MPS - Marine Propulsion Sliprings

Manufactured by Specimas

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Specimas

SpecimasMarine Propulsion Sliprings

The Cavotec Group

Cavotec is the name of a group ofcompanies specialized in power supplytechnology for cranes and otherindustrial equipment. It is formed by6 manufacturing companies located inAustralia, France, Germany, Italy,Sweden and U.S.A., as well as by 18Cavotec sales companies which,together with a network ofDistributors, serve more than 30countries in five continents.Each manufacturing company, nomatter where it is located, aims atbeing a market leader in its field byproviding innovative and reliableproducts to Group customers.Although they manufacture differentproducts in different countries, theyare globally supported andcoordinated by the Cavotec Group intheir product development andmarketing activities.Each sales company, and eachdistributor, has a policy aiming atbetter serving its local market withthe full support of the Cavotec Group.

Our fieldsof activity are

Robots,Automation

OffshoreMarine

Constructions

Mining,tunnelling

Steel Mills

Forestry

Ports,Terminals

Our aim isto be local everywhereGreat emphasis is put in providing thehighest quality not only in theselected products, but also in serviceto the customers.Our philosophy in fact is to be localeverywhere.

Specimas, a Cavotec Group company , issince 1963 engineering and manufacturingcable reels, slipring assemblies andPanzerbelt ® cable protection systems forports, marine, offshore and tunnellingapplications.MacGregor Sweden was the first marinecustomer who is installing our slipringassemblies since 25 year in their shipcranes.Located 10 km from Milan, Specimasemploys 70 persons of which 15 graduatedor equivalent engineers. Specimas iscommitted to quality of the products aswell as there service. More than 30.000cable reels and slipring assemblies havebeen installed during the last 35 years.

The CertificationsSpecimas aim is to provide the highestquality , as confirmed by the ISO 9001certificate received first in 1995 fromTÜV Germany. The MPS has beenapproved by various naval registers asLloyd’s, Bureau Veritas, DNV, RINA,Germanischer Lloyds.

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A revolutionarypropulsion system

Traditional “on axis” shaft-propeller systemwith diesel engine

Azimutning propulsion drive (Azipod) Azimutning propulsion drive (SSP Propulsor)

ABB Azipod propulsion system

Siemens-Schottel SSP propulsion system

Since the early 1950's, Asea BrownBoveri (ABB) has been supplyingelectrical propulsion and power plantsfor half of the world's icebreakers andmany special purpose vessels built byKvaerner Masa Yard (KMY) in Finland.AC/DC power plants and the Cyclopropulsion systems were introduced byABB and KMY as a new technologyearly in 1983.New propulsion systems have beendeveloped by other large companieslike Schottel-Siemens from Germanyand Alstom from France operatingunder different names as: Azipod(registred trade name of ABB), SSPPropulsor (registered trade name ofSiemens Schottel) or Mermaid(registered trade name of Alstom).

These systems incorpo-rate an electrical motorazymuting (slewing)through 360 deginstalled inside thepod. The pod itself is

installed outside the ship’s hull.The revolutionary advantages of thesystem are:• excellent manoeuvrability and

dynamic performance as thepropeller can be directed in anydirection within 360 deg.

• space and weight savings, no longshaftlines, reduction gears, rudder

• fuel savings through improvedhydrodynamic efficiency

• low noise and vibrations by the useof optimised propeller wake field

• safety and redundancy

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Two propulsion drives

AZIPOD SYSTEM

Installed on top of the ABB Azipodsystem, the MPS slipring systemallows the pod and propeller to rotatethe total 360 degrees. It’s function is to:

• Transfer power (example 3600 Amps, 1,5KV) from the diesel generators to therevolving outboard electrical motor andpropeller through brushes and rings

• Transfer auxiliary power, control signalsand data signals or optical signals fromthe pod to the control room, through silverbrushes and rings and/ or optical swiveljoint.

• Transfer hydraulic, oil, water and airnecessary for the motor through ahydraulic swivel

• Mount and support the steering anglesensors for the ship steering system andthe visual steering angle indicator

• Function as a part of the air coolingsystem of the motor

ABB AZIPODPROPULSION

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SCHOTTEL SYSTEM

Installed on the top of the Siemens-Schottel SSP System, the MPS slipringsystem allows the pod and propeller torotate the total 360 degrees.Its function is to:

• Transfer power (example 2000 Amps,1,5 KV) from the diesel generators to therevolving outboard electrical motor andpropellers through brushes and rings

• Transfer auxiliary power, control signalsand data signals from the pod to thecontrol room through brushes and ringsand/or inductive systems.

• Transfer water and air necessaryfor the motor through a hydraulic swivel

• Mount and support the steering anglesensors for the ship steering systemand the visual steering angle indicator

SIEMENS-SCHOTTELSSP PROPULSION

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Specimas Cavotec's contributionto a revolutionary propulsion system

In 1999, Siemens-Schottel of Germanyplaced the first order for a similarsystem to power two TT-lines ferriesand the Costa Classica cruise liners.

With a population of over 59 MarinePropulsion Sliprings (MPS) installedall over the world, in different type ofships from cruise liners, to ice-breakers, ferries, military ships, etc,Specimas – Cavotec is today the onlysupplier able to offer a completesystem combining electrical, data andhydraulic transmission.

The reliability of the system is vitaland the 24/24 hours service,availability is part of our strength toserve our customers navigating whereever, from Barrents Sea to the CoralSea, from the North Sea to Panama,or from the Chinese Sea to theTasmanian Sea.

In the early 90's, ABB Marine andKvaerner Masa Yard of Finlandapproached Specimas for a R & Dstudy concerning the power, data andhydraulic transmission for a revolutionaryship propulsion system using anoutboard electrical motor instead of thetraditional on line shaft inboard dieselpowered propulsion.The 360 degrees manoeuvrabilityrequires the installation of a slipringunit able to transmit up to 4000 Ampsat 3 kV, data - control through opticalfibers, or conventional rings and aspecial multi chanel swivel for billage,oil, grease and air.

After 3 years of tests and studies firston the Lunni ice breaking oil tankerand after that on the Botnica, in 1995we received the first orders for theFantasy Class Carnival Corporation,M/S Paradise and Elation.

The R & D and technical officesare fully dedicated to the development

and manufacturing of theMPS slipring system.

The offices are equipped with 7 CADstations using Hewlett Packard ME10 and Pro-engineering 3D software.

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The MPS slipring system is suppliedin an IP 44 heavy robust steelhousing for marine use and is pre-wired with cables or hoses accordingto the customer request.

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Applications

The MPS sliprings are installed atthe stern of the ship and according tothe application can be single or twin,centrally located , or port andstarboard side.

Designed ,manufactured andtested to resist toforces of 5 G or moreand strong vibrations,the MPS slipring is avital component tothe ship reliability.

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In this photo of the main electrical control room, the “brain “ of the ship ,we can see how the MPS slipring system is integrated in the propulsion system of the shipin order to insure 100% reliability on a ship carrying around 2500 passengers and crew.

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Specimas MPS - Marine Propulsion Sliprings

Type KK 648/4/3 kVMain Power 1200 Amp, 3 kVAuxiliary power 50 Amp rings, 400 VData transmission encoder and data linesApprox.dimension diam. 1400 mm,

total height 1200 mm

KK 648/4/3 kV

Type KK 940/8Main Power 3500 Amp, 2 kVExcitation 500 Amp, 1 kVAuxiliary power 20 Amp and 10 rings, 500 VData transmission encoder and data lines in EMC

enclosure (or FO link)Hydraulic swivel 7 channels - oil, grease, water and air

(mounted inside center tube)Approx.dimension diam. 1800 mm,

height power unit 1500 mm,total height 2500 mm

KK 940/8

Type: KK 1120/8Main Power 3500 Amp, 2 kVExcitation: 500 Amp, 1kVAuxiliary power 20 Amp and 10 Amp rings 500VData transmission encoder and data lines in EMC

enclosure (or FO link)Hydraulic swivel 7 channels - oil, grease, water and air

(auxiliary power, data transmission andhydraulic swivel mounted inside center tube)

Approx.dimension diam. 2300 mm,total height 1700 mm

KK 1120/8

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Specimas-Cavotec can supply a complete package withvarious accessories like cables, hoses, connectors,swivels etc.Example of a complete package.

Accessories

Type KK 940/7/3 kVMain Power 1500 Amp, 3,3 kVAuxiliary power 20 and 10 Amp rings, 500 V

as option silver plated rings,as option with double brushes

Data transmission encoder and data lines, gold platedrings in EMC enclosure (or FO link)

Hydraulic swivel 7 channels - oil, grease, water and air(mounted inside center tube)

Approx.dimension diam. 1800 mm,height power unit 950 mm,total height 1650 mm

KK 940/7/3 kV

Type: KK 648/7Main Power 1900 Amp, 3 kVAuxiliary power 50 Amp rings, 400VData transmission encoder and data linesApprox.dimension diam. 1400 mm,

total height 1200 mm

KK 648/7

to generator

cable premounted with connectorconnector

fixed connectorcontrol and

data slipring

power and excitation slipring

hydraulic swivel

cable prewired to slipring with connector

connectorfixed connector

Electrical motor

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Continuous and high-tech researchand tests are made in order tooptimise materials for this specifichigh endurance application.Working very closely to the variousinternational certifying institutes weare able to stay updated with thelatest specifications and technologies.

With a network of 22 own companiesand various distributors ourGroup is present in 40countries and we areable to supply serviceand commissioningworldwide in theshortest time.

A Specimas Team specializedin "MPS" research, control and service

The service teams headed by Mr. Peter Brandel, Sandro Teruzzi and Sorin Florenzioare available 7/7 days, 365 days per year with technical know how and spares.

Caspian Sea 1999

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Due to the absolute reliabilityrequired, sophisticated testinstruments are used for thecontrol of each single component.Each and every unit is testedand certified under witnessform the classification societiesbefore delivery.

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Reliable, proven and with long practical experience:59 sliprings (March 31st 2001 ), with some sliprings having been inoperation over 24.000 hours.

Complete package supplied on request: power, auxiliary power, control,data transfer, hydraulics, air cooling, steering angle sensing devices,pipes, cables pre-wired and connectors.

Easy and low maintenance with self cleaning brushes and rings.

Fast replacement of rings or brushes ,in case of necessity,without dismounting the complete slipring assembly.

Big tolerances, allowing for vertical and angular brushmovements due to movements in the pod structure.

No metal to metal contact with wear, no risk of brushes getting stuck orbent due to movement in the pod structure, heat expansion or vibrations.

The vertical rings do not accumulate dirt as the horizontal plate rings do.

Many electrical contact points on the ring with excellentcurrent distribution and less heat created.

Symmetric current distribution in the rings with many cableconnection points.

Heavy housing and structure, tested at resonance frequency up to 2Gand at shock load up to 5G.

Easy to adapt design up to 9 KV and 4000 Amps

365 days service and spare parts availability via our 22companies around the world.

Advantagesof the Specimas MPS system

Auxiliary power data and control slipring

Cavotec single pole6kV connectors

Hydraulic swivel

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Crusing with the MPS system

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REFERENCE LIST MARINE PROPULSION SLIPRINGS (MPS) at march 31st 2001

Ship / Project Name: Client Yard Units Delivery MW

Uikku Nermac KMH * 1 1993 11,4

Lunni Neste KMH 1 1995 11,4

Röthelstein 2 1994 0,56

Antarticaborg Wagenborg KMT 2 1998 1,62

Articaborg Wagenborg KMT 2 1998 1,62

Coast Guard 1 1998 0,25

Paradise CCL KMH 2 1997 14

Elation CCL KMH 2 1997 14

Europe Hapag Lloyd KMH 2 1998 6,65

Voyager of the Seas RCI KMT 2 1998 14

Botnica Coast Guard 2 1997 5

Atlantic Costa KMH 2 1999 17,6

Explorer of the Seas RCI KMT 2 1999 14

Amsterdam HAL Finncantieri 2 1999 15,5

Carnival Spirit CCL KMH 2 2000 17,6

Radiance of the Seas RCI JLM 2 2000 19,5

Adventure of the Seas RCI KMT 2 2000 14

Ship / Project Name: Client Yard Units Delivery MW

Svalbard Coast Guard Langsten 2 2000 5

Super Start Libra Star Cruise JLM 2 2000 19,5

Carnival Pride CCL KMH 2 2000 17,6

Antarticaborg Wagenborg 1 2000 1,62

Nils Holgerson TT-line SSW 2 2000 11

Peter Pan TT-line SSW 2 2000 11

Costa Classica Costa Cammell Laird 1 2000 8

Cosco 1 Guangzhou Guangzhou 2 2001/11 5

Brilliance of the Seas RCI JLM 2 2001/13 19,5

Cosco 2 Guangzhou Guangzhou 2 2001/20 5

Fortum Tanker 1 ex Neste Sumitomo 1 2001/24 16

Fortum Tanker 2 ex Neste Sumitomo 1 2001/29 16

HAL1 HAL Finncantieri 2 2001/26 17,6

Carnival Legend CCL KMH 2 2001/36 17,6

Eagle 4 RCI KMT 2 2001/36 14

Super Star Scorpio Star Cruise JLM 2 2001/42 19,5

* Marine Power Chain system (MPC)

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Apr.2001

Power supply and crane technology

Cavotec GroupManufacturing Companies

Cavotec GroupSales Companies and Distributors

Cavotec GroupHeadquarters

HollandCavotec Group Holdings N.V.Postbus 213NL-2950 AE Alblasserdamphone: int. 31-78-693 0794fax: int. 31-78-693 1212

U.K.Cavotec International LtdStirling Way, Market DeepingLincolnshire PE6 8ASphone: int. 44-1778.346 769fax: int. 44-1778.341 850

For more information consultour home page on the Internet:www.cavotec.comE-commerce sites:www.cavotecshop.comwww.flexiblecables.com

AustraliaCavotec MetoolCardiff (Newcastle)Perth

FranceCavotec RMSCergy Pontoise (Paris)

GermanyAlfo CavotecOverath (Köln)

ItalySpecimasNova Milanese (Milan)

SwedenCavotec ConnectorsDalby (Malmö)

U.S.A./CanadaCavotec Inc.Statesville, NC

ArgentinaCavotec Latin AmericaBuenos Aires

AustraliaCavotec MetoolCardiff (Newcastle),Brisbane, Sydney, Perth,Melbourne

BahrainCavotec BahrainManama

BeNeLuxCavotec BeneluxAlblasserdam (Rotterdam)Holland

BrasilMarlin GantrexRio de Janeiro

CanadaCavotec CanadaVancouver, BC

ChileGantrexSantiago

ChinaCavotec ChinaShanghai

DenmarkCavotec DanmarkOdense

EgyptAse, Cairo

FinlandCavotec FinlandEspoo (Helsinki)

FranceCavotec RMSCergy Pontoise (Paris)

GermanyAlfo CavotecEschborn (Frankfurt)

Hong KongCavotec Hong KongShatin

IndonesiaCavotec IndonesiaJakarta Utara

ItalyCavotec ItaliaNova Milanese (Milan)

JapanNippon IcanTokyo

KoreaCavotec KoreaUlsan

KuwaitZaid Al-KazemiSafat (Kuwait City)

NorwayCavotec NorgeDrammen

PhilippinesPortek PhilippinesQuezon City

Saudi ArabiaAKTEDammam

SingaporeCavotec SingaporeSingapore

South AfricaGantrexGermiston

SwedenCavotec SverigeStockholm

TaiwanEhrung IndustrialTaipei Hsein

U.A.E.Cavotec Middle EastDubai,Abu Dhabi,Bahrain

U.K. & IrelandCavotec UKMarket Deeping

U.S.A.Cavotec Inc.Statesville, NC