I. Introduction
The HZ-900 cable fault detector is designed to identify and resolve a wide range of faults in power cables up to 35KV. This system is composed of three key components: 1. **Fault Location Unit** – HZ-900 three-pulse ranging host and central control unit The host uses advanced three-pulse arc reflection pre-positioning technology, ensuring that all test waveforms are displayed as low-pressure pulse waveforms. This enables automatic fault distance positioning, making the process simple and efficient. 2. **Fault Point Unit** – HZ-4000 Intelligent Locator Specifically developed for precise fault pinpointing, this device offers high noise immunity and sensitivity, making it ideal for accurate cable fault detection. 3. **High-Voltage Signal Unit** – HZ-32 Cable Test Integrated High Voltage Generator This component supplies high-pressure, high-energy electrical impulses to the cable under test. It features automatic voltage settings, single or continuous discharge options, and is compact, lightweight, and easy to use.
II. Technical Specifications
1. Fault Location Unit – HZ-900 Three-Pulse Ranging Host and Central Control Unit
- **Test Method**: Three-pulse method, impact high-voltage current sampling, low-pressure pulse method, echo measurement - **Data Sampling Rate**: 200MHz, 100MHz, 50MHz, 25MHz, 12.5MHz - **Test Distance**: >50 km - **Reading Resolution**: 1m - **System Pointing Accuracy**: 0.1m - **Test Cable Pulse Width**: 20ns–40μs - **Working Conditions**: Temperature -30°C ~ +45°C, Relative Humidity: 90%, Altitude: less than 3000 meters - **Central Control Unit**: - Control: A control key with sequential three-level trigger signal output - Store Energy: 300J - Working Voltage: 220V, 50Hz - Power Consumption: 100VA - Ambient Temperature: -30°C ~ +50°C 2. Fault Point Unit – HZ-4000 Intelligent Locator
- **Maximum Volume Limit**: 84dB - **Fault Distance**: Up to 25m - **Audio Test Accuracy**: 0.1m - **Audio Waveform Display**: 15m - **Electromagnetic Strength Display**: Rectangular bar display, digital display, maximum recording function - **Display**: 4.3-inch OLED screen with 480 × 272 resolution - **Frequency Range**: 100Hz – 1500Hz - **Low-pass Filter**: 100–400Hz bandpass, 150–600Hz high-pass - **Step Voltage Sensitivity**: 0.1mV – 75V - **Isolation Interference**: 50Hz, DC - **Dimensions**: 240mm × 130mm × 120mm - **Weight**: ≤1.4kg 3. High-Voltage Signal Unit – HZ-32 Cable Test Integrated High Voltage Generator
- **High-Voltage Pulse Output**: 32kV, negative, continuously adjustable - **Maximum Output Current**: 100mA - **Built-in Capacitors**: 2μF (customizable 4μF–8μF) - **Work Modes**: DC, one-shot pulse, cycle pulse - **Discharge Cycle**: 5s (adjustable 5–30s) - **Discharge Energy**: ≥1800J (up to 3600J) - **Power Supply**: 220V ±10%, 50Hz - **Working Conditions**: Temperature -30°C ~ +45°C, Relative Humidity: 90%, Altitude: less than 3000 meters
IV. Product Details
V. Company Information
We are an ISO and CE-certified manufacturer, and a sister company to Huazheng Electric. In addition to electrical testing equipment, we also provide ADSS/OPGW hardware fittings, indoor/outdoor vacuum circuit breakers, insulators, and bird repellers. We welcome customers from around the world to collaborate with us and offer high-quality products, competitive pricing, timely delivery, and exceptional service.
VI. Our Services
1. Excellent after-sales service: Any issues will be resolved promptly. 2. Years of experience in fastener manufacturing. 3. Specifications list available upon request. 4. Welcome to send inquiries—we will respond quickly. 5. Prompt shipment with professional documentation. 6. Custom packaging with photos before shipment. 7. High quality and competitive prices. 8. All products are strictly controlled and come with great support. 9. Our products are well-known among domestic and overseas clients.
VII. Exhibition
VIII. Customer Visit
IX. Similar Recommendations
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| Cable Fault Pin Pointer |
| Cable Route Tracer |
| Cable Identificator |
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