ARM Industrial Computers in Remote Monitoring of Distribution Rooms

With the development of smart grids and the advancement of distribution automation, the safety, operational reliability, and maintenance efficiency of distribution room equipment have become key focuses for power utilities. ARM industrial computers, with their low power consumption, high performance, and versatile interfaces, have emerged as an ideal solution for remote monitoring in distribution rooms.

System Overview

In traditional distribution rooms, maintenance personnel must periodically conduct on-site inspections to monitor switchgear, cable temperatures, and partial discharge conditions. Manual inspections are costly, inefficient, and pose safety risks. By leveraging ARM industrial computers to build a remote monitoring system, real-time data collection from various power equipment becomes possible. Edge computing processes alarm information locally, and secure remote maintenance interfaces via VPN significantly reduce operational costs and safety risks.

Core Functions

Data Collection

ARM industrial computers can interface with various sensors and devices to achieve comprehensive data collection:

• Switchgear Status: Collects on/off positions, energy storage status, and door-opening information via digital inputs and protection device interfaces.
• Cable Temperature: Monitors cable or busbar temperatures using wired or wireless sensors.
• Partial Discharge Monitoring: Captures partial discharge pulse counts, amplitudes, and PRPD characteristics through UHF, TEV, or ultrasonic sensors.
• Power Data: Records voltage, current, active/reactive power, and power factor for electrical parameter monitoring.

Edge Computing and Alarm Processing

ARM industrial computers perform local data preprocessing and alarm evaluation:

• Filtering of outliers and data denoising.
• Alarm determination based on temperature rise rates, partial discharge amplitudes, and power quality.
• Local linkage actions, such as triggering indicator lights or buzzers, ensure rapid on-site response

Secure Remote Maintenance

Through secure VPN access, maintenance personnel can remotely monitor distribution room equipment, enabling:

• Real-time viewing of equipment status and trend curves.
• Downloading partial discharge waveforms and temperature data.
• Remote parameter adjustments and fault diagnostics.
• API integration with SCADA systems or cloud platforms.

System Advantages

• Enhanced Maintenance Efficiency: Remote monitoring reduces the frequency of manual inspections and supports centralized management across multiple sites.
• Improved Safety: Real-time alarms for equipment anomalies minimize the risk of electrical accidents.
• Cost Savings: Reduces labor and on-site maintenance costs while mitigating losses from equipment failures.
• Strong Scalability: ARM industrial computers support multiple communication interfaces (RS-485, Ethernet, 4G/Wi-Fi), ensuring compatibility with various sensors and secondary devices.

Application Scenarios

• Urban distribution rooms and industrial park substations.
• Centralized monitoring and temperature control of high-voltage switchgear.
• Partial discharge detection and power quality monitoring.
• Remote fault diagnosis and preventive maintenance.

Conclusion

With high reliability, versatile interfaces, and robust edge computing capabilities, ARM industrial computers provide a comprehensive solution for remote monitoring in distribution rooms. By enabling real-time collection of equipment status, temperature, and partial discharge data, combined with secure VPN-based remote maintenance, these systems significantly enhance operational efficiency and ensure grid safety. In the context of smart grids and distribution automation, ARM industrial computers are poised to be a critical enabler of the digital transformation of distribution rooms.