POWER FACTOR
CORRECTION
WWW.PDC.CO.NZ
W H AT I S P O W E R FA C T O R ?
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.
HOW DOES IT AFFECT MY BUSINESS?
WHAT CAN I DO TO PREVENT THIS?
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.
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.
HOW CAN PDC
HELP?
For overloaded sites Power Factor Correction is one
of the quickest ways to reduce load and may help
prevent costly infrastructure upgrades.
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.
CONTACT PDC FOR MORE INFORMATION AND SPECIALISED ADVICE ON
POWER FACTOR CORRECTION.
POWER-VAr
P O W E R FAC T O R C O R R E C T I O N
SYSTEM
The POWER-VAr Power Factor Correction System
by PDC is manufactured in New Zealand for
industrial and commercial three phase 400/415V
installations.
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.
WWW.PDC.CO.NZ
S P E C I F I C AT I O N
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
PA R T S L I S T
Power Factor Capacitors 3 Phase
Resin Impregnated
Code
PFC0140
PFC01540
PFC0240
Oil Impregnated
400/415V
kVAr
Dia (mm)
Length (mm)
Code
415V
kVAr
440V
kVAr
Dia (mm)
Length (mm)
1
55
165
PFC1052
6.25
7
85
190
1.5
55
165
PFC1252
8
9
85
190
2
55
165
PFC1244
10
12.5
85
265
PFC02540
2.5
55
165
PFC2052
12.5
14
85
265
PFC0340
3
65
205
PFC2552
15.5
17.5
85
265
PFC0440
4
65
205
PFC2044
17.8
20
85
265
PFC0540
5
65
205
PFC2244
20
22.5
85
265
PFC07540
7.5
75
208
PFC2544
22.5
25
85
265
PFC1040
10
85
208
PFC2844
25
28
85
265
PFC1240
12.5
85
208
Harmonic Filter Reactors 7% 189 Hz
Code
Power Factor Control Relay
Code
PFCR06
PFCR14
Contactor
steps
Size (mm)
6
144 x 144
14
144 x 144
kVAr @ 415V
PFR06
6.25
PFR08
8.3
PFR12
12.5
PFR17
16.7
PFR25
25
PFR33
33
PFR50
50
PFR67
66.7
Power-VAr Power Factor Correction
Systems by PDC
Brought to you by:
Size( H x W x D) mm
Floor/
Wall
n
800 x 600 x 300
Wall
n
800 x 600 x 300
Wall
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
Code
kVAr
PFCU30 (mini)
30
PFCU45 (mini)
60
PFCU75 (mini)
Reactors
Christchurch Office
PO Box 9022
388 - 396 Tuam St, Phillipstown, Christchurch 8011
New Zealand
P +64 3 335 0366
F +64 3 335 0980
E switchboards@pdc.co.nz
Northern Region/Auckland
PO Box 12 249
30 Fairfax Ave, Penrose, Auckland 1061
New Zealand
P +64 9 526 7881
F +64 9 579 8742
E switchboards@pdc.co.nz