ISH100/30025/0/0/00/0/00/00/00 ELAU

For the power supply powered by the DCS system,the power supply with better isolation performance is generally used,while the power supply powered by the transmitter and the power supply of the instrument with direct electrical connection of the DCS system have not received enough attention,although certain measures have been taken.Quarantine measures,but generally not enough.Therefore,on-site uninterruptible power supply(UPS)is often used for power supply to improve the safety and reliability of power supply.The UPS should also have strong interference isolation performance.It is an ideal power supply for DCS control systems.

对于DCS系统供电的电源，一般都采用隔离性能较好的电源，而对于变送器供电的电源和DCS系统有直接电气连接的仪表的供电电源，并没受到足够的重视，虽然采取了一定的隔离措施，但普遍还不够。因此，现场多采用在线式不间断供电电源（UPS）供电，提高供电的安全可靠性，其UPS还应具有较强的干扰隔离性能，它是一种DCS控制系统的理想电源。