electricpy.fault.tocreset

electricpy.fault.tocreset(I, Ipickup, TD, curve='U1', CTR=1)[source]

Time OverCurrent Reset Time Function.

Function to calculate the time to reset for a TOC (Time-OverCurrent, 51) element.

Parameters:

  • I (float) – Measured Current in Amps

  • Ipickup (float) – Fault Current Pickup Setting (in Amps)

  • TD (float) – Time Dial Setting

  • curve (string, optional) – Name of specified TOC curve, may be entry from set: {U1,U2,U3,U4,U5,C1,C2,C3,C4,C5}, default=U1

  • CTR (float, optional) – Current Transformer Ratio, default=1

Returns:

tr – Time-to-Reset for characterized element.

Return type:

float