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

APM3000 On-line PD Monitoring System for Power Transformer

APM3000 is an On-line Partial Discharge Monitoring System (OPDM) for power transformers base on UHF partial discharge technologies. APM 3000 monitors and diagnoses various defects timely and accurately to support improved Condition Based Management (CBM) and to prevent serious breakdown of power transformers.

• Suitable for on-line partial discharge monitoring of extra-high voltage Power Transformer
• Distinguishes PD signals from similar noise signals by analyzing the characteristic of individual PD pulse signal UHF bandwidth at time domain and frequency domain
• Able to locate defects causing PD inside transformer by comparing UHF signals from numbers of sensors installed in the transformer

APM2000 Portable PD Monitoring System

APM2000 detects and alerts various defects inside EHV/MV equipment by analyzing UHF signals generated by partial discharge. It monitors, records and analyzes PD signal continuously and alerts the condition of EHV/MV equipment with light-weight and small-sized equipment.

• Suitable for the PD measurement of the extra-high voltage and medium voltage equipment
• Portable light-weight and small-sized equipment maintain PD analysis features
• Provides project management features for multiple PD sensors at multiple sites.
• 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

APM1200 On-line PD Monitoring System for MVSG

It is an advanced on-line diagnosis system for medium voltage switchgear that predicts any problems for advanced maintenance by detecting partial discharge such as Corona, Arc that is generated from degradation of internal system of medium voltage switchgear, thereby contributing to prevent damages from system breakdown, electrical fire, etc and to assure system quality and longevity

The PD sensor is used to detect partial discharge signals in UHF (Ultra High Frequency) band.There are three types of sensors: External PD Sensor, Internal PD Sensor, and Noise Sensor.

• The External PD Sensor is installed on open-type insulating GIS spacer.
• The Internal PD Sensor is installed in mounted window of GIS enclosure.
• The Noise Sensor is a device installed externally at the substation GIS to detect various external electromagnetic signals such as corona, mobile phone, radar, switching surge.