Partial Discharge (PD) Monitoring Solution

Acrel has launched an advanced partial discharge (PD) monitoring solution for high-voltage switchgear, ensuring the safety of the power grid in hospital campuses.

Acrel,a leading provider of smart energy solutions, has successfully implemented its cutting-edge partial discharge (PD) monitoring systemin a hospital in China, addressing critical electrical safety challenges in high-voltage switchgear. This case highlights the effectiveness of Acrel’s integrated solutions in preventing equipment failures and ensuring uninterrupted power supply for critical healthcare facilities.

Project Overview

The hospital’s 10kV power distribution system underwent a comprehensive upgrade across 11 distribution rooms, including critical areas like the Internal Medicine Building, Surgical Building, and Emergency Departments. The project aimed to:

Enhance Fault Detection: Integrate arc protection devices and wireless temperature sensors for real-time monitoring.

Prevent Insulation Failures: Deploy ultra-high frequency (UHF) partial discharge sensors to detect early insulation degradation.

Optimize Energy Management: Utilize power quality analyzers and multifunction meters for energy efficiency analysis.

Centralized Monitoring: Streamline data to a hospital energy management platform for 24/7 oversight.

Acrel’s Product Features

APD100 UHF Partial Discharge Monitor

Technology: Employs UHF sensors (300 MHz–1.6 GHz) to capture electromagnetic signals from partial discharges, offering ns-level response and GHz-range sensitivity

Installation: Magnetic suction mounting in cable chambers for non-invasive setup.

Capabilities: Monitors discharge frequency, magnitude, and generates PRPD/PRPS graphs for trend analysis.

ARB6 Arc Protection Device

Rapid Response: Detects arc faults in <3.8 ms, isolating faults zones to prevent cascading failures.

Reliability: Tested for immunity against electromagnetic interference (EMI) and harsh environments.

ATE Wireless Temperature Sensors

Real-Time Alerts: Tracks contact temperatures at circuit breakers and busbars, reducing fire risks.

Flexibility: Battery-powered with LoRa wireless transmission for easy deployment.

APView Power Quality Analyzer

Comprehensive Metrics: Measures harmonics, flicker, and voltage fluctuations to ensure compliance with grid standards

Case Outcomes

Enhanced Safety: The APD100 system identified early-stage insulation weaknesses in 3 out of 196 switchgear units, preventing potential outages during peak hospital operations.

Operational Efficiency: Wireless temperature sensors reduced manual inspection time by 60%, while the energy management platform optimized power consumption by 15%.

Proactive Maintenance: Arc protection devices eliminated 90% of false alarms caused by transient faults, improving maintenance workflows.

Why Acrel Stands Out

Integrated Solutions: Seamlessly combines PD monitoring, arc protection, and energy analytics into a unified platform.

Compliance: Meets IEC 60270 and GB/T standards, with certifications from national labs like CNAS

          Scalability: Adaptable to diverse scenarios, from hospitals to industrial plants, with modular            hardware and cloud-based analytics.