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AboutShijiazhuang Tonghe Electronic Technology Co., Ltd. is a high-tech enterprise dedicated to technological innovation, product innovation, and management innovation in the power electronics industry. It integrates R&D, manufacturing, sales, and service in the power electronics sector, providing customers with comprehensive energy solutions. -
ProductAfter more than two decades of rapid development, the company has established an industrial pattern covering three major business sectors: new energy, smart grid and aerospace. Its sales network covers more than 30 provinces, municipalities and autonomous regions nationwide, and its products are sold to overseas markets, winning high recognition from customers at home and abroad.
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PartnerIn the future, the company will continue to uphold its corporate mission of “embracing an entrepreneurial spirit, focusing on power electronics, efficiently utilizing energy, and serving global users,” while adhering to the core values of “contribution, mutual benefit, gratitude, efficiency, and innovation” to provide users with high-quality products and services.
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BlogsCommunicate with sincerity and courageously take responsibility; keep the customer at the center of our focus, continuously optimize the company’s management systems and processes, consistently identify and meet customer needs, deliver and enhance customer value, and maintain the company’s rapid growth.
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Join usThe company consistently upholds a talent philosophy centered on “people first,” actively fostering an atmosphere of respect, understanding, integrity, and friendliness. We provide a robust platform for talent development, enabling our employees to become powerful pillars of the company’s sustained growth and achieving mutual growth and shared success between the company and its talents.
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InvestorDisclose information relevant to investors’ decision-making in a truthful, accurate, complete, timely, and fair manner; strengthen communication and engagement with investors; and enhance and improve investor relations management.
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ContactWith a spirit of self-respect, self-reliance, and relentless self-improvement, coupled with an open mind, we focus on customer needs based on continuous learning and absorption. We dare to take risks, keep exploring, and steadily build management models and technological products that reflect our unique characteristics.
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Contact Info
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Headquarters address:
No. 350, Lijiang Road, Shijiazhuang High-tech Zone
TH230D20ZZ-3G
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- Description
- Parameters
- Application
- Product Info
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Product Introduction
Our company’s independently developed TH-series intelligent high-frequency switching power supply is specifically designed for power systems and features “four‑remote” functionality. The modules employ world‑leading resonant voltage‑type dual‑loop control technology, offering advantages such as compact size, light weight, high efficiency, and excellent reliability. Equipped with a standard RS‑485 interface, the product integrates seamlessly with automation systems and is suitable for substations, power plants, and hydropower stations.
Product Features
·High efficiency
·Lightweight
·Small size
·Built-in DC output isolation diodeProtection function
·Output overvoltage protection
·Output current-limiting function
·Output short-circuit protection
·Output overcurrent protection
·Module Parallel Protection
·Over-temperature protection -
Input voltage range
304–456 VAC
Output voltage range
176–300 VDC
Maximum output current
20A
Efficiency
≥93%
Power factor
≥0.93
Voltage regulation accuracy
≤±0.5%
Steady-flow accuracy
≤±1%
Ripple factor
≤1%
Parallel operation current imbalance degree
≤±3%
Start-up delay
3~8s
Storage temperature
-40～+60℃
Operating temperature
-10～+40℃
Module cooling method
Natural air cooling
Load rating
Level I Continuous operation at 100% of the rated output current.
Automatic current-limiting feature
When the output current exceeds the set output current limit, constant-current output is activated.
Output Overvoltage Protection
Output voltage exceeds 320±16 VDC automatic output shutdown
Output short-circuit protection characteristics
When a short circuit occurs, the module automatically protects itself. Automatic recovery upon fault clearance
Size
324×146×400 mm (front view module, excluding panel; height × width × depth)
Weight
16kg
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Customer Message
Dedicated to providing customers with customized system energy solutions.