RUSAL. NORTH URAL BOXITE MINE. MINE CHEREMUKHOVSKAYA-DEEP. CONVERTER FOR MINE LIFTING MACHINE

05.10.2018

Our company completed works on commissioning of the previously supplied silicon-controlled rectifier for the shaft main hoist motor.
Scope of delivery:

  1. silicon-controlled rectifier for armature circuit power supply;
  2. silicon-controlled rectifier cabinet for the motor excitation winding power supply;
  3. frequency converter cabinet for the ventilation motor power supply;
  4. auxiliary electric drives cabinet;
  5. control panel for control and monitoring of the mine hoist operation;
  6. brake control unit.

The main technical specifications of the silicon-controlled rectifier for the armature circuit are as follows:

Parameter Value
Rated output current, A 2200
Rated output voltage, V 930
Operation mode version reversible
Rectification circuit 12-pulses,
three-phase bridge circuit
Connection to power supply network Transformer connection
Type of cooling Forced air cooling from build-in fans
Service blocks Embedded autonomous alarm signals recorder
Protection Rating IP21
Access for maintenance Two-side access