Duty cycle, Mechanical Engineering

Assignment Help:

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.


Related Discussions:- Duty cycle

Direct and bending stresses, Direct and Bending Stresses: defined n...

Direct and Bending Stresses: defined neutral axis, introduced the influence of axial force and bending moment on different sections, attained the core or kernel of di

Theory of machine, rankine hypothesis of critical load for columns

rankine hypothesis of critical load for columns

Objectives-object-oriented control architecture , Objectives After stud...

Objectives After studying this section, you should be capable to understand: Cell control and modeling, Context level data flow diagram, A common cell control sy

Mechanics of materials, how to find bending moment diagram of cantilever be...

how to find bending moment diagram of cantilever beam.any formula

Theory of production process, In Grey Cast Iron, carbon is present in -----...

In Grey Cast Iron, carbon is present in ------------form while in white cast iron, it is found in ----------- form.

TTT of effective normalizing of Ductile tiron, At 1500 degrees F, how much ...

At 1500 degrees F, how much time is required to effectively normalize ductile iron

What is manifolds, Manifolds The surface of a solid must satisfy some c...

Manifolds The surface of a solid must satisfy some conditions so that the resulting solid is well-behaved. This is the so-called manifold condition. While recent research has s

Specifications - boilers, SPECIFIC A TION S:    The boilers are s...

SPECIFIC A TION S:    The boilers are specified as per following parameters : -     Steam Generation Rate : for instance 50 000 kg /hr. -     Maximum Pressure: for

Hooks law, State Hook's law: Sol.: It states that when material is l...

State Hook's law: Sol.: It states that when material is loaded within the elastic limit, the stress is proportional to strain produced by the stress. This means that the rat

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd