ATS vs VTs

[M3du]

How to prevent the Operation of the ATS in case VT fuses blown??

Is there any way to avoid this sys interruption rather than the supervision relay of the VT?

 

[davidbeach]

Also look at a separate voltage downstream of the ATS and require that it also be out before transferring.

 

[M3du]

Could you elaborate more

thanx

 

[burntcoil]

If you have line and bus VTs, you can know if your Line side is actually OFF or its blown fuse. Transfer scheme shall look at both Line and Bus voltages.