Huajian HJ500 series microcomputer comprehensive protection device

Zhejiang Huajian Electronic Technology Co., Ltd., as a supplier specializing in the R&D and manufacturing of intelligent power distribution system automation equipment, has long provided users with advanced technology and high-quality services. Reliable, energy-saving and environmentally friendly intelligent power distribution products meet the needs of all aspects of the power system. The main products of the Electronic Branch include: microcomputer comprehensive protection devices, motor protectors, rail-type energy meters, power monitoring instruments, power transmitters, thermal intelligent instruments, temperature intelligent instruments, isolation modules, pressure transmitters, switching power supplies, It is composed of current transformers and other major categories. Among them, the power monitoring instruments include a series of harmonic analyzers, a series of economical harmonic meters, a series of network power meters, a series of multi-functional power meters, a series of digital measurement and control meters, a series of programmable smart power meters, and a series of digital display transmission smart meters. , series of digital display electricity meters, series of digital display electricity meters, embedded installation meters and other products. Microcomputer comprehensive protection devices include B-ready automatic protection devices, economical microcomputer comprehensive protection devices, digital microcomputer protection and measurement and control devices (special for small cabinets of ring main units), series microcomputer comprehensive protection devices, universal microcomputer comprehensive protection devices, line protection Measurement and control device, transformer measurement and control device, B transformer backup protection device, used transformer protection measurement and control device, B backup automatic protection device capacitor protection measurement and control device, B generator backup protection device, motor measurement and control device, digital parallel device, transformer differential protection Device, generator differential protection device, 3 motor differential protection device, microcomputer small current system grounding line selection device, microcomputer harmonic elimination device, 3 background monitoring software system. Motor protectors include motor protectors and low-voltage line protection devices. The low-voltage branch mainly produces plastic case circuit breakers, series B-class dual power automatic transfer switches, class B dual-power automatic transfer switches, series intelligent electronic circuit breakers, frame circuit breakers and other low-voltage switch series. Products are widely used in metallurgy, petrochemical, electric power, construction, municipal administration, environmental protection, national defense, water conservancy and other industries. Some products have been exported together with complete sets of equipment, resulting in greater social impact and economic benefits. Some products have also been indirectly used in BB Engineering projects, Belarus power plant, France Telecom, Olympic projects and other major projects.