Three-phase harmonic blockREACTOR with high linearity, designed and sized for a high harmonic load and tuned to the capacitors.
The RA-type Reactors ensure a lengthy service life, extremely low losses and low noise emission during operation.
The RA-type reactors have a tuning frequency of 189 Hz (p=7%), but other tuning frequencies can also be made on request; of course, in addition to the standard tuning frequency the main ones are 134 Hz(p=14%) and 210 Hz(p=5.67%).
Especially suited to make modular units (see CTF) and automatic power factor correction equipment (see ERAF) for networks with a harmonic load in association with power factor correction capacitors. With the Capacitors, the RA series three-phase reactors have been conceived and designed to be installed in networks with harmonic distortion since their working principle consists of translating the resonance frequency of the installation under the harmonic of a lower magnitude so as to avoid triggering phenomena of resonance.
The CT series modular units have been designed to be installed extremely easily in automatic power-factor correction equipment.
The CTF series modular units are composed of:
Tuning frequency: 189Hz(p=7%);
on request: 134Hz(p=14%) -210Hz(p=5.67%).
Harmonic distortion in current permitted in continuous operation: 30%In a 250 Hz e 15% In a 350Hz. Linearity: 2In.
Max harmonic distortion in voltage permitted in network (THD%)=5%.
The CTF series modular units have been conceived and designed to be installed in networks with harmonic distortion since their working principle consists of translating the resonance frequency of the installation under the harmonic of a lower magnitude so as to avoid triggering phenomena of resonance.
Automatic power factor regulator with microprocessor management for 6 and 12 steps activation, with THD I% control regulator, RS485 serial connector available on the base of the model.
This device has been designed with a technology to elaborate also very distorted signal able to assure an accurate control of plant electrical values like voltage, current, power factor, internal temperature of the equipment, voltage harmonic distortion.
All electrical measurements are made by a complete analysis through FFT (Fast Fourier Transformer) of the wave shape with floating-point
Using a reliable calculation algorithm, the regulator is able to operate the capacitor steps, switching-in/ switching-off the reactive power needed at the fixed aim, reducing drastically the number of switchings and using in an homogenous way the various steps.
Four keys allows access to parameterizations and to the dedicated measures. The measures are made in real effective value (True RMS) calculating the power factor directly between voltage and current.
The setting up of each battery is made simply switching-in independently its rated value, for each step that must be set, allowing an easy comprehension and reading of the set parameters.
Further to the normal functions the EPF12T PF regulator shows the network and in case of a signal highly EPF 12T440 distorted it protects the capacitor batteries disconnecting them from the network; it controls also the internal temperature of the equipment and in case of too elevated internal temperature, it sequently disconnects the switched-in batteries. It records alarm situations and the number of switchings made by each battery, to be able to verify their wear.
All the batteries can be set in “FIX” mode, that is to say not operated by the device in an automatic mode, but fixed in the line and always protected in case of critical situations.
In the full respect of current standards it also checks eventual micro-interruptions and/or voltage “holes” protecting capacitors, re-energizing them only after discharge transients.
All the parameterizations and information, are available on the RS 485 serial connectors.