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Eaton's Cooper Power series NOVA STS single-tank triple-single recloser consists of three single-phase recloser units in one tank. Each consists of an interrupting module, with embedded CT and mechanism. The interrupter modules utilise outdoor cycloaliphatic-epoxy-encapsulated vacuum interrupters. Suitable for pole or substation mounting, the NOVA STS recloser provides automation of distribution feeders in line applications. The three NOVA STS recloser units are controlled by a single Form 6 recloser control, on a per-phase basis for both source and load that can be programmed for three operating modes.
| 15 kV |
15 kV |
27 kV |
27 kV |
38 kV |
|
| Maximum voltage |
15.5 kV | 15.5 kV |
27.0 kV |
27.0 kV |
38.0 kV |
| Rated basic impulse level |
110.0 kV | 125.0 kV |
125.0 kV |
150.0 kV |
170.0 kV |
| Radio noise limit (µv) |
100 @ 9.4 kV |
100 @ 9.4 kV |
100 @ 16.4 kV |
100 @ 16.4 kV |
100 @ 23.0 kV |
| Power frequency withstand, dry |
50 kV |
50 kV |
60 kV |
60 kV |
70 kV |
| Power frequency withstand, wet |
45 kV |
45 kV |
50 kV |
50 kV |
60 kV |
| Rated continuous current |
630 A* |
630 A* |
630 A* |
630 A* |
630 A* |
| Short circuit current, symmetrical |
12.5 kA** |
12.5 kA** |
12.5 kA** |
12.5 kA** |
12.5 kA |
| Making current, asymmetrical Peak |
32.0 kA |
32.0 kA |
32.0 kA |
32.0 kA |
32.0 kA |
| Making current, asymmetrical rms |
20.0 kA |
20.0 kA |
20.0 kA |
20.0 kA |
20.0 kA |
| Minimum mechanical/electrical operations without maintenance (C-O) 10,000 | |||||
| * 800 A accessory is also available |
|||||
| ** 16.0 kA option is also available (making current is 41.0 kA asymmetrical Peak and 25.0 kA asymmetrical rms) |
|||||
| Percent maximum circuit interrupting rating |
Minimum X/R ratio |
Number of unit operations at 12.5 kA |
Number of unit operations at 16.0 kA |
| 15-20 | 4 | 88 | 44 |
| 45-55 | 8 | 112 | 56 |
| 90-100 | 17* | 32 | 16 |
| Total 232 | Total 116 | ||
| *Value shown for 60 Hz |
Form 6 recloser control advisory
Visit this page for information on earlier models.
Eaton customers can access software, firmware and additional product documentation at My.Eaton.com. To request access, visit My.Eaton.com and complete the registration form. Please note that requests for access can take several days to process. If your matter is urgent, contact the customer support group at 866-975-7347.
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