RIS Resin-Impregnated Synthetic Bushing

Rated Voltage 25 ~ 138 kV (IEEE) 24 ~ 145 kV (IEC)
Rated Current 400 ~ 5,000 A (IEEE) 630 ~ 5,000 A (IEC)
Standard IEC-60137 / IEEE C57.19.01
Insulation Resin-impregnated synthetic
Application Power Transformer
Types Oil-Air (Dry Type)
Housing Silicone composite
Conductor Draw lead / Draw rod / Bottom connected
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RIS Bushings

RIS Resin-Impregnated Synthetic Bushing

ZDVolt’s RIS (Resin-Impregnated Synthetic) bushings utilize advanced synthetic insulation materials impregnated with high-performance resin. This technology combines the maintenance-free advantages of dry-type bushings with enhanced thermal and mechanical properties from synthetic insulation.

Key Specifications

  • Voltage range: 24 kV to 145 kV (IEEE/IEC)
  • Current ratings: 400 A to 5,000 A (IEEE/IEC)
  • Synthetic insulation for improved dielectric performance
  • Completely dry-type — no oil required

Catalog

ZDTRIS Ratings & Dimensions (25-69 kV)

ZDTRIS Ratings & Dimensions (25-69 kV)
Style No. Catalog No. Nominal voltage BIL Rated current Creepage distance Min. Arcing distance Min. (L3) Max. altitude Overall length (L) Length above flange (L2) Length below flange (L1) Min. oil level and CT length (W) Oil end diameter Max. (D1) Type of lead Inner tube diameter （d1） Draw lead length (air side) Bottom terminal Top terminal Head metal part diameter (D2) Flange gasket space Flange
Fig. N R A ​ Inside diameter Max. Outside diameter Min. Holes No. Hole size B.C.
kV kV A mm in mm in m ft mm in mm in mm in mm in mm in ​ mm in mm in ​ mm in ​ mm in mm in mm in mm in No. mm in mm in
ZDTRIS 150-25-400 ESA0250400 25 150 400 780 30.71 300 11.81 2700 8856 1404 55.28 715 28.15 689 27.13 534 21.00 79 3.11 DL 35 1.38 465 18.31 - - - 1.5-12 54.102 2.13 185 7.28 101.6 4.00 158.75 6.25 4 22.352 0.88 184.15 7.25
ZDTRIS 150-25-1200 ESA0251200 25 150 1200 780 30.71 300 11.81 2700 8856 1464 57.64 715 28.15 749 29.49 534 21.00 79 3.11 BC - - - - 1.1 - - 1.5-12 54.102 2.13 185 7.28 101.6 4.00 158.75 6.25 4 22.352 0.88 184.15 7.25
ZDTRIS 150-25-2000 ESA0252000 25 150 2000 780 30.71 300 11.81 2700 8856 1460 57.48 660 25.98 800 31.50 534 21.00 92 3.62 BC - - - - 1.2 - - 1.5-12 63.5 2.50 185 7.28 101.6 4.00 158.75 6.25 4 22.352 0.88 184.15 7.25
ZDTRIS 150-25-3000 ESA0253000 25 150 3000 780 30.71 300 11.81 2700 8856 1470 57.87 670 26.38 800 31.50 534 21.00 114 4.49 BC - - - - 1.3 - - 2.0-12 76.2 3.00 210 8.27 139.7 5.50 184.15 7.25 4 22.352 0.88 209.55 8.25
ZDTRIS 150-25-5000 ESA0255000 25 150 5000 780 30.71 300 11.81 2700 8856 1568 61.73 730 28.74 838 32.99 534 21.00 140 5.51 BC - - - - 1.4 - - 4.0-12 101.6 4.00 230 9.06 190.5 7.50 234.95 9.25 6 22.352 0.88 260.35 10.25
ZDTRIS 200-34.5-400 ESA0340400 34.5 200 400 1076 42.36 400 15.75 2700 8856 1555 61.22 815 32.09 740 29.13 534 21.00 79 3.11 DL 35 1.38 565 22.24 - - - 1.5-12 54.102 2.13 185 7.28 101.6 4.00 158.75 6.25 4 22.352 0.88 184.15 7.25
ZDTRIS 200-34.5-1200 ESA0341200 34.5 200 1200 1076 42.36 400 15.75 2700 8856 1615 63.58 815 32.09 800 31.50 534 21.00 79 3.11 BC - - - - 1.1 - - 1.5-12 54.102 2.13 185 7.28 101.6 4.00 158.75 6.25 4 22.352 0.88 184.15 7.25
ZDTRIS 200-34.5-2000 ESA0342000 34.5 200 2000 1076 42.36 400 15.75 2700 8856 1611 63.43 760 29.92 851 33.50 534 21.00 92 3.62 BC - - - - 1.2 - - 1.5-12 63.5 2.50 185 7.28 101.6 4.00 158.75 6.25 4 22.352 0.88 184.15 7.25
ZDTRIS 200-34.5-3000 ESA0343000 34.5 200 3000 1076 42.36 400 15.75 2700 8856 1621 63.82 770 30.31 851 33.50 534 21.00 114 4.49 BC - - - - 1.3 - - 2.0-12 76.2 3.00 210 8.27 139.7 5.50 184.15 7.25 6 22.352 0.88 234.95 9.25
ZDTRIS 200-34.5-5000 ESA0345000 34.5 200 5000 1076 42.36 400 15.75 2700 8856 1681 66.18 830 32.68 851 33.50 534 21.00 140 5.51 BC - - - - 1.4 - - 4.0-12 101.6 4.00 230 9.06 190.5 7.50 234.95 9.25 6 22.352 0.88 260.35 10.25
ZDTRIS 250-46-400 ESA0460400 46 250 400 1435 56.50 485 19.09 2700 8856 1691 66.57 900 35.43 791 31.14 534 21.00 79 3.11 DL 35 1.38 650 25.59 - - - 1.5-12 54.102 2.13 185 7.28 101.6 4.00 158.75 6.25 4 22.352 0.88 209.55 8.25
ZDTRIS 250-46-1200 ESA0461200 46 250 1200 1435 56.50 485 19.09 2700 8856 1751 68.94 900 35.43 851 33.50 534 21.00 79 3.11 BC - - - - 1.1 - - 1.5-12 54.102 2.13 185 7.28 101.6 4.00 158.75 6.25 4 22.352 0.88 209.55 8.25
ZDTRIS 250-46-2000 ESA0462000 46 250 2000 1435 56.50 485 19.09 2700 8856 1757 69.17 855 33.66 902 35.51 534 21.00 92 3.62 BC - - - - 1.2 - - 1.5-12 63.5 2.50 185 7.28 101.6 4.00 158.75 6.25 4 22.352 0.88 209.55 8.25
ZDTRIS 250-46-3000 ESA0463000 46 250 3000 1435 56.50 485 19.09 2700 8856 1767 69.57 865 34.06 902 35.51 534 21.00 114 4.49 BC - - - - 1.3 - - 2.0-12 76.2 3.00 210 8.27 139.7 5.50 184.15 7.25 6 22.352 0.88 234.95 9.25
ZDTRIS 250-46-5000 ESA0465000 46 250 5000 1435 56.50 485 19.09 2700 8856 1855 73.03 915 36.02 940 37.01 534 21.00 140 5.51 BC - - - - 1.4 - - 4.0-12 101.6 4.00 230 9.06 190.5 7.50 234.95 9.25 6 22.352 0.88 260.35 10.25
ZDTRIS 350-69-400 ESA0690400 69 350 400 2155 84.84 700 27.56 2700 8856 2017 79.41 1125 44.29 892 35.12 534 21.00 115 4.53 DL 48 1.89 875 34.45 - - - 1.5-12 54.102 2.13 210 8.27 152.4 6.00 209.55 8.25 6 22.352 0.88 234.95 9.25
ZDTRIS 350-69-1200 ESA0691200 69 350 1200 2155 84.84 700 27.56 2700 8856 2077 81.77 1125 44.27 952 37.50 534 21.00 115 4.53 BC - - - - 1.1 - - 1.5-12 54.102 2.13 210.058 8.27 152.4 6.00 209.55 8.25 6 22.352 0.88 234.95 9.25
ZDTRIS 350-69-2000 ESA0692000 69 350 2000 2155 84.84 700 27.56 2700 8856 2068 81.42 1064.7 41.92 1003.3 39.50 534 21.00 125.984 4.96 BC - - - - 1.2 - - 1.5-12 63.5 2.50 230 9.06 152.4 6.00 209.55 8.25 6 22.352 0.88 234.95 9.25
ZDTRIS 350-69-3000 ESA0693000 69 350 3000 2155 84.84 700 27.56 2700 8856 2078 81.81 1074.7 42.31 1003.3 39.50 534 21.00 126 4.96 BC - - - - 1.3 - - 2.0-12 76.2 3.00 230 9.06 177.8 7.00 234.95 9.25 6 22.352 0.88 260.35 10.25
ZDTRIS 350-69-5000 ESA0695000 69 350 5000 2155 84.84 700 27.56 2700 8856 2158 84.96 1154.7 45.46 1003.3 39.50 534 21.00 158 6.22 BC - - - - 1.4 - - 4.0-12 101.6 4.00 285 11.22 254 10.00 323.85 12.75 6 31.75 1.25 361.95 14.25

ZDTRIS Ratings & Dimensions (115-138 kV)

ZDTRIS Ratings & Dimensions (115-138 kV)
Style No. Catalog No. Nominal voltage BIL Rated current Creepage distance Min. Arcing distance Min. (L3) Max. altitude Overall length (L) Length above flange (L2) Length below flange (L1) Min. oil level and CT length (W) Oil end diameter Max. (D1) Type of lead Inner tube diameter Min.（d1） Draw lead length (air side) Bottom terminal Top terminal Head metal part diameter (D2) Flange gasket space Flange
Fig. N R A Inside diameter Max. Outside diameter Min. Holes No. Hole size B.C.
kV kV A mm in mm in m ft mm in mm in mm in mm in mm in ​ mm in mm in ​ mm in ​ mm in mm in mm in mm in No. mm in mm in
ZDTRIS 550-115-800 ESA1150800 115 550 800 3585 141.14 1100 43.31 2400 7874 2657 104.61 1564.8 61.61 1092.2 43.00 584.2 23.00 140 5.51 DL 42 1.65 1320 51.97 - - - 1.5-12 50.8 2.00 230 9.06 250.952 9.88 301.752 11.88 6 31.75 1.25 336.55 13.25
ZDTRIS 550-115-1200 ESA1151200 115 550 1200 3585 141.14 1100 43.31 2400 7874 2657 104.61 1564.8 61.61 1092.2 43.00 584.2 23.00 140 5.51 BC - - - - 2.1 - - 1.5-12 50.8 2.00 230 9.06 250.952 9.88 301.752 11.88 6 31.75 1.25 336.55 13.25
ZDTRIS 550-115-2000 ESA1152000 115 550 2000 3585 141.14 1100 43.31 2400 7874 2597 102.24 1504.8 59.24 1092.2 43.00 584.2 23.00 145 5.71 BC - - - - 2.2 - - 1.5-12 63.5 2.50 230 9.06 250.952 9.88 301.752 11.88 6 31.75 1.25 336.55 13.25
ZDTRIS 550-115-3000 ESA1153000 115 550 3000 3585 141.14 1100 43.31 2400 7874 2607 102.64 1514.8 59.64 1092.2 43.00 584.2 23.00 145 5.71 BC - - - - 2.2 - - 2.0-12 76.2 3.00 230 9.06 250.952 9.88 301.752 11.88 6 31.75 1.25 336.55 13.25
ZDTRIS 550-115-5000 ESA1155000 115 550 5000 3585 141.14 1100 43.31 2400 7874 2732 107.56 1639.8 64.56 1092.2 43.00 584.2 23.00 190 7.48 BC - - - - 2.2 - - 4.0-12 101.6 4.00 285 11.22 250.952 9.88 301.752 11.88 6 31.75 1.25 336.55 13.25
ZDTRIS 650-138-800 ESA1380800 138 650 800 4310 169.69 1250 49.21 2100 6888 2913 114.69 1725 67.94 1188 46.75 584.2 23.00 140 5.51 DL 42 1.65 1480 58.27 - - - 1.5-12 50.8 2.00 230 9.06 276.352 10.88 327.152 12.88 6 31.75 1.25 361.95 14.25
ZDTRIS 650-138-1200 ESA1381200 138 650 1200 4310 169.69 1250 49.21 2100 6888 2913 114.69 1725 67.94 1188 46.75 584.2 23.00 140 5.51 BC - - - - 2.1 - - 1.5-12 50.8 2.00 230 9.06 276.352 10.88 327.152 12.88 6 31.75 1.25 361.95 14.25
ZDTRIS 650-138-2000 ESA1382000 138 650 2000 4310 169.69 1250 49.21 2100 6888 2853 112.32 1665 65.57 1188 46.75 584.2 23.00 145 5.71 BC - - - - 2.2 - - 1.5-12 63.5 2.50 230 9.06 276.352 10.88 327.152 12.88 6 31.75 1.25 361.95 14.25
ZDTRIS 650-138-3000 ESA1383000 138 650 3000 4310 169.69 1250 49.21 2100 6888 2863 112.72 1675 65.97 1188 46.75 584.2 23.00 145 5.71 BC - - - - 2.2 - - 2.0-12 76.2 3.00 230 9.06 276.352 10.88 327.152 12.88 6 31.75 1.25 361.95 14.25
ZDTRIS 650-138-5000 ESA1385000 138 650 5000 4310 169.69 1250 49.21 2100 6888 2978 117.24 1790 70.49 1188 46.75 584.2 23.00 190 7.48 BC - - - - 2.2 - - 4.0-12 101.6 4.00 285 11.22 276.352 10.88 327.152 12.88 6 31.75 1.25 361.95 14.25

Dimension Drawings

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