| Varieties | CWY Magnetic saturation | Model 614 Electron Tube | AC Purification APA6000 series |
KG Fully Automatic Compensation | CWY Parametric Tieta Brand AVR |
| Input voltage | 154~253V | 195~240V | 186~254V（or 176~242V） | 304~457V | 140~300V |
| Output voltage | 220V±2% | 220V±3% | 220V±1% | 380V±1%~5% | 220V±2%~7% |
| Efficiency | 90% | 86% | >93% | >98% | >77% |
| Waveform distortion | <9% | <5% | <3% | <3.5% | <3% |
| Anti-jamming ability | >50dB <1Megahertz |
The peak suppression of 20dB is: when the input pulse width is 2µS and the amplitude is 3000V, the output peak is less than 3V. | nothing | Common-mode interference suppression (> 120 dB) Normal mode interference 50~100dB has the function of waveform purification | |
| Load adjustment capability | <3% | <4% | ≦1% | ≦±1.2% | |
| Protection function | Overload, short circuit protection, automatic recovery after failure disappears | Overload, short circuit protection | Instantaneous Caller Protection, Output Overvoltage Protection, Short Circuit Protection | Overvoltage, undervoltage, overcurrent, phase-gap protection | Overload, short circuit protection |
| reaction rate | 0.3~0.5S | 0.2~0.5V | Voltage jump<5mS power surges≦20~30mS |
≧25V/S | <10~40mS |
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