Rectifier Systems - THYROTRONIC

for Industrial Applications

Rectifier System - THYROTRONIC

THYROTRONIC: Rectifiers for Stationary Battery Systems

The protection of electrical loads against power failure is often carried out by battery backed up DC power supplies, providing electrical energy to important loads during mains supply, as well as during mains failure.

Battery backed up DC power supplies have, over several decades, proved extremely reliable and economical.

The reliability of a battery backed up DC power supply is defined by the quality of the battery used, as well as the reliable operation of the rectifier.

The THYROTRONIC rectifier range developed by BENNING is especially intended for use as battery backed up power supplies and feature very high reliability and a compre- hensive monitoring concept.

THYROTRONIC rectifiers are operating with a controlled output characteristic (IU-characteristic line in accordance with DIN 41773).

The output voltage is kept constant to the set value with a permissible deviation of ± 0.5 % within a load range between 0 % and 100 % of the unit current.

Mains voltage fluctuations of ± 10 % and mains frequency fluctuations of ± 5 % will be controlled automatically.

As an energy storage mainly valve regulated or vented lead acid batteries are used. Nickel-cadmium batteries are used in extreme ambient conditions.

Range of applications

  • Power plants
  • Substations
  • Railway equipment
  • Offshore projects
  • Oil and gas pipeline systems
  • Hospitals

General Features

General Features

  • fully-controlled thyristor three phase bridge
    • 6 pulse (standard)
    • 12 pulse (optional)
  • power range: 0.6 kW to 1 MW
  • input voltages [VAC]
    • 230 ± 10 % 1-phase
    • 240 ± 10 % 1-phase
    • 208 ± 10 % 3-phase
    • 400 ± 10 % 3-phase
    • 480 ± 10 % 3-phase
    • (others on request)
  • output voltages [V]
    • 24, 48, 60, 110/125, 220/240
    • (higher on request)
Fully controlled thyristor-
based three-phase 
bridge connection
Comparison of the harmonic input current with 
6-pulse and 12-pulse thyristor-based rectifiers

Maximum Availability

Maximum Availability

  • auto. temperature-controlled charging
  • battery availability test / -circuit test
  • galvanically isolated
  • high quality of output power
  • n+1 redundancy
  • extensive signaling and 
monitoring functions

Highest Economic Efficiency

Highest Economic Efficiency

  • suitable for lead and NiCd batterie senergy-efficient

Further Information

Case Studies

Your contact persons

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POL BENNING Power Electronics Sp. z o.o.

+48 (0) 22 / 7 57 84 53


Korczunkowa 30
05-503 Glosków

POL BENNING Power Electronics Sp. z o.o.
Piotr Białoskórski




Korczunkowa 30
05-503 Glosków