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Introduction and application of device
The HF-XBJK2000G-S photovoltaic box-type substation intelligent monitoring device is used for analog quantity acquisition, electrical quantity protection, non-electric quantity protection, remote control and communication for the transformer with split winding of the photovoltaic box-type substation side low voltage sides. 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.
Characteristics and advantages
● 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.
Functional configuration
● 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 27-channel input data of remote communication signal at low voltage sides.
● Control: 6-channel standby relay outlet configuration (8-channel for optional)
● Communication: 1-channel Ethernet communication interface (RJ45), a variety of communication protocols (IEC60870-5-103, 104 and TCP-Modbus, Modbus-RTU, DL/T645-1997, 2007) for 2-channel RS485 communication interface.
Rated data
● 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.
Reliability
● 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
Operating environment
● Ambient temperature: Operating: -40℃ - +70℃;
Storage: -45℃ - +85℃.
● Relative humidity: The monthly average maximum relative humidity of the wettest 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).
Notes
● 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.