Import 20kv Megohmmeter 15kv Digital Insulation — Buy in wholesale FOB from Supplier in China

The 20KV Megohmmeter 15KV Digital Insulation tester is a precision instrument engineered for evaluating insulation resistance in high-voltage electrical equipment including large transformers, rotating machines, and power distribution cables. This digital megohmmeter provides selectable test voltages spanning from 0.25kV to 15kV DC, enabling operators to perform appropriate voltage stress testing based on equipment voltage class and insulation type. The instrument features robust anti-electric field interference capability reaching 2mA at 50Hz, allowing accurate measurements in operational 500kV substations without requiring equipment isolation.

The measurement system covers an extensive resistance range from 0.5MΩ to 200,000MΩ with high resolution display for detecting subtle insulation degradation patterns that may indicate developing faults. The test power short-circuit current exceeds 5mA with peaks reaching 15mA, providing sufficient energy to charge the capacitive elements of large power apparatus and obtain stable reading quickly. An integrated timer function supports absorption ratio and polarization index calculations, which are fundamental diagnostic parameters for assessing insulation aging, moisture contamination, and overall condition of electrical rotating equipment and transformers.

This insulation tester serves electrical utilities, power generation companies, industrial facilities with high-voltage distribution systems, and independent testing laboratories performing preventive maintenance programs. The instrument is specifically designed for remote power cable testing, buried cable fault location assessment, and evaluation of insulation in strong electromagnetic interference environments. Wuhan GDMK Electric offers various trading arrangements; buyers should confirm specific MOQ, payment terms, and delivery schedules directly with the supplier. Importers must ensure the instrument meets applicable measurement accuracy requirements for their regulatory and quality assurance frameworks.

Wuhan GDMK Electric Co., Ltd. operates from Jiangxia District Economic Development Zone, Daqiao New District, Huangjiahu Avenue, Wuhan, Hubei Province, China (postal code 430200). The supplier holds harbor trust tier status, indicating verified business registration on the platform. The listing displays a response rate of 0.00% and average response hours of 0, suggesting limited recent platform engagement.

The company focuses on electrical testing and measurement instrumentation, specifically high-voltage megohmmeters for insulation resistance testing in utility and industrial applications. The product listing describes technical capabilities but does not specify particular certifications, calibration services, or named client references. Trading terms allow flexibility as indicated by various payment options, though detailed MOQ and production lead times require direct discussion with the supplier.