ABB Relion REC615 - Page 814

Figure 441: ANSI long-time inverse reset time characteristics
The delayed inverse-time reset is not available for IEC-type inverse time
curves.
User-programmable delayed inverse reset
The user can define the delayed inverse reset time characteristics with the following
formula using the set Curve parameter D .
General function block features
1MRS758755 C
814 REC615 & RER615
Technical Manual