Voltage indicator

Type SPA

The voltage indicator type SPA can be used in medium voltage networks with a rated voltage of 5 kV to 36 kV. Their function is a permanent indication of the voltage status of the monitored cores. The indication of the voltage is permanently done by one LED indicator for each phase. The connection between the sensors and the display unit is done by potential-free fi bre optic cables. The sensors must be mounted on unscreened conductors. For the operation of the display device, an auxiliary power supply is required.

The behaviour of the remote contact (NO or NC) must be selected when placing the order.

It is possible to select one remote contact for each phases. Alternatively one common remote contact for all three phases together can be ordered, which is performing a switch operation, as soon as there is no voltage detected on any phase or if there is no voltage on all phases.