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Eaton’s Cooper Power series distribution arresters provide superior overvoltage protection for any electric distribution system. They have set the standard for design and manufacturing of polymeric distribution-class arresters up to 36 kV.
| System voltage (kV rms) |
Recommended arrester rating per IEEE Std C62.22 standard (kV rms) |
|||
| Nominal |
Maximum |
Four-Wire Wye MultiGrounded Neutral |
Three-Wire Wye Solidly Grounded Neutral |
Delta and Ungrounded Wye |
| 2.4 |
2.54 |
— |
— |
|
| 4.16Y/2.4 |
4.4Y/2.54 |
3 | 6 | 6 |
| 4.16 |
4.4 |
— |
— |
6 |
| 4.8 |
5.08 |
— |
— |
6 |
| 6.9 |
7.26 |
— |
— |
9 |
| 8.32Y/4.8 |
8.8Y/5.08 |
6 | 9 | — |
| 12.0Y/6.93 |
12.7Y/7.33 |
9 | 12 | — |
| 12.47Y/7.2 |
13.2Y/7.62 |
9 | 15 | — |
| 13.2Y/7.62 |
13.97Y/8.07 |
10 | 15 | — |
| 13.8Y/7.97 |
14.52Y/8.38 |
10 | 15 | — |
| 13.8 |
14.52 |
— |
— |
|
| 20.78Y/12.0 |
22Y/12.7 |
15 | 21 | — |
| 22.86Y/13.2 |
24.2Y/13.87 |
18 | 24 | — |
| 23 |
24.34 |
— |
— |
|
| 24.94Y/14.4 |
26.4Y/15.24 |
18 | 27 | — |
| 27.6Y/15.93 |
29.3Y/16.89 |
21 | 30 | — |
| 34.5Y/19.92 |
36.5Y/21.08 |
27 | 36 | — |
| 46Y/26.6 |
48.3Y/28 |
36 | — |
— |
| In addition, full IEEE Std C62.11-2005 standard certification has been completed and verified |
||||
| System voltage (kV rms) |
Recommended arrester rating per IEEE Std C62.22 standard (kV rms) |
||||||
| Four-wire wye multi-grounded neutral |
Three-wire wye solidly grounded neutral |
Delta and ungrounded wye |
|||||
| Nominal |
Maximum |
Standard MOV arrester |
URT |
Standard MOV arrester |
*URT |
Standard MOV arrester |
*URT |
| 2.4 | 2.54 | — |
— |
— |
— |
3 | 3 |
| 4.16Y/2.4 |
4.4Y/2.54 |
3 | 3 | 6 |
3 |
6 | 3 |
| 4.16 |
4.4 |
— |
— |
— |
— |
6 | 3 |
| 4.8 |
5.08 |
— |
— |
— |
— |
6 | 6 |
| 6.9 |
7.26 |
— |
— |
— |
— |
9 | 6 |
| 8.32Y/4.8 |
8.8Y/5.08 |
6 | 6 | 9 | 6 | — |
— |
| 12.0Y/6.93 |
12.7Y/7.33 |
9 | 9 | 12 | 9/10 | — |
— |
| 12.47Y/7.2 |
13.2Y/7.62 |
9 | 9 | 15 | 9/10 | — |
— |
| 13.2Y/7.62 |
13.97Y/8.07 |
10 | 10 | 15 | 10 | — |
— |
| 13.8Y/7.97 |
14.52Y/8.38 |
10 | 10 | 15 | 10 | — |
— |
| 13.8 |
14.52 |
— |
— |
— |
— |
18 | 10 |
| 20.78Y/12.0 |
22Y/12.7 |
15 | 15 | 21 | 15 | — |
— |
| 22.86Y/13.2 |
24.2Y/13.87 |
18 | 18 | 24 | 18 | — |
— |
| 23 |
24.34 |
— |
— |
— |
— |
30 | 18 |
| 24.94Y/14.4 |
26.4Y/15.24 |
18 | 18 | 27 | 18 | — |
— |
| 27.6Y/15.93 |
29.3Y/16.89 |
21 | 21 | 30 | 21 | — |
— |
| 34.5Y/19.92 |
36.5Y/21.08 |
27 | 27 | 36 | 27 | — |
27 |
| 46Y/26.6 |
48.3Y/28 |
36 |
36 | — |
— |
— |
— |
| *Recommended arrester ratings for the Evolution arrester for 3-wire solidly grounded neutral, delta and ungrounded wye circuits are based upon 5% regulation error |
|||||||
| Lightning Impulse Residual Voltage (kV Crest) 8/20 µs Cu |
||||||||
| Ur Arrester Rating |
Uc COV |
Steep Current Residual Voltage |
8/20 µs Current Wave |
|||||
| (kV rms) |
(kV rms) |
(kV Crest) |
1.5 kA |
3 kA |
5 kA |
10 kA |
20 kA |
40 kA |
| 3 | 2.55 | 10.9 | 9.0 | 9.7 | 10.4 | 11.4 | 13.0 | 15.1 |
| 6 | 5.1 | 21.8 | 17.9 | 19.4 | 20.8 | 22.7 | 26.0 | 30.2 |
| 9 | 7.65 | 31.4 | 25.8 | 28.0 | 30.0 | 32.8 | 37.4 | 43.5 |
| 10 | 8.4 | 32.7 | 26.9 | 29.1 | 31.2 | 34.1 | 38.9 | 45.3 |
| 12 | 10.2 | 41.1 | 33.8 | 36.5 | 39.2 | 42.9 | 48.9 | 56.9 |
| 15 | 12.7 | 51.3 | 42.2 | 45.7 | 49.0 | 53.6 | 61.1 | 71.1 |
| 18 | 15.3 | 61.6 | 50.6 | 54.8 | 58.8 | 64.3 | 73.4 | 85.3 |
| 21 | 17.0 | 65.4 | 53.7 | 58.2 | 62.4 | 68.2 | 77.9 | 90.6 |
| 24 | 19.5 | 76.3 | 62.7 | 67.8 | 72.8 | 79.6 | 90.8 | 106.0 |
| 27 | 22.0 | 86.3 | 71.0 | 76.8 | 82.4 | 90.1 | 103.0 | 120.0 |
| 30 | 24.4 | 96.2 | 79.1 | 85.6 | 91.8 | 100.0 | 115.0 | 133.0 |
| 33 | 27.0 | 107.0 | 87.8 | 95.6 | 102.0 | 112.0 | 127.0 | 148.0 |
| 36 | 29.0 | 115.0 | 94.7 | 103.0 | 111.0 | 120.0 | 137.0 | 160.0 |
| Lightning Impulse Residual Voltage (kV crest) |
30/60 Switching Surge |
|||||||||
| Ur Arrester Rating |
Uc MCOV |
Steep Current Residual Voltage |
8/20 μs Current Wave |
|||||||
| (kV rms) |
(kV rms) |
(kV, peak) |
1.5 kA |
3 kA |
5 kA |
10 kA |
20 kA |
40 kA |
125 A |
500 A |
| 3 | 2.55 | 10.8 | 8.2 | 8.7 | 9.1 | 9.9 | 10.9 | 12.3 | 7.1 | 7.6 |
| 6 | 5.1 | 21.5 | 16.3 | 17.4 | 18.2 | 19.8 | 21.9 | 24.7 | 14.1 | 15.1 |
| 9 | 7.65 | 32.4 | 24.6 | 26.1 | 27.3 | 29.8 | 33.0 | 37.1 | 21.3 | 22.7 |
| 10 | 8.4 | 34.4 | 26.0 | 27.7 | 29.0 | 31.6 | 34.9 | 39.4 | 22.6 | 24.1 |
| 12 | 10.2 | 43.2 | 32.7 | 34.8 | 36.4 | 39.7 | 43.9 | 39.5 | 28.3 | 30.3 |
| 15 | 12.7 | 52.2 | 39.6 | 42.1 | 44.0 | 48.0 | 53.1 | 59.8 | 34.3 | 36.6 |
| 18 | 15.3 | 64.8 | 49.1 | 523 | 54.7 | 59.6 | 65.9 | 74.2 | 42.6 | 45.5 |
| 21 | 17 | 68.8 | 52.1 | 55.4 | 58.0 | 63.2 | 69.9 | 78.7 | 45.1 | 48.2 |
| 24 | 19.5 | 79.5 | 60.2 | 64.1 | 67.0 | 73.1 | 80.8 | 91.1 | 52.2 | 55.8 |
| 27 | 22 | 92.4 | 70.0 | 74.5 | 77.9 | 84.9 | 93.9 | 106 | 60.6 | 64.8 |
| 30 | 24.4 | 100.5 | 76.1 | 81.0 | 84.7 | 924 | 102 | 115 | 66.0 | 70.5 |
| 33 | 27 | 114.2 | 86.5 | 92.1 | 96.3 | 105 | 116 | 131 | 75.0 | 80.1 |
| 36 | 29 | 120.8 | 91.5 | 97.3 | 102 | 111 | 123 | 138 | 79.3 | 84.7 |
Visit this page for information on earlier models.
Optimizer 2013 is a program that assists users, specifiers, students, sellers, and almost anyone involved in distribution arresters in the selection and understanding of this product.
Functions of the Optimizer program
Sources of Data
All of the data in this calculator is public information and found in catalogues, except the Watts Loss data which comes from laboratory tests
Calculation and recommendation methods
The calculation methods are all from IEEE standard C62.22
The Optimizer 2013 program
This program requires Macros to be enabled on your computer. Upon launching the program, you will be prompted to Enable Macros. If you are not prompted, manually enable Macros by using the following steps:
In the wake of a storm or disaster, Eaton understands that safety and speed of response is everything. You can rely on Eaton Care teams to plan, protect and connect.
