The HSR140H comprehensive protection device is applicable to 20kV and below substations, distribution substations, and ring main unit systems. It mainly provides current protection and grounding protection functions as well as control functions, featuring interphase short circuit protection, overcurrent protection, inverse-time overcurrent protection, and zero-sequence overcurrent protection. This device offers an RS485 communication interface, which can be combined with other intelligent devices and communication management units to form an automated system.
The HSL5510U line protection measurement and control device is suitable for current-type protection-based line protection, measurement and control at voltage levels of 110kV and below. It can be installed separately in local switch cabinets or grouped in a centralized panel, and it provides communication interfaces. It can also be combined with other protections and automation equipment through communication interfaces to form an automation system.
The HSR361E photovoltaic box-type transformer protection and monitoring device is a highly intelligent product independently developed by our company in response to the characteristics of photovoltaic grid-connected power generation and the extensive requirements of customers for protection, measurement and control, as well as communication of box-type transformers. This device integrates a communication management unit, an optical fiber ring network switch, and complete protection and measurement control functions of box-type transformers.
Comprehensive four protection: line, transformer, buscoupler, capacitor
Two bus voltage parallel
Two bus voltage parallel and switch
Independent operation circuit device cooperated with CB
Transformer non-electricity protection device
Integrate non-electricity protection and CB operation circuit
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Nanjing Hosen Science and technology Co.,Ltd. was founded on October 20, 2003. It is located in the beautiful scenery of Jiangning Economic Development Zone in the ancient city of Nanjing. The company focuses on the research and development, production, operation and sales services of intelligent power grids, power system automation and relay protection products. It has been deeply engaged in the manufacturing of relay protection equipment, and with professional strength, has firmly established the foundation of the industry.
Address：No. 601, Building 10, Ji Yin Avenue 3118, Muling Sub-district, Jiangning District, Nanjing City, Jiangsu Province Telephone：025-84645390 Email：3100417487@qq.com