Horstmann Fault Passage Indicators are available in New Zealand from our joint venture company Gridworks.

Short circuit and Earth Fault Indicators are used to identify faults within medium voltage networks. Also referred to as Fault Current Indicators, the devices are used to indicate if a fault current has been detected at that point of the network.

By using devices installed at strategic points of the network, lines staff can quickly identify the network section where a fault resides, allowing them to concentrate on that section. Fault Passage Indicators can detect permanent and transient faults on feeder cables and overhead lines.

Indication can be by the unit itself, or back to the control room via SCADA. As part of a Smart Grid system, selected units support the relaying of additional information such as load current and conductor temperature.