Partial Discharge Monitoring Systems Market Size, Share, and Industry Analysis, By Type (Permanent Monitoring System and Temporary Monitoring System), By Application (GIS, Transformers, Power Cables and Others), and Regional Forecast, 2025-2032

Partial discharge (PD) monitoring systems are necessary tools used in different industries to identify and monitor small electrical discharges within the insulation of electrical equipment. These discharges, known as partial discharges, can lead to insulation degradation and eventual equipment failure if not detected early. These monitoring systems utilize sensors to capture electromagnetic signals produced by partial discharges, and advanced signal processing techniques distinguish these signals from normal electrical noise. Partial discharge monitoring is used during the offline quality control test during machine downtime or, more typically, as online monitoring under normal operating conditions. They are mainly used for limited tolerance for power cuts. Partial discharge monitoring has various benefits, such as cost-effectiveness, ease of installation, reduced equipment failure rates, and facilitated maintenance to increase equipment efficiency.

• Prysmian Electronics is now focusing on new applications of its technology. In terms of product development, the company mainly focuses on partial discharge measurements applied to direct current (DC), as in the market situation, the Prysmian Group is the most active and undisputed segment.

The hampering factor for the partial discharge monitoring systems market as partial discharge monitoring systems is that partial discharges usually start at low intensity and do not have a significant impact on the transformer. However, if the PD remains undetected, its size may begin to increase, resulting in continuous degradation of the transformer insulation. This can cause arcing in the transformer, which can cause catastrophic failure, including fire, tank rupture, and, eventually, explosion. PD is undeniably a massive problem, as much as a majority of disruptive failures in HV and MV equipment are linked to PD damage. These factors are expected to hinder the growth of the particulate emissions market.

There was a negative impact on the partial discharge monitoring systems market due to the COVID-19 outbreak. The partial discharge monitoring systems market was significantly affected by the lockdown. The virus had various negative impacts on diverse markets. Lockdowns were imposed in several regions and countries. This unpredictable pandemic caused disruptions in all sorts of businesses. Restrictions tightened during the pandemic due to the increasing number of cases, and numerous industries were affected.

KEY INSIGHTS

The report includes the following key findings:

• Recent Advancements in the Partial Discharge Monitoring Systems Market


• Key industry trends


• The Regulatory Landscape in the Partial Discharge Monitoring Systems Market


• Impact of COVID-19 on the market

SEGMENTATION

ANALYSIS BY TYPE

The global partial discharge monitoring system market is segmented by type, which includes permanent monitoring system and temporary monitoring system. The permanent monitoring system evaluates the partial discharge of one or more machines during the entire period. Based on the collected information, it is possible to identify when it is necessary to plan downtimes and perform maintenance. The permanent partial discharge monitoring system makes sensitive partial discharge measurements to detect potential malfunctions before they occur. Noise suppression and partial discharge source isolation algorithms are used to detect harmful partial discharge activity reliably. Warnings and alarms are triggered when user-defined partial discharge threshold levels are exceeded. Temporary monitoring helps identify internal limitations of the isolated system that may cause system failures and malfunctions in the future.

ANALYSIS BY APPLICATION

By application, the global partial discharge monitoring system market is segmented into GIS, transformers, power cables and others. Partial discharge measurement is one of the most significant tools to assess the condition of GIS insulation. Partial Discharge (PD) in a gas-insulated circuit breaker is an indicator that a fault has occurred and requires immediate action. Partial discharge monitoring and analysis of fixed applications in all GIS models in transmission equipment and critical systems such as power plants and large industrial consumers. Partial discharge is a public sign of insulation failure in power cables and cable accessories such as joints and terminations, which can ultimately lead to costly repairs and extended downtime. With appropriate sensors, partial discharge performance can be monitored and trended, either temporarily or permanently, continuously throughout the lifetime of the device. 

REGIONAL ANALYSIS

The global partial discharge monitoring system market has been categorized into regions: North America, Asia Pacific, Europe, Latin America, and Middle East & Africa.

Asia Pacific is the dominating region globally as prominent countries, such as China, Japan, and India drive the primary demand for partial discharge monitoring as these countries have a high potential to boost the market.

North America is expected to grow during the forecast period as North America is a developed region with an energy sector and transmission and distribution along with power generation. Based on development, the need for consistent electrical infrastructure is mandatory to avoid power outages and follow safety standards. This is positively impacting the partial discharge monitoring system market for monitoring the transmission of current and detection of issues during transformers.

Europe is one of the fastest-growing regions driven by European network customers connected to the distribution grids. Europe has generated the majority of its revenue from electricity transmission and distribution. Latin America and Middle East & Africa are actively looking to invest more in projects related to the transmission and distribution of electricity. This initiative from emerging countries will help to boost the stationary fuel cell market.

KEY PLAYERS COVERED

Key players in the partial discharge monitoring system market are Qualitrol, Eaton, OMICRON, Siemens, Megger, Prysmian Group, Doble Engineering Company, Meggitt Sensing Systems, LS Cable & System, Doble Engineering Company, and Meggitt Sensing Systems.

KEY INDUSTRY DEVELOPMENTS

• In March 2024, Omnicron Energy launched a new smart edge computing device that provides the continuous monitoring and trending of partial discharge (PD) activity in Gas-Insulated Switchgear (GIS) and Gas-Insulated Lines (GIL). It contains all the needed requirements, including automatically detecting and classifying the type of insulation defect in GIS and GIL and generates alerts for reliable risk assessment.

• In January  2024, Monitra was dedicated to maximizing the uptime of HV assets globally, and partial discharge testing and monitoring are fundamental to the approach. Considering PD and its implications for electrical assets is vital to ensure the efficacy of condition-based maintenance schemes.