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Eaton's Cooper Power series polymer- and porcelain-housed intermediate and station-class surge arresters feature enhancements in arrester design, including increased cantilever strength and improved energy handling capability.
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| Ratings |
||||
| Arrester characteristic | AZES |
AZEH |
AZEX |
|
| System application voltages |
3-345 kV |
3-230 kV |
3-138 kV |
|
| Arrester voltage ratings |
3-360 kV |
3-240 kV |
3-108 kV |
|
| Rated discharge energy, (kJ/kV of MCOV) |
||||
| Arrester ratings |
3-108 kV |
3.4 |
5.6 |
|
| 120-240 kV |
5.6 |
8.9 |
– |
|
| 259-360 kV |
8.9 |
– |
– |
|
| System frequency |
50/60 Hz |
50-60 Hz |
50-60 Hz |
|
| Impulse classifying current |
10 kA |
10 kA |
10 kA |
|
| High current withstand |
100 kA |
100 kA |
100 kA |
|
| Pressure relief rating, kA rms sym |
Metal-top designs |
65 kA |
65 kA |
65 kA |
| Cubicle-mount designs |
40 kA |
40 kA |
– |
|
| Cantilever strength (in-lbs)* |
Metal-top designs duty-cycle ratings |
|||
| 3-48 kV |
90,000 |
90,000 |
90,000 |
|
| 54-109 kV |
120,000 |
90,000 |
120,000 |
|
| 120-240 kV |
120,000 |
– |
||
| *Maximum working load should not exceed 40% of this value. |
||||
| Note: Terminal load limit for cubicle mount designs should not exceed 100 pounds. Excessive loading could lead to a shortened arrester life. |
||||
| Arrester characteristic |
Rating |
|
| Arrester voltage ratings (kV) |
3-240 |
|
| Cantilever strength (in-Ibs) |
Ultimate |
MDCLStatic** |
| US (3-108 kV) |
15,000 |
6,000 |
| UH (3-108 kV), US (120-240 kV) |
20,000 |
8,000 |
| UX (3-108 kV), UH (120-240 kV) |
35,000 |
14,000 |
| Rated discharge energy (kJ/kV of MCOV) |
Single Impulse Rating |
|
| US (3-108 kV) |
3.9 |
|
| UH (3-108 kV), US (120-240 kV) |
6.2 |
|
| UX (3-108 kV), UH (120-240 kV) |
10 |
|
| High current withstand* (kA) |
100 |
|
| Impulse classifying current (kA) |
10 |
|
| Pressure relief rating (kA rms sym.) |
63 |
|
| System frequency (Hz) |
50/60 |
|
| * High current, short duration withstand (100 kA, 4/10 µs) |
||
| ** Maximum design cantilever load–static or maximum working load is 40% of the ultimate |
||
| Arrester characteristic |
Rating |
|
| Arrester voltage ratings (kV) |
3-360 |
|
| Double impulse discharge energy rating |
||
| UXL (3-360 kV) |
15 kJ/kV of MCOV* |
|
| System frequency (Hz |
50/60 |
|
| Impulse classifying current (kA) |
10 |
|
| High current withstand** (kA) |
100 |
|
| Pressure relief rating (kA rms sym.) |
63 |
|
| Cantilever strength (in-Ibs) |
Ultimate |
MDCLStatic*** |
| UXLB (3-360 kV) |
80,000 |
32,000 |
| UXLC (132-360 kV) |
92,000 |
36,800 |
| * Meets Class H energy levels per IEEE Std C62.11™-2012 standard |
||
| ** High current, short duration withstand (100 kA, 4/10 µs) |
||
| *** Maximum design cantilever load — static or maximum working load is 40% of the ultimate. |
||
Visit this page for information on earlier models.
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