Sirius advance

Standard features

Voltage stabilisation Independent phase control
Output voltage selectable via display, PC and/or Ethernet* from 210 to 255V (L-N) from 360 to 440V (L-L)
Output voltage accuracy ±0,5%
Frequency 50Hz ±5% or 60Hz ±5%
Admitted load variation Up to 100%
Admitted load imbalance 100%
Cooling Natural air ventilation. Above 35°C aided with fans
Ambient temperature -25/+45°C
Storage temperature -25/+60°C
Max relative humidity 95% (non condensing)
Admitted overload 200% 2 min.
Harmonic distortion None introduced
Colour RAL 7035
Protection degree IP 21
User interface 10″ touch panel (multilingual)
remotely available via VNC
Reactive power regulator
Installation Indoor
Regulator overload protection Digital control
Communication system Ethernet / USB / MODBUS TCP/IP
Overvoltage protection Class I input surge arrestor
Class II output surge arrestor
Optimal voltage return through supercapacitors
in case of blackout
Total protection and by-pass kit Input automatic circuit breaker
By-pass switch made of an interlocked
automatic circuit breaker
Output interlocked motorized automatic circuit
breaker with protection against overload,
overvoltage, undervoltage, phase sequence
error and phase failure
Integrated automatic power factor correction system Based on high energy density metallised poly-propylene three-phase capacitors (Un = 525V)
Three-phase blocking reactor (tuning frequency – 180Hz)

* The output voltage can be adjusted by choosing one of the indicated values.
Such choice sets the new nominal value as a reference for all the stabilizer parameters.

  • Input isolating transformer
  • EMI/RFI filters
  • Neutral point reactor

Sirius Advance voltage stabilizers derive from the SIRIUS type, of which they maintain the main technical characteristics.

The standard integration of some functions and accessories usually offered as optional, complete and enrich the equipment.

The additional features are:

  • Input automatic circuit breaker;
  • Bypass switch via an interlocked automatic circuit breaker;
  • Output interlocked motorized automatic circuit breaker;
  • Integrated automatic power factor correction system.

The input automatic circuit breaker (QF1) ensures protection against failure and/or short-circuits inside the unit.

The bypass automatic circuit breaker (QF2) protects the line supplying the load against overload and shortcircuits in bypass condition.

The output motorized automatic circuit breaker (QF3), interlocked with the bypass switch, protects against overload, short-circuit, overvoltage, undervoltage, phase sequence error and phase failure.

The integrated automatic Power Factor Correction system maintains the power factor value (cos φ) to a high level ensuring the known advantages for the users but also affecting the sizing of the stabilizer. The PFC system exploits high energy density metallised polypropylene three-phase capacitors (Un=525V) exclusively thus guaranteeing robustness and reliability. The addition of blocking reactors (detuned filters) eliminates undesired harmonics and protects the capacitors.

The reactive power controller is mounted on the external control synoptic panel.

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