Table of Contents
Advertisement
The 5 selectable time-current curve shapes are the following:
-
moderately inverse
-
normally inverse
-
very inverse
-
extremely inverse
-
definite time
The 3 programmed curve types are the following:
-
ANSI
-
IAC
-
IEC / BS142
All curve shapes have a time multiplier (M) allowing modifying the trip time.
For the 3 possible curve types and their shapes see:
REMARK: when selecting the curve for the circuit breaker trip, make sure the max. input current to IPR-D
does not exceed 100 A for more than 1 second ⇒ the wrong combination of time and current could
damage the unit and consequently provoke the loss of protection.
CURRENT PROTECTION RELAY - IPR-D
Appendix A
1.2
Chapter 1: General information
Manual P/N: IPR-D GBM 01/09/2006
Advertisement
Table of Contents
