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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 structure centered around three major business segments: smart grids, new-energy vehicles, and aerospace. Its sales network covers over 30 provinces, municipalities, and autonomous regions across China, and its products are exported overseas, earning unanimous praise from both domestic and international customers.
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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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No. 350, Lijiang Road, Shijiazhuang High-tech Zone
DC power supply system The manufacturer will show you: the operation and maintenance of DC power supply system
Release time:
Apr 13,2021
Operation and maintenance of DC power supply system: DC power supply system manufacturers tell you that power generation companies, transmission and substations (substations, converter stations, series compensation stations, communication stations) and other departments in the power system will have many battery DC power devices (including batteries). , Charging device, DC power supply, etc.). The continuous operation of this type of equipment ensures the stability and safety of the power system.
The DC power supply system manufacturer tells you that in the process of equipment installation and commissioning, and maintenance personnel in the daily evaluation, operation and maintenance of power transmission and transformation equipment, multi-functional testing instruments are the guarantee for improving work efficiency.
DC power supply system manufacturers tell you the common test scenarios of power equipment:
Voltage, current and power amplitude and waveform, power factor, and harmonics of DC or AC power supply
Whether the protection of the charging device starts normally when the output current exceeds the limit
Battery capacity test
Accuracy of voltage stabilization and current stabilization of charging device
Whether the voltage fluctuation and ripple coefficient of the DC bus exceed the standard
The manufacturer of the DC power supply system tells you that when the charging device is in operation, it will generally require the return to the AC input end of the harmonic current content rate of each sub-harmonic current, which should not be greater than 30% of the fundamental current.
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