Model:
HMJ1010-WGK
Product Overview:
The Intelligent Spatial UHF Partial Discharge Sensor is designed to monitor ultra-high frequency (UHF) partial discharge signals within specific environments such as high-voltage distribution rooms and ring main units (RMUs). It is typically installed on the inner walls of switch stations or distribution rooms, enabling real-time detection of UHF partial discharge signals in these areas. This provides early warnings of potential insulation defects and helps ensure the safe and stable operation of power equipment.
Key Features:
High Sensitivity:
The sensor can detect weak UHF signals with high sensitivity, including nanosecond-level electromagnetic pulses generated by partial discharges. This enables early detection of insulation deterioration and potential faults.
Strong Anti-Interference Capability:
Equipped with advanced signal processing and filtering algorithms such as analog filtering, pulse grouping, periodic pulse elimination, and dynamic threshold setting. These measures effectively suppress ambient electromagnetic interference and noise, ensuring accurate and reliable measurements.
Non-Contact Full-Angle Detection:
Utilizes non-contact, omnidirectional spatial electromagnetic wave detection technology, enabling 360° monitoring without the need for physical contact with the device under test. This avoids interference with equipment insulation and simplifies installation.
Smart Communication Options:
Supports both LoRa wireless and RS485 wired communication protocols, making it easy to transmit data to smart distribution gateways or central monitoring systems for remote diagnostics and data sharing.
Technical Specifications:
| Item | Specification |
| Frequency Range | 300–1500 MHz |
| Measurement Range | -80 to -10 dBm |
| Average Equivalent Height | ≥10 mm |
| Sensitivity | ≤6.5 V/m |
| Dynamic Range | ≥40 dB |
| Communication Protocol | Wireless: LoRaWired: RS485 |
| Power Supply | Wireless: Built-in lithium batteryWired: DC 24V |
| Operating Temperature | -40°C to +85°C |
| Operating Humidity | 5%–95% RH |
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