{"id":177,"date":"2026-08-06T01:26:36","date_gmt":"2026-08-05T17:26:36","guid":{"rendered":"http:\/\/www.ochodoses.com\/blog\/?p=177"},"modified":"2026-08-06T01:26:36","modified_gmt":"2026-08-05T17:26:36","slug":"how-to-choose-the-right-partial-discharge-sensor-for-my-application-4287-c8aa20","status":"publish","type":"post","link":"http:\/\/www.ochodoses.com\/blog\/2026\/08\/06\/how-to-choose-the-right-partial-discharge-sensor-for-my-application-4287-c8aa20\/","title":{"rendered":"How to choose the right partial discharge sensor for my application?"},"content":{"rendered":"

When it comes to managing the reliability and safety of electrical systems, partial discharge (PD) detection plays a crucial role. As a supplier of partial discharge sensors, I understand the importance of choosing the right sensor for your specific application. In this blog post, I’ll share some insights on how to make that decision, ensuring you get the most accurate and effective PD monitoring solution for your needs. Partial Discharge Sensor<\/a><\/p>\n

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Understanding Partial Discharge<\/h3>\n

Before delving into sensor selection, it’s essential to have a basic understanding of partial discharge. Partial discharge refers to localized electrical discharges that occur within an insulating material or along its surface. These discharges are often caused by defects in the insulation, such as voids, cracks, or contamination. Over time, PD can lead to the degradation of the insulation, potentially resulting in electrical breakdown and equipment failure.<\/p>\n

Detecting and monitoring partial discharge is a key preventive maintenance strategy for electrical systems, including transformers, switchgear, cables, and rotating machines. By identifying PD early, you can take proactive measures to address insulation issues before they cause significant damage, minimizing downtime and reducing repair costs.<\/p>\n

Factors to Consider When Choosing a Partial Discharge Sensor<\/h3>\n

Selecting the right PD sensor depends on several factors, including the type of electrical equipment, the environment in which it operates, and the specific requirements of your monitoring application. Here are some key considerations to keep in mind:<\/p>\n

Type of Electrical Equipment<\/h4>\n

Different types of electrical equipment generate PD in unique ways, which means that the sensor requirements can vary significantly. For example, in transformers, PD often occurs within the insulating oil or in the solid insulation around the windings. Sensors designed for transformer PD detection are typically installed inside the tank or on the bushing to capture signals from these sources.<\/p>\n

Switchgear, on the other hand, may experience PD along the surface of insulators or in the gas-filled compartments. Surface-mounted sensors or sensors integrated into the switchgear structure are commonly used to detect PD in these applications.<\/p>\n

Cables, especially high-voltage cables, are prone to PD in the insulation layer. Sensors for cable PD monitoring can be installed directly on the cable sheath or in the cable joints to detect the electromagnetic or acoustic signals generated by the discharges.<\/p>\n

Detection Method<\/h4>\n

There are several methods for detecting partial discharge, each with its own advantages and limitations. The most common detection methods include:<\/p>\n