Valjaonica Femod

Elements for energy transformers exit connections

FEMOD manufactures outer contact elements of distributive and energetic transformers produced under strict requirements concerning chemical composition, mechanical properties, quality of all, and especially contact surfaces, size tolerances, etc. Production assortment comprises sets of contact parts consisting of threaded rods, caps, flags, washers, nuts and rings for all currents from 250 A up to 5000 A. All parts are manufactured in complete accordance with DIN 42 530 or EN 50 386 standards, or other norms, documentation or special requirements of the customer.

Standard transformer connections

EN 50 386

Elements for energy transformers exit connections - EN 50 386
Size 1-3 (250 to 630A)
Elements for energy transformers exit connections - EN 50 386
Size 4-8 (1250 to 5000A)
Standard sizes acc.to EN 50 386 (mm)
Size 1 2 3 4 5 6 7 8
Ir (A) 250 250a 630 1 250 2 000 3 150 4 000 5 000
l1 max. 138 160 178 200 240 250 300 310
l2 min. 30 30 30 35 35 35 40 40
l3 min. 40 40 65 70 90 90 110 110
t max 6 6 6 6 10 10 10 10
d1 M12 M12 M20 M30x2 M42x3 M48x3 M55x3 M64x3
d2 max. 56 56 70 90 104 125 160 160
d3+20 28 28 45 56 70 90 118 118
d4 max. 60 60 85 110 125 150 180 180
d5 max. 56 70 70 90 104 125 180 180
a) The type with extended creeping currents.

DIN 42 530

Elements for energy transformers exit connections - DIN 42 530
250A to 630A
Elements for energy transformers exit connections - DIN 42 530
1000A to 3150A
Standard sizes acc.to DIN 42 530 (mm)
Type DT 250 DT 630 DT 1000 DT 2000 DT 3150
a 138 178 263 340 372
b 68 82 60 65 70
c 4 - 8 4 - 8 4 - 8 6 - 10 6 - 10
d1 M 12 M 20 M30 x 2 M42 x 3 M48 x 3
d2 28 40 56 70 80
d3 28 45 56 70 90
d4 60 85 110 125 150
d5 50 70 90 104 125

Elements for energy transformers exit connections