Pentair P42B0007A2-01, Electronic Manual

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9.10 Reactors And Filters
Variable frequency drives produce voltage spikes that are
a function of voltage rise-time and length of motor cable.
In extreme cases peak voltage may exceed three times
the nominal operating voltage.
Reactors
A reactor is a resistance and inductance device that
reduces voltage spikes. It does this by both increasing the
voltage rise-time and improving the impedance match of
the cable and motor.
Filters
A filter combines a reactor with a capacitor network. The
capacitors absorb a portion of the voltage spikes. This
further reduces the peak voltage seen at the motor.
When to Use a Reactor or Filter
The chart below is a general guideline when choosing
between using a filter or reactor.
Motor Type
Lead Length
up to 50’ 50’ to 150’ 150’ to 1000’
230 V 460V 230V 460V 230V 460V
NEMA Above-Ground
Std. Efficiency
-
-
R
R
F F NEMA Above-Ground
Premium Efficiency
-
Submersible R R F
R = Reactor F = Filter
The following list indicates a greater need for filters
and reactors:
• Long motor leads are used
• Standard efficiency or submersible motors are used.
• The cost of replacing the motor is prohibitive.
• Using a submersible motor with a voltage rating
greater than 230V.
• The quality and/or age of the motor is unknown.
• Condition of wiring and/or power quality is unknown.
9.9 PPC3 and PPC5 Tank Sizing
These instructions are only for systems that require
tanks. Pressure tanks are generally required to maintain
system pressure during periods of low or no demand.
Tank pre-charge must be less than the pressure set point
– wake up deviation.
Tank can be sized using Boyle’s law (V1 x P1 = V2 x P2).
Units are in gallons and PSI.
Typically tanks are sized for approximately 20% of pump
capacity. For example, a 150 gpm pump typically requires
30 gallon total tank size.
Total Tank Size x (Pr14.7)
__
Total Tank Size x (Pr14.7)
(S14.7 – Wake Up Deviation) (S14.7)
Drawdown =
Reactors
Open Design
230 or 460 V
Model
NEMA 1
230 or 460 V
Model
Rated
Amps
NEMA 1
575 V
Model
Rated
Amps
KDRA1P KDRA1PC1 3.4 KDRA31PC1 2.7
DDRA2P KDRA2PC1 4.8 KDRA35PC1 3.9
KDRA3P KDRA3PC1 7.6 KDRA33PC1 6.1
KDRA4P KDRA4PC1 11 KDRA34PC1 9
KDRB1P KDRB1PC1 14 KDRA36PC1 11
KDRD1P KDRD1PC2 21 KDRD31PC2 17
KDRD2P KDRD2PC2 27 KDRD32PC2 22
KDRD3P KDRD3PC2 34 KDRD35PC2 27
KDRD4P KDRD4PC2 40 KDRD33PC2 32
KDRC1P KDRC1PC2 52 KDRD34PC2 41
KDRF1P KDRF1PC3 65 KDRC31PC2 52
KDRF2P KDRF2PC3 77 KDRF31PC3 62
KDRF3P KDRF3PC4 96 KDRF32PC3 77
KDRH1P KDRH1PC4 124 KDRF33PC4 99
KDRI1P KDRI1PC4 156 KDRH31PC4 125
KDRI2P KDRI2PC4 180 KDRI31PC4 144
KDRG1P KDRG1PC4 240 KDRI32PC4 192
KDRG31PC4 242
Filters
NEMA 1, 230, 460 or 575 V
Model
NEMA 1, CUL Listed
Model Rated Amps
KLC4BE KLCUL4BE 4
KLC6BE KLCUL6BE 6
KLC8BE KLCUL8BE 8
KLC12BE KLCUL12BE 12
KLC16BE KLCUL16BE 16
KLC25BE KLCUL25BE 25
KLC35BE KLCUL35BE 35
KLC45BE KLCUL45BE 45
KLC55BE KLCUL55BE 55
KLC80BE KLCUL80BE 80
KLC110BE KLCUL110BE 110
KLC130BE KLCUL130BE 130
KLC160BE KLCUL160BE 160
KLC200BE KLCUL200BE 200
KLC250BE KLCUL250BE 250
SECTION 9: PPC Series 50/60 Hz Variable Frequency Drives
PPC Series
VFD