Take a look at the attached snapshot for more info. I cannot get "DP2_MCB" to trip before "CB-DP2"
when running a fault injection simulation in ETAP. I think the issue is in the instantaneous trip characteristics of the breakers. However, even if I swap out the make/model of "DP2_MCB" with "CB-DP2" and vice versa, it still has the same problem!

If anyone can figure this out, you are a god

https://ibb.co/j8C1GZD

Hi ,

Can you kindly share the picture of the Sequence viewer? (the one with a magnifier in the toolbar). Please note the time of each breaker. Since they are all in the instantaneous region, the tripping time of all the devices may be the same. Since the time may be same, the animation is following the alphanumeric order of the device ID.

Thank you

Would you rather have them beautifuly coordinate like this but with instantaneous all disabled:

https://ibb.co/61RTXD9

Or...

Ugly like this but with instantaneous all enabled:

https://ibb.co/hFNrmfZ

here is the pic of the sequence of events

https://ibb.co/xJTSjbH

DP1-MCB & CB-DP2 show the exact same T1 & T2 but notice DP1-MCB If (kA) is lower
So this indicates to me that DP1-MCB would indeed trip last? (if If was to be the same)

I did manage to get them to trip in the right sequence (by tweaking with the breaker settings) and this is still with the instantaneous region all overlapping
https://ibb.co/DwfrW0x