News
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2020 New Year Annual Activity
Over the past 40 years, Wah Hing's reputation was reinforces by customer's admiration of the staff's talent, modernize operation, quality management team and flexible marketing strategy, a...
01-012020 -
50MW Solar Energy Inverter solutions
Wah Hing has successfully customized magnetic devices and components such as dry-type transformer, iron core reactor, shell type air core reactor, air core reactor, high-power high-frequency transformer, high-frequency inductor, etc. for the rail transit industry, and has been successfully applied in the auxiliary converter system and charger system of electric locomotive traction, subway, LRV (low floor light rail car), etc. The converter set in the main traction circuit on electric locomotive and other locomotives installed with electric drive device. The function of traction converter is to convert the electric energy between DC system and AC system, and to control and adjust various traction motors, so as to control the operation of locomotive. The main functional units include AC DC rectifier, DC DC converter, DC AC converter, charger, etc., which are mainly applied to DC electric locomotive, EMU, Metro, LRV (light rail) vehicles....
11-152019 -
20MW Wind Energy Converter System Solution
The air-cooled and water-cooled reactors and distribution transformers designed and produced by Huaxing Electric are widely used in doubly fed and direct drive wind power converter systems, widely used in the industry, and recognized by many well-known customers at home and abroad. As a kind of clean and renewable energy, wind energy is paid more and more attention by all countries in the world. China is rich in wind energy resources. In recent years, national policies have also vigorously supported the wind power industry. The wind power converter adopts three-phase voltage type AC-DC-AC bidirectional converter technology, the core control adopts "double DSP full digital controller" with fast floating-point operation ability; the stator field oriented vector control strategy is realized in the rotor side converter of the generator, and the grid voltage oriented vector control strategy is realized in the grid side converter; the system has adjustable input and output power factors Automatic soft grid connection and maximum power point tracking control function. The power module adopts IGBT power device with high switching frequency to ensure good output waveform....
08-062019 -
2019 Railway Auxiliary Power Systems
Wah Hing has successfully customized magnetic devices and components such as dry-type transformer, iron core reactor, shell type air core reactor, air core reactor, high-power high-frequency transformer, high-frequency inductor, etc. for the rail transit industry, and has been successfully applied in the auxiliary converter system and charger system of electric locomotive traction, subway, LRV (low floor light rail car), etc. The converter set in the main traction circuit on electric locomotive and other locomotives installed with electric drive device. The function of traction converter is to convert the electric energy between DC system and AC system, and to control and adjust various traction motors, so as to control the operation of locomotive. The main functional units include AC DC rectifier, DC DC converter, DC AC converter, charger, etc., which are mainly applied to DC electric locomotive, EMU, Metro, LRV (light rail) vehicles....
06-162019 -
350MVA Three-Phase Transformer Project
SZ11 10kV load volatge regulating 3 phase oil type transfomerThe SZ11 three-phase oil-immersed power transformers series are adapted to 10KV, 50HZ transmission and distribution systems, can be used in...
07-182018 -
2018 HV Power Distribution Transformer Project
WAH HING is a major transformer manufacturer in Guangdong China. Our annual production capacity is more than 2.5 million kVA. We have joined part in many important national projects such as 2008...
01-062018 -
Newest Car Charging Solution
In 2020, Wah Hing provides high frequency inductors / reactors for the drive and power system of new energy / electric vehicles. The motor drive control system of the new energy / electric vehicle is the main executive structure of the new energy vehicle. Its driving characteristics determine the main performance indicators of the vehicle, and it is an important part of the electric vehicle. The motor drive system is mainly composed of motor, power converter, controller, various detection sensors and power supply. The driving system of a typical electric vehicle, which is powered by battery to the inverter, usually has a gearbox to drive the whole vehicle. The control system with sensors and controllers are now developing into digital motors, but there are not many changes. The main function of the driving system is to change the electrical energy into mechanical energy and transfer the energy to the wheels to drive the vehicle....
08-182016 -
Electronica 2014 (Messe München, Germany)
In a few days, the electronica trade fair will again be offering an unique opportunity to find out about new components, systems and technologies. Wah Hing is presenting its products and ser...
11-102014