Remote Terminal Unit for remote control and surveillance of secondary substation in medium voltage networks.
WM-UP8 (16)
The UP devices, installed in secondary substations of medium voltage distribution networks, are intended to:
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Monitor the operation of the medium voltage networks (detect switchgear status and fault signals, acquire field measurement);
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Remotely control the secondary substations switchgears;
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Implement automatic procedures for the selection of the faulty branch.
The WM-UP8(16) is composed of:
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Elaboration Unit (UE) device, standard version (UE8) or extended (UE16)
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Power supply and battery charger (PSBC) device
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Cabinet and wiring
UE Elaboration unit
The UE device is the hearth of the UP since it hosts the monitoring and remote-control logic of the secondary substation.
UE can record the substation temperature using a 2 or 4-wires temperature sensor.
The UE is suitable for mounting on 19’’ standard rack and can be provided is two versions:
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UE8 or Standard version, 4U high
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UE16 or Extended version, 7U high
Communication Protocols1
IEC 60870-5-101 via RS232 port
IEC 60870-5-104 via Ethernet or RS232 port
MODBUS TCP/IP via Ethernet port
IEC 61850 MMS
PSBC
The PSBC charges the batteries that supply power to the components installed in the secondary substation (UE, RGDAT/RGDM, switchgears) and supply +12Vdc to the DCE.
The PSBC is suitable for mounting on 19’’ standard rack and is 3U high.
Protocols are also available in their secured version according to IEC 62351
