Why EI transformers are often chosen over core-type core constructions such as U-core, C-core, or L-core? These are presumably more efficient, due to having more surface area covered in winding (even if less than toroidal). They seem to have the same construction advantages of EI transformers, such as being wound on bobbins before the core is assembled, mounting methods which are almost as convenient as EI, and laminations for some designs can be cut from a rectangular sheet without significant waste (like EI-cores and toroidal cores). Also, the air gaps reduce the effects of saturation.
Introduction:
Single phase EI core is made by the silicon steel strip. The model of EI lamination in standard sizes is from
EI-30 to EI-360.The gap sizes of transformer lamination core can be customized.
Catalogue:
Type | a | b | c | d | e | holes | aperture |
EI- 28 | 28 | 4 | 6 | 8 | 17 | ||
EI-35 | 35 | 5 | 7.5 | 10 | 19.5 | ||
EI-41 | 41 | 6 | 8 | 13 | 21 | ||
EI-42 | 42 | 7 | 7 | 7 | 14 | ||
EI-48 | 48 | 8 | 8 | 16 | 24 | ||
EI-50 | 50 | 8 | 9 | 16 | 25.5 | ||
EI-57 | 57 | 9.5 | 9.5 | 19 | 28.5 | 4 | 4 |
EI-60 | 60 | 10 | 10 | 20 | 30 | 4 | 5 |
EI-66 | 66 | 11 | 11 | 22 | 33 | 4 | 4 |
EI-75 | 75 | 12.5 | 12.5 | 25 | 37.5 | 4 | 5.5 |
EI-76.2 | 76.2 | 12.7 | 12.7 | 25.4 | 38.1 | 4 | 5 |
EI-78 | 78 | 13 | 13 | 26 | 39 | 4 | 5 |
EI-84 | 84 | 14 | 14 | 28 | 41 | 4 | 6 |
EI-85.8 | 85.8 | 14.3 | 14.3 | 28.6 | 42.9 | 4 | 5 |
EI-96 | 96 | 16 | 16 | 32 | 48 | 4 | 6 |
EI-105 | 105 | 17.5 | 17.5 | 35 | 52.5 | 4 | 6 |
EI-108 | 108 | 18 | 18 | 36 | 54 | 4 | 5.5 |
EI-114 | 114 | 19 | 19 | 38 | 57 | 4 | 6 |
EI-120 | 120 | 20 | 20 | 40 | 60 | 4 | 7 |
EI-126 | 126 | 21 | 21 | 42 | 63 | 4 | 7 |
EI-133.2 | 133.2 | 22.2 | 22.2 | 44.4 | 66.6 | 4 | 7 |
EI-150 | 150 | 25 | 25 | 50 | 75 | 4 | 8 |
EI-152.4 | 152.4 | 25.4 | 25.4 | 50.8 | 76.2 | 4 | 8 |
EI-162 | 162 | 27 | 27 | 54 | 81 | 4 | 10 |
EI-168 | 168 | 28 | 28 | 50 | 84 | 4 | 10 |
EI-171 | 171 | 28.5 | 28.5 | 57 | 85.5 | 4 | 10 |
EI-180 | 180 | 30 | 30 | 60 | 90 | 4 | 10 |
EI-190.5 | 190.5 | 31.75 | 31.75 | 63.5 | 95.25 | 4 | 10 |
EI-192 | 192 | 32 | 32 | 64 | 96 | 4 | 10 |
EI-210 | 210 | 35 | 35 | 70 | 105 | 4 | 10 |
EI-228 | 228 | 38 | 38 | 76 | 114 | 4 | 10 |
EI-240 | 240 | 40 | 40 | 80 | 120 | 4 | 10 |
EI-254 | 254 | 48 | 55 | 48 | 164 | 4 | 12 |
EI-270 | 270 | 45 | 45 | 90 | 135 | 4 | 12 |
EI-228 | 228 | 38 | 38 | 76 | 114 | 4 | 10 |
EI-300 | 300 | 50 | 50 | 100 | 150 | 4 | 12 |
EI-360 | 360 | 60 | 60 | 120 | 180 | 4 | 12 |
Type | a | b | c | d | e | holes | aperture(Φ) |
UI-20 | 60 | 20 | 20 | 60 | 4 | 6 | |
UI-22 | 66 | 22 | 22 | 66 | 4 | 6,8 | |
UI-25 | 75 | 25 | 25 | 75 | 4 | 6,8 | |
UI-27 | 81 | 27 | 27 | 81 | 4 | 6,8 | |
UI-28 | 84 | 28 | 28 | 84 | 4 | 8 | |
UI-30 | 90 | 30 | 30 | 90 | 4 | 8 | |
UI-32 | 96 | 32 | 32 | 96 | 4 | 8 | |
UI-35 | 105 | 35 | 35 | 105 | 4 | 8 | |
UI-38 | 114 | 38 | 38 | 114 | 4 | 8 | |
UI-40 | 120 | 40 | 40 | 120 | 4 | 10 | |
UI-44 | 132 | 44 | 44 | 132 | 4 | 8,10 | |
UI-45 | 135 | 45 | 45 | 135 | 4 | 10 | |
UI-50 | 150 | 50 | 50 | 150 | 4 | 8,10 | |
UI-60 | 180 | 60 | 60 | 180 | 4 | 10,12 | |
UI-70 | 210 | 70 | 70 | 210 | 4 | 13 | |
UI-80 | 240 | 80 | 80 | 240 | 4 | 14 | |
UI-90 | 270 | 90 | 90 | 270 | 4 | 14 | |
UI-100 | 300 | 100 | 100 | 300 | 4 | 16 |
Type | a | b | c | d | e | Holes | Aperture(Φ) |
3PEI-17.5 | 87.5 | 17.5 | 17.5 | 17.5 | 52.5 | 4 | 6 |
3PEI-20 | 100 | 20 | 20 | 20 | 50 | 6 | 6 |
3PEI-20* | 100 | 20 | 20 | 20 | 60 | 4,6 | 6 |
3PEI-22 | 110 | 22 | 22 | 22 | 66 | 4 | 8 |
3PEI-22.2 | 122 | 22 | 28 | 22.2 | 61 | 4 | 6 |
3PEI-25 | 125 | 25 | 25 | 25 | 75 | 4 | 8 |
3PEI-27 | 135 | 27 | 27 | 27 | 81 | 4 | 8 |
3PEI-28 | 140 | 28 | 28 | 28 | 84 | 4 | 8 |
3PEI-29 | 145 | 29 | 29 | 29 | 72.5 | 4 | 8 |
3PEI-30 | 150 | 30 | 30 | 30 | 90 | 6 | 7 |
3PEI-30.5 | 152 | 30.5 | 30.5 | 30.5 | 76.25 | 6 | 6 |
3PEI-32 | 160 | 32 | 32 | 32 | 80 | 4 | 8 |
3PEI-32* | 160 | 32 | 32 | 32 | 96 | 4 | 8 |
3PEI-35 | 175 | 35 | 35 | 35 | 105 | 4 | 8 |
3PEI-36 | 180 | 36 | 36 | 36 | 90 | 6 | 8 |
3PEI-38 | 190 | 38 | 38 | 38 | 95 | 4,6 | 8,10.5 |
3PEI-38* | 190 | 38 | 38 | 38 | 114 | 6 | 8 |
3PEI-40 | 200 | 40 | 40 | 40 | 100 | 4 | 10.5 |
3PEI-40* | 200 | 40 | 40 | 40 | 120 | 4,6 | 10 |
3PEI-44 | 220 | 44 | 44 | 44 | 132 | 6 | 8,10.5,12.5 |
3PEI-45 | 225 | 45 | 45 | 45 | 135 | 4 | 10 |
3PEI-50 | 250 | 50 | 50 | 50 | 150 | 4,6 | 8,10.5 |
3PEI-56 | 280 | 56 | 56 | 56 | 168 | 4 | 12 |
3PEI-60 | 300 | 60 | 60 | 60 | 180 | 6 | 12 |
3PEI-61* | 288 | 61.3 | 52 | 61.3 | 144 | 4,6 | 12 |
3PEI-61 | 305 | 61 | 61 | 61 | 152.5 | 4,6 | 14 |
3PEI-70 | 350 | 70 | 70 | 70 | 210 | 6 | 13 |
3PEI-80 | 400 | 80 | 80 | 80 | 240 | 6 | 14 |
3PEI-90 | 450 | 90 | 90 | 90 | 270 | 6 | 14 |
3PEI-100 | 500 | 100 | 100 | 100 | 300 | 6 | 16 |
3PEI-120 | 600 | 120 | 120 | 120 | 320 | 6 | 16 |
Company information:
Jiangyin Centersky was established in 2000. Main business is manufacturing silicon steel EI lamination, UI lamination, cutting lamination.
Our capacity is 15000mt per year. We have 15 years' export experience.
FAQ:
1. Q: Can I get some samples?
A: Yes, sample order is available for quality checking and market test.
1-10kg of sample is free.
2. Q: What's the delivery time?
A: Sample order needs 2-3 days. Formal order needs 8-15 days.
3. Q: What's your payment terms?
A: We usually accept T/T at sight as the main payment terms, and other payment can also be negotiated.
4. Q: Do you have the prodcts in stock?
A: Yes, we will keep some general ones in stock.
5. Q: Can I mix different models in one container?
A: Yes, different models can be mixed up.