ABSTRACT
The main objective of the project is to design an HYBRID electrical services for a 5 (five) storey Administrative blocks, Laboratories and Lecture theatre. Due to the location, the main source of electrical power is the mains national grid power which by findings not reliable and hence an alternative source of power (Solar inverter system) supply is introduce for backup and reliability purpose. In order to achieve the main objective and to specify the ratings of solar inverter, size and number of back-up generators to be employed, the final circuits consisting of lighting, internet facilities and power sockets is designed first. The lighting design is done using the lumen method which takes into consideration the size and use of the room being lit. Power points layout design is done by considering the needs of the final user of the premises in every section. In this Project work, for establishing a modern electrical design and installation of equipment of high rise building two new appliances have been proposed. The first one is usage of Busbar Trunking (BBT) system for main distribution line instead of conventional wiring system to provide much higher protection, easier installation process, reduce cost, time, space, and maintenance management. The second one is continuous fault analysis and monitoring using SICAM Q100 device which is the updated process to make sure more safety for monitoring power quality to acquire, visualize, analyze, and transmit measured electrical variables such as AC current, AC voltage, frequency, power, harmonics, etc. The measured variables can be output to a computer or control center via communication interfaces or shown on a display. Total electrical drawing has been drawn in AutoCAD. An entire substation for the high-rise building has been designed according calculated to load of the building. For protection of the building proper rated MCB and MCCB have been installed according to the load. This has enabled the system to switch off only the breaker closest to the fault without disruption of supply to other areas. Finally, lightning protection is done to safeguard against the effects of a lightning stroke. With this system the building will have safe, reliable and expandable power supply. vii To avoid fire hazard, fire detection and alarm system with immediate water supply have been installed in this building. Entire electrical connection has been designed based on IEEE and NEC Code
