1.to integrate protecting, measuring and controlling. 2.standard: DL/T667-1999, IEC-60870- ... protection. YD-830 microcomputer monitoring&controlling protection device for motor integrates protecting, measuring and controlling, which is used to protect ... tele-metering, tele-signaling and tele-adjusting.Measuring and controlling function1. current differential protection2. short-circuit and long-running ...