The general inverse timecharacteristic is introduced, and the setting principles of current and time when inverse time characteristic is scarce or voltage transformer breaks are provided.
介绍了普通反时限特性，并提供了缺乏反时限特性段或电压互感器断线时的电流、时间整定原则。
2
This element is of proper shape and cross-section to carry rated current continuously and to melt in accordance with a specific time-currentcharacteristic on heavy overload or short circuit.
At the time of failure, no matter what kind of start state of voltage phase, the zero-sequence transient current has the characteristic of inverse phase.