Description
MV LEARNING Electrical System Designing Made Simple with CD by Rajiv Shankar
While designing an electrical substation, engineers face several questions: What is the load the substation has to cater for? What can be the future increases in the load? What are the voltages at which power will be received and fed? Will the load be industrial or domestic? How can one decide if the substation will be indoor-type, or located outdoors? Have the environmental factors been taken into account? What are the safety requirements for different types of substation?Electrical System Designing Made Simple answers all these questions and comprehensively covers all the aspects of designing an electrical substation. The subjects include:General aspects of substation designingTransformersPower control centreHT and LT cableBus-ductCapacitor bankGroundingBatteryDiesel generating setThe Software: The user-friendly software can perform all the basic calculations required while designing a substation. It helps the user prepare the specifications which are to be attached with a tender document. The 'Library' feature lets the user store details of various electrical equipments from different manufacturers. Because there are in-built formulas, no calculation needs to be done on paper, and all the calculations can be printed. General Aspects of Electrical Substation Designing * Introduction * Different Types of Loads * Estimation of Load * Choice of Voltage * Safety, Reliability and Flexibility in design * Space Requirement and Choice of Indoor/Outdoor Substation * Environmental Conditions * Area Classification * Conclusion * Software * Transformer * Introduction * Selection of transformer * Comparison between dry type and oil filled transformer * Specifications * Installation * Safety requirements * Commissioning * Maintenance * Other important aspects of transformer * Evaluation of transformer losses * Conclusion * Software * Power Control Centre * Introduction * Bus-Bar * Switching devices * HT circuit breaker * Comparison between different types of circuit breakers * Specifications * Low voltage protective devices * General requirements * Protection and measuring schemes * Installation * Testing * Future trends in power control center and motor control centre * Conclusion * Software * HT and LT Cables * Introduction * Construction * Specifications * Selection * Installation * Economics in selection of cable * Conclusion * Software * Bus-duct * Introduction * Selection * Ambient conditions * Material * Rating * Enclosure * Calculation of Bus Bar size * De-rating due to temperature rise * De-rating due to enclosure * De-rating due to altitude * Specifications * Conclusion * Software * Capacitor Bank * Introduction * Reactive power * Power Factor * Remedy of poor power factor * Location of capacitor bank * Economics of power factor improvement * Conclusion * Software * Grounding * Introduction * Types of system grounding * Solid grounding * Resistance grounding * Reactance grounding * Transformer grounding * System grounding points * Calculation of ground fault current * Equipment grounding * Design of earth electrodes * Plate electrode * Pipe electrode * Strip electrode * Conclusion * Software * Battery Bank and Battery Charger * Introduction * Lead-Acid battery * Nickel Cadmium battery * Selection * Environment * Comparison between wet and sealed low maintenance battery * Sizing of battery * Rate of discharge * Temperature correction * Aging factor * End cell voltage * Comparison between lead-acid and nickel-cadmium battery * Memory effect * Sulfation * Specifications of battery * Battery charger * Specifications of battery charger * Tests * Capacity test * Conclusion * Software * Diesel Generating Set * Introduction * Selection of DG set * Non linear load * Capacitive load * Unbalance load * Motor load * Assessment of load * Location for installation of DG Set * Specifications * Conclusion * Software * References and Bibliography * Indian Standards * Index.