| 摘要 |
The present invention relates to ICSA Distribution Transformer Monitoring System consisting of : 32 bit ARM controller based mother board; IEC l O l, IEC-1 04, DNP3, or Modbus protocol support to communicate with master; Digital outputs with Relays (Potential free contacts) in SBO (Select before Operate) configuration; Digital inputs (optical isolated), Expandable in nature; Serial ports (RS232/RS485) to communicate with master and configuration tool; Master com' port uses RTS signal with preamble & post amble; RTS watch dog for master station communications; High accuracy on-board RTC (Real Time Clock); Master communication port baud rates configurable with jumper settings; LED indications to display Relays and Digital inputs status which LED indication may be visible from see through window on front door; The front door of DTMS having locking system; Low battery message is provided in case of battery get drained beyond 1 1V; Low battery cutoff is provided in case of battery get drained beyond 10.5V; 32K NV RAM for parameter and events storage Expandable in nature; Front-end software; Connectors for CT's; Onboard Temperature sensor to monitor temperature in DTMS box. |
