Operation

Normally there is only one Maximum Time setting for each protection group. It’s a global setting which means that it applies to all trip settings in that group that use an inverse curve for timing.

When the Extended Maximum Time per curve feature is on, there is a separate Maximum Time setting for each inverse curve that has been applied (Maximum 18).

This feature also reduces the minimum value for Maximum Time settings from
2.0 s to 0.2 s. The maximum setting remains at 180.0 s.

The figure below shows the Global Settings and Trip 1 pages with Extended Maximum Timer per Curve Off. In this configuration, Maximum Time is a global setting. One setting per group appears on the Global Settings page.

In the figure below with Extended Maximum Time per Curve On, the Maximum Time setting no longer appears on the Global Settings page. Instead, a separate Maximum Time setting is included for each trip setting for which an inverse curve is selected.