Inrush current

[Farmelectrics]

Can anyone give me a simple example of inrush current

 

[Farmelectrics]

thanks rob how do i move them from my photos to photo bucket

 

[topquark]

Have a read from page 10 onwards in here: Circuit Breaker Application Guide_Merlin Gerin

Or here: http://www.neweysonline.co.uk/newey...rcuit_Breaker_Application_Guide_Technical.pdf

 

[Bobster]

thanks rob how do i move them from my photos to photo bucket

Seems you've already worked it out? Open photobucket app, select choose from library, all straightforward.

 

[Bobster]

It's setting your magnetic tripping point. As tony has previously stated.

 

[plugsandsparks]

Looks like a 200A breaker that can be tuned down to 160A for normal long duration overload. Its currently set at 200A.
The next one is the short term overload (inrush) etc, this is a function of the first one.
i.e. X Ir - it is set to 5 but can go higher to 10, so the max in-rush current is 1000A as its is currently set.

Hope i got that right

 

[Bobster]

I'd of personally said its a thermal, magnetic Mccb. In which case your a little bit off plugsandsparks

Baisically In the thermal-magnetic trip element circuit breaker, a magnetic element (electromagnet) is connected in series with the circuit load, and a bimetallic element is heated by the load current. With normal circuit current, the bimetallic element does not bend, and the magnetic element does not attract the trip barIf the temperature or current increases over a sustained period of time, the bimetallic element will bend, push the trip bar and release the latch. The circuit breaker will trip.

This combines overload protection with short circuit protection.

Sorry re-reading that sounds like I'm trying to teach you to suck eggs. Just much help other people who don't know.

This is all just a presumption, I haven't looked up that type or breaker to confirm.

 

[plugsandsparks]

Not disagreeing, you are talking about how it works i was talking about the settings and what they do. Long duration overload, read thermal and inrush settings read short circuit or magnetic