The fuse blowing time is calculated based the type of fuse you are using. By default, the fuse type is ATO.
The fuse blowing or not are based the follwing calculation:
percentBlow %= blowCurrent * 100.0 / fuseRating;
In your case, the percentBlow is 19672.13/15000 = 131. You need percentBlow, at least, 150 to declare the fuse blown, which means that your fuse did not blow and blowing tine is zero.
Please see attached image.
Please let me know if this helps.
fuseblown.PNG 59.9 KB
thank for your reply.
I tried to input your diagram for a simulation. I used symbols from the quickstart library. All wires with Default parameters.
On the messages window i see that the fuse blows ("DEV7 has blown")
By looking at DEV7 i see that is blown and the blow current is 42A. However I still don't see the Blow time
If i click on DEV7 properties I see following results:
property.blown is TRUE
property.blowCurrent is 42
property.blowtime is 0
Moreover, i realized the console give me an error
"Berkley SPICE 3f5(err): Note:Can't find init file"
I am not sure if I am doing something wrong, or if this error affect the simulation
fuse blow.JPG 145.9 KB
Could you tell me what is the version of your software?
Work on Windows 7 PRofessional
Please note the fuse model with VeSys 2.0 / Capital v2011.1 was changed, if you have an earlier version of VeSys 2.0 / Capital then the blow time was not reported. Do you plan to upgrade?
Good morning Nuri,
I recently upgraded Vesys2
I have 2011 SP1202 now
I still have the same problem.
Is this because I exported the model library from 2010 Vesys (this was one step required by the upgrade)?
The 2011 installation had just the /quickstart models.
I tried also to attach to the fuse models from the /quickstart and still I can't see the blowing time
The new models are located in /quickstart, however more than likely your existing design is still referencing the fuse model in /CHS. You can change that by accessing the model attacher (RMB --> Analysis --> Attach) and picking the newer model.
Let me know how you get on,
Good morning Nuri,
thank you for your reply
I attached /Quickstart/ComponentModels/CircuitProtectors/Fuse
the simulation is working fine