Racks & modular UPS system

From a few kW to multi-MW, COMECA masters all the power electronics technologies and coffers you comprehensive energy conversion solutions. Relying on the expertise of our employees, we support customer projects for more than half a century. Our expertise includes special-purpose projects, management of global projects and provision of associated services.

ALIZET RAILWAY SIGNALLING RACKS

Alizet signalling racks are secure power supply units specifically designed to meet the power supply needs of railway signalling. They composed of a rectifier assembly, batteries and an inverter. Based on single-phase or three-phase mains supply, they provide secure power supply, available as direct current (24VDC, 48VDC) and alternating current (230VAC).

MODULAR UPS SYSTEM (RECTIFIERS, BATTERIES, INVERTERS)

The UPS (Uninterruptible Power Supply) system consists of a rectifier, batteries and an inverter, also known as RBO. The equipment is supplied with alternating current from the electrical system (single-phase or three-phase, depending on power values).

  • Rectifier module: the rectifier modules ensure power supply from the mains direct current as well as recharge and float charging of the related batteries.
  • Inverter module: the inverter assembly supplies permanent AC current free of disconnections or fluctuations, based on DC source supplied by rectifiers and the battery.

Alizet racks:

  • Proven switching technology
  • Natural convection
  • Life span > 30 years
  • Reliability, redundancy
  • Integration of modular converter racks for 24 and 48V DC
  • Inter-connectible racks

Modular UPS system:

  • On-demand study, design and configuration based on the desired DC/AC power balance and autonomy
  • Modular switching technology : the replacement of a rectifier module or inverter module takes place within minutes without any disruption of the system and without requiring the operator to reprogramme the module (fully automated parameter configuration).
  • N+1 or N+2 redundancy : N+1 redundancy (addition of one backup module) or N+2 (addition of 2 backup modules) allows the system to provide all the necessary power for use on a permanent basis.
  • An upgradeable power system
  • Integrated battery
  • Integrated DC distribution

Alizet modular bays are composed of the following sub-assemblies, developed by COMECA and certified by SNCF:

  • Convertisseurs AC/DC à Redresseur 230VAC/24VDC à découpage HF
  • Convertisseurs DC/DC à Redresseur 24V/24V à découpage HF
  • Convertisseurs DC/DC à Redresseur 24V/48V à découpage HF
  • Convertisseur DC/AC à Onduleur 24V/230V 670VA
  • Contrôleur MCA (Module de Contrôle Automatique)
  • Tensions de sortie : 24V, 48VDC / 230V AC
  • Degrés de protection : IP 20
  • 3 modes de fonctionnement sont disponibles : FLOATING, EGALISATION et TEST BATTERIE
  • Electronique de contrôle et d’interface
  • Un Automate intégré permet :
    • La gestion des modules redresseurs et des batteries.
    • Les mesures courant et tension de sortie
    • La gestion des Alarmes
  • Signalisation locale, afficheur LCD + 8 boutons
  • Signalisation distante sur boucles sèches
  • Historisation d’évènements
  • Technologie utilisée : technologie à IGBT (hautes fréquences)

NB:

  • 24 VDC power is supplied by 24V / 60A rectifier modules (maximum 16).
  • 230V secure supply is provided by 230V / 60VA inverters (maximum 7).
  • Storage is ensured by 24V batteries installed in the racks (4 different types of battery racks).

Modular UPS system:

  • Input voltage : 230V single-phase, or 400V three-phase + neutral
  • DC use module :
    • Standard output voltage: 24V 48V 110V 125V 220VDC
  • AC output use :
    • 230VAC single-phase or three-phase
  • Protection levels : IP 20 or IP 21
  • RAL : 5004 + 9006

Used technology: IGBT technology (high frequencies)

UPS modulaire :

  • Redundancy
  • By-pass
  • Isolation transformer
  • Integrated DC and AC distribution

Alizet racks:

  • SNCF and RATP approvals and qualifications

Applications

Industries

Ferroviaire

Railway

Renewable energy

Scientific research

Medical

Aeronautics

Militairy / Defense

Telecommunication

Wind equipment

Water treatment

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