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Shaft Currents: Learn About the Causes and Cures

March 2020 WebinarThis training session explains what shaft currents are, what causes them, and differentiates between the two common causes. It also discusses and compares methods to mitigate shaft currents and explains why the different causes of shaft currents require different solutions.

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New in 2020! EASA members have access to all public webinars and the their recordings for FREE thanks to our webinar sponsors. EXPLORE UPCOMING TRAINING

New Technical Support Specialist Joins EASA Staff

Matthew Conville, P.E.

EASA is very pleased to announce that Matthew Conville, P.E., has joined EASA’s Staff as a Technical Support Specialist.

“With his strong background in rotating equipment, what powers them, how they need to be controlled, and his experience and willingness to teach, Matthew is an excellent addition to our team,” said President & CEO Linda Raynes, CAE.

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New Version of Popular Training Manual Receives IEC Focus

Principles of Medium & Large AC MotorsA new version of the Principles of Medium & Large AC Motors manual is now available to address applicable IEC standards and practices. It was developed by industry experts in Europe along with EASA’s engineering team. Members can now choose the book that best fits the body of motors that they most frequently service: NEMA or IEC.

This valuable instructional/resource manual is available for purchase in both printed and downloadable versions.

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New Member Benefit: Discounted Electronic Payment Processing Service

EASA is pleased to be able to offer a new benefit to members! Service First Processing is a leading payment processing provider helping merchants navigate the constant changes in the bank card industry while keeping costs low, ensuring data security, and enhancing efficiency by making it simple to run transactions. SFP offers EASA members SFP credit card and ACH/check processing services at a special discount off its regular rates.

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Tech Tip: Increasing Load Capacity of a DC Motor

Torque produced by a DC motor is proportional to the field flux x armature current x k (a constant). When a customer desires more HP, approximately a 15 percent increase in torque can be accomplished by increasing the field current by the desired increase. In other words, a 10 percent increase in field current should result in 10 percent more torque without increasing the armature current. Field temperature should be monitored when this is done.

Armature current can also be increased, as long as the additional heat can be dissipated. Increasing the blower size is one way to accomplish this.

Safety Tip: Proper Care of Cylinders

Store, transport, and use cylinders in an upright position. In storage, secure cylinders with a chain or bar to prevent them from toppling. See that protection caps are in place when cylinders are not in use or are being moved. (Use of upright burning buggies is recommended.)

Cylinders containing different gases should be physically separated by 20 feet or by fire-resistive dividers.

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