r\n

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4 000Vac, 10s)<\/p>\r\n<\/td>\r\n<\/tr>\r\n

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Insulation Resistance (IR\u00d7CN\uff09<\/p>\r\n<\/td>\r\n

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\u226510 000s (20\u2103, 100V ,1min)<\/p>\r\n<\/td>\r\n<\/tr>\r\n

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Dielectric dissipation factor tan\u03b4d<\/p>\r\n<\/td>\r\n

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2\u00d710-4<\/p>\r\n<\/td>\r\n<\/tr>\r\n

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Explosion-proof device<\/p>\r\n<\/td>\r\n

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Three phase overpressure disconnector<\/p>\r\n<\/td>\r\n<\/tr>\r\n

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Internal stuffing<\/p>\r\n<\/td>\r\n

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Vegetable oil (Non PCB)<\/p>\r\n<\/td>\r\n<\/tr>\r\n

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Expected lifetime<\/p>\r\n<\/td>\r\n

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|\u25b3C\/C|\u22645% after 100 000h @0.8 Urms, \u03b8hs \u226470\u2103<\/p>\r\n<\/td>\r\n<\/tr>\r\n

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Mounting position<\/p>\r\n<\/td>\r\n

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Vertical (The terminal must be upward)<\/p>\r\n<\/td>\r\n<\/tr>\r\n

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Max. Torque of Installation<\/p>\r\n<\/td>\r\n

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10 N m\uff08M12\uff09<\/p>\r\n<\/td>\r\n<\/tr>\r\n

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Max. Torque of terminals<\/p>\r\n<\/td>\r\n

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2N m\uff08M5\uff09\uff1b3N m\uff08M6\uff09<\/p>\r\n<\/td>\r\n<\/tr>\r\n

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4N m\uff08M8\uff09\uff1b6N m\uff08M10\uff09<\/p>\r\n<\/td>\r\n<\/tr>\r\n

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Cooling<\/p>\r\n<\/td>\r\n

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Naturally air-cooled or force-cooled<\/p>\r\n<\/td>\r\n<\/tr>\r\n

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Maximum allowed altitude<\/p>\r\n<\/td>\r\n

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2 000m<\/p>\r\n<\/td>\r\n<\/tr>\r\n<\/tbody>\r\n<\/table>\r\n

Download data sheet<\/a><\/p>\r\n

Contact Nijkerk Electronics<\/a><\/p>\t\t<\/div>\n\t<\/div>\n<\/div>\r\n\t

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