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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 utilize 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.
Eaton's pad-mounted electronically controlled, enclosed NOVA recloser features solid-dielectric vacuum interruption in a mild steel enclosure design, safeguarding against weather, tampering and rodents.
| 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.
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