PRAG 4KVA/48V Heavy-Duty Inverter H-Series

PRAG 4KVA/48V Heavy-Duty Inverter H-Series

Model: PT-INV-4KVA 48V

Overview:

The PRAG 4KVA/48V Heavy-Duty Inverter H-Series is a high-performance inverter/charger system designed to meet the demands of both residential and commercial applications. Featuring advanced technology, high efficiency, and robust protection features, this system provides clean and stable pure sine wave output, ideal for powering sensitive equipment such as computers, medical devices, and office machinery. The inverter also includes an intelligent 4-step charging system, multi-stage protection, and fast transfer capabilities, ensuring seamless, uninterrupted power delivery.

With a peak conversion efficiency of 88%, the PRAG 4KVA/48V inverter excels at handling inductive loads, offering up to 300% surge capacity for up to 20 seconds. This makes it suitable for applications requiring high surge power, such as starting electric motors (up to 3HP). Additionally, the system is designed for use in renewable energy systems, supporting a variety of battery types and ensuring optimal battery performance and longevity.

Key Features:

1. Pure Sine Wave Output

• Stable Power: Delivers clean and stable pure sine wave output, making it ideal for sensitive electronics and appliances that require a smooth power supply to avoid damage.
• Bypass Mode: When grid or generator power is available, the inverter can bypass and pass the utility power directly to the load, ensuring no interruption in power supply.

2. Advanced Charging & Battery Management

• 4-Step Intelligent Charging: Includes a sophisticated 4-step charging system for battery health, including desulphation for flat or sulfated batteries. This ensures that the batteries are always maintained for optimal performance.
• Battery Priority Mode: Allows the system to prioritize battery power for uninterrupted UPS (Uninterruptible Power Supply) functionality.
• Adjustable Charging Current: Up to 120A (50A for 24V, 30A for 48V), making it adaptable to various battery sizes and charging needs.
• Depth of Discharge (DOD): Adjustable settings from 50%, providing flexibility in battery usage for longer life and reliability.

3. Surge Capacity & High Power Factor

• High Surge Capacity: Capable of handling 300% surge of continuous output for 20 seconds, ideal for motor-driven equipment or other high-demand loads at start-up.
• Power Factor Correction (PFC): Optimizes the system’s efficiency and reduces energy wastage, ensuring better performance and energy savings.

4. Fast Transfer Time & Load Protection

• Fast Transfer Time: 8ms typical transfer time between utility and battery power ensures seamless power continuity with no noticeable disruption in power supply.
• Load Protection: Includes short-circuit protection with a current-limiting function and a transfer delay of 15 seconds before switching back to grid power, protecting sensitive loads and preventing damage when using with generators.

5. Energy Efficiency & Power Saving

• Energy Saving Mode: Reduces power consumption when the inverter is in idle or standby mode, enhancing overall system efficiency and reducing electricity costs.
• Idle Consumption: As low as < 25W in power saver mode.

6. Built for Harsh Environments

• Durable Design: Engineered for tough environments, the inverter is reliable under harsh conditions and can operate across a wide range of temperatures.
• Automatic Self-Diagnostics: Built-in self-diagnostic functions help in identifying potential issues, reducing downtime and the need for manual troubleshooting.

Technical Specifications:

Inverter Output:

• Continuous Output Power: 3000W
• Surge Rating (20s): 9000W
• 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: 10.5VDC
• Low Battery Alarm: 11.0VDC
• Low Battery Trip: 10.5VDC
• High Voltage Alarm & Fault: 16.0VDC
• Recovery Voltage: 15.5VDC
• Idle Consumption (Search Mode): < 25W when Power Saver mode is on

Charge Features:

• Input Voltage Range:
  • Wide: 90V–135VAC / 164V–243VAC
  • Narrow: 100V–135VAC / 194V–243VAC
• Input Frequency Range:
  • Narrow: 47-55Hz for 50Hz or 57-65Hz for 60Hz
  • Wide: 43Hz-50Hz / 50Hz-70Hz
• Max Charge Rate:
  • 50A for 24V / 30A for 48V
• Overcharge Protection Shutdown: 15.7V for 12V (for 24V and 48V, multiply appropriately)
• Charging Profile: 4-step digital controlled, including Desulphation at 15.5V for 4 hours 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 Freq Trip: Narrow: 47Hz ±0.3Hz (50Hz) / 57Hz ±0.3Hz (60Hz)
• High Freq Trip: Narrow: 55Hz ±0.3Hz (50Hz) / 65Hz ±0.3Hz (60Hz)
• Output Short Circuit Protection: Circuit breaker
• Bypass Breaker Rating: 30A
• Transfer Switch Rating: 30A (UL Certified)

Mechanical Specifications:

• Mounting: Wall Mount
• Dimensions (L x W x H): 388 x 341 x 200 mm
• Weight: 27 kg
• Shipping Dimensions (L x W x H): 550 x 320 x 310 mm
• Shipping Weight: 29 kg

Display & Warranty:

• Display: Status LEDs / Optional Status LEDs + LCD
• Standard Warranty: 1 Year