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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