Category: Energy Efficiency

Why you must use Variable Speed Drives in pumping applications!

Variable speed drives in pumping applications Pumping applications represent a significant opportunity for applying variable speed drives (VSDs) in new, as well as retrofit installations. The majority of pumping applications need to be controlled. It is unlikely that a pump will run continuously at a maximum speed.     Many analyses show that energy consumption is …

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The essentials of electrical distribution systems every engineer should know.

Transferring AC/DC electrical power Electrical distribution systems are an essential part of the electrical power system. In order to transfer electrical power from an alternating current (AC) or a direct current (DC) source to the place where it will be used, some type of distribution network must be utilized. The method used to distribute power …

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Top six solutions to achieve a high level of energy efficiency in buildings

MAGELIS SMART industrial touchscreen display by Schneider Electric Efficiently consumed energy Energy efficiency involves providing a given level of performance, cost, quality, availability, and comfort at a minimal level of energy usage throughout the lifecycle of a given asset or process. It includes reducing energy consumption, optimizing energy costs and improving installation reliability. Power measurement …

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The 10 Essential Secrets to Variable Speed Drive Optimisation

  Understand Your Installed Base An initial on site assessment should be carried out by a qualified Drive Service Engineer, they should log the drive location, part numbers, specification and maintenance status and criticality to the process or application for the future maintenance planning   Preventative Maintenance Schedule As the level of criticality of your …

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How do I select induction motors for industrial applications? (Part 3)

Design Considerations (cont.) Different Rotor Classes// The different rotor class, i.e. KL7, KL10, KL13, KL16, KLp, etc. are available in case of the motor to fulfil the functional torque requirements of the driven equipment. The rotor classes indicate against what quantum of the load torque the motor would be able to start easily. The motor …

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How do I select induction motors for industrial applications? (Part 2)

Design Considerations (cont.) Motor Efficiency// The new IEC 60034-30 motor efficiency standard could have major energy-saving impact for industrial motors worldwide. Though standard motors are now available with a better efficiency, this factor (motor efficency) requires due attention when making the selection of the motor for a specific application in view of substantial quantum of …

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What is the principle of power factor correction and protection of capacitors?

Power factor correction principle// Loads such as induction motors draw significant reactive power from the supply system, and a poor overall power factor may result. The flow of reactive power increases the voltage-drops through series reactances such as transformers and reactors, it uses up some of the current carrying capacity of power system plant and …

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What are the most common flow control methods of pumps?

Pump as a part of the process // When in use, the pumps are always part of a pumping system. A pumping system is usually a network of pipes, tanks, valves and other system parts. The receiver is usually at a higher geographic level than the supply of the system. These parts can be also …

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How do capacitors improve the power factor and how do I calculate them?

How to improve the power factor? It’s quite simple. By installing capacitors or capacitor banks. Improving the power factor of an electrical installation consists of giving it the means to “produce” a certain proportion of the reactive energy it consumes itself. There are various different systems for producing reactive energy, including in particular asynchronous compensators …

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How do standby generators work and how do I dimension them?

Standby generators// Standby generators (Figure 1 below) are used in order to provide consumers in the system entitled to standby service in the event of breakdown or shutdown of the normal power supply. They consist of the generator, the flywheel and the motor. For the dimensioning of the generator power to supply a large number …

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