What Is Medium Voltage Switchgear Monitoring System?
A Medium Voltage (MV) switchgear monitoring system is designed
Partial Discharge Sensor Installation Guide
This article introduces a three-in-one partial discharge (PD) sensor that integrates Acoustic Emission (AA), Transient Earth Voltage (TEV), and Ultra High Frequency (UHF) detection functions. The device is equipped with a highly sensitive microphone on the top for capturing ultrasonic signals inside the switchgear. Depending on the application scenario, users can adjust the microphone orientation to achieve optimal detection results.
Installation methods
Method-1: Surface Mounting (Outside the Switchgear)
When the sensor is mounted on the switchgear surface, the microphone should be rotated towards and placed close to the cabinet wall, ensuring tight contact. In this position, the microphone can effectively capture ultrasonic signals generated by internal equipment through cabinet vibrations.
Advantages
- No need to open the switchgear, enabling fast deployment and maintenance.
- Avoids direct contact with high-voltage components, enhancing operator safety.
- Although the signal may attenuate when transmitted through the cabinet wall, this method remains sufficiently reliable for continuous monitoring and remote alarming.
Method-2: Internal Mounting (Inside the Switchgear)
When the sensor is mounted inside the switchgear, the microphone should face the internal space to directly capture the original ultrasonic signals generated by partial discharge activity.
Advantages
- Provides stronger signal amplitude and more complete frequency characteristics.
- Enables more accurate analysis of PD behavior and fault source localization.
- Suitable for high-precision monitoring and diagnostic applications, though it requires operators to adopt strict safety measures.
Users are strongly advised to follow the installation guidelines carefully and regularly verify the orientation of the sensor to ensure consistent and reliable operation of the monitoring system.
Related Articles
How Does Switchgear Partial Discharge Detection Work?
To know how switchgear partial discharge works, you need
This article introduces a three-in-one partial discharge (PD) sensor that integrates Acoustic Emission (AA), Transient Earth Voltage (TEV), and Ultra High Frequency (UHF) detection functions. The device is equipped with a highly sensitive microphone on the top for capturing ultrasonic signals inside the switchgear. Depending on the application scenario, users can adjust the microphone orientation to achieve optimal detection results.
Installation methods
Method-1: Surface Mounting (Outside the Switchgear)
When the sensor is mounted on the switchgear surface, the microphone should be rotated towards and placed close to the cabinet wall, ensuring tight contact. In this position, the microphone can effectively capture ultrasonic signals generated by internal equipment through cabinet vibrations.
Advantages
- No need to open the switchgear, enabling fast deployment and maintenance.
- Avoids direct contact with high-voltage components, enhancing operator safety.
- Although the signal may attenuate when transmitted through the cabinet wall, this method remains sufficiently reliable for continuous monitoring and remote alarming.
Method-2: Internal Mounting (Inside the Switchgear)
When the sensor is mounted inside the switchgear, the microphone should face the internal space to directly capture the original ultrasonic signals generated by partial discharge activity.
Advantages
- Provides stronger signal amplitude and more complete frequency characteristics.
- Enables more accurate analysis of PD behavior and fault source localization.
- Suitable for high-precision monitoring and diagnostic applications, though it requires operators to adopt strict safety measures.
Users are strongly advised to follow the installation guidelines carefully and regularly verify the orientation of the sensor to ensure consistent and reliable operation of the monitoring system.
Related Articles
How Does Switchgear Partial Discharge Detection Work?
To know how switchgear partial discharge works, you need
