Circuit Breaker Types and Their Uses

MEDIUM-VOLTAGE POWER CIRCUIT BREAKERS

Low-voltage circuit breakers are typically used in applications such as lighting circuits, motor control centers, feeder circuits and any application in which electrical power needs to be turned on and off and overcurrent protection is required. Medium-voltage circuit breakers are used in many of the same types of applications as …

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Transformer Ratios of Single-Phase Transformers

Figure 4. Diagram using standard electrical symbols to show the AC supply, a single-phase transformer, and its connected load in an electrical schematic

In a given single-phase AC transformer, whether auto, isolation, or current type, there are three principle transformer ratios: the current ratio, the turns ratio, and the voltage ratio. The ratios of both current and voltage are dependent on the turns ratio, which is established at the point of manufacture (by …

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Electric Motor Load

As shown in Figure 1, the installations and uses of electric motors are just as diversified as the many different kinds and horsepower ratings of electric motors. In general, electric motors or electrical utilization equipment that contains motor loads must be provided with a disconnecting means, supply conductors, and some …

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Scientific Notation Rules and Examples

scientific notation

The goal of this module is to provide students with the tools they need to use scientific notation to represent quantities, apply electrical units of measure, convert metric units, and express measured data with the proper number of significant figures. Objective A learner will be able to: Use scientific notation …

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Secure Data Transport in the Cloud

Secure Data Transport in the Cloud

On the Internet, the primary protection mechanism is encryption. Cloud providers use encryption such as Advanced Encryption Standards (AES) and Triple Data Encryption Standards (3DES) to ensure a standard of security in their environments. Encryption is often used with identity management. To avoid exposure to a user’s identity and to …

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Key Technical Considerations for Cloud Deployments

INTRODUCTION In this lesson, different cloud types will be compared to identify which type is best suited to meet an organization’s business needs. Technical details of new and/or previously discussed cloud components and features will also be explained.  Cloud service providers will often adopt technical standards to ensure its customer …

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