对于旧站改造的“四遥”变电站，由于设备的限制，同期合闸无法实现遥控操作。
For the retrofitting substations, the remote switch on operation with synchronism check can not be carried out because of the equipment limitation.
试验结果表明，改善通道质量、提高通信速率和改进通信规约是提高变电站遥控成功率的关键。
The test results show that improving the communication links, increasing the communication speed and upgrading the protocol are the key measures for higher success rate of substation telecontrol.
可与变电站综合自动化设备接口，具备数据通讯，实现遥测、遥控等功能。
It may connect with interface of the transformer substation synthesis automatic equipment, and it has more function: the data communicating, telemetering, remote control.
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