PFC Engineering’s metallized polypropylene capacitors have
been thoroughly tried and tested. Many thousands of these units
are installed worldwide and have proven to be extremely reliable.
With their characteristic low weight and volume, these capacitors
allow Power Factor Correction installations to be built up to any
requirement.
These capacitors feature an all metallic construction within a
cylindrical aluminium case. Advanced safety features include; self
healing qualities, an integral overpressure disconnect device and
non toxic impregnated polypropylene capacitor elements. The unique
construction of this product prevents leakage even if the casing
is punctured.
The dielectric is self healing. In the case of a breakdown caused,
for example, by voltage overload, the self healing effect takes
place. If the self healing process does not operate (e.g. because
of voltage, current or thermal overload) the cover plate, which
is designed as an overload valve, is raised and ruptures the internal
connecting wires to the coils, so that the capacitor is seperated
from the mains.
Extreme purity of the material used prevents a deterioration of
the loss factor and thereby a reduction of the dielectric strength
and the current load capacity. The very low number of failures in
the field prove an exceptionally high life expectancy. Field reports
received over the last 10 years point to a failure rate of less
than 1% in 15 years of operation.
These capacitors allow Power Factor Correction installations to
be constructed for any requirement and meet the regulations:
VDE 0560 part 41, BS EN 60831-1,
BS EN 61921, BS EN 60831-2.
Capacitors are manufactured under:
ISO 9001 - Management System Certification
ISO 14001 - Environmental Management System Certification
Cylindrical Aluminium case, dielectric consisting of a vacuum impregnated
metallized polypropylene foil. Dry filled with a flame inhibiting,
stabilised mineral filler.
Rated at 415 Volts 3 phase 50 Hertz. 2.7 to 26.9 kVAr.
Provided to suit requirements.
Cylindrical aluminium case, with M12 mounting stud. Three-phase
capacitors with integrated discharge resistor. Tension spring connection
terminal for quick, secure wiring.
Approx. 0.05% (0.5 Watt/kVAr) measured at the connecting terminal
including discharge resistors.
Approx. 0.02% (0.2 Watt/kVAr) measured at the capacitor coils.
According to IEC 831, every power capacitor must have a discharge
device which guarantees a discharge to 75 Volts DC within three
minutes.
PFC’s capacitors have integrated discharge resistors which
guarantee a discharge to 50 Volts DC within one minute.
For our standard 400 / 415 Volt capacitor products.
Voltage: 440V permanently
484V 8 hours per day
506V 30 minutes per day
528V 5 minutes per day
572V 1 minute per day
Current: 2x In continuously @ (400V)
*1.8x In continuously @ (400V)
Other products available upon request.
Ambient –40 to +60°c
