what is load angle? use of load angle?


3 Answers

  • 1 decade ago
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    You need to state the context for your question. I could interpret this as a mechanical/structural question or an electrical question.

    In the electrical world - power transfer is

    P = [(E1 x E2) sin (a)]/X


    E1 and E2 are the sending and receiving end voltages

    a is the angle between E1 and E2

    X is the reactance of the circuit

    This expression says that will voltages constant, the power transfer through a circuit is a function of a. If a is zero, there is no power transfer. Maximum power transfer occurs when the a is 90 degrees. Because power transfer is a function of a, a is also known as the 'load angle'.

    If you have an array of generators on a system, the fact that the system operates at a single frequency means that the generators must all be rotating at the same speed. (Well - almost. All two-pole generators will be at one speed, while all four-pole generators will be at exactly have that rotational speed, etc.). But there will be a small difference in the physical position of the rotors of those generators - the rotors of generators that are more heavily loaded (in per unit of their individual rating) will lag the rotors of the more lightly loaded machines. These angular differences are the load angles of the individual machines and can be calculated from the power transfer expression above.

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  • 1 decade ago

    loads are forces applied to a component of a structure or to the structure as a unit.[1]

    In structural design, assumed loads are specified in national and local design codes for types of structures, geographic locations, and usage. In addition to the load magnitude, its frequency of occurrence, distribution, and nature (static or dynamic) are important factors in design. Loads cause stresses, deformations and displacements in structures. Assessment of their effects is carried out by the methods of structural analysis. Excess load or overloading may cause structural failure, and hence such possibility should be either considered in the design or strictly controlled.

    In the Eurocodes, the term actions has a similar meaning to loads, but encompasses applied deformations as well as forces.

    The following lists the common loading types primarily for civil infrastructure and land machinery. Structures for aerospace (e.g. aircraft, satellites, rockets, space stations, etc...) and marine environments (e.g. boats, submarines, etc.) have their own particular design loads and considerations.

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  • 1 decade ago

    um probably angel dust, any1 who uses alot of angel is not really coherent, so whoever u heard that from, stay away from them

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