For backup protection against high resistive ground faults, there will be a dual polarized directional overcurrent relay, inverse time with instantaneous trip attachment.

对于后备保护装置防止高阻抗接地故障，将配置一只双极方向过电流继电器，同瞬时跳闸附件的时间成反比。

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Backup flames, also lit from the birthplace of the ancient games in Olympia, Greece, are with the relay at all times to relight the torch.

为重新点燃火炬，整个传递工程中一直携带着备份火种，备份火种也是在古代奥运会的发源地-希腊奥林匹亚点燃的。

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The negative sequence distance relay gets free from the winding connection of the transformer. So it is the best choice to use the kind of the distance relays for the transformer backup protection.

负序距离继电器的行为与变压器绕组的接线无关，所以它是作为变压器后备保护的距离继电器的最佳选择。

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The primary computer that controls critical station functions defaulted to a backup computer, but it was not letting the station communicate with Nasa's Tracking and Data Relay Satellites, the US space agency said.

BBC: Nasa back in contact with the International Space Station