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line protection relay

Line protection measurement and control device is simply illustrate that is the device use for the line cabinets and outlet cabinets for protection and measurement .our Company with strong technical research and development strength and a good business management system, already had the very perfect 110KV and the below voltage grade microcomputer product line of line protection ,The main circuit protection products contains 9411 economic type line protection and control device, 9511 standard line protection and control device, 971 high-end line protection and control device, 994 line differential protection and control device, 997 line optical fiber longitudinal difference protection and control device, 987 line distance protection and control device.Since the company was founded in 8 years, by dint of the down-to-earth style of work, a good sense of service and reliable product quality, rapidly increased business , now the related computer line protection device annual sales have exceeded 3000, the products have been widely used in electric power, hydraulic, State Grid, China Southern power grid and so on many national key projects.
  • 987S transmission line distance protection relay

    987S transmission line distance protection relay

    987S transmission line distance protection relay adopts High performance micro controller STM32F103VET6 chip, based on ARM Cortex-M3 kernel; it integrates 32 digits RISC processor, low power consumption, high performance analog technology, high speed DMA channel and rich in chip set, and JTAG simulation debugging; No Adjustable device, Site maintenance free, and main protection and backup protection for transmission lines with voltage classes of 220kV and above.

  • 9411 Line Protection Relay

    9411 Line Protection Relay

    9411 Line protection device is a device that integrates protection and measurement. Because the device has the characteristics of small size, ultrathin (8 cm) and so on, so it is especially suitable for the protection and measurement and control of ring main unit and box transformer substation. Needed high accuracy, high requirements of measurement and control device for relay protection, you could select and use my company's 9511 line protection devices and 9711 line protection devices.

  •  9671 line protection relay

    9671 line protection relay

    9671 line protection unit is mainly used in such voltage of 110KV,66KV,35KV.10KV.6KV,3KV,the device has complete function of protection,control and fault recording,also has the 485 communication,Ethernet communication and optical fiber communication,is the best choice of the cabinet of 110KV and 66KV,if you need the economical and practical line protection unit of the 35KV below voltage,you can choose the 9511 and 9411line protection unit.

  • 9511 line protection  relay

    9511 line protection relay

    9511 Line protection measuring and control device mainly used to 35KV、10KV、6KVsuch voltage level of user’s works and small municipal engineering projects with no special requirements,the device used the international advanced DSP chip which Set protection, remote control, load protection and communication in one.Widely used in 35KV, 10KV, 6KV and the following voltage level substation, power plant and other two power equipment;With function of protection, telemetry, remote communication, remote control,achieved the unattended function.

    • 987S transmission line distance protection relay

      987S transmission line distance protection relay

      987S transmission line distance protection relay adopts High performance micro controller STM32F103VET6 chip, based on ARM Cortex-M3 kernel; it integrates 32 digits RISC processor, low power consumption, high performance analog technology, high speed DMA channel and rich in chip set, and JTAG simulation debugging; No Adjustable device, Site maintenance free, and main protection and backup protection for transmission lines with voltage classes of 220kV and above.

    • 9411 Line Protection Relay

      9411 Line Protection Relay

      9411 Line protection device is a device that integrates protection and measurement. Because the device has the characteristics of small size, ultrathin (8 cm) and so on, so it is especially suitable for the protection and measurement and control of ring main unit and box transformer substation. Needed high accuracy, high requirements of measurement and control device for relay protection, you could select and use my company's 9511 line protection devices and 9711 line protection devices.

    •  9671 line protection relay

      9671 line protection relay

      9671 line protection unit is mainly used in such voltage of 110KV,66KV,35KV.10KV.6KV,3KV,the device has complete function of protection,control and fault recording,also has the 485 communication,Ethernet communication and optical fiber communication,is the best choice of the cabinet of 110KV and 66KV,if you need the economical and practical line protection unit of the 35KV below voltage,you can choose the 9511 and 9411line protection unit.

    • 9511 line protection  relay

      9511 line protection relay

      9511 Line protection measuring and control device mainly used to 35KV、10KV、6KVsuch voltage level of user’s works and small municipal engineering projects with no special requirements,the device used the international advanced DSP chip which Set protection, remote control, load protection and communication in one.Widely used in 35KV, 10KV, 6KV and the following voltage level substation, power plant and other two power equipment;With function of protection, telemetry, remote communication, remote control,achieved the unattended function.

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