A 110kV urban substation of a Hunan power utility runs main transformer and switchgear PD monitoring by Huawang; 2025 running reports confirm stable operation.
PD Monitoring for Main Transformer and Switchgear at a 110kV Urban Substation in Hunan Read More »
State Grid Shandong UHV company applies Huawang arrester leakage current remote-transmission meters at a 500kV substation; customer-stamped application certificate on file.
Three 500kV substations of State Grid Hebei UHV company run GIS PD online monitoring systems by Zhuhai Huawang; accepted 2022 with customer-stamped acceptance reports.
500kV GIS Partial Discharge Online Monitoring at Three Substations in Hebei Province Read More »
A large power generation facility in China needed a practical way to monitor the insulation condition of its 110 kV power cables while they remained in service. The project deployed high-frequency current sensors and an IoT data concentrator supplied by Zhuhai Huanwang Technology to support continuous, online partial discharge (PD) monitoring. The installation provides a
Project Overview A 220kV substation in Shangrao, Jiangxi, China, has implemented a GIS partial discharge online monitoring system supplied by Zhuhai Huawang Technology. The project uses smart UHF sensors and contact ultrasonic sensors to collect different types of partial discharge signals from the GIS equipment during operation. By combining electromagnetic and acoustic detection methods, the
220kV GIS Partial Discharge Monitoring Project in Shangrao, Jiangxi Read More »
Project Overview A 220kV substation in Jiangxi, China, has completed the installation of a GIS partial discharge online monitoring system. For this project, Zhuhai Huawang Technology deployed contact ultrasonic sensors and intelligent UHF sensors to continuously monitor partial discharge signals from GIS equipment during operation. Monitoring Solution The contact ultrasonic sensors are installed directly on the GIS
220kV GIS Partial Discharge Online Monitoring Project in Jiangxi, China Read More »
A 110kV substation in Jiangxi, China, has deployed an online monitoring system for its GIS equipment to support long-term insulation condition monitoring. For this project, Zhuhai Huawang Technology installed smart UHF sensors and contact ultrasonic sensors at selected monitoring points on the GIS equipment. The two sensing technologies collect different types of signals generated by
110kV GIS Online Monitoring System Project in Jiangxi, China Read More »
A 220kV substation in Jiangxi, China, deployed an online partial discharge monitoring solution for its GIS equipment to improve insulation condition monitoring and support more reliable operation. The project uses Huawang Technology’s HMJ1010-WAEA Smart Contact Ultrasonic Sensor to detect acoustic emission (AE) signals generated by partial discharge inside GIS equipment. Solution The ultrasonic sensors are
Smart Contact Ultrasonic Sensor Applied to 220kV GIS PD Monitoring Read More »
At the invitation of a client, Huawang Technology’s engineering team recently traveled to an overhead power line site in Jiangxi, China, to conduct live-line inspection services. The project site is located in an open agricultural area, where the overhead transmission lines are continuously exposed to wind, rain, contamination, and aging — conditions that can lead to
In May 2026, Huawang Technology received an urgent service request from a new energy industrial park in Guangdong Province. The customer reported abnormal buzzing noises coming from critical equipment inside a 35kV high-voltage switchgear room. Suspecting insulation deterioration and concerned about the impact on production safety, they requested an immediate on-site inspection. Our engineers promptly