VOLTAGE INDICATOR TYPE SPA surface-mounted
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VOLTAGE INDICATOR TYPE SPA surface-mounted General Description 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 fibre 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. Features and Option Power supply options: Remote indication options: a) External power supply of 12V DC - 110V DC b) External power supply of 230V AC a) One relay for indication of no voltage on all phases b) One relay for indication of no voltage on one phase c) Three relays for indication of no voltage for each phase possible on round and flat conductors voltage sensors L1, L2 and L3 1 Relais: not connected 3 Relais: SCADA change-over contact L1 1 Relais: SCADA change-over contact L1, L2 and L3 3 Relais: SCADA change-over contact L2 1 Relais: not connected 3 Relais: SCADA change-over contact L3 External power supply 12V DC - 110V DV Or External power supply 230V AC ELEKTRO-MECHANIK EM GMBH Document Rev. 1 Ringstr. 4 - D-42553 Velbert / Germany Page 1

DATA SHEET Subject voltage ranges The presence of voltage on each conductor is indicated by a permanent blinking of the respective LED flashing frequency indication unit suitable for surface installation dimensions: indication unit protection class: indication unit protection class: sensors power supply a) External power supply of 12V DC - 110V DC b) External power supply of 230V AC (Power supply should be independent of the monitored network.) SCADA contact 1 Relais: 1x change-over contact 3 Relais: 3x change-over contacts max. 230 V AC / max. 2 A / max. 30 W operation temperature range...

Voltage Indicator Type SPA 42553 Velbert www.enng-ger.com Made in Indication unit lype SPA Erstellt am/von: created on/by: Zeichnungsnummer/ drawing number: 351572 00 ELEKTRO-MECHANIK EM GMBH Document Rev. 1 Ringstr. 4 - D-42553 Velbert / Germany Page 3

ELEKTRO-MECHANIK EM GMBH Document Rev. 1 Ringstr. 4 - D-42553 Velbert / Germany Page 4