APM5000 On-line PD Monitoring System for GIS/GIB


APM5000 detects and alerts various defects inside GIS by analyzing UHF signals generated by partial discharge that can cause progressive
deterioration of insulating materials, ultimately leading to electrical breakdown.

  • Suitable for on-line partial discharge monitoring of extra-high voltage GIS and GIB
  • Able to detect less than 5 pC according to CIGRE TF 15/33.03.05
  • Compliant with EMC and electricity safety international standards such as IEC61000-4-X, IEC60255-5,
    IEC60068-2-X, IEC60529/2001, IEC60270, and CISPR22


  • Superior Reliability and Accuracy , Capturing and analyzing PD data continuously, Super-reliable real-time OS (Linux 2.6.29) ,
    Self-diagnosis function (Watch-dog function), Precise data analyzing and recording , Measuring PD signal in Real-Time / Event /
    Trend mode
  • Enterprise Solution , Supporting Client & Server
  • Intelligent Remote Access Management , Upgrading firmware and Neural Network, Optimal Power and data management , Fully
    integrated access control system
  • User-friendly Operation , Analyzing and displaying PRPD / PRPS simultaneously, Generating reports automatically ,
    Auto-regenerating event data, Convenient alert system by email and SMS , Supporting SCADA and IEC 61850
  • Enhanced Noise Control , Unmatched noise elimination with 36 combinable filter matrix, Noise Gating with broadband noise sensor
    (Patent pending), Differentiating PD signal from noise with advanced Neural Network

Diagnosis Unit

Item Specification
Power 90 to 240 VAC, 50/60Hz
Input More than 250 channels
Diagnosis Built in neural network engine classifies PD into 5 types: Protrusion Electrode, Floating Electrode, Defective Insulator, Free Moving Particle and Noise
Alarming HMI, Email, IEC61850
Graphic Tools PRPD, PRPS, Trend, and others
Channel Configuration Three threshold levels for alarming can be configured for each channel individually
IEC61850 Enabled
Remote Monitoring Enabled
Communication 10/100Base-T/TX Ethernet
Storage Database
Self Test Enabled

Local Unit

Item Specification
Power 90 to 240 VAC, 50/60Hz 120 to 370 VDC
Input 8 UHF Channels, N-Type Connector
Sensitivity Can detect discharge less than 5 pC within monitoring area of GIS/GIB
Wide Bandwidth 100 ~ 2000MHz
Dynamic Input Range - 65 to 0 dBm
Band Pass Filter Combination of 4 LPF and 4 HPF
Noise Gating Enabled (External Noise Sensor)
Communication Fiber Optic (100Base-FX)
Notification 4 x LED Status Indicators
Operating Temperature -25°C to 55°C
Dimensions 355 x 625 x 270 (W x H x D) mm

System Configuration