Electrical Tenders

Tender Id: BSL_Elect_TRD_42_2024-BHUSAWAL DIVISION-ELECTRICAL/CENTRAL RLY | Work Of Provision Of Earthing And Bonding To Fencing/boundary Wall Provided Along The Track In Bhusawal Division.

Tender Id: BSL_ELECT_TRD_08_2025-BHUSAWAL DIVISION-ELECTRICAL/CENTRAL RLY | (1)removal Of Ohe Of Examination Line No. 1 & 2 In Up Marshalling Yard At 425201. (2)trd Work For Installation And Commissioning

Tender Id: BSL_Elect_TRD_09_2025-BHUSAWAL DIVISION-ELECTRICAL/CENTRAL RLY | Trimming And Cutting Of Tree Branches Infringing Safety Clearances From Ohe In Igp-csn Section Of Bhusawal Division.

Tender Id: RPECRDNRTRLSEBRETENDER-GELF-ELECTRICAL/EAST CENTRAL RLY | Design, Supply, Erection, Testing & Commissioning Of 132kv D/c 3-phase Transmission Line From Gss Sonenagar (old) To Railway Tss Sonenagar And

Tender Id: RVNLElect2024M1-2-DELHI-CO-ELECTRICAL/RVNL | Running Contract For Procurement Of 8 Mva Auto Transformers

Tender Id: BSL_Elect_TRD_11_2025-BHUSAWAL DIVISION-ELECTRICAL/CENTRAL RLY | Trimming And Cutting Of Tree Branches Infringing Safety Clearances

Tender Id: RPDNRTRLSEB-GELF-ELECTRICAL/EAST CENTRAL RLY | Design, Supply, Erection, Testing & Commissioning Of 132kv D/c 3-phase Transmission Line From Gss Sonenagar

Tender Id: BSL_Elect_TRD_43_2024-BHUSAWAL DIVISION-ELECTRICAL/CENTRAL RLY | Repairs To Tower Wagon No. Ptl-12881 In Bhusaval Division.

Tender Id: RPTRLNBGRETENDER-GELF-ELECTRICAL/EAST CENTRAL RLY | Design, Supply, Erection, Testing & Commissioning Of 132kv D/c 3-phase Transmission Line From Gss Nabinagar To Railway Tss Nabinagar And Associated 02 Nos. 132kv Line

Details: The subject of the performance of the public contract is the installation of alternative cooling units in the Hotel Thermal in Karlovy Vary. Contents: Currently, the object is cooled using two Trane central cooling units with an output of 720 Kw connected on the secondary side to the so-called Open Cooling Towers, and therefore can only be in operation in the summer and transitional period (approx. 8 – 9 months per year). In these units, there is only a minimal re-use of waste heat in the form of pre-heating TV with an output of about 20 Kw. In addition, the cooling towers are disconnected and drained for the majority of the main heating season (cooling is not in operation). The content of the performance of the order is the reconstruction of the cooling circuit, which will subsequently enable year-round cooling operation and, in particular, on a significant scale, will enable the use of the waste heat obtained in this way. As part of the contract, two heat pumps with a total cooling capacity of 162 Kw will be installed at temperature drops of 8/16°c on the primary side, respectively 60/55°c on the secondary side. This solution is expandable in the future, according to the needs of the operation. On the primary side, this solution will enable year-round cooling operation and at the same time significantly reduce the costly operation of open cooling towers to the expected Max. 3 months of the year. For Cooling Towers That Do Not Enable Heat Recovery, Or Only Enable Minimally, Moreover, Only Surplus Power Above The 162 Kw Level Will Go. On the secondary side, this solution allows obtaining a stable source of heat for the needs of the operation with a power of 60 – 162 Kw. This heat will be used primarily for the production of TVs for hotel and restaurant operations, but it can also be used in the TV system. This will lead to significant savings in the form of a reduced need to purchase heat from Czt. On the cooling side, the cold water will be accumulated in a tank with a volume of 1000 L. The cooling water will then be distributed through the plate heat exchanger to the cooling branch of the Casino (fcu and Ahu unit), the uncollected part of the cold will then be used in the existing distributor and cold collector for the hotel. In the event of a shutdown of the proposed alternative cooling, it will be possible for the casino to supply cooling from the existing cooling distributor and collector (and thus also use Trane's central cooling units). Both Main and Alternate Cooling Can Be Operated Simultaneously. Secondary Side Incl. The tank is a separate pressure unit, which is equipped with its own safety device, Max. Pressure Is Considered 5 Bar. This Pressure Part Will Be Filled With 20% Antifreeze. A 1000 LZ Storage Tank Will Also Be Installed On The Secondary Side Due To The Hydraulic Separation Of The Tč Circuit From The Consumers. The following groups of appliances can then be supplied with heat from the storage tank: 1) Crittall - The use of heat for Crittall is primarily considered, since the temperature drop is lower than for other appliances, and in this way the highest efficiency of the equipment will be achieved; With respect to other pressure ratios, the system is separated by a plate heat exchanger 2) Hotel and cinema appliances, especially in the transition period; With regard to other pressure ratios, the system is separated by a plate heat exchanger 3) TV heating - It will be used especially in the period when there is no consumption in other appliances Tu A Vzt; Due to the required high output temperature, the TV heating will be the least effective, however, in the non-heating season, this will be the only appliance that can be used. As part of the TV heating, the existing tank will be heated with the heat from the heat pumps, which is already connected to the return pipe to the heat exchanger via the distribution three-way valve on one side, and will then be newly connected to charging with the heat pump on the other side. Furthermore, a currently unused storage tank with a volume of 10 m3 will be newly used, which will be connected in series with the already connected storage tank. On the heating branches, the connection is made in such a way that the return water will be heated, proceeding to the hot water exchangers, with the fact that the hot water exchangers will be used as the second stage. The Mar system evaluates where to most advantageously distribute the heat with regard to the lowest possible temperature required. The secondary side forms one pressure unit with the secondary side of the Hv/heating water exchanger for Tv, the operating pressure is approx. 4 Bar. The security device is existing and is located in the engine room of Zzt. The need to block the heat at a time when it will not be possible to use all the heat in the appliances, but the need for cold will continue, is considered through the unit from the exchanger for the cinema. Primarily, it is expected to be thwarted through the heat exchanger for the parking lot (approx. 400 Kw), or through the VZT units for the halls and halls, which would thus be tempered even in times when this is not needed. Tampering Is Assumed Only Exceptionally. Part of the project is the connection of the Ahu unit for the casino from the heating and cooling water side, and the introduction of heat and cold connections to the casino premises. The installation of alternative cooling units is required mainly for the following reasons: - Year-round cooling of the newly established casino (requirement for installed power is 60 Kw + cooling of ventilation air) - Cooling of rooms where even in the transitional and winter months there is sunlight, and where it is possible to achieve Comfort Temperatures The Need to Have Cooling Water Available Even When the Main Cooling Unit is Down. The heat from the secondary side of the cooling units will be used for heating the TV and heating, exceptionally it will be wasted in the air conditioning units. In times of great need for cooling, the original main cooling units will be in operation, while the Superior Control System will evaluate which resource will be operationally optimal. The Mar system and the connection of the electrical installation for the Tč are not part of the project, due to the continuity with the existing systems, this will be provided by the client.