Abstract
Integration of renewable energy into power grid systems by the use of microgrid are becoming attractive to supply electricity to remote areas in all aspects like reliability, sustainability, and environmental concerns; especially for communities living far in areas where grid extension is difficult so generation of renewable energy resources like solar energy to provide reliable power supply with improved system efficiency and significant cost reduction is best way. This paper reports the ETAP model of a conventional grid connected to Microgrid system of an educational Institute. The purpose of this work is to study the prototype model which is been designed according to some standard electrical conditions. This paper also provides the readers the understanding about the selection appropriate protective equipments, proper cable sizing and electrical parameters which results in a energy efficient design. In this paper we have considered an educational Institute which is connected to 33/0.4 kV conventional grid supply and to this system a 50 kW microgrid is connected.
Highlights
All the electrical network installation must compile some standard design parameters
Some of the parameters which has to be taken into account while designing the network are operating voltage levels, symmetrical load distribution, maximum system capacity, protection against fault such as short circuit, arc flash analysis and relay coordination analysis etc
In an electrical network different electrical devices are been integrated to carry out specific operations, in addition to these devices, cables, switch gears,protective equipments are required which requires electrical energy to perform the intended function
Summary
All the electrical network installation must compile some standard design parameters. Bus 4 is connected to the different load centers through respective low voltage circuit breaker of which have a load capacity of 367 kW. Bus 5 is connected to the different load centers through respective low voltage circuit breakers having a load capacity of 543 kW. From the above arrangement it can be noted that the flow of power is from the source side to the distribution side passing through required protective equipments which are connected to protect the system from faulty condition For this reason many sensing and protective equipments are both connected in series and parallel to the network before the load. Second thing which is taken into account while designing a perfect electrical network is the electrical fire safety precautions that should be provided against electrocution For this reason we have to follow certain guidelines and standard provided by government agencies and testing agencies. In the design, planning and execution the equipments, materials, devices, procedure should follow the standard conditions
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