We offer perfect solutions for distribution grid automation, including overhead line and underground short circuit & earth fault line monitoring. The Four-Faith earth fault indicators enable the electricity distribution network engineers to quickly identify the faulty section of network and restore power supplies to customers on healthy sections in the shortest time possible. Our Cable earth fault indicator is widely used in 6~35KV Cable line distribution networks. These earth fault passage indicators are usually installed in ring main unit(RMU), cable distribution box and switch cabinet. Both of earth fault indicator and cable line fault indicators have local and remote type for choice.