JON1980

你留中文老外哪看的懂😆

據老教官說法TD修正量最大60度C,溫控840+60=900.所以推到910可以研判有無修正，參考參考。

16 hours ago, NATOPS1 said:

While CBs and fuses essentially "do" the same thing (limit current) the way they do it and the response to overcurrent are different.  Generally, Fuses react faster than CBs to overcurrent situations. The component they (CB/Fuse) supply power to determines what type of protection they need. In this case the TQ and TIT Cbs feed 155VAC to power supplies/amplifiers while the fuses provide 26VAC to drive pressure transmitters and gauges without separate internal power supplies.  

Thank you very much for your information

Can I imagine using a circuit breaker for more loads and a fuse for less loads?

On 2/27/2020 at 7:31 AM, n1dp said:

My gut feeling is the devices under load are considered more long lasting and stable and less likely to need a circuit breaker. Rare that a transformer fails, certainly at those loads. This is instrument power, 26 VAC single phase if I recall right. Never saw one fail in 26 years of fixing and flying.

Thank you.

I see that the current used by the fuse is either 1A or 2A

On 2/27/2020 at 3:33 AM, NATOPS1 said:

Probably need to add a picture of the schematic you are looking at so we can determine what you are actually looking to understand.  

 

Thank you for your reply.

Why not just use circuit breakers all?

I have the same question

Hi everyone 

Are there any differences between fuses and circuit breakers in the secondary AC power supply project? Why design like this？

Thanks