Soft starters for Under water Pipe laying vessels
Driving Bow Thrusters
On the pipe laying vessel "Lochnagar"
Motor ratings: 690V, 1800A
Adding 20 meters in length and 5 meters in breadth, the now 100 meter Lochnagar owned by Brasil Oil Petro Bros was converted from a supplier vessel to a pipe laying vessel at Viktor Lenac shipyard in Croatia.
The Solcon RVS-DN soft-starter was installed to start the vessel's bow thruster rated at 1800KW/690V. Soft starting the thruster eliminates high inrush current and damaging mechanical torque on the motor shaft; eliminating problems from voltage sags in the power system, to reduced life of the mechanical drive system.
RVS-DN 1800A, 690V

| Current limit |
200% In |
150-170% In |
|
Start time |
14.3 sec |
20sec |
|
Pitch |
0 |
0 |
The Pipe Laying Vessel Lochnagar




