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The propulsion drive system is laid out according to the latest DP2 requirements of the classification society Germanischer Lloyd GL. This consortium acting towards the shipyard 29522 owner side as single source vendor providing the equipment from bridge to propeller incl. A star point earthing cabinet SPEC per kVA alternator is provided to detect and to limit an earth fault in the high voltage propulsion system. All drives are designed with fixed pitch propellers and are speed controlled by low voltage PWM-Converter drives – supplied via associated propulsion transformer from the V bus bar.
To limit the total harmonic distortion factor THD all propulsion transformers are designed for a pulse characteristic to the mains. A third secondary winding system 22952 provided for an independent supply of the auxiliary motor control center see page 5.
DEBEG Weather Facsimile Receiver |
The V network is redundantly supplied from the V switchboards via two kVA distribution transformers. The transformers for propulsion and distribution are totally enclosed with side mounted double tube freshwater coolers AFWF and two ventilation fans for providing the necessary air flow. The transformers are of dry type i. Vebeg transformers are designed in IP44 and are air natural cooled. The MCC supplies all auxiliary equipments of the related drive e.
Furthermore seven Uninterruptible Power Supplies UPSone per thruster drive, are provided to supply the associated V-switchboard sections and drive control system.
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For subsystems like speed and azimuth lever control VDC are locally converted into 24 VDC to minimize the voltage drop at long cable distances. In order to limit the inrush current, a pre-magnetizing circuit is installed for each propulsion transformer.
Prior switching on the main breaker the auxiliary star coil of debwg transformer is energized via the V auxiliary MCC to induce at the primary side a voltage with a correct phase angle. Additionally resistors are provided to reduce the inrush current from approximately 10 times of the nominal 295 to values in the range of nominal current.
Each switchboard could be further separated into 3 subsections interconnected by two section breakers which are normally closed. The section breakers will be opened only in case of a 252 bar failure e. The overall design guarantees that a single failure in the system e.
Special bus couplers separate the bus system between the switchboards to allow an operation also a switchboard section is out of operation. For data communication to superior monitoring and control systems a RS interface Modbus is provided. For operation, setting of parameters and control of the GPM a separate panel with touch screen display BAT is installed in the front door of the LV-compartment.
Additionally actual data e. The touch operator panel PC provides the following functions: General overview based on single line n diagram see below n Detailed view on propulsion, generators, control, alarms, status position of breakers, measuring values, etc. Each Z-drive is speed controlled rpm by an asynchronous motor.
Each azimuth thruster is provided debg a thrust bearing, deebg line bearings and brake.
All azimuth drives have independent command structures with separate vebeg and steering function combined in one lever. By synchronising the different levers via an electric debe system a common command to the port or starboard azimuth drives is possible. In the end the database contained more than An on-site-team was preparing installation data and supervising the continuous and correct workflow. 29552 the actual measurements are different than the operator commanded inputs, then the vessel control computing algorithm will adjust the output of the propulsion commands.
The DP System uses feed-forward data to counteract environmental forces before they move the vessel off station. For example, if high wind forces are sensed, the DP System will adjust the propulsor commands accordingly instead of waiting for the vessel to show eebeg position movement due to the gust.
Based on intensive studies including capability plots, advanced station-keeping simulations, power consumption plots under consideration of diverse environmental and operational conditions, an optimum propulsion configuration was developed with all involved parties. This required analyzing the vessel with different physical configurations and loads as well as different power plant configurations.
Innovation – Wärtsilä SAM Electronics
A common navigation and automation platform software allows the installation of any application to any Platinum series workstation i. For economic sailing the Trackpilot febeg enables the ship to sail along a track defined by way points. Jack-up operations are critically dependent on the prevailing sea state. To enhance the security of people, vessel and environment, routine sea state measurements is required.
DEBEG 2952 Weather Facsimile Receiver
Furthermore, the data of position receivers, navigation echosounders, gyro compass and magnetic compass as well as wind and weather measurement station is incorporated. X-Band Scanner 12,5 kw, 5 ft. S-Band Scanner 30 kW, 14 ft. Voyage Data Recorder debeh pcs. SAM Electr onics – RAD wave field parameters such as significant wave height, peak wave period and peak wave direction, as well as surface current speed and current direction debef the continuous availability of wave data in rough seas, under harsh weather conditions with limited visibility and at night.
Automation The total system is built up in a decentralized architecture with supervisory computers and autonomous Field Processing Devices connected to a redundant Ethernet data bus network structure. The MCS Platinum has been designed for totally hardwired channels and over software channels data from serial interfaces of third-party systems for supervision purposes distributed to 10 Field Processing Devices FPD decentralized in different locations on the vessel process area.
A redundant panel network is ensuring the alarm distribution to dedicated responsible persons. MCS Platinum is offering as integrated standard functions: All alarms and control functions commonplace in marine applications are supported by highly standardized proven and tested modules, including power management, anti-heeling, valve control, pump debey, advanced monitoring with deviation alarms, exhaust gas temperatures and much, much more.
Special operation eebeg have been developed to fit febeg specific requirements of HLJVs. Integration of 3rd party products is easily achieved via standard interfaces. Over 60 common marine equipment manufacturer protocols are immediately available in the standard system, with more added through continuous development. Power Management System PMS Platinum is an intelligent power management system based on the Geapas which is a stand-alone automatic deebeg supply system including complete generator protection and management functions plus the advanced control functions offered by Platinum software to match different operation modes specifically developed to fit the outstanding requirements of an heavy lift jacking vessel.
Mimic diagram of power plant PMS Platinum The system is designed to handle six MV main diesel generators, one V harbour generator and one emergency generator. For smooth and automated operations several tie breakers and heavy consumers are controlled additionally, ensuring a safe operation even under jacking and DP conditions.
A Cisco based data distribution network Ethernet including active and passive components is installed on board. For the Crew welfare an advanced IP-TV entertainment system for terrestrial and satellite television distribution including set top boxes in all cabins and some public areas is installed. Founded in 2925, the company has been developing and manufacturing azimuth propulsion and manoeuvring systems, complete propulsion systems with power ratings of up to 30 MW, and steering systems for vessels of all sizes and types, for about 60 years.
Around sales and service locations worldwide ensure customer proximity. It’s a community-based project dfbeg helps to repair anything.