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PHASECAP ® AC CAPACITORS - [TECHNICAL DATA] |
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Standards IEC 831-1/96, IEC 831-2/95, EN 60831-1 +2/96, VDE 560-46+47 3/95. |
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U max. |
Un + 10 % (Up to 8 h daily) /Un + 15 % (Up to 30 |
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min daily) / Un + 20 % (up to 5 min) / Un + 30% |
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(Up to 1 min 200 times during useful life.) |
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| Frequency |
I max. |
1.3 * In, in certain cases higher [See Table] |
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| Losses (dieelectric) |
Is |
100 * In |
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| Capacitance |
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50 / 60 Hz |
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| Test voltage, terminal / |
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0.5 W kvar |
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| Test voltage, terminal / case |
UTT |
-5 % / +10 s |
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| Useful life |
UTC |
100,000 h |
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| Ambient Temperature |
Tld (co) |
-25%D, max. 55° C |
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| Cooling |
LCT/ |
natural or forced |
| Humidity |
UCT |
max.95 % |
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| Altitude |
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2000 m asl (Above sea level) |
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| Cooling |
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random except upside down. |
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| Humidity |
Hrel |
threaded M12 stud (10 Nm) for case dia > 53 mm, |
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M8 (4 Nm) for case dia > 53 mm |
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| Safety |
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overpressure disconnector, self-healing |
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| Discharge resistors |
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discharge module included. |
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| Case |
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extruded aluminium. |
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| Enclosure |
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IP20, indoor mounting (optional IP32) |
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| Dieelectric |
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polypropylene film. |
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| Impregnation |
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non=PCB, Vegetable oil based resin. |
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| Terminals |
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Screw terminals for B32344, fast-on terminal for |
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B32340 and B32343. |
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| Certification |
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UL for B32340 up to 450 Vac, UL pending for other |
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series. |
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PHASECAP ® AC CAPACITORS - [ HIGH INRUSH CURRENT WITHSTAND CAPABILITY IS CRUCIAL ] |
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Capacitors used for power factor correction undergo a lot of switching operations. The high |
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inrush currents that to along with this must be handled without degrading useful life. The pulse |
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strength of this technology comes in particular from the enlarged contact area ( heavy edge |
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metalization) and metal sprayed contact (face side winding element) |
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PHASECAP ® AC CAPACITORS - [ AND WHERE IT IS CRUCIAL] |
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Parallel connection of capacitors. |
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Non-detuned capacitors. |
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Capacitor bank using standard contactors. |
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PHASECAP ® AC CAPACITORS - [ USEFUL LIFE UP TO 100,000 OPERATING HOURS ] |
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After a long drying phase in high vacuum to eliminate moisture from the active element, the |
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capacitor is filled with biodegradeable soft resin. This production helps to avoid oxidation and |
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partial discharges, promoting capacitance stability over a long period. |
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Phicap is a self-healing, metalized polypropylene film capacitor. The current carrying AIZ |
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mental layer (the best alloy for an electrode) is vapor-deposited once one side of the film, the |
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surface of the dieelectric. |
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PHASECAP ® AC CAPACITORS - [ COMPACT DESIGN - LOW WEIGHT AND VOLUME ] |
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The entire three-phase capacitor is composed of three single-phase element stacks. The |
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electrodes are connected by metal spraying the face endsof the windingelements.The winding |
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elements are encapsulated in a cylindrical aluminum case and hermetically sealed by a press |
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rolled metal lid or plastic disk with fast-on terminals. |
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PHICAP ® AC CAPACITORS - [ DUAL SAFETY SYSTEMS] |
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Self-healing: the capacitor repairs itself after overload. Self-healing capability prevents |
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permanent dielectric breakdown in the event of sporadic voltage surges, over current or over |
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temperature. |
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Overpressure disconnector: this prevents the capacitor from bursting at the end of its useful |
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life or through electricalor thermal overload. In the event of permanent self-healing attempts |
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caused by repetitive, very highpeak voltages or other overload, there can be permanent |
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breakdown. The safety switching device is then activated and disconnects the capacitor |
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winding elements from the power source by an internal pressure increase (expansion of the |
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capacitor case). |
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PHICAP ® AC CAPACITORS - [ DESIGN TIPS ] |
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Becauseof the increase in capacitor height on breakdown, it is necessary to provide enough |
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clearance above the capacitor terminals. |
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PHASECAP ® AC CAPACITORS - [CONNECTION TECHNOLOGY] |
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Simplified parallel connection of capacitors (double fast-on-terminal or double wire clamping |
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screw terminals) |
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Discharge resistor already mounted; standard for extra reliability and safety. |
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Cable Connection layout (terminals) for secure, safe clamping of required cable cross-section. |
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PHASECAP ® AC CAPACITORS - [OVERPRESSURE DISCONNECTOR] |
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PHASECAP ® AC CAPACITORS - [ PHI CAP SELECTION ] |
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When specifying and selecting capacitors for PEC, there are several factors affecting |
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performance and useful life. |
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Voltage, |
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Harmonics, |
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Temperature, |
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Inrush current. |
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Permanent overvoltage shortens the useful life of a capacitor. The capacitors nominal voltage |
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must be equal to or greater than the operating voltage of the circuit the capacitor will be |
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connected to. |
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Harmoncis produce overvoltage and overcurrent on capacitors. If the total harmoinc distortion |
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level for voltage exceeds 5% for example, serious damage can be caused by circuit resonace. |
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In such cases series reactors (detuning) and recommended. |
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Operation of capacitors above the upper catagory temperature will accelerate degradation of |
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the dielectric and shorten the capacitor's useful life. |
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Residual voltage should not exceed 10% of rated voltage when reswitching capacitors. During |
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the charging period of capacitors the current is very high - in automatic capacitor bank it is |
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very like that discharged capacitors will be connected to charged ones already connected to |
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the grid. In such cases the maximum admissible transient peak current is 100 * IN. |
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During the switching process, thermal and electrodynamics stress is produced by transient |
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overcurrents of high amplitude and frequency and may damage the system. Capacitor |
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contactors with precharging resistors or series inductance (twinned cables between contactor |
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and capacitor) will avoid excessive transient currents. |
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| * LP- List Price inclusive of excise duty but exclusive of sales tax or any other taxes. |
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For Improved power quality and reduction in energy costs. |
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