The HZFA-2Y is a high-precision field testing instrument engineered to streamline on-site electromagnetic voltage transformer verification. By enabling testing under low-voltage conditions, it significantly reduces operational workload while maintaining laboratory-grade accuracy.

| Parameter | Specification |
|---|---|
| Environmental conditions | Temperature: (5–40)°C, Humidity: <80%, Altitude: <2500 m |
| Comprehensive error | 0.05% |
| Accuracy class range | 0.2, 0.5, 1 |
| Internal standard PT | Accuracy: 0.05%, Voltage: 0–2400 V, Capacity: 50 VA |
| Internal calibrator | In-phase: 0.0001–3.0/200.0; Orthogonal: 0.001–99.9/999.9 |
| Internal load box | Capacity: 0.0–500 VA, PF: 0.1–1.0, Accuracy: 3.0% |
| Power consumption | 100 VA |
| Output power | 500 VA |