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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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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PLC Scan Cycle | PLC Programming Software

As there are many PLC manufacturers, there are as many software programming packages. Each manufacturer developed their own software with no set standards other than it must follow relay ladder logic so that technicians could easily be trained without having to be software engineers. Two terms describe PLC software; open …

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Motor Control Panel Components | Low Voltage Components

Figure 2 - Distribution Block

Low Voltage Components Low voltage components make up the other half of the motor controls panel. Voltage is reduced and distributed to different components to achieve the desired function. This is a twofold purpose: safety and power consumption. By reducing the voltage, technicians that troubleshoot a live panel are less …

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Virtualization in Cloud Computing | Virtualization Types

Introduction Virtualization provides the bridge between how information technology services are delivered in the current data center environment to how those same services and applications are delivered in a cloud environment. Understanding virtualization is critical to understanding cloud computing. Cloud computing is the model for enabling on-demand network access to …

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