Model:
HMJ1010-WG
Product Overview:
The HMJ1010-WG Smart UHF Partial Discharge Sensor is designed for monitoring ultra-high frequency (UHF) signals generated by partial discharges (PD) in electrical equipment. It provides online monitoring for GIS, transformers, and other power equipment to assess insulation conditions, detect hidden risks early, and ensure the safe and stable operation of power systems.
Features:
1、High Sensitivity:
Capable of detecting extremely weak partial discharge signals in power equipment. It can identify even minor insulation defects or early-stage discharges, enabling early fault detection.
2、Wide Frequency Response:
Effectively monitors electromagnetic waves in the UHF band (300MHz – 1.5GHz), providing richer PD information that aids in accurately analyzing the type, location, and severity of discharges.
3、Strong Anti-Interference:
Incorporates advanced filtering and shielding technologies to suppress external electromagnetic interference, such as electrical noise from other substation equipment and radio signals, ensuring accurate monitoring data.
4、Intelligent Diagnostics:
Equipped with built-in smart algorithms for real-time signal analysis, automatically identifying PD characteristics such as discharge amplitude, phase, and frequency. The system performs early warnings and diagnostics based on preset thresholds and rules.
Technical Specifications:
| Parameter | Specification |
| Frequency Range | 300 – 1500MHz |
| Measurement Range | -80 to -10dBm |
| Average Equivalent Height | ≥10mm |
| Sensitivity | ≤6.5V/m |
| Dynamic Range | ≥40dB |
| Communication Protocol | Wireless: LoRa / Wired: RS485 |
| Power Supply | Wireless: Built-in lithium battery / Wired: DC24V |
| Operating Temperature | -40 to +85℃ |
| Operating Humidity | 5% – 95% RH |
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