IEEE 80005-2-2016 pdf free download – Utility connections in port – Part 2: High and low voltage shore connection systems – Data communication for monitoring and control.
7.2.5 Optional cable test
7.2.5.1 General After the start of power procedure is carried out, the earthing switches SE 1 and SE 2 are already opened and the permission to close the onshore CB was sent from the ship, the shore indicates to the ship Shore Cable Test Ready (see 5.8.2.5 and 6.8.2.4). The ship has the possibility to execute a cable test or to skip the cable test. If the ship wants to execute a cable test, it shall send the command Ship Co Test Cable, otherwise it shall send the Ship Co No Cable Test command (see 6.7). For both signals a change from 0→1 is required. The different subprocedures are described in 7.2.5.2 and 7.2.5.3. Optional cable test is ramping up the shore voltage up to nominal voltage, with reduced power, in order to verify the integrity of the cable and plugs and sockets outlets.
7.2.5.2 Execute cable test After receiving of the command Ship Co Test Cable (change from 0→1 ) the shore side is sending the feedback signal Shore Mode Cable Test (see 5.3.2). As soon as the shore is ready the request Shore Co Switch To Test Position (see 5.7, 5.8.2.5 and 6.8.2.4) is sent to the ship. The ship side will switch to Ship Mode Cable Test and shall ensure that earthing switch SE2 is open and circuit breaker CB S2 is in open position.
The ship indicates this status to shore with the Ship Switched To Test Position signal. The shore is starting the cable test. It is possible that the cable test effects the circuit breaker S1 (closing and opening is possible). If the cable test was performed successfully, shore sends the signal Shore Cable Test Ok, otherwise Shore Cable Test Not Ok. If the test was successful the earthing switch SE1 and SE2 stay in open position, otherwise SE1 and SE2 will be closed. Shore indicates the end of the cable test procedure with the signal Shore Cable Test End and the cable test mode (Shore Mode Cable Test, Ship Mode Cable Test) is reset onshore and onboard. The subprocedure for synchronizing is activated automatically if the cable test was performed successfully, otherwise if the test was not successful the shore will automatically launch the stop procedure.
7.2.5.3 No cable test After receiving of the command Ship Co No Cable Test (change from 0→1 ) the shore side is sending the feedback signal Shore Cable Test End. The subprocedure for synchronizing is activated automatically.
7.2.6 Synchronizing
7.2.6.1 General According to the selected Synchronizing Mode (see 7.2.3) one of the following alternatives is performed. Precondition for synchronizing is that the cable test was performed successful or waived. See also 5.8.2.6 and 6.8.2.5.
7.2.6.2 Synchronizing alternative 1 (A1 ) In this mode the ship side is synchronizing to the shore side. This mode is default mode. Shore is in Shore Mode Synchronization A1 and ship side is in Ship Mode Synchronization A1 (see 5.3.3 and 6.3.3). After the optional cable test was performed successfully or waived the shore has already closed the circuit breaker CB S1 . Ship closes circuit breaker S2. Shore ramps up to nominal values (voltage, frequency) and will send the signal Shore Cable Is Powered (see 5.8.2.6 and 6.8.2.5). Ship starts the synchronizing. After successful synchronizing the circuit breaker S3 on ship is closed and ship changes the operation mode to Ship Mode Running. Also shore side changes the operation mode to Shore Mode Running” after receiving the signal Ship Synchronized And CB S3 Closed. The start up procedure is finished and all auxiliary flags are reset.
7.2.6.3 Synchronizing alternative 2 (A2) In this mode the ship side synchronizes the shore by sending commands for voltage and frequency adjustment. This mode may be used, as additional option, when the shore side is equipped to be synchronized to the ship and the switching over from ship to shore is controlled by the ships power automation system. Shore is in Shore Mode Synchronization A2 and ship side is in Ship Mode Synchronization A2 (see 5.3.3 and 6.3.3).IEEE 80005-2 pdf download.