Catalogue Wetown Busway Series
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Transcript of Catalogue Wetown Busway Series
Contents
LZ series compact busway 18
Wind power busway 27
Copper bar 42
LM series compact busway 1
GM cast resin busway 21
Medium voltage busway 32
LM series compact busway
The compact "sandwich" design saves space with minimum voltage drop.
Specially designed to fit into the tight angle and height requirements of today's
architectural space, between floors and along walls.
The conductor is fully enclosed with the aluminium enclosure, which provides
excellent heat dissipation, thus improving the power transmission efficiency and
reducing voltage drop.
The operating handle of plug can be installed on the top or side with accurate
opening or closing indication.
The padlock mechanism is set for protecting the plug from mal-operation
and any unauthorized access.
Plug outlet covers prevent unintentional contact of the busbar.
Plug in units are automatically grounded on installation.
Polarized engagement of the plug to the busway provides the installer with
positive plug/phase alignment.
Bus plugs are provided with internal interlocking mechanisms to prevent their
doors from being opened whilst energized, ensuring operation safety.
LM series compact busway system is a flexible and reliable electrical distribution system with a sandwich
construction and superior performance. It is a safe and robust system with high electrical efficiency, low
temperature rise, efficient heat dissipation, low voltage drop, high mechanical strength and ease of installation.
It is suitable for alternating current three-phase three-wire, three-phase four-wire and three-phase
five-wire power supply and distribution system, with the frequency 50～60Hz, rated working voltage up to
690V, rated insulation voltage up to 1000V, and rated working current 100-5000A.
System introduction
Product featuresCompact design means flexibility
·
·
Safety Feature of the Bus Plug
·
·
·
·
·
·
01
Robust enclosure with light-weight feature
Busway system utilizes high performance tin-plated copper or silver-
plated aluminium conductor, and provides high quality protection from
corrosion and high conductivity at the contact surface.
The conductive busbar is wholly wrapped in Class B (130) insulating
material, providing significant insulation level and resistance to impact.
The insulating material meets the requirements of ROHS, and safety
requirements of GE.
The joint assembly's cone-shaped insul ation plate design increases
mechanical strength while its molded joint ground side plate ensures
even pressure applied across the joint.
Large sized Belleville washers assure even pressure on contact .
No special torque wrench is required. Just a common 16mm socket
wrench is used to fasten the xed captive torque bolt with red
indication disc. (When the indicating discfalls off, the joint is properly
tightened automatically).
4mm per joint field adjustable isolation allows for job site flexibility
during installation.
Precision sawing machine to assure the formation of
cross-section of copper bar and reduce the contact resistance
of busbar joints to a great extent.
With light-weight, aluminum alloy enclosure, the unique design can
fit your specific application with high exibility, safety and reliability.
The powder coated aluminum alloy enclosure has been tested to
withstand the salt spray test.
The aluminum alloy enclosure is corrosion resistant , provides high
heat dissipation and an extremely low impedance ground path , with
50% grounding capacity.
·
·
·
Reliable insulation
·
·
·
Ease of installation
·
·
·
Precision equipment
·
·
02
Technology parameters
Grouding resistance of LM busway system (50% grounding temperature=20℃)
Copper bar
Items
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
Rated current（A）
250
400
630
800
1000
1250
1350
1600
2000
2300
2500
3150
3200
3800
4000
4500
5000
Resistance（10-6 Ω/m）
308.8
208.1
179.1
141.1
108.1
94.2
81.0
64.3
55.8
45.8
37.6
28.9
28.9
24.8
23.3
18.8
17.4
Items
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
Rated current（A）
100
160
200
250
400
500
630
800
1000
1250
1350
1600
2000
2300
2500
3150
3800
4000
Resistance（10-6 Ω/m）
342.7
342.7
342.7
342.7
259.8
210.7
178.1
138.0
119.4
95.2
86.1
76.9
63.3
56.4
52.7
35.0
28.6
25.2
Table1-1
Aluminum bar
Short-circuit current ratings
LM busway provides predictable, consistent strength and high short-circuit ratings.
LM busway is third party certified by KEMA to be in compliance with IEC60439-1 and-2 short circuit
withstand test for 1 second.
Rated current
（A）
250~800
1000~1600
2000~3150
3200~5000
Rated short-time
withstand current（KA）
30
50
65
100
Rated peakwithstand current
（KA）
63
105
143
220
Rated current
（A）
100~250
400~800
1000~2500
3150~4000
Rated short-time
withstand current（KA）
10
30
50
80
Rated peakwithstand current
（KA）
17
63
105
176
Copper conductor Aluminum conductor
Table1-2
Table1-3 Table1-4
03
Ambient temperature's influence on application
Within the ambient temperature of 40, LM busway system can continuously operate at rated current
while the maximum enclosure temperature rise won't exceed 55 K.
If the busway continuously operated at higher ambient temperature, it should be derated first, i.e. the
busway current-carrying capacity = rated current x de-rating factor. (As shown in tables)
Ambient temperature (A)
40
45
50
55
60
65
70
Factor
1.00
0.95
0.90
0.85
0.80
0.74
0.67
Table1-5
Ambient temperature,24h average temperature(℃)
Table1-6
Rated
curren
tle
[%]
04
Resistance, reactance, impedance and voltage drop
LM busway has low voltage-drop values. Minimum reactance is due to very close bar spacings (sandwiched
construction) and a non-magnetic enclosure. Values shown are identical for plug-in and feeder.
Copper busbar(50Hz, temperature=20℃)
Rated
current(A)
2504006308001000125013501600200023002500315032003800400045005000
Resistance
10-6Ω/m154.4104.089.670.558.947.140.535.327.922.918.814.414.412.411.79.48.7
Reactance
44.835.332.127.424.120.718.316.614.212.310.79.59.56.56.35.45.0
Impedance
160.8109.895.175.763.751.444.43931.326.021.617.317.314.013.310.810.0
Voltage drop (V/m)Power factor cosφ
0.60.0560.0630.0870.0890.0950.0970.0910.0960.0970.0940.0860.0890.0900.0830.0830.0780.080
0.70.0610.0680.0930.0950.1010.1030.0970.1010.1030.0990.0900.0920.0930.0870.0880.0810.084
0.80.0650.0720.0990.1010.1070.1080.1010.1060.1070.1020.0930.0940.0950.0910.0910.0840.086
0.90.0690.0760.1030.1050.1100.1120.1040.1080.1090.1040.0940.0940.0950.0920.0920.0840.087
1.00.0670.0720.0980.0980.1020.1020.0950.0980.0970.0910.0810.0790.0800.0820.0810.0730.075
Aluminum busbar(50Hz, temperature=20℃ )
Rated
current(A)
100
160
200
250
400
500
630
800
1000
1250
1350
1600
2000
2300
2500
3150
3800
4000
Resistance
10-6Ω/m
171.3
171.3
171.3
171.3
129.9
105.3
89.0
69.0
59.7
47.6
43.0
38.5
31.7
28.2
26.3
17.5
14.3
12.6
Reactance
35.3
35.3
35.3
35.3
29.5
25.6
22.8
19.1
17.1
14.5
13.6
12.5
10.9
10.0
9.5
5.8
5.0
4.8
Impedance
174.9
174.9
174.9
174.9
133.2
108.4
91.9
71.6
62.1
49.8
45.1
40.4
33.5
29.9
28.0
18.5
15.2
13.5
Voltage drop (V/m)
Power factor cosφ
0.6
0.023
0.036
0.045
0.057
0.070
0.072
0.078
0.079
0.086
0.087
0.086
0.092
0.096
0.099
0.101
0.083
0.083
0.079
0.7
0.025
0.040
0.050
0.063
0.078
0.080
0.086
0.086
0.093
0.094
0.093
0.099
0.104
0.107
0.109
0.089
0.089
0.085
0.8
0.027
0.044
0.055
0.069
0.084
0.086
0.093
0.092
0.100
0.101
0.100
0.106
0.110
0.114
0.116
0.095
0.095
0.090
0.9
0.029
0.047
0.059
0.073
0.090
0.092
0.098
0.098
0.106
0.107
0.105
0.111
0.115
0.119
0.121
0.100
0.099
0.093
1.0
0.030
0.047
0.059
0.074
0.090
0.091
0.097
0.096
0.103
0.103
0.101
0.107
0.110
0.112
0.114
0.096
0.094
0.087
Table1-7
Table1-8
05
Physical data
Feeder straight length
Feeder straight lengths may be installed
either vertically or horizontally.
Copper busbar
Rated
current
(A)
250
400
630
800
1000
1250
1350
1600
2000
2300
2500
3150
3200
3800
4000
4500
5000
Weight of busbar (kg/m)
Four-wire100%N
9.2
11.6
12.8
15.2
17.6
21.1
24.7
28.6
35.4
43.8
53.3
64.7
64.7
76.7
81.5
103.0
112.6
Five-wire 100%N, 50%PE
9.8
12.4
13.8
16.4
19.2
23.1
27.1
31.4
39.1
48.4
59.1
71.8
71.8
85.1
90.5
114.5
125.2
Fig
1-2
1-3
Rated
current
(A)
100-250
400
500
630
800
1000
1250
1350
1600
2000
2300
2500
3150
3800
4000
Weight of busbar (kg/m)
Four-wire100%N
6.9
7.7
8.6
9.4
11.1
12.3
14.8
16.1
17.7
21.1
23.6
25.2
37.3
45.1
48.6
Five-wire 100%N, 50%PE
7.2
8.1
9.0
9.9
11.8
13.1
15.9
17.3
19.1
22.8
25.6
27.4
40.5
49.1
52.9
Fig
1-2
1-3
Aluminum busbar
Notes: The figures are only for reference, our company reserves the right to amend the above datas without notice.
Dimensions and weight
Standard length is 3000mm, and the
minimum length is 400mm.
Table1-9 Table1-10
Fig1-1 Fig1-2 Fig1-3
06
Plug-in busway has a flexible design with optional
plug outlets on both sides. The minimum space
between plugs is 610mm and up to 4 plug outlets
may be fixed on each side of the 3-meter standard
length. The customer may reserve plug outlets for
extension in the future when changes occurs in terms
of the equipment load or busway run. The plug-in
busway may be installed either vertically or
horizontally.
Both base plate and socket cover are set for each
plug outlet. The former helps to prevent fingers from
contacting live conductors (IP2X) by accident, on
which the phase sequences of conductors are identied. And the latter prevents the conductive contacting
surface from ingress of dust or contaminant . A pad may be used to keep off dust or moisture.
Standard length is 3000mm, and the minimum length is 1000mm. The standard length of L1 (distance
from the center of plug outlet to standard end) is 600mm, and the standard length of L2 (distance between
the centers of two adjacent plug outlets) is 600mm.
Below is a drawing and form to show the minimum dimension of the busway length.
LM busway system adopts the double-headed torque
limiting joint bolt. When the bolt is properly tightened,
the top bolt head will break off so as to ensure the
correctness of installation.
The joint has 4mm adjustments for both side busway.
The connection cover plate avoids excessive adjustment
of the joint. The joint may be safely removed without
obstructing the adjacent length.
Plug-in straight length
Joint
Fig1-4
Fig1-5
07
This bolt is the standard joint bolt offered for all LM
Series Busway.
When the bolt is properly tightened, the outer head
will break off with the bright red label removed. This
will help eliminate any errors occur during installation
by a quick visual inspection.
No torque wrench is required for initial installation.
The bolt is reusable after the top head is broken off
by using a standard torque wrench on the second
bolt head.
The standard torque is 685N.m.
Double-headed torque limiting joint bolt
·
·
·
Fig1-6
·
08
Fittings
LM busway system has a complete family of fittings to meet virtually all layout requirements using the
compact minimum sizes shown. Special turns such as at angles greater than 90and crosses are also available.
Each piece of busway is labeled to maintain proper
phasing. All enclosure width and depth dimensions are
identical to straight lengths.
Note: Offsets and combination elbows are typically used
only when standard elbows will not fit.
Edgewise elbow Flatwise elbow
Edgewise offset Flatwise offset
Fig1-7
Fig1-8
Fig1-9
Fig1-10
09
Edgewise tee Flatwise tee
Flanged end
Flanged end and end tap box can be used in connection with switchgear and transformer of any type, and
users can determine, the spacing between the stubs of the bus bar based on the specic applications.
Flatwise cross Edgewise cross
Fig1-11Fig1-12
Fig1-13Fig1-14
Fig1-15
10
Note:1. AS a standard anged end, when the bus bar current is less than or equal to 1600A, K =100mm; when
the bus bar current is more than 1600A, K =120mm.2. The dimension of flanged end cover Aand B can be decided by switch cabinet and transformer end or
according to customer’s requirements.3.“a”and“b”is the distance between the centres of holes, which dimension is decided by the hole of
switch cabinet and transformer end.4. All the dimensions provided are for standard products. Please contact our engineers for customized
products' dimensions.
Flanged end details
Fig1-16
Fig1-17
11
Rated Current (A)
250
400
630
800
1000
1250
1350
1600
2000
2300
2500
3150
3200
3800
4000
4500
5000
A
20
20
20
20
25
25
20
25
30
30
30
30
30
25
25
30
30
B
40
40
40
40
50
50
40
50
60
60
60
60
60
50
50
60
60
C
～
～
～
～
～
40
40
60
60
60
60
60
60
50
50
60
60
K
100
100
100
100
100
100
100
100
120
120
120
120
120
120
120
120
120
2-M
2-φ11
2-φ11
2-φ11
2-φ11
2-φ14
4-φ14
4-φ14
4-φ18
6-φ18
6-φ18
6-φ18
4-φ18
4-φ18
6-φ18
6-φ18
6-φ18
6-φ18
Type
A
A
A
A
A
B
B
B
C
C
C
B
B
C
C
C
C
Rated current (A)
100
160
200
250
400
500
630
800
1000
1250
1350
1600
2000
2300
2500
3150
3800
4000
A
20
20
20
20
20
25
25
20
20
30
30
25
30
30
30
25
30
30
B
40
40
40
40
40
50
50
40
40
60
60
50
60
60
60
50
60
60
C
～
～
～
～
～
～
～
40
40
60
60
50
60
60
60
50
60
60
K
100
100
100
100
100
100
100
100
100
100
100
100
120
120
120
120
120
120
2-M
2-φ11
2-φ11
2-φ11
2-φ11
2-φ11
2-φ14
2-φ14
4-φ14
4-φ14
4-φ18
4-φ18
6-φ18
6-φ18
6-φ18
6-φ18
6-φ18
6-φ18
6-φ18
Type
A
A
A
A
A
A
A
B
B
B
B
C
C
C
C
C
C
C
Aluminium busbar
Copper busbar
Table1-11
Table1-12
12
End tap box
LM busway system tap boxes are used where a run of busway is
fed by cable. We offer standard size end tap box (1m1m1m) while
we also supply with nonstandard box according to the on-site
measurement.
All the dimension provided are for standard products. Please
contact our engineers for customized products' dimensions.
Terminnal cover
Terminal cover is installed to terminate the busway, preventing outsider environment from contacting with
the live parts, thus enclosing the whole bus system.
Connection between flanged end and end tap box
The flange can be produced according to the dimension of end
tap and connected to end tap directly.
13
Flanged end cutout and hole pattern
Note:1. "A" indicates the length of end tap box while "B" indicates the width, they are based on the site
situation.2. "L1" and "L2" are based on the location of flanged end. For standard product, they' are the same.3. "M1" is based on the location of flanged end. For standard product, M1=M/24. As shown in the figure, the hole in the corner shall be 75mm away from one edge of end tap box and
20mm away from the other, the rest distance wherein is given uniformly for mid holes according to situation.5. "a" and " b" indicate the distance between the centers of two adjacent holes, and the value shall be
limited with the extension from 100mm to 250mm.
Rated Current
(A)
250
400
630
800
1000
1250
1350
1600
2000
2300
2500
3150
3200
3800
4000
4500
5000
M
4 Wire
330
330
330
330
330
330
330
330
390
390
390
390
390
390
390
390
390
5 Wire
430
430
430
430
430
430
430
430
510
510
510
510
510
510
510
510
510
N
50
60
65
75
85
100
115
130
160
195
235
312
312
362
382
472
512
Rated Current
(A)
100
160
200
250
400
500
630
800
1000
1250
1350
1600
2000
2300
2500
3150
3800
4000
M
4 Wire
330
330
330
330
330
330
330
330
330
330
330
330
390
390
390
390
390
390
5 Wire
430
430
430
430
430
430
430
430
430
430
430
430
510
510
510
510
510
510
N
60
60
60
60
70
80
90
110
125
155
170
190
230
260
280
432
522
562
Copper busbar Aluminium busbar
Table1-13 Table1-14
Fig1-18
14
Wall flange
Note:
1. W indicates the width of busway while H
indicates the height;
2. A indicates the width of cutout while B
indicates the height;
3. W1 indicates the external width of ange
while H1 indicates the height;
4. W2 indicates the internal width of ange
while H2 indicates the height;
5. The ange is dimidiate;
6. Flange is necessary in both sides of the
cutout;
7. Flange is fixed against the wall with internal
expansion bolt.
RatedCurrent
(A)
100
160
200
250
400
500
630
800
1000
1250
1350
1600
2000
2300
2500
3150
3200
3800
4000
4500
5000
External dimension ofbuswayW×H
Cu
～
～
～
128×78
128×88
～
128×93
128×103
128×113
128×128
128×143
128×158
128×188
128×223
128×263
128×340
128×340
128×390
128×410
128×500
128×540
Al
128×88
128×88
128×88
128×88
128×98
128×108
128×118
128×138
128×153
128×183
128×198
128×218
128×258
128×288
128×308
128×460
～
128×550
128×590
～
～
Dimension of cutoutA×B(≥)
Cu
～
～
～
230×180
230×190
～
230×195
230×205
230×215
230×230
230×245
230×260
230×290
230×325
230×365
230×442
230×442
230×492
230×512
230×602
230×642
Al
230×190
230×190
230×190
230×190
230×200
230×210
230×220
230×240
230×255
230×285
230×300
230×320
230×360
230×390
230×410
230×562
～
230×652
230×692
～
～
External dimension of wallange
W1×H1(≥)
Cu
～
～
～
215×380
215×390
～
215×395
215×405
215×415
215×430
215×445
215×460
215×490
215×525
215×565
215×642
215×642
215×692
215×712
215×802
215×842
Al
215×390
215×390
215×390
215×390
215×400
215×410
215×420
215×440
215×455
215×485
215×500
215×520
215×560
215×590
215×610
215×762
～
215×852
215×892
～
～
Internal dimension of wallange
W2×H2(≥)
Cu
～
～
～
140×90
140×100
～
140×105
140×115
140×125
140×140
140×155
140×170
140×200
140×235
140×275
140×352
140×352
140×402
140×422
140×512
140×552
Al
140×100
140×100
140×100
140×100
140×110
140×120
140×130
140×150
140×165
140×195
140×210
140×230
140×270
140×300
140×320
140×472
～
140×562
140×602
～
～
Table1-15
Fig1-19
15
Expansion length is the transition section
compensating for thermal expansion, it is normally
set each 60m in linear distance.
This transition section is used for reducing
busbar size to the final load, it provides users
with more economic power transmission and
distribution method.
Transposition section is the transition parts used for changing phase sequence of the busbar; its min-
imum size is 1500mm. The phase sequence of both sides has to be provided by the customer.
Expansion length Reducer
Transposition section
Note:
All the dimensions provided are for standard products. Please contact our engineers for customized
products' dimensions.
Note: H2=H+70mm (H is busbar height)
Fig1-20 Fig1-21
Fig1-22
16
Bus plugLM bus plugs are used to apply electrical power directly to the load from the busway system. The
protection component in abus plug can be either a circuit breaker or fuse.
Circuit breaker bus plugs- Circuit breaker protection is available for a current between 16A~1000A.
- GE circuit breakers are provided as standard offering.
- 3-Pole or 4-Pole circuit breakers may be installed in the plug for load protection, including accessories
of circuit breakers such as rotary handles, shunt release, thermal magnetic release and leakage-current
protection module.
Fused bus plugsFused bus plugs are made specically per customer's project specications.
Please contact with our local sales ofce for ordering information.
- Unique fail-safe base pins: the plug is equipped with a positioning device that prevents incorrect
installations.
- Base lugs: all the lugs are silver-plated to improve their electrical conductivity.
Physical data of plug (LWH) mm
Note: The added 70mm is for the rotary handle installation space.
*For any nonstandard dimension ,please contact with us.
Operation mode
Manual operating mechanism
Rotary operating mechanism
Rated current (A)
100
160-250
400
630
800-1000
100
160-250
400
630
800-1000
Dimension of plug (L×W×H) mm
450×240×260
550×260×280
650×300×300
750×340×320
900×400×460
450×240×（300+70）
550×260×（320+70）
650×300×（340+70）
750×340×（360+70）
900×400×（500+70）
Table1-16
Fig1-23
17
LZ series compact busway
System introductionBased on the technology of LM and fully absorb-
ing the latest technology in today’s world, Wetown
devotes to R&D LZ series compact busway with 20
years of manufacturing experiences. LZ series com-
pact busway is of features such as novel structure,
beautiful shape, reliable performance, easy installation,
and economical cost. LZ busway with technology ad-
vanced in the world are widely applied in high buildings, intelligent buildings, industrial plants, hospitals and
other important projects.
Product features
Sandwich structure
·Conductors with smaller space with better heat dissipation and more time of running at lower temperature
·Compact structure with less chimney effect
·Width of 125mm with a smaller space occupation
·better capacity of current loading due to the special structure ,more convenient for installation
"Two-piece" enclosure structure
Traditional busbar enclosure is normally composed of four
parts, while "Two-piece" enclosure of LZ with overall structure has
the following advantages:
· Sandwich structure and "Two-piece" enclosure makes the overall
heat transmission with better heat dissipation and more current
carrying capacity.
· "Two-piece " enclosure with less duct entry to busway, isolated
protection rating up to IP66.
High-quality conductor
·Higher -purity copper conductor material, imported from Chile in South America.
·Silver-plated copper bar surface .more helpful to current loading capacity with less corrosion or resis-
tance.
Reliable insulation
DuPont polyester film as the insulating material
for LZ series busway, works well at B-130 ℃ .
Fire-resistant surface can meet the requirements of
UL 94 standards .
18
Light aluminum alloy enclosure
·The enclosure of LZ busway, with aluminum alloy profile, is of high mechnical strength and can be applied
in different environments.
·Aluminum alloy enclosure has passed 1000-hour salt spray test .
·The heat dissipation of aluminum alloy enclosure is much better than the normal steel enclosure.
·Aluminum alloy is of excellent conductivity performance with 50% grounding capacity.
· Aluminum alloy is made of weak magnetic material to decrease the effect of eddy current and hysteresis
loss.
Environment
·To obtain KEMA certification
·To adopt LSZH material in accordance with ROHS
·Recycling rate for all parts up to 95% to 98%
Automatic assembly
A new line of automatically self-piercing riveting production, BOLLHOFF, made in Germany, greatly
improving the efficiency and quality of assembly.
High compact and low reactance
It is the most compact and intensive busway which applies higher-quality busway with lower voltage
drop and less power loss.
Large capacity
Maximum current is up to 1600A .
Joint unit
·Single-bolt clamping mechanism promotes installation speed twice as fast as the more traditional connectors.
· To adopt double-headed bolt with torch control and indicator function. the indicator will fall off when the
torch value is up to the specified value by using 19mm normal torque when installation.
·To Fasten the joint with single bolts and bowl washers helps to disperse the pressure in the contact surface.
·Conductive contact surface with silver or tin plating treatment provides more effective reducing of the contact
resistance.
·To add the embossing grooves on the edge of Insulation board helps increase the creepage distance
·Temperature Indicator reminds of the timely inspection because of the high temperature.
Unique anti-phase installation
Unique anti-phase installation method
can avoid the wrong installation.
19
Technology parameters
Current
(A)
400
630
800
1000
1250
1600
2000
2500
3150
4000
5000
6300
Numbers of per
phase
1
1
1
1
1
1
1
1
2
2
2
3
AC resistance per
m (mΩ)
0.132
0.099
0.072
0.056
0.044
0.032
0.025
0.018
0.016
0.012
0.009
0.008
Inductance per
m (mΩ)
0.036
0.031
0.026
0.023
0.020
0.016
0.014
0.010
0.009
0.007
0.004
0.002
Indepance per
m (mΩ)
0.137
0.104
0.076
0.061
0.048
0.036
0.028
0.021
0.018
0.014
0.010
0.008
Voltage drop (V/
m)
0.09
0.11
0.11
0.11
0.10
0.10
0.10
0.09
0.10
0.10
0.08
0.08
Voltage
loss
2.5%
2.9%
2.8%
2.8%
2.7%
2.6%
2.6%
2.4%
2.6%
2.6%
2.2%
2.2%
Current (A)
400
630
800
1000
1250
1600
2000
2500
3150
4000
5000
6300
Short-time
withstand
current
(KA)
30
50
65
100
150
Peak withstand
current (KA)
63
105
143
220
330
IP
IP42/IP54
IP65/IP66
without
plugs
IP42/IP54
with plugs
Rated
insulation
voltage(V)
1000
Rated working
voltage (V)
690
Rated inpulse
withstand voltage
(V)
8000
Table2-1
Table2-2
20
GM cast resin buswaySystem introduction
·To be appied in key projects where continuous power supply is needed.
·To be appied in public facilities where life and property safety is crucial.
·To be appied in tall buildings where fire-fighting is difficult.
·To be appied in hostile surroundings easy to be explosive or corrosive.
·To be appied in humid environment such as in the trench, under the water and etc.
Product features
·Break voltage: up to 5000V
·Air tight and watertight wall bushings
·Fire resistance:950℃ for 1.5 hrs (no toxic gas releases)
·Nonmetallic external, free of casing electro-erosion
·High short circuit withstand current
·High overloading performance
·Low voltage drop and power consumption
·High mechanism strength
·Maintenance free
·Non-chimney effect
·Full-insulated with cast resin
·Small external dimension
·All-weather environment
21
Comparisons
Technology parameters
Withstand voltage (V)
IP
Heat dissipation
Chimney effect
Dimension
Short-circuit withstand
Over loading performance
Working environment
Air-insulated busway
2500
IP30-54
Bad
Exist
Big
Good
Good
Indoor and dry site
Compact busway
3750
IP40-65
Good
None
Small
Good
Good
Indoor and dry site
GM series cast rasin busway
5000
IP68
Good
None
Small
Excellent
Excellent
All-weather
System common criteria
Current (A)
Rated working voltage (V)
Rated insulated voltage (V)
Frequency (HZ)
Wire
IP
Conductor/ Purity
Enclosure material
Enclosure colour
Installation
IEC60439-1～2，IEC60331，IEC60332，GB7251.1~2005，GB7251.2~2006
GB/T12666.6-1990，CECS170-2004，JB/T9639-1999
250～6300
400V/690V
690V/1000V
50
3 phase 4 wire(100%N)/ 3 phase 5 wire (50%PE)
IP68
Copper /99.95%
Epoxy resin
Light gray/light yellow
Horizontal installation/Vertical installation
Table3-1
Table3-2
22
Rated current（A）
250
400
630
800
1000
1250
1350
1600
1700
2000
2500
3150
4000
5000
6100
6300
Resistance
(mΩ/m)
0.220
0.157
0.096
0.069
0.051
0.038
0.036
0.030
0.027
0.025
0.019
0.015
0.012
0.008
0.006
0.005
Reactance
0.097
0.093
0.085
0.025
0.019
0.014
0.013
0.011
0.010
0.009
0.007
0.006
0.005
0.004
0.003
0.002
Impedance
0.240
0.182
0.128
0.073
0.054
0.040
0.038
0.031
0.029
0.027
0.020
0.016
0.013
0.009
0.007
0.005
Voltage drop(V/m)
0.1
0.1
0.1
0.1
0.11
0.11
0.11
0.11
0.11
0.11
0.11
0.12
0.12
0.13
0.14
0.15
Resistance, reactance, impedance and voltage drop (50Hz)
Dimension and weight
Rated current
(A)
250
400
630
800
1000
1100
1250
1350
1600
1700
2000
2500
3150
4000
5000
6100
6300
3 phase 4 wire
Width (mm)
107
107
107
107
107
107
107
107
107
107
107
107
190
190
190
292
292
Height (mm)
64
74
84
99
114
124
134
144
164
174
194
254
189
229
284
214
229
Weight (Kg)
15.28
18.85
22.42
27.77
33.13
37.59
40.26
43.83
50.95
54.53
61.67
83.08
101.33
125.43
158.58
183.43
197.88
3 phase 5 wire
Width (mm)
123
123
123
123
123
123
123
123
123
123
123
123
209
209
209
335
335
Height (mm)
64
74
84
99
114
124
134
144
164
174
194
254
189
229
284
214
229
Weight (Kg)
17.83
21.93
26.04
32.22
38.38
42.49
46.59
50.71
58.94
63.04
71.27
95.93
112.73
139.58
176.50
201.41
217.30
Table3-3
Table3-4
23
Straight length
L=1000,2000,3000,4000
Flanged end
1. Straight length
2. ClampⅠ
3. Bolt
4. ClampⅡ
5. Insulated outside board
6. Ccopper bar
7. Iusulated inside board
Physical data
24
Flatwise elbow
L1≥300, L2≥300
Edgewise elbow
L1≥400, L2≥400
Flatwise elbow offset
L1≥300, L2≥350, L3≥300
Edgewise elbow offset
L1≥400, L2≥450, L3≥400
Edgewise and flatwise elbow
L1≥300, L2≥400, L3≥400 L1≥300, L2≥400, L3≥400
25
Commutation unit
L =590 B =350 H =W+185（W is the width of copper bar ）＇ ＇ ＇
Edgewise elbow tee
L1≥400, L2≥400, L3≥400
Flatwise elbow tee
L1≥550, L2≥550, L3≥550
Vertical spring support device
26
Wind power buswaySystem introduction
WLK、WLH series wind power busway (hereafter
refers to busduct) is applied for wind power unit
with 750kw or above generation capability.
·Air-insulated type；
·The environmental protection index of original materials can meet the requirements of ROHS；
·IP ratings up to IP54；
·Product usage life is over 40 years；
·Tightening bolt with low temperature resistant alloy material；
·Rated voltage: 690V Insulation voltage: 1000V；
·Better performance price ratio than wind power；
WLH series wind power busway（≤1000A）
WLK series wind power busway（＞1000A）
27
Product features
1) Air insulation for wind power busway,wrapping with
resistance insulation mylar and insulation support for the
conductor to increase the insulation rating.
2) Wind power busway adopts al-alloy rectangle
conductor;
Compound plating for the conductor surface to improve
anti-oxidation;
Silver-plated connection reducing contact resistance
and improving conductive capability.
3) Wholly a-alloy and steel-aluminum hybrid
construction for the enclosure to improve heat
dissipation, also eliminate bow wave and guarantee
loop distribution.
4) Wind power busway surface coating adopting
imported static powder with 1000 salt fog test and 40
years life.
5) Wind power busway installed in the drum adopting
support with elastic performance to keep average load
and eliminate the positition error.
Special designed elastic part eliminating the vibration
caused by drum.
28
6) Each wind power busway unit adopting
modularization design. With the dimension of
drum to install the subsections sequently;
Special quick joint is offered to guarantee fast
connection.
7) Cable transfer box is applied for the quick
connection between wind power device and
cable.
8) Double headed torque limiting construction to
ensure fast assembly; Special bowl washer and
nut are free of Maintenance; Alloy material for
the bolt.
9) Compared with the cable, wild power busway
can be equipped with drum before delivery,
which saves time and expense.
29
Wind Power Alternative Plan
Comparison between busduct and cable
1
2
3
4
5
6
7
8
Currentcarryingcapability
DissipationPerformance
Occupyingarea
Overloadcapability
FireRetardant
Performance
Conductivity
Installation
Economiccalculation
Wind Power Busway
Large one-way current carrying: 500A～4000A
Good heat dissipation by conduction with goodheat convection
Small area occupation with small size
Excellent overload capability, heat resistance upto class B (130℃)
Excellent fire retardant capability
Excellent and reliable qualityLow loop loss, large anti-harmonic capability,
metal enclosure with wholly grounding
Adopt by installating sections sequently
Resonable price withhigh performance price ratio
Wind Power Cable
Limited single-core current carrying capability(＜400A),multiple cables for each phase
Poor cable heat dissipation as wrapping withisulating material
Large area occupation with multiple cablestogther
Poor overload capability, heat resistance up toclass A(105℃)
Poor fire retardant capability
General QualityLarge loop loss and high voltage drop
Adopt integral hoisting with whole multiplecables and long lines
Low performance price ratio with specific cables
Table4-1
30
Technical parameters
Wind Type
Busduct Type
Standard
Environmental Temperature
IP Ratings
Rated Insulation voltage (AC,V)
Rated working voltage (AC,V)
Rated Working Current (A)
Rated Peak Tolerance Current (KV)
Rated Short-term Tolerance Current (KV)
Rated Frequency (Hz)
Air clearance
Creepage
distance
The high-point of temperature rise on connections of
busway (K)
The high-point of temperature rise on tangible
enclosures and covers (K)
Material group
Overvoltage categories
Pollution degree
Protect Type
Wire
Dielectric Strength (V/min)
Insulation Resistance(MΩ)
Between energized conductors
Between energized conductor and
enclosure
Between energized conductors
Between energized conductor and
enclosure
1.5/2MW Double Feeder Wind Power Unit
WLK
IEC60439-1、2;GB7251.1、2
-40℃~+50℃
IP31、IP40、IP54 (Optional)
1000/1500
690/1000
1300、1400、1800、2000 (Optional)
105～176
50～80
50～60
≥20
≥18
≥25
≥22
70
30
Ⅱ
Ⅰ □, Ⅱ □, Ⅲ □, Ⅳ ■
Ⅲ
Ⅰ ■, Ⅱ □, Ⅲ □
L1＋L2＋L3＋PEN
3750/AC, 1min
≥20 (Phase-to-phase or phase-to-ground,1000MΩ)
WLH
690/1000
500、630、800 (Optional)
63～85
30～40
≥20
≥18
≥25
≥22
70
30
Table4-2
31
Medium voltage buswayProduct installation diagram
Product type and definition
/
Features cade
Cooling method
Rated voltage（kV）
Rated current（A）
Busway typeQLFM Series IPBGFM Series NPBGGM Series Segregated Endosed Bus
7, neutral cabinet
8, PT-LA Cabinet
9, generator circuit breaker
4, excitation transformer
5, start (standby) Transformer
6, generator outlet box
1, generator
2, the main transformer
3, station transformer
Q Partial coolingJ Forced coolingZ Natural cooling
Ⅴ Busway drying deviceⅣ Heat tracing device
ⅢMicro-pressure coexisted withfost saturation reactor
ⅡFast saturation reactorⅠMiero-pressure
NPB
Excitation transformerenclosed bus Excitation cublicle
AC excitation bus
DC excitation busBranch IPB
Main cirucuit IPB
32
QLFM series isolated phase bus
Main circuit Site branch circuit Generator connection structure
Site transformerconnection structure
Main transformerconnection structure
Excitation transformerconnection structure
PT-LA Cabinet connection structure CT assembly structure
ApplicationQLFM series Isolated phase bus (IPB for short) Isolated phase enclosed bus is a widely used
in Power Plant of 50MW and above, with branch leads to loops, and plant high-current loop
transmission device.
33
Product features
1.Produce all the company's style from the phase enclosed bus shell and the conductor are used welded
aluminum rolling conductor support insulator was inverted "Y"-type arrangement is conducive to improving the
insulator by the force status, bus structure, good stability.
2.Bus conductor with its mechanical protection, which can effectively remove moisture, dust and foreign
objects due to earth fault; sub-phase closed structure to avoid the occurrence of inter-phase short circuit.
3.Bus conductors conductive shell when the value will be generated in the opposite direction with the
conductor current is aost equal to the induced current, the magnetic field generated by the current induced
magnetic fields cancel each other out with the conductor, making the remainder of the magnetic field outside
the shell greatly reduced, so that bus around the steel or reinforced concrete is aost non-existent heat loss or
temperature rise.
4.Bus and the device interface end with disc insulator (SMC suppressed) closed up to IP54 protection
grade is closed over the internal bus can be used to make micro-pressure run, we can dispel this moisture,
dust, etc., preventing insulator Gel .
5.All with type isolated phase enclosed bus inside the shell in the same phase (including the branch
circuit) along the length direction of all the connectivity, all in the bus terminal by short-circuit boards will be
connected into a complete shell of each phase of electrical pathways, so that bus Shell basically at the other
potentials, grounding greatly simplified.
6.When the bus line length of 20 - 30m, or set the case in the underlying settlement at bellows
expansion joint, enabling horizontal and vertical degrees of freedom adjustment in both directions, not only to
meet the bus due to thermal expansion and contraction caused by stretching requirements, you can also right
because the error caused by foundation settlement to compensate.
7.At the junction with the equipment, busbar installation of insulating rubber bellows shell in order to
achieve electrical isolation, to avoid the circulation of the equipment bus shell impacts; internal conductor
connections are using copper compiled soft-link to eliminate the vibration generated when equipment
operation the impact on the bus.
8.Bus interface and equipment at current transformer according to need to set up, easy to measure and
protection.
Through-wall sealing and expansion joint structure Removable expansion joint structure
34
Technology parameters
Rated voltagerange(kV)
≤24
≤24
≤24
≤24
≤24
≤24
≤24
≤24
≤24
≤35
Rated current range(A)
≤2000
≤2500
≤4500
5000~8000
8000~9000
9000~10000
10000~14000
20000~24000
24000~26000
27000~30000
Insulationratings(kV)
75/150
75/150
75/150
75/150
75/150
75/150
75/150
75/150
75/150
100/185
Dimesnsions(mm)
Enciosure
Φ650
Φ700
Φ750
Φ750
Φ850
Φ900
Φ1050
Φ1450
Φ1500
Φ1650
Conduct
Φ150
Φ150
Φ200
Φ300
Φ350
Φ400
Φ500
Φ900
Φ950
Φ1000
Distance between phases（S）
≥900
≥950
≥1000
≥1000
≥1100
≥1150
≥1300
≥1800
≥1900
≥2000
Height（H）
490
515
540
540
590
615
690
890
915
990
Weight（Kg/m）
213
222
252
283
316
367
480
845
890
980
Mounting diagram of bus
Table5-1
35
IPB applied in project
Scope of Supply
According to user needs, wetown can provide the following equipment and accessories:
1.Away from the phase enclosed bus: From the generator terminal qualifying start to the main transformer
low voltage side leads to the main circuit bus terminal; self-loop leads to the station transformer high-voltage
side of the excitation transformer and voltage transformer, lightning arrester cabinets, excitation change
cabinets, load switch cabinet and other branch circuits.
2.From the phase enclosed bus ancillary equipment cabinets: voltage transformer cabinet, arrester
cabinets, neutral grounding cabinets, counters excitation changes, load switch cabinet and so on.
3.Busbar current transformer.
4.Measuring hydrogen and hydrogen emission devices.
5.Intelligent micro-pressure devices, hot air maintenance device or air-drying devices, electrical heating
device, silica gel dehumidifying unit ventilator.
6.On-line or portable infrared temperature measurement devices, platinum resistance temperature device.
7.Install hot-dip zinc steel structure.
8.Welding machine, welding wire and so on.
9.Air-cooled unit.
36
GFM series non-segregated phase bus
GFM series non-segregated phase bus(NPB for shart) for AC 50 ~ 60Hz, voltage 3.6 ~ 40.5kV, rated
current of 1000 ~ 6800A in the high-voltage transmission system.
Its main applications:
1. Generators and transformers between the electrical
connection;
2. Transformer and high voltage electrical connection
between the power distribution cabinet;
3. AC main exciter with the electrical connection
between the rectifier cabinet
4. Excitation switchgear and motor rotor slip rings for
electrical connection;
5. Other high-voltage equipment, electrical connection between the main circuit.
A total of box plants Bus Application Preparation of variable loop of the Kai box Bus
Features
1.The series busbar has an excellent resistance to short-circuit performance, due to a weak magnetic
aluminum or steel shell of protection, which can effectively reduced the loading of structure of swirl or
circulation caused by heat, lower bus shell temperature, reducing power consumption, increased carrying
capacity and reduce short-circuit power.
Applications
37
2.This series of advanced bus structures, installation and maintenance holes may be placed in the top or
bottom of busbar, for high-current indoor busbar in the shell on both sides and bottom may be equipped with
ventilation shutters, in order to enhance heat dissipation and lower temperature rise.
3.When the bus line lengths up to 20 ~ 30m, the Bus expansion joint to meet the set causes thermal
expansion and contraction due to temperature, Can also be caused by the foundation settlement to
compensate for the error.
4.Equipment operation in order to eliminate the vibration generated when the impact on the bus, bus
connections and equipment are prepared using copper soft connection, and the shell was inserted between
the rubber pad to absorb shock; for the bus body, can be installed in the system damping device, for
insulators and conductors to achieve flexible support, can avoid mechanical vibrations produced by the device
and the seismic waves caused by damage to the enclosed bus.
5.Bus depends mainly on thermal radiation heat, in order to enhance heat dissipation effect, in the bus
outside the light gray paint surface coating to reduce the absorption of visible light; in bus black inner surface
of spray paint to enhance the internal heat of the shell of radiation, while preventing the corona .
6.In order to avoid the winter indoor and outdoor temperature difference caused by condensing
phenomena, wearing a cut off wall is set at installation, so that outdoor and indoor bus completely isolated.
7.In order to improve bus permission to run temperature rise to prevent the electrochemical corrosion of
coastal open space, as well as serious air on the joints electrolytic corrosion and reduce contact resistance, all
the joints are used silver-plated treatment, to allow the temperature rise of up to 65k, much higher than the
work of when the actual temperature.
8.In order to avoid the bus self-vibration frequency of resonance frequency range (for a single bus of its
resonance frequency range of 35 ~ 135Hz), and to act on the bus on the electric power decreases, preferred
insulator models, specifications and strength grade, and reasonably set the span between the insulators.
9.In order to monitor the temperature of the removable connector, in transformers, generators and power
distribution equipment and busbar connections can be set sealed observation window, through the showing
warm patch or far-infrared temperature measurement device to directly measure the temperature, and the
supporting intelligent on-line monitoring busbar systems can be real-time monitoring operation of the system,
greatly facilitated the work of operating personnel of the inspection and maintenance to improve the safe
operation of the closed busbar level.
38
System common criteria
Rated voltage（kV）
Rated insulated voltage（kV）
Rated current（A）
1000
1600
2000
2500
3000
3500
4000
4500
IEC364-5-54，GB/T8349-2000、JB/T9639-1999
3.15
25/40
Dimension（W×H）（mm）
Ⅰ800×500Ⅱ1000×440
Ⅰ800×500Ⅱ1000×440
Ⅰ800×500Ⅱ1000×440
Ⅰ800×500Ⅱ1000×440
Ⅰ800×500Ⅱ1000×440
Ⅰ800×500Ⅱ1000×440
Ⅰ800×500Ⅱ1000×440
Ⅰ800×500Ⅱ1000×440
6.3
32/60
Ⅰ1200×560Ⅱ1400×500
Ⅰ1200×560Ⅱ1400×500
Ⅰ1200×560Ⅱ1400×500
Ⅰ1200×560Ⅱ1400×500
Ⅰ1200×560Ⅱ1400×500
Ⅰ1200×560Ⅱ1400×500
Ⅰ1200×560Ⅱ1400×500
Ⅰ1200×560Ⅱ1400×500
10.5
42/75
Ⅰ1200×560Ⅱ1400×500
Ⅰ1200×560Ⅱ1400×500
Ⅰ1200×560Ⅱ1400×500
Ⅰ1200×560Ⅱ1400×500
Ⅰ1200×560Ⅱ1400×500
Ⅰ1200×560Ⅱ1400×500
Ⅰ1200×560Ⅱ1400×500
Ⅰ1200×560Ⅱ1400×500
Table6-1Note:Groove profile can be applied in NPB over 4000A.
Technology parameters
Ⅰ Ⅱ
39
Bus fixed-form sketch
AC and DC excitation NPB
Rated voltage（V）
Rated power frequencywithstand voltage（kV）
Rated current（A）
AC Excitation NPB
Ⅰ
DC Excitation NPB
Ⅱ
400~2250
2500~3250
3500~6300
5000~6300
400~2250
2500~3250
3500~6300
5000~6300
380
2.5
Dimension（W×H）（mm）
copper bar
550×400
650×400
700×500
450×400
500×400
600×500
aluminum bar
550×400
650×400
700×500
450×400
500×400
600×500
1000
4.2
copper bar
650×400
750×400
800×500
550×400
600×400
700×500
aluminum bar
650×400
750×400
800×500
550×400
600×400
700×500
1500
5.4
copper bar
700×400
800×400
900×500
500×400
650×400
800×500
aluminum bar
700×400
800×400
900×500
500×400
650×400
800×500
Table6-2
AC excitation NPB DC excitation NPB
Enbedded part
40
System common criteria
Rated voltage（kV）
Rated insulated voltage（kV）
Rated current（A）
1000
1600
2000
2500
3000
3500
4000
4500
IEC364-5-54，GB/T8349-2000、JB/T9639-1999
3.15
25/40
Dimension（W×H）（mm）
Ⅰ800×500Ⅱ1000×440
Ⅰ800×500Ⅱ1000×440
Ⅰ800×500Ⅱ1000×440
Ⅰ800×500Ⅱ1000×440
Ⅰ800×500Ⅱ1000×440
Ⅰ800×500Ⅱ1000×440
Ⅰ800×500Ⅱ1000×440
Ⅰ800×500Ⅱ1000×440
6.3
32/60
Ⅰ1200×560Ⅱ1400×500
Ⅰ1200×560Ⅱ1400×500
Ⅰ1200×560Ⅱ1400×500
Ⅰ1200×560Ⅱ1400×500
Ⅰ1200×560Ⅱ1400×500
Ⅰ1200×560Ⅱ1400×500
Ⅰ1200×560Ⅱ1400×500
Ⅰ1200×560Ⅱ1400×500
10.5
42/75
Ⅰ1200×560Ⅱ1400×500
Ⅰ1200×560Ⅱ1400×500
Ⅰ1200×560Ⅱ1400×500
Ⅰ1200×560Ⅱ1400×500
Ⅰ1200×560Ⅱ1400×500
Ⅰ1200×560Ⅱ1400×500
Ⅰ1200×560Ⅱ1400×500
Ⅰ1200×560Ⅱ1400×500
Table6-3
GGM series segregated enclosed bus
GGM series segregated enclosed bus is a current up to 4500A, voltage up to 10.5kV products, the three
phases are separated individually to form three separate space, resulting in a smaller external magnetic field,
but also to avoid the white short-circuit, other Electrical boxes were closed with the GFM-based bus.
Main technical parameters and dimensions
Ⅰ Ⅱ
41
牌号
Cu+Ag
T1
≥99.95
T2
≥99.90
TU1
≥99.97
TU2
≥99.95
a
b
3~20
15~110
Chemical composition of copper bar, shaped copper and
copper rod is in accordance with GB/T5231-2001 standard.
The main ingredient table(%)
1.Cross-section shown in Figures:
2. Dimension scope
Copper bar
Copper bar
42
1. Cross-section shown in figures：
2. Dimension scope：
3. Standard：
Products is in accordance with YS/T615-2006 standard or
customer's requirements.
1. Cross-section shown in figures：
2. Standard：
The dimension tolerances, chemical specialty and electrical
capability can be in accordance with customer's requirements.
Shaped copper
Copper rod
Round
Φ6~Φ70
Square, Rectang & Hexgon
Diagonal≤70
43
