Electromagnetic stirrer of aluminium melt LIM 500
27.07.2018
Electromagnetic stirrer of aluminium melt LIM 550
19.07.2018For the first time, a power supply source of the classical design with a DC link and an inverter with IGBT transistors was used for MGDP-2,5 electromagnetic stirrers. As a result, it was possible to eliminate switching overvoltage, increase the mixing capacity and ensure high reliability of the power part.
Task:
Power supply and MGDP-2,5 electromagnetic stirrers operation modes control
Customer:
RUSAL Krasnoyarsk JSC, Casthouse No.1, mixers 2A and 2B
Project Year:
2015
Problems Prior to Implementation:
Frequent failures of control boards
Key Features:
- The frequency range of 0.5 — 1.5 Hz
- Total power – 180 kVA
- Quantity of phases – 2
- Hardware components – bipolar transistor modules
- Automatic water flow control unit
Result:
The coil works at a rated current
Automatic performance of the unit was improved
The problem of boards failure was eliminated
