STAROIP 25 – 500 kVOIP Transformer Bushings IEEE Standard

siemens.com/energy-management

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1 Terminal

2 Oil filling

3 Insulator

4 Active part

5 Flange

6 Oil-side end

STAROIP – Taking up the challengeDue to increased in-feed from renewable energy and more severe cycling loads higher requirements for transformer bushings exist.

STAROIP is the new generation of OIP (Oil Impregnated Paper) condenser bushing, designed and manufactured to satisfy even the most critical service conditions and cycling loads.

The industry-wide issue of copper migration was also considered in the design and testing.

The STAROIP series complies with international standards, and has been especially designed and tested according to IEEE C57.19.01-2004.

Our long term experience in transformers and bushings are the basis for a unique design that meets your transformer and reactor applications.

DesignThe fine capacitance graded core is wound onto the winding support inserting alumi-num foils to control the electrical field both radially and axially.

The head and flange consist of a weather resistant aluminum alloy. All O-ring seals are in a self-contained chamber and are made of temperature resistant elastomers.

Insulating OilThe bushing is filled with mineral oil as a part of the insulation.

The oil used in STAROIP bushings has a very low affinity of solubilizing copper, therefore the copper migration phenomenon into the insulation is avoided.

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STAROIP – an OIP insulated bushing designed for the new challenges in the transformer industry

STAROIP – Unique design• New market requirements and

industry-wide issues considered• Oil volume compensation with

stainless bellow• Proven materials with long-term

experience• Rigorous test program performed

to simulate real life conditions way beyond IEEE standard requirements

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Design features• Stainless steel bellows in the bushing head are

an advanced solution ensuring correct oil volume compensation, without overpressure / low pressure inside the bushing and eliminating the presence of gas in contact with the insulating oil. This solution replaces the common technology for oil volume compensation available on the market, which consists of a nitrogen cushion

• Stainless steel material used for bellows, in order to ensure the maximum reliability during the bushing’s lifetime

• Bellows are used and proven in other high-voltage applications such as Instrument transformers

• Superior corrosion proof resistance in severe ambient conditions

Basic characteristics• Air side insulator: Porcelain cemented into the flange

for increased cantilever withstand capability• Oil side epoxy insulator providing high impact

resistance and reduced size• Embedded end shield in the epoxy insulator eliminates

external shielding in draw lead applications up to 230 kV and provides greater internal clearances

• Horizontal transportation and storage possible• Draw lead adapters to allow replacement

of old draw lead bushings without modification of the existing stud & cable

• Standard creepage distance of 44 mm/kV (heavy pollution) USCD as per IEEE C57.19.100-2012 and 54 mm/kV (extra heavy pollution) available for ratings up to 230 kV Flange detail: test and voltage tap

Stainless steel bellows assembly

STAROIP – Your benefits• Solution also for cycling loading conditions

and for renewable energy applications• Maximum reliability due to special design,

rigorous testing and use of proven materials• Constant oil pressure, i.e. bushings operate

at same oil pressure as during routine test• More robust electrical design validated by highest

requirements of IEEE and IEC standards• Bellow design allows transportation, storage

and installation in different positions• High interchangeability with existing IEEE designs

makes them suitable for many retrofitting cases

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Test tapSTAROIP – IEEE bushings rated 69 kV and below are provided with a test tap. This tap is usually grounded and is intended for measurement of power factor, capacitance from conductor to tap, as well as offering the possibility to connect to an on-line monitoring system. Since the capacitance from tap to ground is not controlled, the tap is not intended for use as a voltage divider during normal operation.

Bottom terminals according to IEEE Std. C57.19.01-2000

Additional terminals available

Voltage tapBushings with rated voltage starting from 115 kV and above are provided with a voltage tap as required by IEEE Std. C57.19.01-2000. Under normal operation the tap cover is installed and the tap is grounded. When opening the cap, it’s possible to connect the bushing to a monitoring device.

Oil sampling plugThe oil sampling valve is available on all voltage levels at the flange position. The plug allows all mainte-nance operations to be performed as described in the instruction manual.

Embedded shield

Ø 9/16" holes (x4)

1¾"

1¾"

Ø 9/16" holes (x2)

1¾"

R4"

Ø 8¼"

½"-13 (x8) ¾" DEEP (6.75" BCD) holes

Ø 8¼"

½"-13 (x8) ¾" DEEP (6.75" BCD) holes

Removable conductor

Static shield

Large variety of bottom terminals

Taps designed for different requirements

Fig. 2.4

Fig. 3.5

Fig. 2.5

Fig. 3.6

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Rigorous testing for maximum lifetime reliability

The new STAROIP condenser bushing with OIP active part is tested with stringent requirements: Type tests performed as per IEEE Std. C57.19.00-2004, but at highest electric values between IEEE and IEC

Additional special tests

1. Temperature cycle tests under operating voltageBushing under permanent operating voltage with simultaneous application of thermal cycling, to reproduce the severe cycling load conditions.

2. Mechanical withstand tests for bellows (> 10.000 full cycles)– Cycles are repeated until the

tightness is broken– Systematic tests for every bellow

design

3. Transportation tests as per ASTM D4169-01, including impact hazard and shake table test– Standard practice for performance

testing of shipping, containers and systems

– Tightness tests and routine electrical measurements repeated as acceptance criteria

Electrical characteristics

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kV kV kV A kV kV kV in (mm) in (mm) ft (m) lb (kg) in (mm) in (mm) in (mm) in (mm) in (mm) in (mm) in (mm) in (mm)

STAROIP 150-25-800 E21 25 150 16 800 Draw Lead 60 50 NA 30.7 (780) 9.25 (235) 3300 (1000) 84 (38) 57.1 (1450.5) 27.5 (698.5) 21 (534) 3.15 (80) 4 (102) 6.25 (159) NA 1.5-12UNF-2A × 2.125 4 × ø0.875 (22) 7.25 (184)

STAROIP 150-25-2000 E21 25 150 16 2000 Bottom 60 50 NA 30.7 (780) 9.25 (235) 3300 (1000) 165 (77) 61.57 (1564) 33.5 (851) 21 (534) 3.94 (100) 4 (102) 6.25 (159) Fig. 2.4 1.5-12UNF-2A × 2.5 4 × ø0.875 (22) 7.25 (184)

STAROIP 150-25-3000 E21 25 150 16 3000 Bottom 60 50 NA 30.7 (780) 9.25 (235) 3300 (1000) 167 (77) 61.57 (1564) 33.5 (851) 21 (534) 3.94 (100) 6.25 (159) 8.25 (210) Fig. 2.5 2-12UNF-2A × 3 6 × ø0.875 (22) 9.25 (235)

STAROIP 200-34.5-800 E21 34.5 200 22 800 Draw Lead 80 75 NA 42.4 (1076) 13.4 (340) 3300 (1000) 99 (45) 62.25 (1581) 28.5 (724) 21 (534) 3.15 (80) 4 (102) 6.25 (159) NA 1.5-12UNF-2A × 2.125 4 × ø0.875 (22) 7.25 (184)

STAROIP 200-34.5-2000 E21 34.5 200 22 2000 Bottom 80 75 NA 42.4 (1076) 13.4 (340) 3300 (1000) 185 (84) 66 (1669) 33.5 (851) 21 (534) 3.94 (100) 4 (102) 6.25 (159) Fig. 2.4 1.5-12UNF-2A × 2.5 4 × ø0.875 (22) 7.25 (184)

STAROIP 200-34.5-3000 E21 34.5 200 22 3000 Bottom 80 75 NA 42.4 (1076) 13.4 (340) 3300 (1000) 185 (84) 66 (1669) 33.5 (851) 21 (534) 3.94 (100) 6.25 (159) 8.25 (210) Fig. 2.5 2-12UNF-2A × 3 6 × ø0.875 (22) 9.25 (235)

STAROIP 350-69-800 E21 69 350 44 800 Draw Lead 160 140 NA 84.7 (2151) 24 (610) 3300 (1000) 68 (149) 78 (1982,5) 34.5 (876) 21 (534) 3.94 (100) 6 (152) 8.25 (210) NA 1.5-12UNF-2A × 2.125 6 × ø0.875 (22) 9.25 (235)

STAROIP 350-69-2000 E21 69 350 44 2000 Bottom 160 140 NA 84.7 (2151) 24 (610) 3300 (1000) 287 (130) 84.29 (2141) 39.5 (1003) 21 (534) 5.12 (130) 6 (152) 8.25 (210) Fig. 2.4 1.5-12UNF-2A × 2.5 6 × ø0.875 (22) 9.25 (235)

STAROIP 350-69-3000 E21 69 350 44 3000 Bottom 160 140 NA 84.7 (2151) 24 (610) 3300 (1000) 287 (130) 84.29 (2141) 39.5 (1003) 21 (534) 5.12 (130) 7 (178) 9.25 (235) Fig. 2.5 2-12UNF-2A × 3 6 × ø0.875 (22) 10.25 (260.4)

STAROIP 550-115-800 E23 115 550 88 800 Draw Lead 260 230 NA 141.2 (3586) 41.34 (1050) 3300 (1000) 305 (140) 108.27 (2750) 40 (1016) 23 (584) 5.12 (130) 9.875 (250.83) 11.875 (301.63) NA 1.5-12UNF-2A × 2 6 × ø1.25 (32) 13.25 (337)

STAROIP 550-115-2000 E23 115 550 88 2000 Bottom 260 230 NA 141.2 (3586) 41.34 (1050) 3300 (1000) 375 (170) 111.2 (2825) 43 (1092) 23 (584) 5.9 (150) 9.875 (250.83) 11.875 (301.63) Fig. 3.5 2-12UNF-2A × 2.5 6 × ø1.25 (32) 13.25 (337)

STAROIP 550-115-3000 E23 115 550 88 3000 Bottom 260 230 NA 141.2 (3586) 41.34 (1050) 3300 (1000) 618 (280) 115.95 (2945) 43 (1092) 23 (584) 7.5 (190) 9.875 (250.83) 11.875 (301.63) Fig. 3.5 3-12UNF-2A × 3 6 × ø1.25 (32) 13.25 (337)

STAROIP 650-138-800 E23 138 650 88 800 Draw Lead 310 275 NA 169 (4302) 49.2 (1250) 3300 (1000) 330 (150) 119.85 (3044) 43.75 (1111) 23 (584) 5.12 (130) 10.875 (276) 12.875 (327) NA 1.5-12UNF-2A × 2 6 × ø1.25 (32) 14.25 (362)

STAROIP 650-138-2000 E23 138 650 88 2000 Bottom 310 275 NA 169 (4302) 49.2 (1250) 3300 (1000) 420 (190) 122.88 (3121) 46.75 (1188) 23 (584) 5.9 (150) 10.875 (276) 12.875 (327) Fig. 3.5 1.5-12UNF-2A × 2.5 6 × ø1.25 (32) 14.25 (362)

STAROIP 650-138-3000 E23 138 650 88 3000 Bottom 310 275 NA 169 (4302) 49.2 (1250) 3300 (1000) 682 (310) 124.37 (3159) 46.75 (1188) 23 (584) 7.5 (190) 10.875 (276) 12.875 (327) Fig. 3.5 2-12UNF-2A × 3 6 × ø1.25 (32) 14.25 (362)

STAROIP 750-161-800 E23 161 750 146 800 Draw Lead 365 315 NA 197.6 (5020) 57.5 (1460) 3300 (1000) 550 (250) 134.57 (3418) 47.25 (1200) 23 (584) 6.9 (175) 12.375 (314.33) 14.375 (365.13) NA 1.5-12UNF-2A × 2 8 × ø1.25 (32) 15.75 (400)

STAROIP 750-161-2000 E23 161 750 146 2000 Bottom 365 315 NA 197.6 (5020) 57.5 (1460) 3300 (1000) 650 (295) 136.1 (3457) 50.25 (1276) 23 (584) 7.5 (190) 12.375 (314.33) 14.375 (365.13) Fig. 3.5 2-12UNF-2A × 2.5 8 × ø1.25 (32) 15.75 (400)

STAROIP 750-161-3000 E23 161 750 146 3000 Bottom 365 315 NA 197.6 (5020) 57.5 (1460) 3300 (1000) 760 (345) 139.33 (3539) 50.25 (1276) 23 (584) 7.5 (190) 12.375 (314.33) 14.375 (365.13) Fig. 3.5 3-12UNF-2A × 3 8 × ø1.25 (32) 15.75 (400)

STAROIP 900-230-800 E23 230 900 146 800 Draw Lead 425 350 NA 282.3 (7171) 84.6 (2150) 3300 (1000) 815 (370) 164.25 (4172) 50.25 (1276) 23 (584) 7.9 (200) 17.13 (435) 19.5 (495) NA 1.5-12UNF-2A × 2 12 ø1.25 (32) 21 (533)

STAROIP 900-230-2000 E23 230 900 146 2000 Bottom 425 350 NA 282.3 (7171) 84.6 (2150) 3300 (1000) 902 (410) 164.25 (4172) 50.25 (1276) 23 (584) 8.7 (220) 17.13 (435) 19.5 (495) Fig. 3.5 1.5-12UNF-2A × 2.5 12 ø1.25 (32) 21 (533)

STAROIP 900-230-3000 E23 230 900 146 3000 Bottom 425 350 NA 282.3 (7171) 84.6 (2150) 3300 (1000) 1025 (465) 164.25 (4172) 50.25 (1276) 23 (584) 8.7 (220) 17.13 (435) 19.5 (495) Fig. 3.5 2-12UNF-2A × 3 12 × ø1.25 (32) 21 (533)

STAROIP 1175-345-800 E23 345 1175 220 800 Draw Lead 520 NA 825 373.8 (9496) 94.5 (2400) 3300 (1000) 1220 (555) 179.65 (4563) 51 (1295) 23 (584) 9.25 (235) 17.13 (435) 19.5 (495) Fig. 3.6 1.5-12UNF-2A × 2 12 × ø1.25 (32) 21 (533)

STAROIP 1175-345-2000 E23 345 1175 220 2000 Bottom 520 NA 825 373.8 (9496) 94.5 (2400) 3300 (1000) 1320 (600) 179.65 (4563) 51 (1295) 23 (584) 9.84 (250) 17.13 (435) 19.5 (495) Fig. 3.6 1.5-12UNF-2A × 2.5 12 × ø1.25 (32) 21 (533)

STAROIP 1175-345-3000 E23 345 1175 220 3000 Bottom 520 NA 825 373.8 (9496) 94.5 (2400) 3300 (1000) 1440 (655) 179.65 (4563) 51 (1295) 23 (584) 9.84 (250) 17.13 (435) 19.5 (495) Fig. 3.6 2-12UNF-2A × 3 12 × ø1.25 (32) 21 (533)

STAROIP 1675-500-800 E23 500 1675 318 800 Draw Lead 750 NA 1175 533.4 (13550) 149.6 (3800) 3300 (1000) 2183 (990) 256.97 (6527) 65 (1651) 23 (584) 11.45 (291) 20.51 (527) 23.5 (597) Fig. 3.6 1.5-12UNF-2A × 2 12 × ø1.25 (32) 25 (635)

STAROIP 1675-500-2000 E23 500 1675 318 2000 Bottom 750 NA 1175 533.4 (13550) 149.6 (3800) 3300 (1000) 2304 (1045) 256.77 (6522) 65 (1651) 23 (584) 12.2 (310) 20.51 (527) 23.5 (597) Fig. 3.6 1.5-12UNF-2A × 2.5 12 × ø1.25 (32) 25 (635)

STAROIP 1675-500-3000 E23 500 1675 318 3000 Bottom 750 NA 1175 533.4 (13550) 149.6 (3800) 3300 (1000) 2513 (1140) 256.77 (6522) 65 (1651) 23 (584) 12.2 (310) 20.51 (527) 23.5 (597) Fig. 3.6 2-12UNF-2A × 3 12 × ø1.25 (32) 25 (635)

Dimensions listed in this document are for general reference and may be subject to change. For specific dimensions, refer to the outline drawing.Mounting angle from vertical: 0 to 20°

Mechanical characteristics

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kV kV kV A kV kV kV in (mm) in (mm) ft (m) lb (kg) in (mm) in (mm) in (mm) in (mm) in (mm) in (mm) in (mm) in (mm)

STAROIP 150-25-800 E21 25 150 16 800 Draw Lead 60 50 NA 30.7 (780) 9.25 (235) 3300 (1000) 84 (38) 57.1 (1450.5) 27.5 (698.5) 21 (534) 3.15 (80) 4 (102) 6.25 (159) NA 1.5-12UNF-2A × 2.125 4 × ø0.875 (22) 7.25 (184)

STAROIP 150-25-2000 E21 25 150 16 2000 Bottom 60 50 NA 30.7 (780) 9.25 (235) 3300 (1000) 165 (77) 61.57 (1564) 33.5 (851) 21 (534) 3.94 (100) 4 (102) 6.25 (159) Fig. 2.4 1.5-12UNF-2A × 2.5 4 × ø0.875 (22) 7.25 (184)

STAROIP 150-25-3000 E21 25 150 16 3000 Bottom 60 50 NA 30.7 (780) 9.25 (235) 3300 (1000) 167 (77) 61.57 (1564) 33.5 (851) 21 (534) 3.94 (100) 6.25 (159) 8.25 (210) Fig. 2.5 2-12UNF-2A × 3 6 × ø0.875 (22) 9.25 (235)

STAROIP 200-34.5-800 E21 34.5 200 22 800 Draw Lead 80 75 NA 42.4 (1076) 13.4 (340) 3300 (1000) 99 (45) 62.25 (1581) 28.5 (724) 21 (534) 3.15 (80) 4 (102) 6.25 (159) NA 1.5-12UNF-2A × 2.125 4 × ø0.875 (22) 7.25 (184)

STAROIP 200-34.5-2000 E21 34.5 200 22 2000 Bottom 80 75 NA 42.4 (1076) 13.4 (340) 3300 (1000) 185 (84) 66 (1669) 33.5 (851) 21 (534) 3.94 (100) 4 (102) 6.25 (159) Fig. 2.4 1.5-12UNF-2A × 2.5 4 × ø0.875 (22) 7.25 (184)

STAROIP 200-34.5-3000 E21 34.5 200 22 3000 Bottom 80 75 NA 42.4 (1076) 13.4 (340) 3300 (1000) 185 (84) 66 (1669) 33.5 (851) 21 (534) 3.94 (100) 6.25 (159) 8.25 (210) Fig. 2.5 2-12UNF-2A × 3 6 × ø0.875 (22) 9.25 (235)

STAROIP 350-69-800 E21 69 350 44 800 Draw Lead 160 140 NA 84.7 (2151) 24 (610) 3300 (1000) 68 (149) 78 (1982,5) 34.5 (876) 21 (534) 3.94 (100) 6 (152) 8.25 (210) NA 1.5-12UNF-2A × 2.125 6 × ø0.875 (22) 9.25 (235)

STAROIP 350-69-2000 E21 69 350 44 2000 Bottom 160 140 NA 84.7 (2151) 24 (610) 3300 (1000) 287 (130) 84.29 (2141) 39.5 (1003) 21 (534) 5.12 (130) 6 (152) 8.25 (210) Fig. 2.4 1.5-12UNF-2A × 2.5 6 × ø0.875 (22) 9.25 (235)

STAROIP 350-69-3000 E21 69 350 44 3000 Bottom 160 140 NA 84.7 (2151) 24 (610) 3300 (1000) 287 (130) 84.29 (2141) 39.5 (1003) 21 (534) 5.12 (130) 7 (178) 9.25 (235) Fig. 2.5 2-12UNF-2A × 3 6 × ø0.875 (22) 10.25 (260.4)

STAROIP 550-115-800 E23 115 550 88 800 Draw Lead 260 230 NA 141.2 (3586) 41.34 (1050) 3300 (1000) 305 (140) 108.27 (2750) 40 (1016) 23 (584) 5.12 (130) 9.875 (250.83) 11.875 (301.63) NA 1.5-12UNF-2A × 2 6 × ø1.25 (32) 13.25 (337)

STAROIP 550-115-2000 E23 115 550 88 2000 Bottom 260 230 NA 141.2 (3586) 41.34 (1050) 3300 (1000) 375 (170) 111.2 (2825) 43 (1092) 23 (584) 5.9 (150) 9.875 (250.83) 11.875 (301.63) Fig. 3.5 2-12UNF-2A × 2.5 6 × ø1.25 (32) 13.25 (337)

STAROIP 550-115-3000 E23 115 550 88 3000 Bottom 260 230 NA 141.2 (3586) 41.34 (1050) 3300 (1000) 618 (280) 115.95 (2945) 43 (1092) 23 (584) 7.5 (190) 9.875 (250.83) 11.875 (301.63) Fig. 3.5 3-12UNF-2A × 3 6 × ø1.25 (32) 13.25 (337)

STAROIP 650-138-800 E23 138 650 88 800 Draw Lead 310 275 NA 169 (4302) 49.2 (1250) 3300 (1000) 330 (150) 119.85 (3044) 43.75 (1111) 23 (584) 5.12 (130) 10.875 (276) 12.875 (327) NA 1.5-12UNF-2A × 2 6 × ø1.25 (32) 14.25 (362)

STAROIP 650-138-2000 E23 138 650 88 2000 Bottom 310 275 NA 169 (4302) 49.2 (1250) 3300 (1000) 420 (190) 122.88 (3121) 46.75 (1188) 23 (584) 5.9 (150) 10.875 (276) 12.875 (327) Fig. 3.5 1.5-12UNF-2A × 2.5 6 × ø1.25 (32) 14.25 (362)

STAROIP 650-138-3000 E23 138 650 88 3000 Bottom 310 275 NA 169 (4302) 49.2 (1250) 3300 (1000) 682 (310) 124.37 (3159) 46.75 (1188) 23 (584) 7.5 (190) 10.875 (276) 12.875 (327) Fig. 3.5 2-12UNF-2A × 3 6 × ø1.25 (32) 14.25 (362)

STAROIP 750-161-800 E23 161 750 146 800 Draw Lead 365 315 NA 197.6 (5020) 57.5 (1460) 3300 (1000) 550 (250) 134.57 (3418) 47.25 (1200) 23 (584) 6.9 (175) 12.375 (314.33) 14.375 (365.13) NA 1.5-12UNF-2A × 2 8 × ø1.25 (32) 15.75 (400)

STAROIP 750-161-2000 E23 161 750 146 2000 Bottom 365 315 NA 197.6 (5020) 57.5 (1460) 3300 (1000) 650 (295) 136.1 (3457) 50.25 (1276) 23 (584) 7.5 (190) 12.375 (314.33) 14.375 (365.13) Fig. 3.5 2-12UNF-2A × 2.5 8 × ø1.25 (32) 15.75 (400)

STAROIP 750-161-3000 E23 161 750 146 3000 Bottom 365 315 NA 197.6 (5020) 57.5 (1460) 3300 (1000) 760 (345) 139.33 (3539) 50.25 (1276) 23 (584) 7.5 (190) 12.375 (314.33) 14.375 (365.13) Fig. 3.5 3-12UNF-2A × 3 8 × ø1.25 (32) 15.75 (400)

STAROIP 900-230-800 E23 230 900 146 800 Draw Lead 425 350 NA 282.3 (7171) 84.6 (2150) 3300 (1000) 815 (370) 164.25 (4172) 50.25 (1276) 23 (584) 7.9 (200) 17.13 (435) 19.5 (495) NA 1.5-12UNF-2A × 2 12 ø1.25 (32) 21 (533)

STAROIP 900-230-2000 E23 230 900 146 2000 Bottom 425 350 NA 282.3 (7171) 84.6 (2150) 3300 (1000) 902 (410) 164.25 (4172) 50.25 (1276) 23 (584) 8.7 (220) 17.13 (435) 19.5 (495) Fig. 3.5 1.5-12UNF-2A × 2.5 12 ø1.25 (32) 21 (533)

STAROIP 900-230-3000 E23 230 900 146 3000 Bottom 425 350 NA 282.3 (7171) 84.6 (2150) 3300 (1000) 1025 (465) 164.25 (4172) 50.25 (1276) 23 (584) 8.7 (220) 17.13 (435) 19.5 (495) Fig. 3.5 2-12UNF-2A × 3 12 × ø1.25 (32) 21 (533)

STAROIP 1175-345-800 E23 345 1175 220 800 Draw Lead 520 NA 825 373.8 (9496) 94.5 (2400) 3300 (1000) 1220 (555) 179.65 (4563) 51 (1295) 23 (584) 9.25 (235) 17.13 (435) 19.5 (495) Fig. 3.6 1.5-12UNF-2A × 2 12 × ø1.25 (32) 21 (533)

STAROIP 1175-345-2000 E23 345 1175 220 2000 Bottom 520 NA 825 373.8 (9496) 94.5 (2400) 3300 (1000) 1320 (600) 179.65 (4563) 51 (1295) 23 (584) 9.84 (250) 17.13 (435) 19.5 (495) Fig. 3.6 1.5-12UNF-2A × 2.5 12 × ø1.25 (32) 21 (533)

STAROIP 1175-345-3000 E23 345 1175 220 3000 Bottom 520 NA 825 373.8 (9496) 94.5 (2400) 3300 (1000) 1440 (655) 179.65 (4563) 51 (1295) 23 (584) 9.84 (250) 17.13 (435) 19.5 (495) Fig. 3.6 2-12UNF-2A × 3 12 × ø1.25 (32) 21 (533)

STAROIP 1675-500-800 E23 500 1675 318 800 Draw Lead 750 NA 1175 533.4 (13550) 149.6 (3800) 3300 (1000) 2183 (990) 256.97 (6527) 65 (1651) 23 (584) 11.45 (291) 20.51 (527) 23.5 (597) Fig. 3.6 1.5-12UNF-2A × 2 12 × ø1.25 (32) 25 (635)

STAROIP 1675-500-2000 E23 500 1675 318 2000 Bottom 750 NA 1175 533.4 (13550) 149.6 (3800) 3300 (1000) 2304 (1045) 256.77 (6522) 65 (1651) 23 (584) 12.2 (310) 20.51 (527) 23.5 (597) Fig. 3.6 1.5-12UNF-2A × 2.5 12 × ø1.25 (32) 25 (635)

STAROIP 1675-500-3000 E23 500 1675 318 3000 Bottom 750 NA 1175 533.4 (13550) 149.6 (3800) 3300 (1000) 2513 (1140) 256.77 (6522) 65 (1651) 23 (584) 12.2 (310) 20.51 (527) 23.5 (597) Fig. 3.6 2-12UNF-2A × 3 12 × ø1.25 (32) 25 (635)

Dimensions listed in this document are for general reference and may be subject to change. For specific dimensions, refer to the outline drawing.Mounting angle from vertical: 0 to 20°

STAROIP 150-25-800 E21

CT pocket length (in)Rated current (A)Rated voltage (kV)Lightning impulse voltage 1.2/50 μs (kV)

Type designation – an example of STAROIP product designation

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https://www.energy.siemens.com/us/en/ power-transmission/high-voltage-products/bushings.htm

Article No. EMHP-B10030-00-4AUS TH 263-171133 BR 1217

The technical data presented in this document is based on an actual case or on as-designed parameters, and therefore should not be relied upon for any specific application and does not constitute a performance guarantee for any projects. Actual results are dependent on variable conditions. Accordingly, Siemens does not make representations, warranties, or assur-ances as to the accuracy, currency or completeness of the content contained herein. If requested, we will provide specific technical data or specifications with respect to any customer‘s particular applications. Our company is constantly involved in engineering and development. For that reason, we reserve the right to modify, at any time, the technology and product specifications contained herein.