Transformer monitoring and diagnostic system (TMDS) based on ARIS software-hardware complex is intended for acquisition and processing of the main transformer parameters in continuous manner.
Functions:
Supervision of RMS values of current and voltage on HV, MV and LV sides
Supervision of active, reactive and apparent power and cos φ
Supervision of the temperature of upper/lower oil layers and winding temperatures
Recording of ambient temperature
Supervision of insulation parameters for high voltage bushings
Supervision of acceptable short-term voltage rises on HV side
Supervision and recording of load tap changer position and number of LTC operations
TMDS monitors the technical conditions forming the expert review and forecast of this technical conditions of equipment using real time calculation model, namely:
supervision of acceptable regular and emergency overloading
supervision of temperature of winding hot spot in compliance with EC 60076-7
supervision of winding insulation aging
calculation of load ability for transformer equipment