To find component

[mohamer]

Please let me know the component name. It’s written L1

 

[FvM]

A toroid choke, most likely a common mode power line choke like below with 4 terminals and two windings

 

[mohamer]

A toroid choke, most likely a common mode power line choke like below with 4 terminals and two windings

View attachment 171648

A toroid choke, most likely a common mode power line choke like below with 4 terminals and two windings

View attachment 171648

Thanks for your reply.

We are encountering leakage current problem in power supply, this toroid choke is the reason?

 

[KlausST]

We are encountering leakage current problem in power supply, this toroid choke is the reason?

You need to define the "leakage current". (Magnitude, AC or DC, which path, is this a safety issue, why is it a problem)

Usually a common mode choke is unlikely to cause a leakage current problem.

Klaus

 

[FvM]

If your problem is AC residual current, I would look at filter capacitors C1 and C2.

 

[mohamer]

AC leakage current

 

[KlausST]

N | PE ?