Designed for three-phase power supply to electrical receivers, installed in underground mines hazardous with gas (methane) and/or dust, as well as to provide protection against current leakage and overcurrent on low voltage lines.
Manufactured both in basic Corum Group version and in accordance with Customer’s technical requirements, providing an individual approach to each client.
Use of electrical steel with specific losses of not more than 1.20 W/kg allows achieving low constant active energy losses indicators – transformers no-load losses. Actual no-load losses of Corum substations are 7-15% lower than those of other manufacturers analogues.
Use of vacuum or gas-insulated switching devices significantly increases the switching resource and increases product explosion safety.
Use of microprocessor-based protection and control units with an extended protection set significantly increases the functionality and localize emergency cases at the initial stage.
|Nominal rated power, kV·A||250|
|Nominal rated voltage on higher side (ВН), V||6000 or 10 000|
|Nominal rated voltage on lower side (НН), V||3300 or 1200 or 1200/660 or 660/400 or 400|
|Adjustment range||±5% or ±10%|
|Short-circuit voltage, %||3,6|
|No-load losses, W||950|
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