Baltimore bridge collapse

[Alistair_Heaton]

Dali Shipowners Sue HD Hyundai Over Alleged Defective Switchboard Linked to Baltimore Bridge Collapse

Marine Insight - The maritime industry guide.

www.marineinsight.com

Some detail I hadn't seen before.

 

[XR250]

What a quagmire. I imagine the only ones who win this is the Attorneys.

 

[TugboatEng]

Initially the story read as if a power transform failed. Now it reads as if a control transformer failed. At the same time, we saw a lot of black smoke during the outage which a control transformer failure doesn't explain.

 

[Alistair_Heaton]

Tug could you explain the difference between the two please.

 

[TugboatEng]

A power transformer is usually in the KVA or MVA range and may transform 6kV to 480V or 480 to 120V for powering motors and lighting.

A control transformer is typically in the VA range and would transform 480V to 120 or 24V. A control transformer powers controllers and relays.