Thytronic SME2-IS Installation Manual

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I N S T A L L A T I O N I N S T A L L A T I O N
SME2-IS fault detector are designed in conformity with ENEL GSTP011 (Protection and control devi-
ce for MV substation – RGDM control unit); they are installed in remote-controlled Secondary Sta-
tions to detect phase-phase and phase-ground fault both on neutral compensated and both neutral
isolated with no need of modification switching from a configuration to the other regardless of the
feeding directions.
In particular they allow to:
• detect the presence of multi-phase and phase to ground fault,
• detect the loss of voltage on the line,
• measure the voltage and active and reactive power on MV line,
• operate in case of fault or on remote control from the UP, opening or closing of DY800
• Interface with generators present on the MV line to coordinate voltage regulation along line and
remote trip signals.
Input circuits are suitable to acquire measurements using integrated current-voltage phase sensors;
device can acquire, using a software switch, current measurements inputs using active sensors
(signal is proportional to the current detected by sensor) or passive sensors (DJ 5400 e GSTC005
- signal proportional to the value of current derivative against time); the device allows current and
voltage measurements using IEC 61869-10 and IEC 61869-11 Low Power sensors.
Omopolar value are obtained through vectorial calculation of current and phase voltage measure-
ments. Two communication Ethernet ports are available, one of them with IEC61850 protocol.
To assure full compatibility with RTU already existing on secondary installations, SME2-IS is equip-
ped with double interface, able to communicate both with UP (DX1215) and with future communica-
tion devices.
Settings, reading measurements and reading of fault recordings can be made using a PC or using
the Ethernet port together with software Thysetter, freely available; all these operations can be made
even using front panel (MMI).
In this manual there are instructions needed to mount, settings and commissioning.
Thytronic keeps the right to improve the product without further notice.
This device comply with EU directives about:
• EMC directive: 2014/30/EC
• LV directive: 2014/35/EC
Contacts: THYTRONIC Technical service
All rights reserved; it is forbidden to copy documents without permission of Thytronic, as well as
copy or modify firmware and relative software.
The product is under one year warranty.
INSTALLATION GUIDE SME2-IS - 06|2021
www.thytronic.it