Reading a motor curve
WebEvery circuit breaker has a characteristic curve that reports the manner in which it trips. As this curve is reporting the amount of current vs time, it is a... Websimple motor. When a permanent magnet is positioned around a loop of wire that is hooked up to a D.C. power source, we have the basics of a D.C. motor. In order to make the loop …
Reading a motor curve
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WebJun 1, 2024 · Draw a vertical line to the point where it intersects the curve. Then draw a horizontal line to the left side of the graph and find the time to trip. For example, in this illustration a circuit breaker will trip when current … WebJan 28, 2014 · Time Current Curves Item Identification. The TCC diagram shown in Figure 1 (below) plots the interrupting response time of a current interrupting device versus time. Current is shown on the horizontal axis …
WebMost electric motors are designed to run at 50% to 100% of rated load. Maximum efficiency is usually near 75% of rated load. Thus, a 10-horsepower (hp) motor has an acceptable load range of 5 to 10 hp; peak efficiency is at 7.5 hp. A motor ’s efficiency tends to decrease dramatically below about 50% load. WebElectrical Motor Power, Velocity and Torque Equations. Torque in Imperial units can be calculated as. T inlb = P hp 63025 / n (1) where . T inlb = torque (in lb f) P hp = horsepower delivered by the electric motor (hp) n = …
WebReading BHp Curve. 0 0.5 1 1.5 2 2.5 3 3.5 0 5 10 15 20 25 30 35 40 45 CFM x 100 Pressure 700 RPM. 350 RPM. Operating Point. at 700 RP. M Operating Point. at 350 RP. M. Varying Operating Points. Large change in Ps . Small change in CFM. Small change in Ps . Large change in CFM. CFM. Ps. Selecting Point of Operation. Ps. Operating Point. Optimum WebDec 9, 2024 · Reading a Centrifugal Pump Curve Centrifugal Pump curves present eight critical factors that are crucial in selecting the right pump for a specific operating condition. These factors include Flow, Head, Efficiency, Impeller Trim Diameter, NPSHR, Power, MCSF (Minimum Continuous Stable Flow), and RPM.
WebJan 15, 2024 · In Fig. 2, a positive displacement pump curve shows the influence of viscosity on slip with a correction chart. With changes in viscosity and pressure, slip correction …
A motor / gear motor performance curve conveys five specific parameters; speed, torque, current draw, power and efficiency. The overall performance data will illustrate the optimal conditions the motor should operate at as well as its limitations. This information can be used to determine if the motor will be … See more Now that we have covered the basics, you can begin to understand what the lines and numbers represent. The performance curve below is a more detailed performance representation for a typical dc gear motor. We will … See more Electric motorshave two types of usage which are defined by torque capacity in which they are operating at. These ranges are meant to depict the overall safe operating limits of the … See more We hope that this explanation has helped you get more familiar with motor and gear motor performance curves. Not all vendors or manufacturers will offer all of the motor data so if a certain parameter is missing, please … See more iphone x max glass housing repairWebNov 7, 2013 · The “hot” motor curve demonstrates how much the performance can change when operating the motor at an elevated temperature. The graph illustrates changes in … iphone x max camera repairWebGenerally speaking, curves which indicate RPM to be between 3400 and 3600 RPM are used for all two pole (3600 RPM nominal speed) motors applications. Return to Table of Contents Return to Top of Lesson Two Flow The pump’s flow range is shown along the bottom of the performance curve. iphone x max boost mobileWebTo understand centrifugal pump performance, we need to understand the pump curve. This video explains how to read these charts so we can understand how to assess or improve … orange spb assuranceWebIn the top right hand corner of the curve it tells use the speed of the motor and frequency that the pump will be operated at. It is important that this information is checked, as the frequency affects the speed at which a motor will run (see below table) and differing countries use different frequencies .For example, in the UK 50Hz is used yet ... iphone x max charge wattageWebWhen we read the characteristic curves of a brushed DC motor, it is assumed that we need a certain torque to move a load. For any given torque, these curves show the corresponding … iphone x max chargerWebSo let’s convert that RPM to RPS (seconds) by multiplying it with the circumference (which has a radius/length of 1). Then convert minutes to seconds by dividing by 60. Voila, we now have 0.10472 RPS. Now we have the ability to convert that 550 foot-pounds per second into a common value. Divide our 550 by the 0.10472 RPS to get…. 5252. orange sparkly crystal