AVR and Governor controller location for a Diesel Generator

[NickParker]

For Essential and Emergency generators on a ship, where are the AVR and governor controller typically located on a diesel generator? Are they housed together in the same control panel on the skid, or are they installed in a remote control panel separate from the skid? What is the standard practice or current trend? The capacities range from 1.5MW to 5MW.

 

[waross]

For land based standby generators;
Old school, the hydraulic governors were engine mounted and direct driven by the engine.
The raise lower control may be manual on the governor or may be remote in the control room.
The governor on newer sets may be incorporated in the Engine Control Module. Probably engine mounted.
AVR, below about 0.5 MVA will probably be mounted in the control cabinet on the skid.
As the size of the gen-set increases, it is more likely that there will not be a control panel on the skid and the AVR will be remotely mounted.
Most of the shipboard gen-sets that I have encountered were land based sets retrofitted to add refrigeration to the fish holds.
TugboatEng will have more accurate information on new designs.

 

[Hoxton123]

In the old days, the AVR (excitation controller) was supplied loose by the generator manufacturer for others to mount in the switchboard.

This was because the old components (valves transistors) were not capable of accepting the vibration of a generating set.

Technology has progressed, and even with high voltage sets, you see generators supplied with AVRs mounted in the generator housing, it is economic, and the market accepts it.

You see some users putting the AVR in the switchboard, it's their choice. For base load continuous running sets, i would put the AVR in the switchboard....

 

[NickParker]

In the old days, the AVR (excitation controller) was supplied loose by the generator manufacturer for others to mount in the switchboard.

This was because the old components (valves transistors) were not capable of accepting the vibration of a generating set.

Technology has progressed, and even with high voltage sets, you see generators supplied with AVRs mounted in the generator housing, it is economic, and the market accepts it.

You see some users putting the AVR in the switchboard, it's their choice. For base load continuous running sets, i would put the AVR in the switchboard....

Does installing an AVR in the switchgear raise any arc flash concerns?