Order Now Order Now
Login / SignUp
Order Now

Home Free Essays

>>

All Subjects

>>

Education

>>

FLA AND RLA

FLA AND RLA

Download

FLA and RLA

Derrell Johnson

FLA and RLA

Full load amperage (FLA) is the amount of current (in amperes), which a motor draws from an electrical system when to produce the rated horsepower (output). Run Load Amperage is the current drawn by the motor from the electrical system under normal load conditions (Whitman et al., 2012). When the RLA is almost equal to the full load condition, the RLA is denoted as the FLA (Silberstein, 2012). The run load amperage is considered as full load amperage when the motor is operating loading at rated speed (Brittian, 2012). For some of the motors, the RLA is almost the same as the FLA. From the datasheet or data plate of the motor, the value of RLA and FLA is noted. It is then multiplied by the power factor of 1.73 (in case of 3 phase) and voltage. The result is approximate value of electrical power used in watts. The differences in FLA and RLA is of measuring method. For the value of FLA, the rating of the motor is considered while load of the system is considered for the RLA value. FLA is the amount of current that is drawn by a motor when running on full load, and the full load torque and horsepower are attained. While depending upon model and other conditions, RLA is usually about twenty or thirty percent lower than FLA.

For calculation of the Full load amperage value, different formulas can be used depending upon several phases, and if the value of power is in Horsepower or Kilowatt.

In case of single-phase AC motor:

FLA (Amperes) = P (in kW) × 1000 V × cos ϕ = P (in HP) × 746 V × cos ϕ×η

In case of three-phase AC motor:

FLA (Amperes) = P (in kW) × 1000 V ×1.732× cos ϕ = P (in kW) × 746 V ×1.732× cos ϕ×η

To calculate the RLA value the maximum continuous current value is divided by the 1.56.

References

ADDIN ZOTERO_BIBL {"uncited":[],"omitted":[],"custom":[]} CSL_BIBLIOGRAPHY Brittian, L. W. (2012). Audel Electrical Trades Pocket Manual. John Wiley & Sons.

Silberstein, E. (2012). Residential Construction Academy HVAC. Cengage Learning.

Whitman, B., Johnson, B., Tomczyk, J., & Silberstein, E. (2012). Refrigeration and Air Conditioning Technology. Cengage Learning.

More Subjects

Education

(5614)

English

(2294)

Business And Management

(1760)

Healthcare And Nursing

(1684)

Psychology

(929)

History And Anthropology

(743)

Sociology

(572)

IT

(446)

Education

(429)

Finance, Accounting And Banking

(419)

Philosophy

(347)

Political Science

(310)

Law And International Law

(308)

HRM

(300)

Economics

(288)

Biology And Life Sciences

(267)

Literature

(249)

Marketing And PR

(238)

Culture

(140)

Environmental Science

(109)

Geography

(92)

Statistics

(64)

Maths

(53)

International Relations

(44)

Physics

(30)

Chemistry

(25)

Capstone

(8)

Project Management

(8)

Reflective Thinking

(7)

Critical Review

(3)

Linguistics

(3)

Critical Appraisal

(2)

BUS 2090

(2)

English 12 Drama

(1)

Business Information Technology

(1)

Operational Plan

(1)

Corporate Finance

(1)

L2 Photography And Design

(1)

Food Nutrition

(1)

Leadership

(1)

Nursing

(1)

MBA

(1)

Social Enterprise Project

(1)

Government

(1)

Our tools

Essay typer Grammar Checker Plagiarism Checker Citation Generator

Useful Links

Free Essays About Blog

Contact me

info@freeessaywriter.net

If you have any queries please write to us

Join our mailing list

Invalid Email Address!
Thank you for joining our mailing list

Please note that some of the content on our website is generated using AI and it is thoroughly reviewed and verified by our team of experienced editors. The essays and papers we provide are intended for learning purposes only and should not be submitted as original work.

@ All Rights Reserved 2023 info@freeessaywriter.net

Privacy Policy Terms of Service Use Contact
Back to top