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1. General characteristics
Regulator BS6-12 is microprocessor-based instrument for automatic power factor (cosϕ)
compensation in systems, with range of correction of up to 12 steps.
The instrument has been designed to ensure high accuracy in power factor correction as
well as optimum use of capacitor banks and contactors, even under conditions of noise
and highly distorted current waveforms.
The regulator can be installed in three phase power supplies 50/60Hz, and switched in
quadrature or direct, through a CT (current transformer) for acquisition of the line current.
The regulator can also be installed in single phase power supplies. All input circuits are
isolated from each other.
The front panel is provided with a 3 digit - 7 segment display for showing the
instantaneous values of cosϕ, voltage and line current: this avoids need to install other
panel meters (voltmeters, ammeters) on the power factor correction panel.
A full set of LED's on the front panel supplies information regarding the instrument status,
the capacitor banks enabled, the operating quadrant (inductive/ /capacitive) and activation
of automatic correction (C/K).
Through four buttons it is possible to show different measurements on the display,
program the instrument, operate manually on the capacitor banks or cancel the alarms.
The regulator is supplied with various protective features, through continuous monitoring of
the following quantities:
−
Line voltage: an alarm is generated when the voltage across the capacitors
exceeds the programmed value for a time greater than 30 minutes;
−
Line current: an alarm is generated when the line current exceeds the rated current
by +20%;
−
cosϕ: an alarm is generated if the cosϕ is not adequately compensated in the
programmed range within 15 minutes.
The alarms are eliminated automatically when the condition generating them disappears:
however, if more than 3 alarms occur within 1 hour, manual resetting of the alarm is
requested in order to signal a possible fault condition in the power factor correction
system.
TM
The TPDS
(True Phase Detection System) technology used in processing the voltage
and current signals allows the regulator to operate correctly and accurately even with
highly distorted current waveforms: by using sophisticated digital processing of the signals,
the instrument is able to extract the fundamental voltage and current components from all
signal components in order to assess the relative phase shift and therefore to correct the
reactive power.
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13. Données techniques
Alimentation
110/230 Vac ±10%
Fréquence
50/60 Hz
Puissance nominale
6 VA
Tension en entrée
80/500 Vac
De TA .../5A
Courant en entrée (isolé)
Surcharge permanente +20% puissance
absorbée 0.01 VA
Plage de fonctionnement
1-100% du courant nominal
De 0.85 ind. à 0.95 cap.
Set-point cos ϕ
précision ±1 digit
Affichage
3 chiffres - 7 segments à led
Signalisation de: batteries insérées -
Led
mesures instantanées V, I, Cos ϕ - état
appareil
Délais insertion batteries
De 5 à 60 sec.
Délais désinsertion batteries
De 5 à 60 sec.
Nombre de batteries (gradins)
6/12 selon le modèle
5 A – 250 Vac sur charge résistive dispositif
Contacts relais
antiparasites
Bornes
Extractibles (en dotation)
Relais alarme
type NC, contacts 5 A - 250 Vac
Température de service
0 +55 °C
Température de stockage
-10 +70 °C
Classe de protection
IP41
Standards
EN61010-1, EN50081-2, EN50082-2
Poids
1.0 kg
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