Where do you fuse a transformer?
You place the fuse on the driving side of the circuit it is supposed to protect. If you want to protect a cable from overheating, you place the fuse before the cable. If you want to protect a transformer from overheating, you place the fuse before the transformer. A fuse can only protect a circuit it is part of.
What can cause a transformer to burn out?
The most common reason why transformers explode and burn is accidents caused by lightning strikes. Lightning strikes can often damage the wiring and transformer equipment. Other extreme weather conditions such as strong winds and rains can cause trees to fall on transformers, causing explosions.
Can a Class 2 Transformer blow a secondary fuse?
A shorted secondary will draw enough current to blow the primary side fuse. But this will not happen for a class 2 transformer. So a class 2 transformer might still burn up because it was operating for an extended time at slightly over maximum rating, if it lacked a secondary fuse. [Sorry for so many questions. I am definitely confused about this.
Can a primary fuse be used with a secondary fuse?
Why not both – a primary fuse can be optimized to be permissive of any normal operating condition of the transformer, while one or more secondary fuses can make sure the load to the transformer is not faulty – especially when there are multiple secondary windings.
Why is the secondary of the isolation transformer isolated?
However since the secondary is isolated from the primary you can safely derive a new neutral and earth by bonding these together at the secondary of the isolation transformer. This is also done to eliminate noise between “neutral” and earth – as you are shorting it out. There is a safety concern when doing this however.
What’s the minimum fuse for a primary transformer?
These transformers are for one off projects. They are all EI core. So a primary side fuse with 150% rating at 230V would be: Is that correct? The minimum fuse I can get is 200mA. And above 1A is usually in 1A steps. I might not be able to get a 1.5A fuse. Also, I have no idea if these are slow blow fuses.