Import 100amicro Ohmmeter — Buy in wholesale FOB from Supplier in China

Wuhan GDMK Electric Co., Ltd. supplies a 100A Micro Ohmmeter designed for precise contact resistance measurement in high-voltage switchgear and circuit breakers. The instrument adheres to the Chinese electric power standard DL/T 845.4-2004 and addresses the limitations of older DC bridges like the QJ44, which used milliamp-level test currents. Its core function is to apply a stable DC test current of 100A, as mandated by standards such as SD301-88, to accurately measure contact resistance where oxide layers or oil films can distort readings.

This Micro Ohmmeter integrates high-frequency switch power supply technology with digital circuitry to deliver a stable 100A output and direct digital display of resistance values. The device is engineered for the maintenance and factory testing of high-voltage switches, providing results that reflect true contact resistance under operational current conditions. Its design meets the requirements of power equipment preventive test regulations, making it a standard tool for electric power system diagnostics.

The primary buyers for this equipment are electric power utilities, switchgear manufacturers, and industrial maintenance teams responsible for high-voltage infrastructure. It is used in settings ranging from power substation commissioning to routine preventive maintenance. Sourcing from Wuhan GDMK Electric involves confirming the instrument's calibration status, included accessories, and warranty terms. The supplier's location in Wuhan, a major industrial hub in China, facilitates logistics for international buyers.

Wuhan GDMK Electric Co., Ltd. is a supplier of electrical test equipment based in Wuhan, Hubei Province, China. The company's registered address is in the Jiangxia District Economic Development Zone. The supplier profile shows a 'harbor' trust tier, indicating a basic level of verification on the platform, and a 0% response rate to inquiries tracked through the marketplace.

The product listing demonstrates a technical focus on instruments for power system testing, specifically contact resistance meters. The detailed description cites relevant Chinese national standards (DL/T 845.4-2004, SD301-88), suggesting familiarity with the regulatory requirements for such equipment. However, the listing provides no information about the company's operational history, export experience, production capabilities, or quality management certifications. Buyers should request this information directly to assess the supplier's reliability for international procurement.