1. excellent performance 2. higher accuracy . 3. to integrate measuring and controlling.

Description  

YD-841 micro-computer automatic switching device for spare power source/stand-by power  integrates measuring and controlling functions, which can be used for automatic switching for spare power source in the power plant and substation with voltage 110kV and below. It has functions of tele-control, tele-metering, tele-signaling and tele-adjusting.

 Measuring and controlling function

1. Automatic switching functions for two kinds of incoming line/transformer.

2. Automatic switching functions for two kinds of section switch (bridge).

3. Automatic synchronism check clsoing function (three synchronic points).

4. Automatically selecting automatic switching function based on system running situation.

5.8 sets of protective setting group.