PRAG 7.5KVA/48V Heavy-Duty Inverter H-Series

PRAG 7.5KVA/48V Heavy-Duty Inverter H-Series

Model: PT-INV-7.5KVA/6000W 48V

Overview:

The PRAG 7.5KVA/48V H-Series is a robust, high-performance Pure Sine Wave Inverter/Charger designed for demanding residential, commercial, and industrial applications. Offering 6000W continuous power and a 18000W surge rating (for up to 20 seconds), it is ideal for running large electrical systems and motor-driven equipment with high surge requirements, such as air conditioners, pumps, and large appliances. It combines an inverter, battery charger, and AC auto-transfer switch into one seamless system with a peak efficiency rating of 88%, ensuring consistent, reliable power.

The inverter is designed to handle demanding inductive loads without causing harm to sensitive equipment, thanks to its pure sine wave output and superior surge capability. With a maximum charging current of up to 120A (depending on model), it also supports fast battery charging, ensuring that the system is ready to provide backup power when needed.

Key Features:

1. Pure Sine Wave Output

• Smooth and Clean Power: The inverter provides a pure sine wave output, which is necessary for sensitive equipment like computers, medical devices, and audio/visual electronics.
• Bypass Mode: In case of utility or generator power failure, the system can switch seamlessly to bypass mode without affecting the load, ensuring continuity of power.

2. High Surge Capacity & Overload Protection

• Surge Rating: With a 18000W surge capacity, the inverter can handle large motor starts or sudden power surges for up to 20 seconds, making it ideal for starting electric motors and high-wattage appliances.
• Overload Protection: The inverter can handle up to 300% overload of its continuous power capacity for up to 20 seconds, providing added protection during sudden load increases.

3. Intelligent Battery Charging & Management

• 4-Step Charging System: Includes a 4-step intelligent charging system (including desulphation for batteries) to ensure the best charging process for various battery types.
• Charging Current: The system supports up to 120A charging current, which can be adjusted from 0%-100% based on requirements.
• Battery Recovery Point (BRP): The inverter has a 13Vdc inverter battery recovery point, which is suitable for renewable energy applications and can safely restore battery charge from a low state.
• Battery Priority Mode: Allows the system to prioritize battery usage in UPS configurations, making it ideal for backup power situations.
• Desulphation Mode: Automatic battery desulphation at 15.5V for 4 hours to restore and prolong battery life.

4. Energy Efficiency & Power Factor Correction (PFC)

• Peak Efficiency: The inverter operates at a peak efficiency of 88%, ensuring that less energy is wasted and more power is available for use.
• Power Saving Mode: In low power demand situations, the inverter enters a power-saving mode to reduce energy consumption.
• Power Factor Correction: The inverter features PFC, which improves energy efficiency by reducing power wastage and stabilizing voltage.

5. Fast Transfer Time & Seamless Power Supply

• Transfer Time: With a typical transfer time of 10ms, the system switches quickly between grid power and battery power, ensuring no noticeable power interruptions for sensitive devices.
• Load Protection: The inverter includes a 15-second delay before switching back to AC utility power after a power outage, providing additional protection for sensitive loads when used with a generator.

6. Harsh Environment Durability

• Rugged Design: Built to operate reliably in tough conditions, the inverter is designed to handle the stresses of industrial environments, outdoor use, and renewable energy applications.
• Automatic Self-Diagnostic (ASD): The inverter has an automatic self-diagnostic function, making maintenance easier by helping to quickly identify any issues.

Technical Specifications:

Inverter Output:

• Continuous Output Power: 6000W
• Surge Rating (20s): 18000W
• Capable of Starting Electric Motor: 6HP
• Output Waveform: Pure Sine Wave (same as input in bypass mode)
• Nominal Efficiency: >88% (Peak)
• Line Mode Efficiency: >95%
• Power Factor: 0.9–1.0
• Nominal Output Voltage: 220V–240V AC
• Output Voltage Regulation: ±10% RMS
• Output Frequency: 50Hz ± 0.3Hz
• Short Circuit Protection: Yes, with Current Limit Function (Fault after 1 second)
• Typical Transfer Time: 10ms max
• Total Harmonic Distortion (THD): <10%

DC Input:

• Nominal Input Voltage: 48VDC
• Minimum Start Voltage: 42.0VDC
• Low Battery Alarm: 42.0VDC / 44.0VDC
• Low Battery Trip: 40.0VDC / 42.0VDC
• High Voltage Alarm & Fault: 64.0VDC
• High DC Input Recovery: 62.0VDC
• Low Battery Voltage Recovery: 13.0VDC
• Idle Consumption (Search Mode): < 25W (when Power Saver mode is on)

Charging Features:

• Input Voltage Range:
  • Wide: 90V–135VAC / 164V–243VAC
  • Narrow: 100V–135VAC / 194V–243VAC
• Input Frequency Range:
  • Narrow: 47–55Hz for 50Hz, 57–65Hz for 60Hz
  • Wide: 43Hz–50Hz for 50Hz, 50Hz–70Hz for 60Hz
• Max Charge Rate: 60 + 5A
• Overcharge Protection Shutdown: 15.7V for 12VDC (adjustable for 24V and 48V versions)
• Charger Curve: 4-step digital controlled, including Desulphation for battery maintenance.

Bypass & Protection:

• Input Voltage Waveform: Sine wave (Grid or Generator)
• Low Voltage Trip: 184V/140V ±4%
• High Voltage Trip: 253V/270V ±4%
• Max Input AC Voltage: 280V AC
• Nominal Input Frequency: 50Hz or 60Hz (Auto detect)
• Low Frequency Trip: Narrow: 47Hz ±0.3Hz (50Hz), 57Hz ±0.3Hz (60Hz)
• High Frequency Trip: Narrow: 55Hz ±0.3Hz (50Hz), 65Hz ±0.3Hz (60Hz)
• Bypass Breaker Rating: 40A
• Transfer Switch Rating: 40A (UL Certified)
• Max Bypass Current: 40A

Mechanical Specifications:

• Mounting: Wall mount
• Dimensions (L x W x H): 720 x 350 x 300 mm
• Weight: 40 kg
• Shipping Dimensions (L x W x H): 760 x 320 x 310 mm
• Shipping Weight: 43 kg

Display & Warranty:

• Display: Status LEDs and optional LCD
• Standard Warranty: 1 Year