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en.wikipedia.org/wiki/Duty_cycle

A duty cycle or power cycle is the fraction of one period in which a signal or system is active. Duty cycle is commonly expressed as a percentage or a ratio. A period is the time it takes for a signal to complete an on-and-off cycle. As a formula, a duty cycle (%) may be expressed as: = × %

www.zena.net/htdocs/FAQ/dutycycle.shtml

What does the term "duty cycle" mean? Duty cycle is a welding equipment specification which defines the number of minutes, within a 10 minute period, during which a given welder can safely produce a particular welding current.. For example, a 150 amp. welder with a 30% duty cycle must be "rested" for at least 7 minutes after 3 minutes of continuous welding.

whatis.techtarget.com/definition/duty-cycle

Duty cycle is the proportion of time during which a component, device, or system is operated. The duty cycle can be expressed as a ratio or as a percentage. Suppose a disk drive operates for 1 second, then is shut off for 99 seconds, then is run for 1 second again, and so on.

forum.millerwelds.com/forum/welding-projects/12576-what-is-duty-cycle-of...

duty cycle is based on a 10 minuit cycle. so if its at 40% duty cycle at 260 amps, then you can weld for 4 minuets strait then cool for 6 .keep in mind thats full on trigger pulled for 4 minuets, not start, stop move and start again in the 4 minuets. so take into account setup and moving from one weld to another as cooling time. it tends to stretch out the duty cycle.

www.oscium.com/sites/default/files/wipry-combo/Final,%20Tutorial%20on%20Pulse...

Duty Cycle describes the “On Time” for a pulsed signal. We can report duty cycle in units of time, but usually as a percentage. Like Pulse Width and Repetition Frequency, a signal’s duty cycle is a calculated value; not directly measured. To calculate a signal’s duty cycle, we need to know the signal’s pulse width and repetition ...

www.thefabricator.com/.../cuttingweldprep/understanding-plasma-cutting-duty-cycle

Often plasma cutting duty cycle is merely an afterthought. When you place your focus on a system’s power level, performance capability, and price when making purchasing decisions, you tend to overlook its duty cycle and how it was determined. Though duty cycle is not all that complicated, a ...

www.assuredautomotivecompany.com/compressor-duty-cycle.html

Duty Cycle Explained. This is a reference page to what "duty cycle" refers to when speaking about air compressors. Duty cycle refers to the amount of time a compressor can be operated in a given period, at 100 PSI, and at a standard temperature of 72 degrees F. Duty cycle is commonly expressed in percentage format as: Compressor on time DIVIDED BY (on time + on time) = Duty Cycle Percent...

weldinganswers.com/understanding-duty-cycle

Duty Cycle is the number of minutes out of a 10-minute period a welder can operate continuosly. According the spec sheet for the Millermatic 211 as published on Miller Electric’s site this machine has a duty cycle of 30% at a rated output of 150A on 230VAC input power.