What does the I-t tab represent in EcoSet Design?

The I-t (Current-Time) tab displays the relationship between fault current (I) and circuit breaker operating time (t). This view helps users analyze how protective devices respond under various fault conditions.

The I-t graph is commonly used to:

• Analyze circuit breaker tripping performance.
• Verify protection coordination between devices.
• Evaluate selectivity and discrimination of protective devices.
• Assess whether protection settings provide the intended fault clearance sequence.

In the graph:

• The horizontal axis (X-axis) represents the current (I).
• The vertical axis (Y-axis) represents the operating time (t).

By reviewing the I-t curves, users can determine how quickly a circuit breaker will trip for a given fault current and ensure proper coordination with upstream and downstream protective devices.