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2Since 1994 transformers produced byELHAND TRANSFORMATORY are widely usedin shipbuilding industry. They operate both onland in shipyard systems and devices and on thevessels supplying main and auxiliary circuits andstarting tubular rudders. The long experienceof our staff, the quality assurance systemcompliant with the ISO 9001 standard and theuse of high quality components is the base of thereliable operation of our transformers in everyclimatic zone.Our transformers are approved by classificationsocieties given below:American Bureauof ShippingBureauVeritasDet NorskeVeritasGermanischerLloydLloyd’sRegisterPolish Registerof ShippingRegistro ItalianoNavaleRussian MaritimeRegister of Shipping

We are a reliable partner of many shipownerswho order new ships and repair old ones inPolish and European shipyards.The close cooperation with shipyard designdepartments enable us to design and delivertransformers produced according to requiredtechnical data within very short time.We recommend our products to you and inviteyou to the cooperation with our company.We hope that the enclosed reference list willhelp you to estimate our possibilities.MARINE TRANSFORMERS3MARINE POWERTRANSFORMERSThree –phase marine transformers ET3SM are designed to supply themain circuits and to control lightening of vessels.ELHAND TRANSFORMATORY manufactures transformers in naval workmanshipwhich can operate in all climatic zones. They are installed insteel casings of protection degree IP23.The construction of these casings enables quick dismounting and aneasy access to transformer’s terminals.Marine transformerET3SM-63 kVA

ET3SMThree-phase marine transformerswith the power range between 10 kVA and 720 kVATechnical Data:DesignTransformers are manufactured in the maritimeversion W/3. They are manufactured as perEN 60726+A1 and in accordance with the GL,PRS, RMRS, RINA, BV, LR, DNV and ABSregulations, depending upon the requirementsstipulated in a purchase order.Insulation class T45F – standard (or upon request T45B or T45H)Protection degree IP 23Frequency 50 Hz or 60 HzPrimary voltage 3 x 400 V ± 2,5%Secondary voltage 3 x 231 VTerminalsScrew terminals with nominal section between10 mm 2 up to 240 mm 2 or copper bus barsFasteningon mounting bracketsCoolingAN (air, natural)Position of work verticalTransformers ET3SM of the power from 10 to 250 kVA (50 Hz – table 1) andfrom 10 to 720 kVA (60 Hz - table 2) are most frequently produced ones.Marine transformertype ET3SMin casing IP 234Figure 1Figure 2Dimensions sketchof ET3SM

Table 1Technical parameters of three-phasemarine transformers with frequency 50 HzTypePower Type L B maxH d e f Foundation Weight[kVA] of casing [mm] [mm] [mm] [mm] [mm] [mm]Fig.bolts [kg]ET3SM - 10 10 130ET3SM - 15 15 BG23 - E350MP3 620 520 570 370 475 13 x 18 1 4 x M 12 150ET3SM - 16 16 150ET3SM - 20 20 170ET3SM - 25 25 BG23 - E400MP3 660 570 710 430 505 13 x 18 1 4 x M 12 180ET3SM - 30 30 190ET3SM - 40 40 270BG23 - E440MP3 720 630 785 490 585 17 x 25 1 4 x M 16ET3SM - 50 50 290ET3SM - 63 63 310ET3SM - 100 100 460ET3SM - 115 115 BG23 - E550MP3 870 705 845 590 660 17 x 25 1 4 x M 16 550ET3SM - 120 120 560ET3SM - 125 125 590ET3SM - 130 130 680BG23 - E580MP3 980 780 970 720 725 17 x 25 2 8 x M 16ET3SM - 150 150 710ET3SM - 160 160 760ET3SM - 200 200 1050BG23 - E700MP3 1130 820 1100 760 765 17 x 25 2 8 x M 16ET3SM - 225 225 1100ET3SM - 250 250 1150MARINE TRANSFORMERS 5Table 2Technical parameters of three-phasemarine transformers with frequency 60 HzTypeFig.Power Type L B maxH d e f Foundation Weight[kVA] of casing [mm] [mm] [mm] [mm] [mm] [mm] bolts [kg]ET3SM - 10 10 120ET3SM - 15 15 BG23 - E350MP3 620 520 570 370 475 13 x 18 1 4 x M 12 135ET3SM - 16 16 135ET3SM - 20 20 180ET3SM - 25 25 BG23 - E400MP3 660 570 710 430 505 13 x 18 1 4 x M 12 190ET3SM - 30 30 200ET3SM - 40 40 260ET3SM - 50 50 BG23 - E440MP3 720 630 785 490 585 17 x 25 1 4 x M 16 285ET3SM - 63 63 330ET3SM - 100 100 470ET3SM - 115 115 480BG23 - E550MP3 870 705 845 590 660 17 x 25 1 4 x M 16ET3SM - 120 120 490ET3SM - 125 125 500ET3SM - 130 130 650ET3SM - 150 150 BG23 - E580MP3 980 780 970 720 725 17 x 25 2 8 x M 16 680ET3SM - 160 160 710ET3SM - 200 200 950ET3SM - 225 225 980ET3SM - 250 250 BG23 - E700MP3 1130 820 1100 760 765 17 x 25 2 8 x M 16 1030ET3SM - 270 270 1090ET3SM - 280 280 1210ET3SM - 630 630 1990BG23 - E840MP3 1510 1100 1580 860 1030 17 x 27 2 8 x M 16ET3SM - 720 720 2070

The samples of other solutionsfor ship industryThe starting autotransformers of tubular ruddersThe starting autotransformers type EA3RM are used to start the enginesof tubular rudders. Provided the starting autotransformer is used, thesupply voltage during the starting process does not fall below a criticalvalue, thus the operation of automatic devices is not disturbed.These autotransformers work with engines of power from a few to a fewthousand of kW. Voltage level at the taps, the start-up time and allparameters determining work conditions of the machine are preciselydiscussed at the stage of designing .The starting method with the use of a starting autotransformer is usedespecially in big power engines, where the supply current during thestart-up is a crucial parameter. In case of autotransformer the voltagecan be freely lowered for the time of starting with appropriate choice oftransmission gear, so that the supply current does not exceed presetvalue.While choosing transmission gears it must be monitored, if the momentof the engine with lowered voltage is higher that the anti-torque of adriven rudder.The dry type marinestarting autotransformerthe EA3RM COMPACTSafety transformers in shipyard docks6A three-phase safety transformer was designed on shipbuilding industrydemand. ET3oM transformers are designed to supply with safe 42/24 Vvoltage the selected workstations in shipyard docks. Transformers supplydevices and electrical appliances used by repair brigades.Transformers ET3oM of the power of 15 KVA and 20 KVA are producedin naval workmanship in the first protection class. They meet the requirementsof EN 61558 standard. The construction of the transformer, withenhanced mechanical damage resistance, has been adjusted to difficultshipyard conditions. Furthermore a tight casing with protection degree ofIP54 protects the transformer against pollution and humidity.The set of four pieces single phase marine transformersPortale safetytransformertype ET3oM-20 kVAin casing IP 54The fourth, additional single phase transformer is a reserve in case offailure of one of three operating transformers. The set of transformerscan be connected in delta or star.The power of single transformers: from 10 kVA to 100 kVA.The set of single phase marinetransformers 4xET1SM-40 kVA

MARINE TRANSFORMERS7

ELHAND TRANSFORMATORYPL 42-700 Lubliniec, ul. PCK 22phone +48 34 353 17 10+48 34 351 32 20fax +48 34 356 40 03e-mail: info@elhand.plwww.elhand.pl