With the rapid development of power industrial in our country, the protectiondevice for transformer whether can exactly, timely, reliably act, which is one of animportant factor for power grid to guarantee running securely in modern electricsystem.

• 随着我国电力工业的迅速发展,在现代电力系统中,变压器保护装置能否准确、及时、可靠的动作是保证电网安全运行的关键因素之一。