因 ZZQ-3模拟型同期装置设备陈旧 ,多次发生同期设定值变更而不能并网 ,延误了执行调度的命令。采用 WX-98型微机准同期装置后 ,消除了缺陷。为了保证同期合闸的可靠性 ,在同期合闸回路中应串接同期鉴定继电器的常闭触点 ,只有这样才能发挥同期速度快、同期准确和同期稳定的功能 Due to the outdated equipment of the ZZQ-3 analog type synchronous device, the synchronization setting value change occurred several times and could not be connected to the network, which delayed the execution of the scheduling command. Using WX-98 microcomputer quasi-synchronization device, eliminating the defects. In order to ensure the reliability of the closing of the same period, the closing circuit in the same period should be connected in series to identify the normally closed contacts of the relay, the only way to play the same period of fast, accurate over the same period and stable function over the same period