"Operate Delay Time" in ABB REF615

[S.Clementin]

Hi, how are you?
Im writing here cause i would like to know what exactly means "Operate Delay Time" in ABB REF615 relays. What it is the difference between Operate Delay Time and Time Multiplier?? This options appears when editing overcurrent protection parameters.

Im working on a selectivity study, and if im correct, i must consideer this operate delay time for the coordination with other relays.

Thanks a lot for your help.
Sebastian

 

[JG2828]

Operate Delay Time is only used when the operating curve setting is set to Definite Time. All other curves use the time multiplier setting.

4.2.1.6 (pg 139) of the technical manual here:

https://library.e.abb.com/public/0bf06cb26c50628cc1257b130056c974/RE_615_tech_756887_ENb.pdf

 

[S.Clementin]

Thanks JG2828!!

I looked in the manual, but i could not find this information. Tnks!!