Import Ac/Dc Three Phase Standard Power Source — Buy in wholesale FOB from Supplier in China

The AC/DC Three Phase Standard Power Source from Wuhan GDMK Electric Co., Ltd. is a precision calibration instrument built on ARM+FPGA architecture with high-resolution D/A conversion and direct digital synthesis (DDS) technology. It employs analog closed-loop feedback combined with digital PID control to maintain stable output of voltage, current, frequency and phase parameters over extended operating periods. The unit generates base wave and harmonic waveforms for testing metering instrument accuracy under varying power conditions, with operational amplifier output spanning 40 Hz to 1 kHz. The device features dual output protection, high-fidelity signal generation and enhanced shock resistance, housed in a lightweight aluminium alloy carrying case.

The core architecture pairs an ARM processor for system management with an FPGA handling real-time waveform generation, enabling programmable harmonic distortion up to the 32nd order. Each harmonic's number, amplitude and phase relative to the fundamental can be individually controlled via software, allowing simulation of real-world grid conditions including non-sinusoidal loads. The analog closed-loop feedback network continuously compares output against reference values, with the digital PID controller adjusting parameters to minimise drift and maintain calibration-grade stability. Output linearity is maintained across the full 40 Hz to 1 kHz working range, with protection circuitry guarding against overload and short-circuit conditions on both output channels.

This power source serves manufacturers and calibration laboratories testing energy meters, voltmeters, ammeters, wattmeters, frequency meters, power factor meters and phase meters. It verifies error and variance introduced by changes in voltage, current, waveform shape or power factor, ensuring compliance with national and international metering standards. The RS232 interface enables remote control and automated test sequences, with optional USB connectivity for PC-based measurement systems. Buyers should confirm with Wuhan GDMK Electric Co., Ltd. whether the USB interface is included in their specific configuration, and request calibration certificates traceable to Chinese national standards. The aluminium alloy case supports field deployment as well as laboratory use.

Wuhan GDMK Electric Co., Ltd. is located in the Jiangxia District Economic Development Zone, Daqiao New District, Huangjiahu Avenue, Wuhan, 430200, China. The company holds a Harbor trust tier on the platform, though its response rate is recorded at 0.00 percent with zero average response hours, indicating renting no active engagement data. The supplier address indicates a presence within a designated economic development zone, a common location for technology and manufacturing enterprises in the Wuhan region. No information is provided regarding year of establishment, registered capital, factory size, employee count, annual revenue or specific industry certifications held by the company.

The listing presents Wuhan GDMK Electric Co., Ltd. as a specialist in precision electrical measurement equipment, specifically calibration-grade power sources for metering instrument testing. The source description emphasises technical capabilities including ARM+FPGA architecture and harmonic waveform generation, suggesting engineering-focused product development. Buyers should note that no certification details, quality management system registrations, or client references are stated in the available profile. The company has not verified response performance metrics, so direct contact to confirm product availability, technical support capability and lead times is essential before placing orders. No information about export experience, language support, or after-sales service is provided.