Photovoltaic box-type substation measurement and control protection communication device HFNA2-S

HFNA2-S photovoltaic box-type substation measurement and control protection communication integrated device, as an integrated device of communication manager, optical fiber ring looped network switch and measurement and control of box-type substation, is designed for data acquisition and communication protocol for the intelligent equipment, such as photovoltaic box-type substation (analog quantity acquisition, electrical quantity protection, non-electric quantity protection, remote control), inverter and combiner box, which transfers the real-time data of photovoltaic area to the booster station integrated automation system, AGC/AVC, remote centralized control system, etc. through communication methods, such as Ethernet, optical fiber ring network, WiFi, 3G and 4G. It realizes the remote management and automatic monitoring of box-type substation for the booster station, and meets the operation management requirements of "unattended operation and only a few persons on duty" for the PV power station. 

● Rear plug-in/out mode, separation of strong and weak current. 

● Being able to save total 400 recent event reports and operation reports of four groups.

● Adopt OLED graphic display with two languages of Chinese and English. 

 ● Input power supply for both AC and DC application. 

 ● Wide temperature working environment of -40°C - 70°C. 

 ● Switching of 8 sets of independent definite value. 

●The built-in professional communication management module and LINUX embedded real-time operating system can realize the centralized collection and transmission of communication information of intelligent equipment belonging to the photovoltaic power generation system to ensure real-time, stable and reliable transmission of communication data. Meanwhile, it can communicate with AGC, integrated automation system and optical power prediction system, with communication response time no more than 0.5s; it can regulate the power and start/stop of the inverter remotely. It can reliably communicate with inverter, combiner box, DC cabinet, etc., with relatively high response speed. Besides, refresh and response time of background data is no more than 1s. 

● Protection: Complete electric protection function of the two windings (three-section overcurrent, overload, zero-sequence overcurrent, low voltage, overvoltage, TV disconnection, TA disconnection protection), DC out-of-limit protection, and non-electric quantity protection. 

● Measurement: 12-channel data acquisition of voltage and current, 6-channel data acquisition of direct current and 54-channel input data of remote communication signal at low voltage sides. 

 ● Measurement: 12-channel data acquisition of voltage and current, 6-channel data acquisition of direct current and 54-channel input data of remote communication signal at low voltage sides. 

● Control: 6-channel standby relay outlet configuration (8-channel for optional)

● Communication: 8-channel RS485 master station interface, 2-channel fiber Ethernet, 2-channel electric Ethernet communication interface, with the application of various communication protocols (IEC60870-5-101, IEC60870-5-103/104, DMP500, Modbus, CDT, 9702, DL/T645-1997, 2007, private protocol, etc.). 

● Rated supply voltage: DC or AC 220V or DC 110V (differentiate specifications for ordering and using). 

● Rated AC data: AC voltage 800V; AC current 5A or 1A; Rated frequency 50Hz. 

● The enterprise standard is higher than that of GB/T13729-2002 Remote Terminal Unit Equipment, and the higher standard between GB/T15153.1-1998 Telecontrol Equipment and Systems and GB/T17626.4-2008 Electromagnetic Compatibility - Testing and Measurement Techniques is implemented regarding the electromagnetic compatibility; The average fault-free time shall not be less than 50,000 hours. 

● Check whether the type, version number and electrical parameters of the device conform to those of the ordering.

● Check whether plug-ins of the device are connected reliably, and whether the cables and rear terminals are fixed reliably.

● Strictly adjust and set the parameters according to the definite value list, and make sure that the protection items not in operation should be set as quit and confirmed.

● If any test project has been conducted, clear all protection event records before the device is put into service. 

● Ambient temperature: Operating: -40℃ -+70℃; Storage: -45℃ - +85℃.

● Relative humidity: The monthly average maximum relative humidity of the wet month is 90%, and the monthly average minimum temperature is 25℃ and there is no condensation on the surface. When the maximum temperature is +40℃, the average maximum humidity is less than 50%.

● Atmospheric pressure: 80kPa - 110kPa (relative altitude below 2km).