Product Overview
The HZFA-IV is an advanced CT/PT testing solution featuring variable frequency technology capable of handling knee points up to 30kV. Designed for efficiency, this device allows for comprehensive testing of direct resistance, excitation, ratio, and polarity with a single-button operation.
- Variable Frequency Testing: Supports CT tests with knee points up to 30kV.
- One-Button Operation: Streamlined testing for direct resistance, excitation, ratio, and polarity.
- High Performance: 0~180Vrms, 12Arms, 36A (peak) output capacity.
- Automated Analysis: Instantly calculates knee point voltage/current, error curves (10%/5%), ALF, FS, Ts, Kr, and more.
Environmental & Operational Advantages
- Resists high heat, humidity, and salt spray for tropical island use.
- Runs stably at -40°C, cold-proof and anti-condensation.
- IEC compliant, with complete calibration certificates provided.
- Local support available: spares, on-site training, and instrument calibration.

Key Technical Parameters
| Parameter |
Specification |
| Test Method |
Variable Frequency |
| Max Knee Point |
30kV |
| Voltage Range |
0~180Vrms |
| Current Range |
12Arms (36A Peak) |