Fator de potencia

PhiCap Capacitors for Power Factor Correction
Product Profile 2003

www.epcos.com

PhiCap AC Capacitors for Power Factor Correction
General The PhiCap series, is a well approved and reliable EPCOS MKP (Metalized Polypropylene) capacitor series for AC current applications with long time of field experiences, more than 25 years. The power range varies from 0.5…28 kvar and 0.7...5.0 kvar persingle capacitor can, depending on a three-phase or singlephase capacitor design. The PhiCap capacitor is especially intended for power factor correction in industrial and semi-industrial applications. The capacitors are manufactured using metalized polypropylene film as dielectric and housed in a cylindrical aluminum case. Type Number Decoding System
7.5 kvar Output power PhiCap Capacitor TypeRevision

B 3234 4 C 4 07 1 A 5 40
Phase Three-phase 4 Three-phase 3 Single phase 0 1= 60 Hz –5% /+10% 2= 50 Hz Rated voltage AC 200 + 300 + 400 + 500 +

2 3 4 5

= = = =

B32344C4071A540 (7.5 kvar –5%/+10% 440 VAC three-phase 50/60 Hz)

00 10 20 30 40 80

= = = = = =

00 15 20/25 30 40 80

PhiCap™ applications a Power factor correction (PFC) a Automatic capacitor banks a Fixed PFC(power factor correction) applications, e.g. motor compensation a AC power electronics a Uninterruptible power supplies (UPS) a Drive engineering a De-tuned PFC systems

User benefits Electrical a Up to 25 kvar per case for threephase applications a Up to 5 kvar per case for singlephase applications a Long expected life cycle, ≥ 100 000 hours a High pulse current withstand capability (200 * IN)Mechanical & Maintenance a Reduced mounting costs, easy installation and connection a Low weight and compact volume a Maintenance free Safety a SH type (self-healing capacitor type) a Overpressure disconnector a Isolated terminal (IP20) Environment a Non-polluting, environment friendly product a PCB-free product (NPCB)

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EPCOS AG

The PhiCap is a self-healing (SH), metalizedpolypropylene film capacitor. The current-carrying AlZn metal layer (the best alloy for an electrode) is vapor-deposited onto one side of the film, the surface of dielectric. Compact design – low weight and small volume The entire three-phase capacitor is composed of three single-phase element stacks. The electrodes are connected by metal spraying layer (shooping process) on the face ends of the windingelements. The winding elements are encapsulated in a cylindrical aluminum case and hermetically sealed either by a press-rolled metal lid or plastic disc with fast-on terminals.

Dual safety systems a Self healing: the capacitor repairs itself, in case of overload. SH capability prevents permanent dielectric breakdown in case of sporadic voltage surges, overcurrent or overtemperature. a Overpressuredisconnector: this prevents the capacitor from bursting at the end of its service life, or caused through electrical or thermal overload. In case of permanent self-healing attempts caused by repetitive very high peak voltages or other overloads will result in permanent breakdown. In such a case the safety switching device will be activated and disconnect (cut off) the capacitor winding elementsfrom the power source by means of internal pressure raising (expansion of the capacitor Al-case).

Design hint: Due to the increase of the capacitor’s height, in a breakdown case, it is necessary to provide enough clearance above the capacitor‘s terminals. Connection Technology a SIGUT block type terminal – IP20 – innovative clamping system a Discharge resistors are included in shipment; standardfor extra reliability and safety a Cable connection layout (terminals) adjusted to secure safe clamping of required cable crosssection.

Over pressure disconnector
Double fast-on terminal Connected

Disconnected

Winding C 1, 2, 3

Detail B Detail A

EPCOS AG

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PhiCap Capacitor Selection To specify and select the capacitors for PFC several factors affect the performance and the...