Injection tester HZ5374

primary currentfor electrical equipmentportable

• Input voltage: AC380V ±10% • Power: 20 kVA • Output current: 0–4000A stepless • Output voltage: 15V • Sine waveform, ripple <0.3% • Accuracy: ~0.3 (0.2S grade material) • Current stability: 0.2% • Protection: Over-current, over-voltage • Structure: Split type • Environmental group: III (outdoor) Performance Characteristics • PVC front panel • Direct display of primary and secondary current • Shows CT ratio and polarity simultaneously • Accuracy: 0.5 class • High power, strong load capacity • Compact and lightweight design A Primary Current Injection Tester is used to verify protective relays, circuit breakers, and other electrical equipment by injecting high current into the primary circuit. The HZ5374 Primary Current Injection Tester from Huazheng uses numerical control technology with strong anti-interference ability. It features low power consumption, high output power, small size, and light weight. It is suitable for primary busbar protection and CT ratio testing in power, railway, petrochemical, metallurgy, and mining industries.