Duty cycle, Mechanical Engineering

Duty cycle

The concept of duty cycle is to be clearly understood before operating any machine. Unlike the arc welding power sources, the resistance welding power sources are designated for 1 minute integrating period. Suppose a machine is rated for 50 % duty cycle, it means that after operating the machine for ½ min. at full load, the machine has to be cooled for the next ½ min. The duty cycle at loads different to the full load can be calculated from the formula.

Duty cycle at Y kVA = (rated kVA / Y kVA) x rated KVA

This formula is applicable straight in the case of under loads but while overloading, we should not overlook the constraint imposed by the maximum capacities of the circuit elements e.g. diodes, contacts, etc., though the machine is going to be overloaded to that extent only for a very brief period allowed by this formula. In effect, this formula takes care of the heating of the winding only.

Posted Date: 9/17/2012 5:21:01 AM | Location : United States







Related Discussions:- Duty cycle, Assignment Help, Ask Question on Duty cycle, Get Answer, Expert's Help, Duty cycle Discussions

Write discussion on Duty cycle
Your posts are moderated
Related Questions
Proof of parallelogram law of forces

how to find view factor for a cylinder to humanbody at a distance?

Improvement Of Existing Airport: The improvements that are usually needed for existing airports fall under the following categories : (a)        Extension of runway to acco

define thormodynamics and its laws


how can analysis the force analysis of spur gear subjected to a force of 1818.65 newton on the shaft of the gear?

Dynamic Magnifier: This is function of frequency ratio. Forced Vibration: While the system is continuously excited by an external force or internally produced force, the v

Cranes are used to move materials vertically and laterally in ain area of limited length. They may he operated hydraulically pneumatically or electrically the important ty

Q. Illustrate the process of insulation on pipe? Factory fabricated sectional pipe insulation shall be applied in staggered joint construction and secured with wire loops or ba

what is the velocity and acceleration when connecting rod and crank are mutually perpendicular?