General Requirements 1-5 . Covers bare conductors, rigid and strain bus design. CONTACT. Substations can be of various capacities, voltages, configurations and types depending on what is the application for which the substation is being designed. The same concept applies to touch potential. This manual is intended as a guide for electrical engineers and designers (hereafter referred as the A/E) for the planning and design of the electrical power distribution and related systems The popular battery chemistry in the industry is lead-sulphuric acid. Other design inputs … Specify standard sound transformer if the noise generated is acceptable. The height and angle of LED head that provides the required foot-candles of light intensity are calculated. – Motors which operate high voltage switch and ones that charge the spring inside the circuit breaker. 1 pa electrical technical documents. – Conduit installation details drawing, ĐC: Lầu 2 Tòa Nhà I2 Building, Số 236/26 Điện Biên Phủ, Phường 17, Quận Bình Thạnh, Thành phố Hồ Chí Minh, Electrical – Substation Design Calculations, AC system – auxiliary power transformer calculations, “Energy saving is future generation investment”, Civil / Structural – Substation Design Calculations. Soil conditions play a significant role in the design of foundations. Volume I, Design Parameters. Therefore a probability study is conducted to determine the likelihood of a lightning strike on the unprotected equipment. Geotechnical investigation reveals information on soil conditions, underground obstructions or hazards, seismic conditions, topography, etc. Author credit: Sanity checks on the civil / structural section provided by Nauman Khan – Structural Engineer, PE. In a thermal power plant i saw a substation of 220Kv and in the other one 132Kv. Install adequate cross-bracing or vibration dampers to prevent this condition. Design calculations establish minimum guidelines and requirements for generating electrical calculations on projects. Results are incorporated in the following drawings: 1.1 PURPOSE . A lightning strike occasionally carries greater than 1 million-volts, 100 kilo-amps, and 20 giga-joules of energy. – Motors which operate high voltage switch and ones that charge the spring inside the circuit breaker. Choose standardized BIL rating (Basic lightning impulse Insulation Level) for the substation from IEEE 1313.1 standard. Covers the general design considerations, documents and drawings related to designing a substation. Earthing and Bonding 3. How much money is spent on building a new substation is largely influenced by the location. If 1-ohm is still in circulation on your documentation then this section applies to you.. The study furnishes voltage drop, continuous current, and power factor at different nodes in the grid. Specify the quantity of wires that can be pulled. Some form of protection is required to prevent them from going up in smoke. When this surge is buried into the earth, it needs a path to dissipate. Covers bare conductors, rigid and strain bus design. Figure 4: Protective relays inside the control building. Determine wire size (1/0AWG or #2 gauge or #6 gauge etc.) A lightning strike on tall power transmission structures is inevitable. Between the generating station and consumer, electric power may flow through several substations at different voltage levels. A setup without adequate bus support and under-rated bus support insulators – will collapse. 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