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<br />Energport Inc Page 8 /24 <br />3 Battery String <br />Each battery string consists of 13 battery trays, 1main control trays. <br />Battery tray: Each battery tray consists of up to 8 modules in series, and it includes cells, wire <br />harness, DC cables and one CSC. <br />Main control tray: Main control box is the main control unit of the battery string/cabinet; Main <br />control tray consists of EMS-Slaver, SBMU, harness, DC Disconnect, Current Shunt and 24VDC <br />power supply. EMS-Slaver oversees the whole batteries string’s management which includes <br />receiving and analysis the data uploaded by SBMU, communicating with other equipment though <br />Ethernet and RS485. <br /> <br /> <br />Figure 4 Battery String <br />3.1 Electrical diagram in a single battery string <br />CSC1 CSC2 CSC(n-1)CSC(n)SBMU <br />Main Control Tray <br />INCAN <br />AC/DC <br />Battery String <br />24V <br />Battery Tray <br />EMS- <br />Slaver <br />CAN1 RS-485 <br />120VAC <br />EPOLAN <br />HV+ <br />HV- <br />Battery Tray Battery Tray Battery Tray <br /> <br />71