RVO-6 U1 valve arresters are characterized by high efficiency, reliability in operation and no need for frequent maintenance. For long-term use of the devices, it is recommended to paint the heads of the bolts holding the flanges and lids so that ferruginous stains do not appear on the glaze of the porcelain lid. During periodic inspections of arresters, the surface of porcelain lids should be cleaned of dust, as its presence can lead to distortion of voltage distribution. An important advantage of the product is its competitive cost.
The main elements are non-linear resistors connected in series with spark gaps. They are reliably protected from the negative effects of the environment by a sealed porcelain case, which provides the necessary stability of the product characteristics.
 |
1. Spark gaps
2. Nonlinear resistors 3. Sealed porcelain body |
| Parameter name |
Meaning
|
|---|---|
| Mains voltage class, kV effective | 6 |
| Rated voltage, kV effective | 7.5 |
Breakdown voltage at a frequency of 50 Hz in a dry state and in the rain, kV effective:
|
16 19 |
| Impulse breakdown voltage at pre-discharge time from 2 to 20 μs, kV – no more |
32 |
Remaining voltage at a wave of pulsed current 8/20 μs, kV, no more
|
25 27 |
| Rectified test voltage when measuring leakage current, kV | 6 |
| Leakage current, µA | 6 |
| Current carrying capacity: – 20 current impulses with a wave of 16/40 µs, kA – 20 current impulses with a square wave with a duration of 2000 µs, A |
5.0 75 |
| The length of the creepage distance of the outer insulation, cm, – not less than | 18 |
| Permissible tension of wires, N, – not less than | 300 |
| Height, (H), mm, – no more | 294 |
| Weight, kg – no more | 3.2 |
Manufacturer of power transmission and distribution equipments.
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