EPF E-Power factor controller
Automatic power factor controllers with microprocessor designed for signal processing of strongly distorted waveform to ensure accurate control of the electrical parameters of the plant.
All measurements are made starting from the analysis of the waveform using FFT (Fast Fourier Transform) algorithm in floating point to ensure the maximum precision.
In addition to the normal power factor management functions, the device monitors the network and preserve the capacitor banks by disconnecting them in cases of high harmonic distortion or in case of mains voltage interruptions or drops. The microprocessor management allows to distribute the insertion/disconnection of the capacitive banks extending the life time.
The software allows to set each battery with the nominal value of the capacitor and also to set advanced functions such as battery fixed (useful for fixed rephasing), thresholds of temperature for ventilation control and relay and / or trip intervention, TA setting, trip times activation / deactivation and reconnection time.
The measures of Power Factor (Inductive / Capacitive), RMS Voltage, RMS Current, Delta Power (Inductive, Capacitive), THDI and temperature are displayed. The dedicated display digit, NAV, allows the immediate detection of the type of the active alarm.
|Power supply||110Vac -20% +10% (PF.010.102)
230Vac -20% +10% (PF.010.101)
440Vac -20% +10% (PF.010.100)
|Network frequency||50/60 Hz settable|
|Current input||2.5 – 110% Ie|
|Operation||2 or 4 settable quadrants|
|Power factor control||0.85 Ind to 0.95 Cap|
|Measurements||Voltage,current,power factor, power, temperature,THDI|
|Display||4 characters 7 segments – red|
|Led||Relay Output status;MAN/AUT; Ind-Cap; Allarm|
|Relay outputs for batteries||4|
|Contact range||5A 250V (AC1), max switching 400V|
|Terminal board||Standard, extractable|
|Operating temperature||-20°C + 55°C|
|Frontal protection degree||IP41 (IP54 with optional cover)|