Power Supply Requirements for Briquetting Presses

Briquetting presses demand stable and robust electrical systems to support their high-power compression cycles. The specific requirements vary by machine type and capacity, but key considerations include:

1. Voltage & Phase Requirements

• Standard Models: Typically require 380-415V, 3-phase AC power (industrial standard).

• Large Hydraulic Presses: May need 480V or higher for heavy-duty operation.

• Smaller Units: Some biomass presses run on 220V single-phase, but with limited capacity.

2. Consistent Voltage Stability

• Tolerance: ±5% voltage fluctuation maximum to prevent motor damage.

• Solutions: Voltage stabilizers or isolation transformers may be necessary in areas with unstable grids.

3. High Starting Current (Inrush)

• Mechanical Presses: Experience 3-5x rated current during startup (requires soft starters/VFDs).

• Screw Presses: Need star-delta starters to reduce initial power surge.

4. Power Capacity (kW Demand)

• Small Biomass Presses: 15-30 kW (intermittent duty).

• Heavy-Duty Metal Briquetting: 50-200 kW (continuous duty).

• Hydraulic Systems: Require additional 15-25% buffer capacity for pumps.

5. Backup Power Considerations

• Critical for: Continuous production lines to avoid mid-cycle stoppages.

• Options: Diesel generators or UPS systems for brief interruptions (<5 sec transfer time).

6. Safety & Compliance

• Circuit Protection: Fast-acting breakers (e.g., Class D fuses) for short-circuit protection.

• Grounding: Low-impedance earthing (<1 ohm) to prevent electrical hazards.

• Certifications: Must comply with IEC 60204-1 for industrial equipment safety.

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