More information

Iron output reactors for AC operating mechanisms

Output reactors are used on the load side of frequency converters and motor currents flow through them.

Output reactors compensate capacitive charge-reversal currents with long cables and, in the case of long motor cables, limit the dv/dt at the motor terminals. This enables the use of longer motor supply cables:

• 200 m shielded motor cable
• 300 m unshielded motor cable

Use of iron-core output reactors:

• Operating mechanisms with standard and trans-standard asynchronous motors and a rated motor frequency (field weakening frequency) of up to 87 Hz and a maximum frequency of 200 Hz.
• Operating mechanisms with reluctance or permanently excited synchronous motors with a maximum frequency of 120 Hz.

Note on the versions Standard (Catalog LV 60):

The following generic parameters apply, which must not be exceeded:

• Maximum motor cable length 200 m, shielded cable
• Maximum motor cable length 300 m, unshielded cable
• Maximum motor cable cross-sections for performance class:
  • up to 2.2 kW/1.5 mm?
  • > 2.2 kW ? 7.5 kW/2.5 mm?
  • > 7.5 kW ? 11 kW/4 mm?
  • > 11 kW ? 22 kW/10 mm?
  • > 22 kW ? 30 kW/16 mm?
  • > 30 kW ? 37 kW/25 mm?
  • > 37 kW ? 50 kW/35 mm?
  • > 50 kW ? 75 kW/70 mm?
• Maximum clock frequency 8 kHz
• Maximum motor frequency of output reactor 200 Hz
• Maximum motor frequency of sinewave filter 100 Hz
• UN 3 AC 500 V ±5 %.

If these do not meet your requirements, versions in Standard modified or customized solutions are available. For more information contact "mdexx GmbH" in Bremen.
e-mail: Anfrage@mdexx.com