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Eaton's Cooper Power series VSO recloser features three vacuum interrupters, oil insulation and an operating mechanism in an integral mounting frame. The electronic control is housed in a separate cabinet. Constructed of welded angle and channel steel, the VSO recloser frame facilitates recloser handling, simplifies mounting procedures and adds rigidity to the mounting structure. It provides a convenient mounting location for the tank-lifting windlass, which allows easy access to the interior of the recloser whether it is mounted on the pole or in the substation.
| Nominal system voltage (kV rms) |
34.5 | |
| Rated maximum voltage (kV rms) |
38 | |
| Rated impulse withstand voltage BIL) (kV crest) |
150 | |
| 60 Hz withstand voltage (kV rms) |
dry, one minute |
70 |
| wet, 10 seconds |
60 | |
| Maximum Radio influence |
@ 23 kV (uV) |
100 |
| Maximum continuous current (amps) |
560* | |
| Interrupting current (rms sym. amps) |
VSO 12 |
12000 |
| VSO 16 |
16000 | |
| Three-second current, symmetric, A |
VSO 12 |
12000 |
| VSO 16 |
16000 | |
| Momentary current, asymmetric, A | VSO 12 | 20000 |
| VSO 16 | 25600 | |
| Cable charging current, A | 5 | |
| Magnetising current, A | 19.6 | |
| *An 800 A accessory is available | ||
| Percent of maximum circuit interrupting rating |
Maximum X/R ratio |
Number of unit operations |
| 15-20 | 4 | 88 |
| 45-55 | 8 | 112 |
| 90-100 | 16 | 32 |
| Total 232 |
| Volts |
Inductive ac (amps) |
Non-inductive Ac (amps) |
Inductive dc (amps) |
Non-inductive dc (amps) |
| 24 | – |
– |
15.0 | 20.0 |
| 48 | – |
– |
7.5 | 10.0 |
| 120 | 60 | 80 |
– |
– |
| 125 | – |
– |
1.5 | 2.0 |
| 240 | 30 | 60 | – |
– |
| 250 | – |
– |
0.45 | 0.5 |
| Trip solenoid | Operating voltage, Vdc | 24 | |
| Peak current, A | 10.7 | ||
| Actuation time, cycles | 1 | ||
| Close solenoid | Operating voltage, Vdc | 24 | |
| Peak current, A | 10.8 | ||
| Actuation time, cycles | 2.75 | ||
| Standard |
Accessory |
||
| Spring charging motor | Operating voltage, Vac |
240 | 120 |
| Voltage range, Vac |
160-257 | 90-127 | |
| Maximum current, RMS, A |
12.9 | 18 | |
| Steady state current, A |
4.1 | 9 | |
| Motor running time, cycles |
40 | 40 | |
| Sensing current transformers | 1000:1 | ||
| Maximum arcing time, cycles |
1.0 | ||
| Interrupting time, cycles |
2.5 | ||
| Operating temperature, °C |
Minimum |
-30 |
| Maximum |
+50 |
|
| Closing mechanism | Spring operated | |
| Opening mechanism |
Spring operated |
|
| Contact gap, mm (in) |
13 (.5) | |
| Close contact travel time, cycles |
.75 | |
| Open contact travel time, cycles |
.5 | |
| Allowable contact erosion, mm (in) |
3 (.125) | |
| Opening time, 24 Vdc solenoid, Signal to contact part, msec |
25 | |
| Closing time, 24 Vdc solenoid, Signal to contact make, msec |
50 | |
| Mechanical life open-close, no load, operations |
2500 | |
Visit this page for information on earlier models.
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