Purpose of Grounding the Utility Power Distribution

fig 1 The static ground wire in the 3-phase electrical utility power transmission-distribution grid

The transfer of electrical power within the electrical-utility power transmission/distribution grid is normally at high voltage (high tension) to reduce the transmission losses (line losses) along the miles of cable that must be installed between the generating plants and the many cities, commercial and industrial sites, and suburban, as well …

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Reversing Three Phase Induction Motors

Reversing Three Phase Induction Motors

Three phase induction Motor rotation can be reversed by changing any two of the three lines feeding power to the motor. It is common standard practice to switch line 1 and line 3. When the motor needs to be run in a clockwise and a counterclockwise rotation, a reverse starter …

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ARCGIS Model Builder Tutorial

Figure 1 Locate the Catalog tab in ArcMap

ArcGIS Introduction This ArcGIS Toolbox provides many tools to manipulate and analyze GIS data. Geoprocessing frequently uses the output of one tool as the input for a second tool which creates a set of tools that are chained together. ArcGIS provides Model Builder, a graphical user interface (GUI) which can …

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Cloud Computing Security: Issues and Challenges

Cloud Issues

Cloud Computing Security Issues Just as many companies and organizations are attentive and responsive to security concerns within their private networks, there are also security concerns when moving to a cloud environment. One of the biggest security issues that cloud service providers must address is access. The question facing service …

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7 Layers of OSI Model and Their Functions

osi model

OSI Model The structure of the Internet is modeled on the Open Systems Interconnection (OSI) model. The OSI model is a framework used for all communications in the cloud. The OSI model represents the interfaces and protocols used to communicate between devices. Every network device must adhere to the rules …

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