bushings for metal clad installations type sot 123 kv to 550 ......420 243 750 680 1550 1175 420 243...
TRANSCRIPT
Bushings for metal clad installationsSF6 / OilType SOT123 kV to 550 kVUp to 2500 AAccording IEC 1639-1996 & IEC 60137-2008
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Bushings for transformer to gas insulated switchgear connections
Bushing Type SOT
Application:
This type of bushing, suitable for direct connection between metal clad SF6-insulated switchgear and transformers, enables the integrating of power transformers to the grounded enclosure system of the switchgear.
It is no longer required to join the transformers to the switchgear by means of overhead lines or cables, thus saving outdoor bushing or cable end boxes on both switchgear and transformer side.
Features: Design is in line with latest requirements of IEC 1639 for gas
side connection. Experience in bushing manufacture for more than 90 years. Capacitance fine graded oil-paper insulation with long
experience. Computer optimized electrical field distribution. Proven high electrical withstand against transient or impulse
test. Excellent long term stability due to extremely low partial
discharge and power loss factor. Oil immersed part and SF6 part covered by epoxy resin tube
providing high impact resistance. Tan δ and PD-values more than twice as good as requested by
IEC 60137. Possibility to trace SF6 gas by means of doing DGA
(dissolved gas analysis) Long term easy storage: Bushing 100% tight towards ambient
humidity.
Certified ISO 9001
Certified ISO 14001
Trench OIP technology for Oil / SF6 bushings
SF6
Transformer
Page 2 / 12 40497285_00
Bushings for transformer to gas insulated switchgear connections
Bushing Type SOT
Application:
This type of bushing, suitable for direct connection between metal clad SF6-insulated switchgear and transformers, enables the integrating of power transformers to the grounded enclosure system of the switchgear.
It is no longer required to join the transformers to the switchgear by means of overhead lines or cables, thus saving outdoor bushing or cable end boxes on both switchgear and transformer side.
Features: Design is in line with latest requirements of IEC 1639 for gas
side connection. Experience in bushing manufacture for more than 90 years. Capacitance fine graded oil-paper insulation with long
experience. Computer optimized electrical field distribution. Proven high electrical withstand against transient or impulse
test. Excellent long term stability due to extremely low partial
discharge and power loss factor. Oil immersed part and SF6 part covered by epoxy resin tube
providing high impact resistance. Tan δ and PD-values more than twice as good as requested by
IEC 60137. Possibility to trace SF6 gas by means of doing DGA
(dissolved gas analysis) Long term easy storage: Bushing 100% tight towards ambient
humidity.
Certified ISO 9001
Certified ISO 14001
Trench OIP technology for Oil / SF6 bushings
SF6
Transformer
40497285_01
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Oil / SF6 Bushing
Design SF6 side Shield (on request)
SF6 side Terminal
Terminal (Al or Cu) for connection is designed according standard IEC 1639.
SF6 side end
The insulator on the SF6 side is made of an epoxy resin tube.
Active part
The active part is made of oil-impregnated wide band paper with layers of aluminum foil to control the electrical field radially and axially. Depending on the current rating, the paper and foil are wounded on either a central tube or conductor
Flange
Mounting flange with integrated test tap and oil sampling device made of corrosion free aluminum alloy, machined to ensure an excellent seal between the bushing and the transformer or metal clad SF6 insulated switchgear.
Oil sampling device
Test tap
Test tap for through life capacitance and
tan delta measurement.
Oil side end
The insulator on the SF6 side is made of an epoxy resin tube.
Oil side terminal
Terminal (Al or Cu) for connection Dimensions according customer request
Oil side Shield (on request)
1
2
3
4
5
6
7
8
9
10
Page 3 / 12 40497285_00
Oil / SF6 Bushing
Design SF6 side Shield (on request)
SF6 side Terminal
Terminal (Al or Cu) for connection is designed according standard IEC 1639.
SF6 side end
The insulator on the SF6 side is made of an epoxy resin tube.
Active part
The active part is made of oil-impregnated wide band paper with layers of aluminum foil to control the electrical field radially and axially. Depending on the current rating, the paper and foil are wounded on either a central tube or conductor
Flange
Mounting flange with integrated test tap and oil sampling device made of corrosion free aluminum alloy, machined to ensure an excellent seal between the bushing and the transformer or metal clad SF6 insulated switchgear.
Oil sampling device
Test tap
Test tap for through life capacitance and
tan delta measurement.
Oil side end
The insulator on the SF6 side is made of an epoxy resin tube.
Oil side terminal
Terminal (Al or Cu) for connection Dimensions according customer request
Oil side Shield (on request)
1
2
3
4
5
6
7
8
9
10
40497285_01
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4 /
12
40
4972
85_0
0 Ty
pe S
OT
0102
0304
0506
0708
0910
1112
1314
1516
1718
1920
2122
2324
2526
2728
2930
3132
3334
3536
Highest voltage (Um)
Maximum phase to earth voltageBushing Dry Power frequency voltage withstand (AC)Transformer Power frequency voltage withstand (AC)Lightning Impulse withstand voltage (BIL)Switching Impulse withstand voltage (SIL)
Rated current (Ir)
CT Space L4
Mass Approx.
Cantilever test load (min)
LL1
L2L3
L5L6
L7L8
D1D2
D3D4
D5D6
D7D8
D9D1
0n1
t1n2
t2n3
m3
n4m
4kV
kVkV
kVkV
kVA
mm
kgN
1250
7031
50
1600
9031
50
1250
7031
50
1600
9031
50
1250
7040
00
1600
9040
00
1250
120
4000
1600
130
4000
2500
140
5000
1250
240
4000
1600
265
4000
2500
280
5000
1250
240
4000
1600
265
4000
2500
280
5000
1050
420
243
750
680
1550
1175
420
243
695
630
1425
245
142
505
460
1050
850
750
-
145
8430
527
565
0-
123
170
9835
532
5
7125
523
055
0-
M12
2012
860
382
770
±223
2325
270
400
450
270
535
565
899
25
M12
1624
16
70
16
mm
1325
575
230
520
±122
2520
2020
529
033
520
530
5
9012
4
M10
139
20
4
690
9011
5
Standard: 100, 300
2586
1176
360
1050
±2
2525
20
16
22
335
70 110
365
640
700
365
640
Page 4 / 12 40497285_00
Type SOT
01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36
High
est v
olta
ge (U
m)
Max
imum
pha
se to
ear
th v
olta
geBu
shin
g Dr
y Po
wer
freq
uenc
y vo
ltage
w
ithst
and
(AC)
Tran
sfor
mer
Pow
er fr
eque
ncy
volta
ge
with
stan
d (A
C)Li
ghtn
ing
Impu
lse
with
stan
d vo
ltage
(B
IL)
Switc
hing
Impu
lse
with
stan
d vo
ltage
(S
IL)
Rate
d cu
rren
t (Ir)
CT S
pace
L4
Mas
s Ap
prox
.
Cant
ileve
r tes
t loa
d (m
in)
L L1 L2 L3 L5 L6 L7 L8 D1 D2 D3 D4 D5 D6 D7 D8 D9 D10 n1 t1 n2 t2 n3 m3 n4 m4kV kV kV kV kV kV A mm kg N
1250 70 3150
1600 90 3150
1250 70 3150
1600 90 3150
1250 70 4000
1600 90 4000
1250 120 4000
1600 130 4000
2500 140 5000
1250 240 4000
1600 265 4000
2500 280 5000
1250 240 4000
1600 265 4000
2500 280 5000
1050
420 243 750 680 1550 1175
420 243 695 630 1425
245 142 505 460 1050 850
750 -
145 84 305 275 650 -
123
170 98 355 325
71 255 230 550 -
M12
2012 860 382 770 ±2 23 23 25 270 400 450 270 535 565
899
25
M12
16 24
16
70
16
mm
1325 575 230 520 ±1 22 25 20 20 205 290 335 205 305
90 12
4
M10139
20
4
690 90 115
Stan
dard
: 100
, 300
2586 1176 360 1050 ±2 25 25 20
16
22
335 70
110
365 640 700 365 640
40497285_01
Page
5 /
12
40
4972
85_0
0 C
omm
ents
rela
ted
to c
olum
ns :
03: B
ushi
ngs
test
vol
tage
at 5
0Hz
60 s
ec.
08: O
ther
ext
ensi
on c
urre
nt tr
ansf
orm
er o
n re
ques
t
11,1
2: L
1 dep
ends
on
L 4. T
he v
alue
s in
the
tabl
e ar
e va
lid fo
r L4=
100
mm
. If L
4>10
0mm
add
L4 t
o L 1
and
L.
0102
0304
0506
0708
0910
1112
1314
1516
1718
1920
2122
2324
2526
2728
2930
3132
3334
3536
Highest voltage (Um)
Maximum phase to earth voltageBushing Dry Power frequency voltage withstand (AC)Transformer Power frequency voltage withstand (AC)Lightning Impulse withstand voltage (BIL)Switching Impulse withstand voltage (SIL)
Rated current (Ir)
CT Space L4
Mass Approx.
Cantilever test load (min)
LL
1L
2L
3L
5L
6L
7L
8D
1D
2D
3D
4D
5D
6D
7D
8D
9D
10n
1t1
n2
t2n
3m
3n
4m
4kV
kVkV
kVkV
Am
mkg
N
1250
240
4000
1600
265
4000
2500
280
5000
1250
240
4000
1600
265
4000
2500
280
5000
1175
550
318
750
680
1675
1175
550
318
750
680
1550
M10
139
mm
2586
1176
360
1050
±2
2525
2520
365
640
700
365
640
690
110
204
M12
4
Standard: 100, 300
9011
516
2416
Page 5 / 12 40497285_00
Comments related to columns : 03: Bushings test voltage at 50Hz 60 sec.
08: Other extension current transformer on request
11,12: L1 depends on L4. The values in the table are valid for L4= 100mm. If L4>100mm add L4 to L1 and L.
01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36
High
est v
olta
ge (U
m)
Max
imum
pha
se to
ear
th v
olta
geBu
shin
g Dr
y Po
wer f
requ
ency
vol
tage
wi
thst
and
(AC)
Tran
sfor
mer
Pow
er fr
eque
ncy
volta
ge
with
stan
d (A
C)Li
ghtn
ing
Impu
lse
with
stan
d vo
ltage
(B
IL)
Switc
hing
Impu
lse
with
stan
d vo
ltage
(S
IL)
Rate
d cu
rrent
(Ir)
CT S
pace
L4
Mas
s Ap
prox
.
Cant
ileve
r tes
t loa
d (m
in)
L L1 L2 L3 L5 L6 L7 L8 D1 D2 D3 D4 D5 D6 D7 D8 D9 D10 n1 t1 n2 t2 n3 m3 n4 m4kV kV kV kV kV A mm kg N
1250 240 4000
1600 265 4000
2500 280 5000
1250 240 4000
1600 265 4000
2500 280 5000
1175
550 318 750 680 1675 1175
550 318 750 680 1550
M10139
mm
2586 1176 360 1050 ±2 25 25 25 20 365 640 700 365 640 690 110 20 4 M12 4
Stan
dard
: 100
, 300
90 115 16 24 16
40497285_01
Page 6 / 12 40497285_00
Dimensional Drawing
L
L2
L1
L3
L4
L5
L6
SF6-Side
Oil-Side
øD4
øD1
Page 6 / 12 40497285_00
Dimensional Drawing
L
L2
L1
L3
L4
L5
L6
SF6-Side
Oil-Side
øD4
øD1
40497285_01
Page 7 / 12 40497285_00
Dimensional Drawing
SF6 side
Oil side
n2 x ø t2
Ø D6
Ø D5 Ø D8
Ø D7
L7
n3 x M 3
L7 L7
n3 x M 3
L7
Ø D3
Ø D2
n1 x ø t1 n4 x M 4
L8
Ø D9
Ø D10
± 0.3
0 -0.5
Page 7 / 12 40497285_00
Dimensional Drawing
SF6 side
Oil side
n2 x ø t2
Ø D6
Ø D5 Ø D8
Ø D7
L7
n3 x M 3
L7 L7
n3 x M 3
L7
Ø D3
Ø D2
n1 x ø t1 n4 x M 4
L8
Ø D9
Ø D10
± 0.3
0 -0.5
40497285_01
Page 8 / 12 40497285_00
Standard
G1/4 Air Outlet
6
Flat gasket
Test tap (2kV)
O-ring gasket Multiple spring contact
22
Oil sampling device
Valve
Page 8 / 12 40497285_00
Standard
G1/4 Air Outlet
6
Flat gasket
Test tap (2kV)
O-ring gasket Multiple spring contact
22
Oil sampling device
Valve
40497285_01
Page 9 / 12 40497285_00
On request
Pressure control
Stress shield
Stress shields are also available with bayonet fixing system and screwed fixing system
If you need any Oil / SF6 bushing proven
in operation conditions around the world,
Trench has it!
This system permit to control the pressure inside of the bushing
Page 9 / 12 40497285_00
On request
Pressure control
Stress shield
Stress shields are also available with bayonet fixing system and screwed fixing system
If you need any Oil / SF6 bushing proven
in operation conditions around the world,
Trench has it!
This system permit to control the pressure inside of the bushing
40497285_01
Page 10 / 12 40497285_00
Technical data request Mark the requested value…
Um 123kV 145kV 170kV 245kV 420kV 550kV Other
………………………………………………………………………………………………………………………………………………...
Up Transformer 230kV 275kV 325kV 460kV 630kV 680kV Other
………………………………………………………………………………………………………………………………………………...
BIL 550kV 650kV 750kV 1050kV 1425kV 1550kV 1675kV Other
………………………………………………………………………………………………………………………………………………...
Rated Current 1250A 1600A 2500A Other
………………………………………………………………………………………………………………………………………………...
CT Space 100mm 300mm Other
………………………………………………………………………………………………………………………………………………...
Terminals Material Aluminum Copper Other
………………………………………………………………………………………………………………………………………………...
Maximum Oil Temperature 70° 80° 90° 100°
Other
………………………………………………………………………………………………………………………………………………...
Bus Duct Temperature 60° 70° 80° Other
Page 10 / 12 40497285_00
Technical data request Mark the requested value…
Um 123kV 145kV 170kV 245kV 420kV 550kV Other
………………………………………………………………………………………………………………………………………………...
Up Transformer 230kV 275kV 325kV 460kV 630kV 680kV Other
………………………………………………………………………………………………………………………………………………...
BIL 550kV 650kV 750kV 1050kV 1425kV 1550kV 1675kV Other
………………………………………………………………………………………………………………………………………………...
Rated Current 1250A 1600A 2500A Other
………………………………………………………………………………………………………………………………………………...
CT Space 100mm 300mm Other
………………………………………………………………………………………………………………………………………………...
Terminals Material Aluminum Copper Other
………………………………………………………………………………………………………………………………………………...
Maximum Oil Temperature 70° 80° 90° 100°
Other
………………………………………………………………………………………………………………………………………………...
Bus Duct Temperature 60° 70° 80° Other
40497285_01
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Notes:
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Notes:
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40497285_01
Trench® France SAS16, rue du Général CassagnouB.P. 80070 F-68302 Saint-Louis Cedex France Phone : +33 3 89 70 23 23Fax : +33 3 89 70 23 59
Product Range
Bushings for
• Power Transformersup to 550 kV, 5000A
• High Current Applicationup to 52 kV, 40kA
• Transformer to SF6connection up to 550kV
• Gas-insulated Switchgear(GIS) up to 800 kV, 6000A
• Generatorsup to 36 kV, 50kA
• Railways
• Buildings , Wallup to 245 kV, 5000A
• Bushings accordingStandard IEC 60137
• Bushings according tocustomer’s special speci� cation
imprimerie de saint-louis troendlé bieler
All rights reserved.Brands and trademarks used in this documentare the property of Trench®Subject to change without prior notice.The information in this document contains general descriptions of the technical options which are not necessarily available in every single case. The required features must therefore be defined in each individual case when concluding the contract.
40497285_01
Quality
At Trench quality is a way of life. Trench quality assurancecomplies with the most stringent standards of ISO 9001 and ISO 14001.
Certified by AFAQ since 1994