Electrical Substation Maritsa-iztok has three distribution Switchyards – 400
kV, 220 kV и 110 kV, and is located in Galabovo Municipality, Stara Zagora
District. Rehabilitation of 110 kV Switchyard is set out in the Investment
Program of ESO EAD. It is the second Project to be implemented by EL KONTROL at
this Substation after construction of entire new 400 kV Switchyard in year 2010.
The Project includes design, delivery, implementation and commissioning of
the Switchyard. Awarded scope includes dismantle of existing 110 kV equipment
and adjacent structures, installation of new circuit breakers, disconnectors,
support insulators, current and voltage measuring transformers onto concrete
foundations and tables. New gate structures will be erected, so as concrete
roads, cable ditches, fence, lighting, earthing and lightning protection
Project includes further laying and connection of power and control cables,
manufacturing and installing control-relay cabinets, power supply panels,
electro-metering panels, telecommunication panels.
It is foreseen to be done reconfiguration of existing MicroSCADA control system.
All the necessary commissioning works will be done and the 110 kV Switchyard
will be put under operational use.