DC insulation detection supports uptime, preventive maintenance, and safer operation in PV, storage, and DC grid projects.
Gongyuan develops DC, AC, and high-voltage insulation monitoring solutions for EV charging, energy storage, photovoltaics, industrial distribution, and rail transit.
High-voltage DC monitoring with self-test, relay alarm, and MODBUS RTU.
Compare application range, key specifications, certifications, and inquiry access in one product-led structure.
Insulation Monitor - DC Applications / AC Applications / Supporting LCD Screen
Real-time monitoring of positive and negative pole insulation resistance, unaffected by DC voltage fluctuation.
Designed for DC charging systems, photovoltaic systems, energy storage systems, and DC grid applications.
Monitors DC floating systems, AC floating systems, passive equipment insulation status, and vehicle systems.
Simultaneous monitoring for multi-branch circuits in power distribution systems.
High-performance insulation monitoring designed for heavy industrial systems.
Versatile and compact insulation monitoring with programmable settings.
Monitors DC floating systems, AC floating systems, passive equipment insulation status, and vehicle systems.
Interactive high-resolution smart display terminal designed for real-time monitoring system parameters.
Suzhou Gongyuan Automation Technology Co., Ltd. develops, manufactures, and supports insulation monitoring systems for new energy electrical safety.
With independent R&D, advanced detection technology, and strict quality control, Gongyuan helps customers reduce electrical risk and improve system reliability.
Product quality, application experience, and engineering support help buyers move from selection to deployment faster.
Certified products backed by strict manufacturing and quality management.
Coverage for charging, storage, PV, DC grid, rail transit, and special vehicles.
Independent engineering for accurate monitoring and intelligent fault warning.
Quick documents, model guidance, and project-fit confirmation.
DC insulation monitoring for charging piles and vehicle charging systems.
Fault warning for storage cabinets and battery-side DC systems.
High-voltage DC monitoring for solar generation and conversion.
Continuous monitoring for demanding DC or AC floating systems.
Application photos show real integration in charging equipment and electrical systems.
Integrated insulation monitoring inside charging equipment cabinets.
Supports safety warning in DC charging applications.
Monitoring for high-reliability power and equipment systems.
Application coverage for charging, storage, photovoltaic, and DC grids.
Clear proof for safety review, quality checks, and market-entry evaluation.
TÜV, CE, RoHS, REACH, quality system, and patent materials support engineering and procurement review.
Product safety validation
EU market conformity
Restricted substance control
SVHC report available




Get model recommendations, technical parameters, certification files, and integration support.
Guides for insulation monitoring principles, safety value, product selection, and maintenance.
DC insulation detection supports uptime, preventive maintenance, and safer operation in PV, storage, and DC grid projects.
EV charging equipment depends on stable insulation monitoring to protect users, vehicles, and charging infrastructure.
Industrial DC systems benefit from real-time resistance monitoring, fast alarm output, and communication-ready fault diagnosis.
Insulation monitoring helps teams detect degradation before it becomes a safety risk, especially in floating DC and new energy systems.