| Parameter | SGAVR-150KVA | SGAVR-200KVA | SGAVR-300KVA |
|---|---|---|---|
| Rated Capacity | 150 KVA | 200 KVA | 300 KVA |
| Phase | 3-Phase (3Φ 4-Wire) | 3-Phase (3Φ 4-Wire) | 3-Phase (3Φ 4-Wire) |
| Input Voltage | AC 380V ±15% | AC 380V ±15% | AC 380V ±15% |
| Output Voltage | AC 220V ±1%–2% | AC 220V ±1%–2% | AC 220V ±1%–2% |
| Frequency | 50/60 Hz | 50/60 Hz | 50/60 Hz |
| Efficiency | ≥ 98% | ≥ 98% | ≥ 98% |
| Input Power Factor | ≥ 0.95 | ≥ 0.95 | ≥ 0.95 |
| Response Time | < 1 second | < 1 second | < 1 second |
| Overload Capacity | 150% for 10s; 3× momentary | 150% for 10s; 3× momentary | 150% for 10s; 3× momentary |
| Waveform | Pure Sine Wave | Pure Sine Wave | Pure Sine Wave |
| Insulation Class | Class F (≤155°C) | Class F (≤155°C) | Class F (≤155°C) |
| Noise | ≤ 60 dB @ 1m | ≤ 60 dB @ 1m | ≤ 60 dB @ 1m |
| Temperature Rise | ≤ 80 K | ≤ 80 K | ≤ 80 K |
| Protection Degree | IP20 (Indoor) | IP20 (Indoor) | IP20 (Indoor) |
| Operating Temperature | -20°C ~ +45°C | -20°C ~ +45°C | -20°C ~ +45°C |
| Humidity | 0–95% (non-condensing) | 0–95% (non-condensing) | 0–95% (non-condensing) |
| Altitude | ≤ 1000m (derating above) | ≤ 1000m (derating above) | ≤ 1000m (derating above) |
| Design Life | 20 Years | 20 Years | 20 Years |
| Standards | JB/T 7620-1994 / EN 61558-2-4 / JEC-204 | JB/T 7620-1994 / EN 61558-2-4 / JEC-204 | JB/T 7620-1994 / EN 61558-2-4 / JEC-204 |
Ferromagnetic Resonance – Voltage Stabilisation: Dual CD-type iron core design with saturated and unsaturated magnetic circuits. When input voltage varies within ±15%, the secondary core adjusts saturation depth through a resonant capacitor network, maintaining constant magnetic flux and stable output voltage. No switching transients – pure sinusoidal output.
Electromagnetic Induction – Voltage Transformation: The integrated transformer steps down voltage through the winding turns ratio. Post-stabilisation AC voltage in the primary winding generates alternating magnetic flux, inducing a secondary voltage that delivers 220V output from 380V input.
Microcomputer Intelligent Control: A microprocessor-based control board continuously monitors input voltage, output voltage, and load conditions. When input voltage deviates, the controller automatically adjusts the compensation circuit to maintain output within the ±1%–2% regulation band. Comprehensive protection includes automatic shutdown on overvoltage, undervoltage, overload, short circuit, or phase loss.
Green Power Design: High input power factor (≥0.95) minimises reactive power loss. Near-unity power factor reduces harmonic injection. Low EMI and ultra-low harmonic output (<1% THD) protect load equipment lifespan and measurement accuracy.
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