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INTRODUCING THE EAGLE 18-PULSE AUTOTRANSFORMER |
US PATENT NUMBER: 9,966,868
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The GOLD STANDARD In 18-Pulse Autotransformers |
Norlake Eagle 18-pulse mitigates the harmonic distortion associated with Variable Frequency drives, with our 18-pulse autotransformer assembly.
Our new design is engineered for maximum efficiency with the Industry's smallest footprint. Reliable results, high quality and quick delivery, all at a lower cost - makes the Eagle autotransformer the new 18-pulse solution.
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QUALITY ASSURANCE TESTING |
Click image above to view as larger image |
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Voltage Ratio |
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Dielectric Test |
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Resistance Test |
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Open Circuit Voltage Test |
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Excitation Current test |
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Watts Measurement |
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100% Tested and Inspected |
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DESIGN FEATURES |
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480V Input at 427V L-L Output |
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Designed in accordance with IEEE C57.12.91 & C57.12.01 |
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Recognized UL 1561. File number E157466 |
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Aluminum Windings |
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Sizes range from 20 HP to 800 HP |
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Class R 220º C Insulation with 200º C |
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Normally Closed Thermal Switch |
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300-500 LFM required depending on HP |
BENEFITS |
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Stocking, Kanban and Consignment programs available |
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Superior Harmonic Mitigation to meet IEEE 519 for use in 18-pulse VFD Applications |
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Terminal boards on 30HP & below |
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Bus Bar terminations above 30 HP with Terminal Board option |
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Customization Available |
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Temperature Safety Switch installed in all three coils |
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Cost Contained Materials used for Manufacture |
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The Highest Quality at an Outstanding Value |
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Industry Leading Efficiency |
EAGLE 18-PULSE AUTOTRANSFORMERS
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UNIT DIMENSIONS* |
MOUNTING* |
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HP |
Catalog
Number |
Xfmr Height
(HT) |
Width
(BB) |
Depth
(CC) |
Height
(AA) |
Width
(EE) |
Depth
(DD) |
Weight
(lbs) |
Watts
Loss |
Air Flow
LFM |
20 |
ST-18020480A |
16.5 |
16 |
11.75 |
22.25 |
10.500 |
6.500 |
173 |
400 |
300 |
30 |
ST-18030480A |
16.5 |
16.5 |
12.75 |
22.25 |
12.000/14.250 |
8.000 |
174 |
735 |
300 |
40 |
ST-18040480A |
15.5 |
18.5 |
12.75 |
22.25 |
14.000/16.000 |
5.500 |
210 |
890 |
300 |
50 |
ST-18050480A |
16.5 |
18.75 |
12.75 |
25 |
14.000/15.500 |
5.375/5.750 |
222 |
1141 |
300 |
60 |
ST-18060480A |
15.75 |
19.75 |
12.75 |
25 |
14.000/15.750 |
5.625/6.500 |
306 |
1190 |
300 |
75 |
ST-18075480A |
17.5 |
20.25 |
14 |
27.25 |
16.875 |
6.875 |
322 |
1660 |
300 |
100 |
ST-18100480A |
19.5 |
21 |
14 |
29.25 |
17.500 |
6.500 |
410 |
2045 |
300 |
125 |
ST-18125480A |
22.75 |
21.5 |
14 |
32.25 |
16.000 |
7.500 |
436 |
2262 |
300 |
150 |
ST-18150480A |
22.5 |
22.25 |
14 |
31.75 |
19.625 |
7.625 |
466 |
2940 |
300 |
200 |
ST-18200480A |
22.5 |
26 |
17 |
32.25 |
21.000/21.750/24.000 |
7.500/8.000 |
610 |
3810 |
300 |
250 |
ST-18250480A |
25 |
28.5 |
16 |
35.75 |
24.125 |
8.500 |
713 |
3920 |
300 |
300 |
ST-18300480A |
27 |
28 |
17 |
37.75 |
24.125 |
9.25 |
768 |
4155 |
300 |
350 |
ST-18350480A |
27 |
28 |
20 |
37.75 |
24.000 |
10.000 |
915 |
5175 |
500 |
400 |
ST-18400480A |
27 |
28.5 |
21 |
40.25 |
25.000 |
10.000 |
975 |
5945 |
500 |
450 |
ST-18450480A |
28.75 |
31 |
22 |
41.5 |
24.000 |
10.000 |
1145 |
6580 |
500 |
500 |
ST-18500480A |
28.75 |
31 |
22 |
41.5 |
28.000 |
10.000 |
1320 |
7065 |
500 |
600 |
ST-18600480A |
28 |
33.25 |
24 |
43.5 |
28.000 |
10.500 |
1400 |
7515 |
500 |
700 |
ST-18700480A |
28 |
35.5 |
27 |
43.75 |
28.000/32.000 |
11.500 |
1480 |
8105 |
500 |
800 |
ST-18800480A |
29.5 |
36 |
30 |
48.25 |
28.000/32.000 |
14.000 |
1960 |
7980 |
500 |
*measurements depicted above are in inches
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