Zakład Gospodarki Komunalnej Sp. z o.o. in Cieszyn

‘Refurbishment of the power supply system for the 400 V main switchgear and visualisation of this equipment in the SCADA system at the wastewater treatment plant at 27 Motokrosowa Street in Cieszyn’ — Stage II

The scope of the contract included:

• Preparation of the electrical, control and lighting installation diagrams for the 400 V main switchgear building, which contains a transformer station with two TAOA 1000, 15/0.4 kV transformers rated at 1,000 kVA and supplied via two busbar bridges, serving the entire wastewater treatment plant.
• Refurbishment of the electrical cabinets and installed equipment, including dismantling of the old switchboards and installation of new switchboards for Sections 1 and 2. The switchboards were equipped with two 1,600 A main disconnectors, a 1,600 A bus-coupler circuit breaker between the sections, and the equipment required for correct switchgear operation, together with wiring, busbar bridges and an automatic transfer switching system.
• Installation of electrical lighting, 230 V socket-outlet circuits and emergency lighting throughout the 400 V main switchgear building.
• Construction of a fire protection system.
• Implementation of a complete equipment control and 400 V main switchgear visualisation system based on PLCs, an operator panel and M-Bus digital communication.
• Commissioning of the SCADA system and configuration of the IT network devices operating over a fibre-optic ring network.
• User training in software operation and preparation of as-built documentation.
• Delivery of the source code together with the transfer of the proprietary rights to the software developed under the contract.