Guangdong Chenghui Power Supply Co., Ltd

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China's Best Power Products Manufacturer and Supplier

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Your Best Power Products Manufacturer and Supplier

Guangdong Chenghui Power Technology Co., Ltd., referred to as Chenghui Power, was established in 2006 and is a company with strong R&D and manufacturing capabilities. The company mainly manufactures transformers, voltage regulators, power adapters, switching power supplies and other power products. The company has a very strong team. Our transformers and voltage regulators are used all over the world. Below is our product range.

Desktop dimming glass power supply

Dimm glass power 30W

Dimm glass power 200W

Car dimming glass power supply

Dimm glass power 100W

Dimm glass power 50W

Dimm glass power 30W

Dimm glass power 30W

Three phase voltage regulator 300KVA(380V)

Column type voltage regulator400KVA(380V)

Three-phase voltage regulator30KVA(380V)

Oil-immersed voltage stabilizer1000KVA(380V)

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86+13312980215
High-performance comprehensive testing equipment, a high-caliber R&D team, low energy consumption and cost-effective

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Core advantages of Guangdong Chenghui power transformer

1、 Technology and Materials (Industry Hard Power) .

  • Full copper winding+low loss iron core: 100% oxygen free pure copper coil (rejecting aluminum cladding/copper-clad aluminum), paired with high magnetic conductivity oriented silicon steel/amorphous alloy iron core, no-load/load loss is 15% -25% lower than the national standard, with lower temperature rise, higher efficiency, and noise ≤ 45dB。
  • High isolation/strong anti-interference: multi-layer insulation, vacuum sealing, F-class/H-class insulation, power frequency withstand voltage * * ≥ 3kV-4kV * *, surge resistance/EMI optimization, wide temperature range * * -40 ℃~125 ℃ * *, suitable for harsh industrial/outdoor/marine environments
  • ull power and full category: covering<br>0.5VA~100kVA, including high-frequency switches,EI/ring/isolation/threephase/control/photovoltaic/marine/medical dedicated transformers, perfectly matched with industrial control, 5G, energy storage, charging piles, machine tools, and power supply machines

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Three phase transformer1
Three phase transformer2
Three phase transformer3
Three phase transformer4
BK transformer

2、 Customization and Delivery (Differentiated Core)

  • High speed non-standard customization: Designed one-on-one according to voltage, power, size, IP protection (IP54/IP65)explosion-proof/waterproof/classification, and safety regulations, sample production takes 7-15 days and mass production takes 2-4 weeks, far exceeding the industry average cycle
  • Local fast delivery: Huizhou Huiyang has its own factory and a supply chain in the Pearl River Delta. Regular spot goods take 3-7 days, and small batch urgent delivery takes 5 days, which is 50% shorter than outside the province/imports+
  • Full process strict inspection: fully automatic winding/gluing/testing, MES traceability AOI、 High voltage, loss, temperature rise full inspection, direct pass rate ≥ 98%, strong batch consistency
  • afety compliance coverage: Passed through CCC, CE, UL, T Ü V, RoHS, CQC, CCS classification societies, with full access to domestic, European, American, and Southeast Asian exports, directly available for high demand scenarios such as medical, industrial control, and photovoltaic

High-performance toroidal transformers

  • It features customization, high power, low magnetic leakage, and low noise, and is widely used in industries, audio systems, medical equipment, and precision devices.
  • Power range: 30VA to 15,000VA (15KVA), with higher power options available upon request
  • Input voltage: 220V/380V (single-phase)
  • Output voltage: 12V, 24V, 36V, 48V, 110V, 220V, etc. Multiple sets of windings can be customized
  • Core: High quality cold-rolled silicon steel strip winding, no air gap
  • Winding: Pure copper enameled wire, sufficient power, low temperature rise
  • Efficiency: 90% to 95%
  • Insulation: B-level/F-level insulation, withstand voltage 4000VAC
•Low magnetic leakage, low EMI: Closed-loop magnetic circuit with minimal external interference • Ultra low noise: seamless iron core, almost no buzzing sound
Product Features1
• Small size and light weight: about 30% smaller than EI type for the same power•Low heat generation, long lifespan: minimal iron loss, uniform heat dissipation
Product Features2
• Full parameter customization: Voltage, power, size, lead out, shielding, and waterproofing can all be customized
Product Features3

Oil-immersed voltage stabilizer

Core voltage stabilization function

  • He oil-immersed voltage stabilizer is a high-power, heavy-duty automatic voltage regulation device, whose core function is to stabilize fluctuating input voltage and output it to the rated value (primarily 380V/400V)
  • Automatic voltage regulation: Real time detection of input/output voltage, servo/on load switch automatically adjusts winding turns ratio, input fluctuation ± 15% ± 20%, output accuracy ± 1% ± 3% (high-precision models can reach ± 0.5%)
  • Wide range adaptation: Suitable for scenarios where the power grid is unstable, voltage suddenly rises and falls, and high-power motors frequently start, suppressing voltage drops/surges
  • Three phase balance: Three phase independent/linked regulation, improves three-phase voltage imbalance, and protects three-phase loads
  • Efficient heat dissipation: Oil convection takes away the heat of the winding/iron core, and heat dissipation is much better than air. It supports long-term full load, 1.3-1.5 times short-term overload, low temperature rise, and long service life
  • Metallurgical, mining, chemical, factory production lines, large motors, tunnels/engineering, ships, outdoor power stations, export power support and other high-power, harsh environment, high reliability requirements
Overvoltage/undervoltage protection: automatically cuts off or alarms when exceeding/falling below the set threshold to prevent equipment from burning out
Protection function1
Over temperature protection: If the oil temperature/winding temperature exceeds the limit, an alarm will sound and the machine will shut down to prevent thermal faults
Protection function2
Overload/short circuit protection: limiting current, tripping, preventing winding overheating and breakdown.Automatic protection in case of three-phase phase loss or phase sequence error
Protection function3

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China Best Control Transformer Manufacturer & Supplier - ZHAOJUN Power

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