RIP condenser bushing type SETFt
DesignThe insulating body of the RIP condenser bushing (RIP = Resin
Impregnated Paper) is made of special paper vacuum-impreg-
nated with epoxy resin. During the winding process, conductive
layers made of aluminum foil are inserted between the paper
for grading the electric field. Thanks to their good conductivity,
optimum voltage distribution is guaranteed even in case of
rapid voltage changes.
The insulating body is wound onto the winding support, impregnated
with resin and hardened. It receives its final shape by means of turning.
The RIP insulating body acts as an oil-tight seal to the transformer
in the flange. With a permanently installed current conductor, there
is no transformer oil above the flange, thus eliminating the possibility
of accidents with escaping oil and the consequent risk of fire.
The higher temperature class of RIP gives the bushings of this series
greater thermal reserves. Since it is not oil-filled, there are no tech-
nological constraints with regard to the installation position.
The standard bushing is designed for installation in a position 0 – 30°
from the vertical in accordance with IEC 60137. Other installation
situations are available on request.
The external insulation consists of a composite insulator with silicone
sheds. These are vulcanized on the mechanical support, a high-quality
wound insulating tube made of epoxy resins with glass fiber laminate
structure. This gives the housing not only its high mechanical strength
but also flexibility. The silicone shed insulation endows the bushing
with excellent dirt-repellent characteristics thanks to its hydrophobic
surface and the property of hydrophobic transfer in contamination
layers.
Generally, an alternating shed profile is provided so that the
bushings can also be used in a heavily contaminated environment.
The composite housings are provided at both ends with aluminum
fittings using a special joining technique to ensure a permanent,
gas-tight connection.
The gap between composite insulator and insulating body is filled
with a dry filling of polyurethane elastomer. This ensures a bushing
of absolutely dry construction. By using a special gas foaming process,
a fine-celled elastomer structure is obtained offering an outstanding
combination of permanently elastic yet mechanically strong proper-
ties and high electrical strength. The mechanical bond gives the
bushing a high degree of elasticity combined with good damping
characteristics. As a result, bushings of this type are particularly well
suited for use with extreme mechanical stresses, such as seismic
stresses.
Other advantages of the SETFt bushing:
■ Damage due to incorrect handling or vandalism are avoided
thanks to its impact strength and shock resistance
■ The lower weight of the bushing with composite insulator
simplifies handling and reduces stressing of the transformer
due to its low net mass
■ No dangerous fragments if the housing is damaged by internal
or external factors, no damage to adjacent parts of the substation
and risk to personnel in case of a fault reduced to a minimum
■ Use at very low ambient temperatures
■ Flame-resistant properties
■ Long operational experience: over 40 years
Head and flange consist of a weather-resistant aluminum alloy.
All seals are also designed as O-rings in self-contained chambers
and are made of temperature-resistant elastomers.
All bushings have a test tap. When the cap is screwed in position,
the last layer of the condenser grading is earthed via the contact
spring located in the cap. The built-in, insulated bushing has a
4-mm pin onto which a corresponding, resilient socket can be
plugged for test purposes. All bushings also have two M12 earthing
holes and threaded lifting holes around the flange pitch circle
diameter as standard. Provision is made for transformer venting.
The bushing can be transported and stored in any position.
All bushings are designed to comply with IEC Standard 60137
and tested accordingly. Bushings that comply with IEEE Standard
or other national regulations are available on request.
2 | 3
RIP condenser bushing type SETFt
Connection systemsThe SETFt series offers a large number of different connection options.
A clamping piece is mounted on the top end of the bushing head with
which the conductor or draw lead bolt is fixed in position. A releasable
transverse pin prevents it slipping into the transformer when working
on the clamping device and it also acts as protection against twisting.
Double seals are provided for sealing the bolts. A thin layer of insulation
must be wrapped round the conductor bolt in order to prevent contact
with the central tube of the bushing.
The clamping piece and all screw connections on the entire bushing
are corrosion-resistant. Venting of the central tube is located at the side
under the flange of the clamping piece and can thus be operated
independently of the conductor bolt.
In addition to the draw lead bolt mentioned, it is also possible
to provide a through conductor bolt, for example in case of higher
current requirements. Conductor bolts of this kind are insulated
with respect to the inner wall of the central tube with spacers.
Through conductor bolts can be supplied with a joint, preferably at flange
height or as requested by the customer. In order to be able to pull
the bolt through the central tube, a threaded hole is provided at the front
for screwing in an eyebolt or rod.
Customized modificationsThe types specified in this brochure represent standard versions.
Modifications are possible but may result in price changes or different
delivery times and must therefore be specifically requested.
The technical designs of these bushing types are documented
in comprehensive delivery specifications.
A
C.T.
60°
Insulating electrode with bayonet from HSP
Test voltage [kV]EK1
(Ø 200 x 200) EK2
(Ø 250 x 250) EK3
(Ø 300 x 300) EK4
(Ø 350 x 350) Minimum distance
Um AC1min A [mm] A [mm] A [mm] A [mm] A [mm]
24 55 – – – – 80
36 77 – – – – 90
52 105 – – – – 100
72.5 155 130 150 – – 110
100 205 150 160 – – 130
123 255 170 180 – – 160
145 305 200 210 – – 185
170 355 290 250 – – 210
245 505 420 400 330 – 330
300 505 420 400 330 – 330
362 560 – 450 375 375 340
420 695 – 675 530 510 410
550 750 – 850 650 600 500
550 870 – ■ ■ 800 550
765 970 – ■ ■ ■ 650
800 1075 – ■ ■ ■ 700
Screen electrodesBushings of the type shown in the illustration “Outlet end at the
transformer – with metal plate” must be shielded with an electrode.
The dimensions given in the table above refer to electrodes (EK1 ... EK4)
made of insulating material that can be detached via a bayonet
connection. They can be moved upwards as well as downwards,
and thus allow possible installation of a junction point for the current
conductor.
Bushings of the type shown in the illustration “Outlet end at the
transformer – without metal plate” in the voltage ranges 24 kV
to 170 kV (Um) require no additional shielding. However, with all
bushings of the type shown in the illustration “Outlet end at the
transformer – without metal plate” the gap between the outlet wall
(Ø d2) and the insulated conductor should be about 3 mm, e.g.
by applying corresponding insulation.
The required distance to ground “A” in each case is contained
in the table above. Additional insulating measures or larger distances
may be necessary because of the constraints when installing in the
transformer. The bushing can also be operated with electrodes
and barrier systems not manufactured by HSP. The distance must not
be less than the “Minimum distance A” given in the above table.
■ Additional barriers required
Type series SETFt – Details and dimensions
Recommended installation of screen electrodes
4 | 5
Outlet end at transformer – without metal plate
Dimensions of standard insulating electrodes
ø D9
L8
L7
30
ø D10
L5
L
L1+E
E
L2
L3
s
35L4 150
SW
Test tap
ø d1
ø D
2
ø D
1ø D
6
ø D
5
ø d3
EK1 EK2 EK3 EK4
D9 mm 160 180 198 250
D10 mm 200 250 300 350
L7 mm 200 250 300 350
L8 mm 130 160 170 190
Type series SETFt – Dimensional drawing
Outlet end at transformer – with metal plate
Outlet end at transformer – with electrode
30
ø d1
L5
ø D2
3 threaded holes M10 x 20; 3 x 120°
ø d2
ø d1
ø D2
L1
Bushing type SETFt
Electrical values/dimensions
Description125-24-A
125-24-B
170-36-A
170-36-B
250-52-A
250-52-B
325-73-A
325-73-B
450-100-A
450-100-B
550-123-A
550-123-B
650-145-A
650-145-B
750-170-A
750-170-B
1050-245-A1
1050-245-B1
1050-245-A2
1050-245-B2
1050-300-A
1050-300-B
1175-362-A
1175-362-B
1425-420-A
1425-420-B
1550-420-A
1550-420-B
1675-550-B
1800-550-B
2100-765
2400-800
Highest voltage for equipment
Um kV 24 24 36 36 52 52 72.5 72.5 100 100 123 123 145 145 170 170 245 245 245 245 300 300 362 362 420 420 420 420 550 550 765 800 Um
Max. service voltage: line-ground kV 14 14 21 21 30 30 42 42 58 58 71 71 84 84 98 98 142 142 142 142 173 173 210 210 242 242 242 242 318 318 442 462
Partial discharge level pC < 5 < 5 < 5 < 5 < 5 < 5 < 5 < 5 < 5 < 5 < 5 < 5 < 5 < 5 < 5 < 5 < 5 < 5 < 5 < 5 < 5 < 5 < 5 < 5 < 5 < 5 < 5 < 5 < 5 < 5 < 5 < 5
Power frequency withstand voltage: 50 Hz, 1 min
kV 55 55 77 77 105 105 155 155 205 205 255 255 305 305 355 355 505 505 505 505 505 505 560 560 695 695 750 750 750 870 970 1075
Rated lightning impulse withstand voltage: 1.2/50 μs
kV 125 125 170 170 250 250 325 325 450 450 550 550 650 650 750 750 1050 1050 1050 1050 1050 1050 1175 1175 1425 1425 1550 1550 1675 1800 2100 2400
Rated switching impulse withstand voltage: 250/2500 μs
kV – – – – – – – – – – – – – – – – 750 750 850 850 850 850 950 950 1050 1050 1175 1175 1175 1300 1425 1550
Type test voltages
Rated lightning impulse withstand voltage: 1.2/50 μs negative polarity
kV 125 125 170 170 250 250 325 325 495 495 605 605 715 715 825 825 1155 1155 1155 1155 1155 1155 1293 1293 1568 1568 1705 1705 1843 1980 2310 2640
Chopped-wave impulse voltage negative polarity
kV 151 151 206 206 303 303 393 393 545 545 666 666 787 787 908 908 1271 1271 1271 1271 1271 1271 1422 1422 1724 1724 1876 1876 2027 2178 2541 2904
Rated switching impulse withstand voltage: 250/2500 μs dry negative polarity
kV – – – – – – – – – – – – – – – – 825 825 935 935 935 935 1045 1045 1155 1155 1293 1293 1293 1430 1568 1705
Max. rated current: draw lead bolt Imax A 800 1250 800 1250 800 1250 800 1250 800 1250 800 1250 800 1250 800 1250 800 1250 800 1250 800 1250 800 1250 800 1250 800 1250 1250 1250 1250 1250 Imax
Max. rated current: removable conductor bolt
Imax A 2000 2500 2000 2500 2000 2500 2000 2500 2000 2500 2000 2500 1600 2000 1600 2000 1250 2000 1250 2000 1250 2000 1250 2000 1250 1600 1250 1600 1600 1600 2000 2000 Imax
Min. flashover distance SW mm 274 274 370 370 514 514 706 706 946 946 1138 1138 1330 1330 1522 1522 2432 2434 2866 2866 2866 2866 3250 3250 3730 3730 4354 4354 4690 5170 6514 6802 SW
Creepage distance min. min. mm 790 790 1144 1144 1675 1675 2383 2383 3268 3268 3976 3976 4684 4684 5392 5392 8753 8755 10348 10348 10348 10348 11764 11764 13534 13534 15835 15835 17074 18844 23800 24862 min.
Creepage factor: Cf l/s 2.9 2.9 3.1 3.1 3.3 3.3 3.4 3.4 3.5 3.5 3.5 3.5 3.5 3.5 3.5 3.5 3.6 3.6 3.6 3.6 3.6 3.6 3.6 3.6 3.6 3.6 3.6 3.6 3.9 3.6 3.7 3.7
Cantilever test load N 2000 2000 2000 2000 1600 2500 2000 3150 2000 3150 3150 4000 3150 4000 4000 5000 4000 5000 4000 5000 4000 5000 4000 5000 4000 5000 4000 5000 5000 5000 5000 5000
Creepage distance, referred to Um mm/kV 32.9 32.9 31.8 31.8 32.2 32.2 32.6 32.6 32.7 32.7 32.3 32.3 32.3 32.3 31.7 31.7 35.7 35.7 42.2 42.2 34.5 34.5 32.5 32.5 32.2 32.2 37.7 37.7 31.1 34.3 31.1 31.1
Dimensions D1 mm 105 105 105 130 105 130 130 130 130 150 130 150 150 170 150 170 190 210 190 210 230 230 230 230 230 285 285 285 330 330 420 420 D1
D2 mm 90 120 90 120 90 120 100 120 100 120 100 120 100 120 100 120 120 140 120 140 150 150 150 150 150 150 150 150 150 150 200 200 D2
D3 mm 250 250 250 250 250 250 250 250 250 290 290 290 290 290 290 290 350 350 350 350 400 400 400 400 400 450 450 450 550 550 600 600 D3
D4 mm 290 290 290 290 290 290 290 290 290 335 335 335 335 335 335 335 400 400 400 400 450 450 450 450 450 500 500 500 600 600 650 650 D4
D5 mm 165 165 165 200 165 200 200 200 200 200 200 200 200 238 200 238 200 290 200 290 290 290 290 290 290 380 380 380 500 500 600 600 D5
D6 mm 250 250 250 280 250 280 280 280 280 280 280 280 280 318 280 318 318 368 318 368 368 368 368 368 368 434 434 434 486 486 634 634 D6
L5 mm 75 75 75 75 75 75 75 75 75 90 90 90 90 90 90 90 90 90 90 90 90 90 95 95 95 95 95 95 100 100 120 120 L5
d1 mm 50 69 50 69 50 69 50 69 50 69 50 69 50 69 50 69 50 69 50 69 50 69 50 69 50 69 50 69 69 69 120 120 d1
d2 mm 56 78 56 78 56 78 56 78 65 85 65 85 65 85 65 85 65 85 65 85 65 85 – – – – – – – – – – d2
l1 mm 25 25 25 25 25 25 25 25 50 50 50 50 50 50 50 50 50 50 50 50 50 50 – – – – – – – – – – l1
s mm 15 15 15 15 15 15 15 15 15 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 30 30 30 30 s
i mm 15 15 15 15 15 15 15 15 15 20 20 20 20 15 20 15 20 20 20 20 20 20 20 20 20 20 20 20 25 25 25 25 i
z 8 8 8 8 8 8 8 8 8 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 16 16 16 16 z
a ° 45 45 45 45 45 45 45 45 45 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 22.5 22.5 22.5 22.5 a
Connecting terminal dimensions d3 x L4
mm ≤ 1250 A = Ø 30 x 90; ≤ 1600 A = Ø 42 x 135; ≤ 2500 A = Ø 48 x 135
C.T. accommodation length E mm 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 E
L1 mm 150 150 180 180 195 195 230 230 310 310 350 350 390 390 450 450 620 620 620 620 620 620 690 690 790 790 840 840 890 990 1090 1290 L1
L2 mm 564 564 660 665 804 809 1001 1001 1241 1241 1503 1533 1725 1695 1917 1887 2854 2854 3286 3286 3286 3286 3670 3670 4150 4230 4859 4859 5275 5755 7349 7637 L2
L3 mm 150 150 150 155 150 155 155 155 155 155 155 155 155 155 155 155 185 185 185 185 185 185 185 185 185 185 185 185 260 260 400 400 L3
Total length L mm 714 714 840 845 999 1004 1231 1231 1551 1551 1853 1883 2115 2085 2367 2337 3474 3474 3906 3906 3906 3906 4360 4360 4940 5020 5699 5699 6165 6745 8439 8927 L
C.T. accommodation length E mm 300 300 300 300 300 300 300 300 300 300 300 300 300 300 300 300 300 300 300 300 300 300 300 300 300 300 300 300 300 300 300 300 E
L1 mm 450 450 480 480 495 495 530 530 610 610 650 650 690 690 750 750 920 920 920 920 920 920 990 990 1090 1090 1140 1140 1190 1290 1390 1590 L1
Total length L mm 1014 1014 1140 1145 1299 1304 1531 1531 1851 1851 2153 2183 2415 2385 2667 2637 3774 3774 4206 4206 4206 4206 4660 4660 5240 5320 5999 5999 6465 7045 8739 9227 L
C.T. accommodation length E mm 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 E
L1 mm 750 750 780 780 795 795 830 830 910 910 950 950 990 990 1050 1050 1220 1220 1220 1220 1220 1220 1290 1290 1390 1390 1440 1440 1490 1590 1690 1890 L1
Total length L mm 1314 1314 1440 1445 1599 1604 1831 1831 2151 2151 2453 2483 2715 2685 2967 2937 4074 4074 4506 4506 4506 4506 4960 4960 5540 5620 6299 6299 6765 7345 9039 9527 L
Description125-24-A
125-24-B
170-36-A
170-36-B
250-52-A
250-52-B
325-73-A
325-73-B
450-100-A
450-100-B
550-123-A
550-123-B
650-145-A
650-145-B
750-170-A
750-170-B
1050-245-A1
1050-245-B1
1050-245-A2
1050-245-B2
1050-300-A
1050-300-B
1175-362-A
1175-362-B
1425-420-A
1425-420-B
1550-420-A
1550-420-B
1675-550-B
1800-550-B
2100-765
2400-800
Highest voltage for equipment
Um kV 24 24 36 36 52 52 72.5 72.5 100 100 123 123 145 145 170 170 245 245 245 245 300 300 362 362 420 420 420 420 550 550 765 800 Um
Max. service voltage: line-ground kV 14 14 21 21 30 30 42 42 58 58 71 71 84 84 98 98 142 142 142 142 173 173 210 210 242 242 242 242 318 318 442 462
Partial discharge level pC < 5 < 5 < 5 < 5 < 5 < 5 < 5 < 5 < 5 < 5 < 5 < 5 < 5 < 5 < 5 < 5 < 5 < 5 < 5 < 5 < 5 < 5 < 5 < 5 < 5 < 5 < 5 < 5 < 5 < 5 < 5 < 5
Power frequency withstand voltage: 50 Hz, 1 min
kV 55 55 77 77 105 105 155 155 205 205 255 255 305 305 355 355 505 505 505 505 505 505 560 560 695 695 750 750 750 870 970 1075
Rated lightning impulse withstand voltage: 1.2/50 μs
kV 125 125 170 170 250 250 325 325 450 450 550 550 650 650 750 750 1050 1050 1050 1050 1050 1050 1175 1175 1425 1425 1550 1550 1675 1800 2100 2400
Rated switching impulse withstand voltage: 250/2500 μs
kV – – – – – – – – – – – – – – – – 750 750 850 850 850 850 950 950 1050 1050 1175 1175 1175 1300 1425 1550
Type test voltages
Rated lightning impulse withstand voltage: 1.2/50 μs negative polarity
kV 125 125 170 170 250 250 325 325 495 495 605 605 715 715 825 825 1155 1155 1155 1155 1155 1155 1293 1293 1568 1568 1705 1705 1843 1980 2310 2640
Chopped-wave impulse voltage negative polarity
kV 151 151 206 206 303 303 393 393 545 545 666 666 787 787 908 908 1271 1271 1271 1271 1271 1271 1422 1422 1724 1724 1876 1876 2027 2178 2541 2904
Rated switching impulse withstand voltage: 250/2500 μs dry negative polarity
kV – – – – – – – – – – – – – – – – 825 825 935 935 935 935 1045 1045 1155 1155 1293 1293 1293 1430 1568 1705
Max. rated current: draw lead bolt Imax A 800 1250 800 1250 800 1250 800 1250 800 1250 800 1250 800 1250 800 1250 800 1250 800 1250 800 1250 800 1250 800 1250 800 1250 1250 1250 1250 1250 Imax
Max. rated current: removable conductor bolt
Imax A 2000 2500 2000 2500 2000 2500 2000 2500 2000 2500 2000 2500 1600 2000 1600 2000 1250 2000 1250 2000 1250 2000 1250 2000 1250 1600 1250 1600 1600 1600 2000 2000 Imax
Min. flashover distance SW mm 274 274 370 370 514 514 706 706 946 946 1138 1138 1330 1330 1522 1522 2432 2434 2866 2866 2866 2866 3250 3250 3730 3730 4354 4354 4690 5170 6514 6802 SW
Creepage distance min. min. mm 790 790 1144 1144 1675 1675 2383 2383 3268 3268 3976 3976 4684 4684 5392 5392 8753 8755 10348 10348 10348 10348 11764 11764 13534 13534 15835 15835 17074 18844 23800 24862 min.
Creepage factor: Cf l/s 2.9 2.9 3.1 3.1 3.3 3.3 3.4 3.4 3.5 3.5 3.5 3.5 3.5 3.5 3.5 3.5 3.6 3.6 3.6 3.6 3.6 3.6 3.6 3.6 3.6 3.6 3.6 3.6 3.9 3.6 3.7 3.7
Cantilever test load N 2000 2000 2000 2000 1600 2500 2000 3150 2000 3150 3150 4000 3150 4000 4000 5000 4000 5000 4000 5000 4000 5000 4000 5000 4000 5000 4000 5000 5000 5000 5000 5000
Creepage distance, referred to Um mm/kV 32.9 32.9 31.8 31.8 32.2 32.2 32.6 32.6 32.7 32.7 32.3 32.3 32.3 32.3 31.7 31.7 35.7 35.7 42.2 42.2 34.5 34.5 32.5 32.5 32.2 32.2 37.7 37.7 31.1 34.3 31.1 31.1
Dimensions D1 mm 105 105 105 130 105 130 130 130 130 150 130 150 150 170 150 170 190 210 190 210 230 230 230 230 230 285 285 285 330 330 420 420 D1
D2 mm 90 120 90 120 90 120 100 120 100 120 100 120 100 120 100 120 120 140 120 140 150 150 150 150 150 150 150 150 150 150 200 200 D2
D3 mm 250 250 250 250 250 250 250 250 250 290 290 290 290 290 290 290 350 350 350 350 400 400 400 400 400 450 450 450 550 550 600 600 D3
D4 mm 290 290 290 290 290 290 290 290 290 335 335 335 335 335 335 335 400 400 400 400 450 450 450 450 450 500 500 500 600 600 650 650 D4
D5 mm 165 165 165 200 165 200 200 200 200 200 200 200 200 238 200 238 200 290 200 290 290 290 290 290 290 380 380 380 500 500 600 600 D5
D6 mm 250 250 250 280 250 280 280 280 280 280 280 280 280 318 280 318 318 368 318 368 368 368 368 368 368 434 434 434 486 486 634 634 D6
L5 mm 75 75 75 75 75 75 75 75 75 90 90 90 90 90 90 90 90 90 90 90 90 90 95 95 95 95 95 95 100 100 120 120 L5
d1 mm 50 69 50 69 50 69 50 69 50 69 50 69 50 69 50 69 50 69 50 69 50 69 50 69 50 69 50 69 69 69 120 120 d1
d2 mm 56 78 56 78 56 78 56 78 65 85 65 85 65 85 65 85 65 85 65 85 65 85 – – – – – – – – – – d2
l1 mm 25 25 25 25 25 25 25 25 50 50 50 50 50 50 50 50 50 50 50 50 50 50 – – – – – – – – – – l1
s mm 15 15 15 15 15 15 15 15 15 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 30 30 30 30 s
i mm 15 15 15 15 15 15 15 15 15 20 20 20 20 15 20 15 20 20 20 20 20 20 20 20 20 20 20 20 25 25 25 25 i
z 8 8 8 8 8 8 8 8 8 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 16 16 16 16 z
a ° 45 45 45 45 45 45 45 45 45 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 22.5 22.5 22.5 22.5 a
Connecting terminal dimensions d3 x L4
mm ≤ 1250 A = Ø 30 x 90; ≤ 1600 A = Ø 42 x 135; ≤ 2500 A = Ø 48 x 135
C.T. accommodation length E mm 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 E
L1 mm 150 150 180 180 195 195 230 230 310 310 350 350 390 390 450 450 620 620 620 620 620 620 690 690 790 790 840 840 890 990 1090 1290 L1
L2 mm 564 564 660 665 804 809 1001 1001 1241 1241 1503 1533 1725 1695 1917 1887 2854 2854 3286 3286 3286 3286 3670 3670 4150 4230 4859 4859 5275 5755 7349 7637 L2
L3 mm 150 150 150 155 150 155 155 155 155 155 155 155 155 155 155 155 185 185 185 185 185 185 185 185 185 185 185 185 260 260 400 400 L3
Total length L mm 714 714 840 845 999 1004 1231 1231 1551 1551 1853 1883 2115 2085 2367 2337 3474 3474 3906 3906 3906 3906 4360 4360 4940 5020 5699 5699 6165 6745 8439 8927 L
C.T. accommodation length E mm 300 300 300 300 300 300 300 300 300 300 300 300 300 300 300 300 300 300 300 300 300 300 300 300 300 300 300 300 300 300 300 300 E
L1 mm 450 450 480 480 495 495 530 530 610 610 650 650 690 690 750 750 920 920 920 920 920 920 990 990 1090 1090 1140 1140 1190 1290 1390 1590 L1
Total length L mm 1014 1014 1140 1145 1299 1304 1531 1531 1851 1851 2153 2183 2415 2385 2667 2637 3774 3774 4206 4206 4206 4206 4660 4660 5240 5320 5999 5999 6465 7045 8739 9227 L
C.T. accommodation length E mm 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 E
L1 mm 750 750 780 780 795 795 830 830 910 910 950 950 990 990 1050 1050 1220 1220 1220 1220 1220 1220 1290 1290 1390 1390 1440 1440 1490 1590 1690 1890 L1
Total length L mm 1314 1314 1440 1445 1599 1604 1831 1831 2151 2151 2453 2483 2715 2685 2967 2937 4074 4074 4506 4506 4506 4506 4960 4960 5540 5620 6299 6299 6765 7345 9039 9527 L
Test tap principle:
When the test tap cap is
screwed on, the pin of the
insulating bushing is earthed.
For test purposes, plug on
a 4-mm spring socket.
SW27
O-ring 22 x 2.5
28
ø 18.5
ø 28
M24 x 1.5
ø 4
19 209
45°
Sealing surface
All dimensions in the sectional views are given in mm.
Test tap
6 | 7 | 8 | 9
4
s
ø i
90°
ø D3
ø D4
Test tap
Earthing holes M12
2 lifting eyeboltsø i
z x a°
Transformer air vent
Flange plate
References
420 kV bushing on a network inter-
connecting transformer in Germany
420 kV outdoor bushing
at a GIS substation in Germany
36 – 420 kV bushing
on a phase shifter in Portugal
HSP bushings throughout the worldThe proverbial quality and reliability of HSP products has led
to our condenser bushings being used in the leading energy
projects worldwide.
10 | 11
The HSP product range:We cover all requirements of modern high-voltage technology
up to the ultra-high operating voltages with our products and
services. Our product portfolio is enhanced with tailored services
for our own products as well as those from other manufacturers.
1 Transformer bushing2 Switchgear bushing3 Generator bushing4 HVDC bushing
In addition to standardized products, we also offer individual
special products for our customers that we manufacture with
state-of-the-art production processes. These are usually developed
by us in-house and tested in our fully equipped, internationally
accredited test bay.
250 kV direct current bushing
on a converter transformer in China
1 42 3
Published by and copyright © 2012:
HSP Hochspannungsgeräte GmbH Camp-Spich-Str. 18 53842 Troisdorf-Spich Germany
Tel.: +49 (0) 22 41/25 26-0 Fax: +49 (0) 22 41/25 26-116
E-mail: [email protected]
www.hspkoeln.de
Pub. SETFt 24 – 800 kV06/12-1500 TH 102-120321All rights reserved.Brands and trademarks used in this documentare the property of HSP Hochspannungsgeräte GmbH.
Subject to change without prior notice.The information in this document contains generaldescriptions of the technical options which are notnecessarily available in every single case. The requiredfeatures must therefore be defined in each individualcase when concluding the contract.
Printed in Germany on elementary chlorine free paper.