Oil Press Electrical Requirements

Introduction

Understanding the electrical requirements of your hydraulic oil press is crucial for safe and efficient operation.

Basic Electrical Requirements

Voltage Specifications

• 220V Single Phase (common in many countries)
• 380V Three Phase (industrial standard)
• 415V Three Phase (some regions)
• Frequency: 50Hz or 60Hz
• Voltage can be customized at no extra charge

Power Consumption

• Motor Power: All Haonuo models: 2.2 KW
• Idle: 0.5-1.0 KW
• Pressing: 1.5-2.2 KW
• Peak: Up to 3.0 KW (during pressure build-up)

Current Requirements

• Single Phase (220V): Running 10-15 A, Starting 20-30 A
• Three Phase (380V): Running 5-8 A, Starting 10-15 A
• Recommended Circuit Breaker: Single phase 30 A, Three phase 16 A per phase

Generator Requirements

Generator Capacity

Model	Single Phase	Three Phase
HN325	5 kVA	5 kVA
HN355	5.5 kVA	5.5 kVA
HN426	5.5 kVA	5.5 kVA
HN480	5.5 kVA	5.5 kVA
HN500	7 kVA	7 kVA

Safety Margin

• Add 20-30% for starting current
• Consider other equipment on the same circuit
• Account for voltage drops

Recommended Generator Size

• HN325/HN355: 6-7 kVA
• HN426/HN480: 7-8 kVA
• HN500: 8-10 kVA

Generator Selection Criteria

1. Type: Diesel (most common), Gasoline, Solar
2. Quality: Reputable brands, inverter-type recommended
3. Features: Voltage regulation, overload protection, automatic start/stop

Power Supply Configuration

Grid Connection

Single Phase Connection: L1 -> Circuit Breaker -> Motor N -> Motor PE -> Equipment Frame

Three Phase Connection: L1, L2, L3 -> Circuit Breaker -> Motor N -> Control Panel PE -> Equipment Frame

Wiring Requirements

Distance	Single Phase (220V)	Three Phase (380V)
10m	2.5 mm2	2.5 mm2
20m	4 mm2	2.5 mm2
30m	6 mm2	4 mm2
50m	10 mm2	6 mm2

Control Panel Components

• Main switch
• Circuit breakers
• Motor starter
• Control buttons
• Emergency stop
• Indicator lights

Safety Considerations

Electrical Safety

• Wear insulated gloves
• Use insulated tools
• Follow lockout/tagout procedures

Voltage Fluctuations

• Low voltage: Motor overheating, reduced performance
• High voltage: Motor damage, component failure
• Solutions: Voltage stabilizer, surge protector

Lightning Protection

• Lightning rod installation
• Surge protection devices
• Grounding system

Backup Power Solutions

UPS (Uninterruptible Power Supply)

• Applications: Control panel backup, emergency shutdown
• Sizing: 500-1000 VA typically sufficient

Solar Power Systems

• Applications: Off-grid locations, sustainable operations
• Considerations: Solar panel sizing, battery storage, backup generator recommended

Energy Efficiency Tips

Power Management

• Run during off-peak hours if possible
• Batch processing to reduce startup cycles

Cost Calculation

• Energy Cost per Day = (Power Consumption x Hours x Rate) / 1000
• Example: 2.0 KW x 8 hours x local rate/KWh

Conclusion

Proper electrical configuration is essential for safe and efficient operation of hydraulic oil presses. For personalized electrical configuration advice, contact Haonuo’s technical support team.