POWER FACTOR CORRECTION

HOW DOES IT AFFECT MY BUSINESS?

A poor power factor (less than 0.95 PF) may cause a tariff to be charged on your power bill, or an excess of kVA peak demand or both. It will increase your overall current loading and reduce spare capacity in your transformer, cables and electrical switchgear.

WHAT CAN I DO TO PREVENT THIS?

By introducing Capacitors into the circuit, the Capacitive reactive power (in kVAr) balances the inductive reactive power to bring the Apparent power (kVA) closer to the true power (kW), the resultant being a PF of 0.95 or better or kW = kVA. This process is called Power Factor Correction and may take the form of individualised capacitors or an Automatic Power Factor Correction Unit (APFCU) depending on circuit requirements.

For overloaded sites Power Factor Correction is one of the quickest ways to reduce load and may help prevent costly infrastructure upgrades.

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PDC can partner with you to analyse, specify and supply the correct PFC unit for each unique site to remove the Power Factor tarriffs and reduce the kVA peak demand. Available system capacity is increased and costly electrical infrastructure upgrades can be avoided.

Power Factor is the ratio of true power used (kW) to the apparent power (kVA) used in an electrical circuit.

A poor power factor (0.95 PF or less) is caused when a circuit has a high level of inductive loads (predominantly electric motors) causing the circuit voltage and current waveforms to be out of phase and the resultant using more apparent power than is needed.

W H AT I S P O W E R FA C T O R ?

H O W C A N P D C H E L P ?

CONTACT PDC FOR MORE INFORMATION AND SPECIALISED ADVICE ON POWER FACTOR CORRECTION.

POWER-VAr P O W E R FA C T O R C O R R E C T I O N

S Y S T E M

To remove Power Factor tariffs, kVA peak demand, or free up supply capacity in electrical infrastructure, the PDC Power-VAR will be a champion in improving energy usage and reducing operational costs.

Built on a solid electrical manufacturing pedigree, PDC has designed the Power-VAr to be robust, upgradable and serviceable ensuring a long service life history. Sourced components are of a high quality and are backed up by supplier and PDC quality assurance.

With qualified maintenance, your PDC Power Factor Correction unit will give you outstanding service for many years achieving an excellent return on your investment.

The POWER-VAr Power Factor Correction System by PDC is manufactured in New Zealand for industrial and commercial three phase 400/415V installations.

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Height ( typical) 2100mm (including plinth 100mm)

Width 800mm

Depth 600mm

Colour RAL 7032 (Grey)

Mounting Floor mounted

Voltage 400/415V 3 phase

Frequency 50 Hz

Range 75 kVAr +

Reactors 7% 3 Phase Harmonic Blocking

Capacitors 3 Phase - IEC 60831

Environment Indoor, IP20, Oil Filled

Ambient range limit + 40 Degrees C

CT requirement 5A secondary (CT not supplied)

Cooling Fan forced ventilation via thermostat

Servicing Annual

Contactors AC3 rated

Cable entry Top or bottom. (Top standard)

Integration (not fitted standard) Modbus, alarm contacts

Alarm options (not fitted standard)

Beacon, Sounder, O/P to BMS

Step protection HRC (MCCB option available),

System protection Overvoltage/Current/ Harmonic /temp cut out

Capacitor protection Over pressure disconnect

S P E C I F I C AT I O N

Power Factor Control Relay

CodeContactor

stepsSize (mm)

PFCR06 6 144 x 144

PFCR14 14 144 x 144

Power-VAr Power Factor Correction Systems by PDC

Code kVAr Reactors Size( H x W x D) mmFloor/Wall

PFCU30 (mini) 30 n 800 x 600 x 300 Wall

PFCU45 (mini) 60 n 800 x 600 x 300 Wall

PFCU75 (mini) 75 n 800 x 600 x 300 Wall

PFCU75R 75 y 1600 x 800 x 600 Floor

PFCU100R 100 y 1600 x 800 x 600 Floor

PFCU125R 125 y 1600 x 800 x 600 Floor

PFCU150R 150 y 2100 x 800 x 600 Floor

PFCU200R 200 y 2100 x 800 x 600 Floor

PFCU250R 250 y 2100 x 800 x 600 Floor

PFCU300R 300 y 2100 x 800 x 600 Floor

PFCU350R 350 y 2100 x 800 x 600 Floor

PFCU380R 380 y 2100 x 800 x 600 Floor

PA R T S L I S T

Power Factor Capacitors 3 Phase

Code400/415V

kVArDia (mm) Length (mm)

PFC0140 1 55 165

PFC01540 1.5 55 165

PFC0240 2 55 165

PFC02540 2.5 55 165

PFC0340 3 65 205

PFC0440 4 65 205

PFC0540 5 65 205

PFC07540 7.5 75 208

PFC1040 10 85 208

PFC1240 12.5 85 208

Resin Impregnated

Code415V kVAr

440V kVAr

Dia (mm) Length (mm)

PFC1052 6.25 7 85 190

PFC1252 8 9 85 190

PFC1244 10 12.5 85 265

PFC2052 12.5 14 85 265

PFC2552 15.5 17.5 85 265

PFC2044 17.8 20 85 265

PFC2244 20 22.5 85 265

PFC2544 22.5 25 85 265

PFC2844 25 28 85 265

Oil Impregnated

Code kVAr @ 415V

PFR06 6.25

PFR08 8.3

PFR12 12.5

PFR17 16.7

PFR25 25

PFR33 33

PFR50 50

PFR67 66.7

Harmonic Filter Reactors 7% 189 Hz

Brought to you by:Christchurch OfficePO Box 9022388 - 396 Tuam St, Phillipstown, Christchurch 8011New ZealandP +64 3 335 0366F +64 3 335 0980E switchboards@pdc.co.nz

Northern Region/AucklandPO Box 12 24930 Fairfax Ave, Penrose, Auckland 1061New ZealandP +64 9 526 7881F +64 9 579 8742E switchboards@pdc.co.nz