Download Automatic Power Factor Correction Equipment PFL/R 375

Automatic Power Factor Correction Equipment
PFL/R 375 kVAr - 400 Vac
Technical Data
MAINS
Rev.01
REGULATION and CONTROL
Rated Voltage 400 Vac ± 10% - 50 Hz
Harmonic overload in the network THDI < 10%,
resonance not allowed (fr>14) (*)
Working temperature -10°C / 50°C
(*) fr: frequence of resonance of the network
(fr= power of short circuit / power of PF correction )
CIRCUIT
Cables entry feithere bottom.
Three-pole isolating switch with door interlooking
device.
Fuse protected Aux circuit 110 V, supplied via an
internal single-phase trasformer.
Wiring by N07VK cables.
CUBICLE
Sheet steel, protected against corrosion by
phosphate treatement. Epoxy powder painted
RAL7035 colour.
External Protection Degree (closed door) IP30.
Internal Protection Degree (open door) IP2X on the
parts under voltage.
Forced ventilation.
RegulatIon of PFC using varmetric measurement by
means of a C.T. (secondary 5A).
LED Display of: Power Factor - Voltage - Current ΔkVAr - Weekly Power Factor - Overload % Temperature inside cabinet - Set Power Factor.
Power Factor Setting: 0,80 lag ÷ 0,80 lead
Segnalling by a led of: Power on - Inductive Load Capacitive Load - Banks connected - Alarm
Not affected by micro breackdown lasting less than 30
ms
Adjustable switching of the banks between 5÷240
seconds
True RMS measurement of Voltage and Current
Alarm contact, voltage free
Allarm for max harmonic overload 50%
CAPACITORS
Capacitors VRC 440 Vac
Self-healing metallized polypropylene single-phase
capacitors, equipped with overpressure safety device
and discharge resistor.
PCB free.
Delta connection.
Capacitance tolerance: -5%+10%
Dielectric losses: <0,3 W/kvar
Temperature class: -25/D(55°C)
REFRENCE STANDARDS
CONTACTORS
Each bank of capacitors is controller by a special
three-pole contactor.
To limit the inrush current peaks, each contactor is
provided with insertion resistors.
Coils of the contactors at 110 Vac 50/60 Hz.
Each bank of capacitors is protected by a set of three
fuses with high breaking capacity.
L.V. 73/23 (93/68) EEC Directive
Capacitors: CEI EN 60831-1/2
Equipment: CEI EN 61439-1, CEI EN 61921-1
Power at 400 Vac / 50 Hz
375 kvar
Banks
37,5 - 37,5 - 75 - 75 - 75 - 75 kvar
Steps
10 x 37,5 kvar
Isolating Switch
1250 A
Regulator
PFC8
Rated Current
540 A
Dimensions W x D x H
600 x 625 x 1565 mm
Weight
340 kgs
ITALFARAD S.p.A. Via IV Novembre 1 Minerbio (Bologna) Italy
Tel. +39 051 6618311 Fax +39 051 6605594 E-mail: [email protected] Web: www.italfarad.com