Product Characteristics
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Input Characteristics
Rated DC input voltage of 48V, supporting an ultra-wide voltage range (42V-100V). It is capable of adapting to extremely low voltage scenarios as low as 42V, ensuring stable output even under battery under-voltage conditions.
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Output Characteristics
Rated output power 20kW, output voltage 380VAC (three-phase), frequency adjustable 50Hz/60Hz. Pure sine wave output (THD ≤3% for linear loads), dynamic response time ≤50ms, and efficiency ≥88%.
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Line-frequency Transformer
Utilises a line-frequency isolation transformer to achieve complete AC/DC isolation, effectively suppressing harmonic interference and enhancing system surge resistance. Supports inductive loads such as motors and water pumps.
Technical Superiority
- Ultra-low voltage input capability: Intelligent boost technology ensures full power output even during deep battery discharge.
- Electromagnetic compatibility (EMC): Shielded enclosure and optimised grounding certified to industrial-grade anti-interference requirements.
- SVPWM Algorithm: Reduces switching noise and suppresses harmonic distortion for pristine output waveforms.
- Multi-Layer Protection: Includes input over/under-voltage, output overload, short-circuit, overtemperature, and lightning protection.
- High Reliability: Utilises Mitsubishi 6th generation IPM smart modules; operational from -25°C to 50°C.
- Durability: Power frequency topology supporting a service life extending to 15 years.
Technical Specifications
| Parameter |
Specification |
| Model |
BZP-20KW |
| Isolation mode |
Low Frequency Transformer |
| DC Input |
Rated voltage |
48V (Range 42V-100V) |
| Rated current |
416A |
| AC Output |
Rated output power |
20KW |
| Output waveform |
Pure Sine Wave (THD < 3%) |
| Rated Voltage |
380VAC ± 3% (3 phase 4 wire) |
| Frequency |
50Hz / 60Hz |
| Power Factor (PF) |
0.9 |
| Overload Ability |
120% for 35 seconds |
| Efficiency |
> 88% |
| Display |
LCD |
| Communication |
RS485 (Optional) |
| Environment |
Temperature |
-25~+55℃ |
| Protection Class |
IP20 (Indoor) |
| Mechanical |
Dimension |
550x550x860mm |
| Weight |
186Kg - 210Kg |
FAQ
Q1: What is the benefit of the line-frequency isolation transformer?
It provides complete AC/DC isolation, which suppresses harmonic interference and significantly enhances the system's resistance to surges from inductive loads like motors.
Q2: Can this inverter work with low battery voltages?
Yes, it features ultra-low voltage input capability, supporting a range down to 42V, ensuring stable power even during deep battery discharge.
Q3: What type of load is supported?
The inverter generates a pure sine wave and is designed to handle both linear and inductive loads, including water pumps and industrial machinery.
Q4: What is the expected lifespan of the BZP-20KW?
Due to its robust power frequency topology and the use of high-quality Mitsubishi IPM smart modules, the service life can extend up to 15 years.
Q5: What happens in the event of a short circuit?
The system includes a short-circuit protection mechanism. It does not recover automatically; the machine must be restarted after the fault is cleared for safety.
Q6: Is remote monitoring available?
Yes, the system supports RS485 and CAN communication interfaces, allowing for integration with remote monitoring systems.
Bangzhao Electric
