Impedance can be added after the secondaries are summed to limit maximum fault currents ( the 3 " I " o path ).
32.
The ratings of reclosers run from 2.4 38 kV for load currents from 10 1200 A and fault currents from 1 16 kA.
33.
Additionally, a fire can also increase cell temperatures in adjacent cells, and this further increase the available fault currents ( and heat ).
34.
This limits the rate at which current can increase, which limits the level the fault current can rise to before the breaker is opened.
35.
When it quenches, the sharp rise in resistance reduces the fault current from what it would otherwise be ( the prospective fault current ).
36.
When it quenches, the sharp rise in resistance reduces the fault current from what it would otherwise be ( the prospective fault current ).
37.
The available fault current from the battery you describe will be very high . talk ) 19 : 02, 25 February 2011 ( UTC)
38.
However, they can handle significantly higher fault currents and withstand multiple high-voltage hits ( for example, from lightning ) without significant degradation.
39.
IEEE 1584 provides a guide to perform these calculations given that the maximum fault current, duration of faults, and other general equipment information is known.
40.
A fault current limiter is a nonlinear element which has a low impedance at normal current levels, but presents a higher impedance at fault current levels.
