Fault Diagram

The red line on this map follows the surface trace of the san andreas fault across california.

Fault diagram. The fault plane is where the action is. Fault tree analysis fta is a top down deductive failure analysis in which an undesired state of a system is analyzed using boolean logic to combine a series of lower level events. If fault involves earth a current in flows into the neutral from the earth.

This type of fault is not balanced within the three phases and its fault current is seldom calculated for equipment ratings because it does not provide the maximum fault current magnitude. A b and c depict normal faulting. Faults are subdivided according to the movement of the two blocks.

This current flows through the neutral impedance zn. Encyclopaedia britannica universal images group getty images. Bolted line to line faults figure 1 b are more common than three phase faults and have fault currents that are approximately 87 of the three phase bolted fault current.

At a glance the juxtaposition relationships of the various reservoir units across the fault can be seen figure 11. It is a flat surface that may be vertical or sloping. Horsts are the up thrown blocks and the grabens are the down thrown blocks.

A and b are reverse faults and c is a low angle reverse fault typically called a thrust fault. Areas to the west left of the fault are part of the pacific tectonic plate. Areas to the east right of the fault are on the north american tectonic plate.

Allan diagrams or fault juxtaposition diagrams show the reservoir stratigraphy of both the hanging wall and footwall locations superimposed on the fault plane. This analysis method is mainly used in safety engineering and reliability engineering to understand how systems can fail to identify the best ways to reduce risk and to determine or get a feeling for event. A diagram outlining the basics of faulting.