The DDG-500A is a precision-engineered current booster featuring advanced numerical control technology. Designed for high anti-interference performance, it serves as an essential tool for primary busbar protection and current transformer testing.

Widely used in power, railway, petrochemical, metallurgy, and mining sectors.
Integrates global product advantages with proprietary numerical control.
Ideal for primary busbar protection and current transformer testing projects.
| Parameter | Value |
|---|---|
| Environmental Category | Group III (Outdoor capable) |
| Input Voltage | AC220V ±10% |
| Output Current | AC0–500A (Stepless) |
| Output Voltage | > 5V |
| Waveform | Standard sine wave, ripple < 0.3% |
| Accuracy | Higher than 0.5 grade |
| Structural Form | Integrated |
| Protection | Overvoltage |