Rehabilitation of Units 3 and 4 in Maritsa East 3 TPP - scope electrical works.
Contractor: Enel Produzione S.p.A - Branch Bulgaria.
The Contract covers the following electrical installation works:
- Disassembly of existing equipment - transformers, switchgears, LV and MV cables, switchboards, cable trays, metal structures, bus-bar system;
- Erection of new equipment - laying and connection of LV and MV cables, switchboards, circuit breakers, cable trays and pipes, grounding system;
- Rehabilitation of MV equipment;
- Disassembly and erection works for 220êV equipment;
- Erection and refurbishment of cable racks;
- Erection of lighting and socket system;
- Manufacturing, supply and erection of switchboards: power distribution switchboards, direct current and local control switchboards;
- Control tests and commissioning of electrical equipment.
Reconstruction and enlargement of 110/20 kV Substation Kavarna
Contactor: Efacec Engenharia E Sistemas
Project concerns reconstruction and enlargement of 110 kV Switchyard and 20 kV Indoor Switchgear of Substation Kavarna situated on the land of Kavarna town, Dobrich Region.
The following tasks are subject to implementation:
- Enlargement of 110 kV Switchyard:
- erection of concrete foundations for power transformers, erection of portals and tables for installation of electrical equipment;
- erection of cable trays and foundations for control panels;
- erection of steel structures – portals and tables for installation of electrical equipment;
- installation of 110/20kV power transformer;
- substitution of electrical equipment: circuit breakers, disconnectors, current transformers, voltage transformers, surge arresters, control panels, storage battery, rectifier;
- installation and connection of busbar system;
- laying and connection of power and control cables;
- installation of RTU system;
- erection of grounding installation and lightning-protection installation;
- erection of lighting installation and video-surveillance installation;
- construction of local roads and approaches;
- erection of a fence;
- vertical planning.
- Installation of new AC/DC panels
- Installation of new relay/control panels
- Enlargement of 20 kV Indoor Switchgear building:
- construction works;
- erection of grounding installation and lightning-protection installation;
- vertical planning;
- installation of distribution switchgears
- Control tests and commissioning of all the equipment installed.
Disassembly, design, installation and commissioning of electrical and C & I equipment in Coal Handling Plant at Enel Maritsa East 3 TPP
Contractor: Enel Maritsa East 3 AD
The order is contracted within the rehabilitation programme of Enel Maritsa East 3 TPP, including delivery and installation of instrumentation for erection of automation control system in the Coal Handling Plant of the TPP.
Activities:
- Supply and installation of level control sensors for hoppers, pressure sensors, velocity rellay, limit switches, local control panels and other C & I equipment.
Design, erection and commissioning of C&I and electrical equipment in Coal Handling Plant, Enel Maritsa East 3 TPP
Contractor: Enel maritsa East 3 AD
In December 2007 having won a competition for the public order, ACM was awarded an agreement for Refurbishment of Coal Handling Plant at Enel Maritsa East 3 TPP. The order includes electrical works and C&I works:
- Replacement of 6,3 êV Switchgear, supply and erection of electrical equipment;
- Replacement of 0,4 êV Switchgear;
- Replacement of MV transformers;
- Construction of grounding installation and connection of erected equipment to it;
- Laying and connection of cables 6,3 kV and 0,4 kV;
- Rehabilitation of the available cable trays and erection of new ones;
- Erection of safety system for belt conveyors with emergency ropes;
- Supply, erection and wiring of speed controller and deviation controller of belt conveyor and ultrasonic sensors for product level control.