RVR-3 type feeder automatic step voltage regulator is actually a three phase oil immersed auto-transformer with SVR controller and gathering sampling of voltage signal.
The RVR-3 type feeder automatic step voltage regulator is actually a three phase oil immersed auto-transformer with SVR controller and gathering sampling of voltage signal, on load tap changer controlling device to achieve gird more efficient from adjust the load character by increase and decrease the voltage.
So This RVR is equivalent to a transformer equipped with on load tap changer with SVR controller sampling voltage and current data and on load tap changer steps from current transformer and voltage transformer and limit switches.- The RVR-3 type feeder automatic step voltage regulator is actually a three phase oil immersed auto-transformer with SVR controller and gathering sampling of voltage ¤t signal, on load tap changer controlling device to achieve gird more efficient from adjust the load character by increase and decrease the voltage.
1. Below an altitude of 2000m
2. Ambient temperature: Max. temperature is +40℃and the min. temperature is -25℃
3. Outdoor wind speed shall not exceed 35m/s
4. Pollution grade: Class II
5. Earthquake horizontal acceleration is not greater than 3m/s2, the vertical acceleration is not greater than 1.5m/ s2, and the safety factor is more than 1.67.
| Item | Parameter | ||
| Rated voltage | Under 6.9kV | 10kV up to 22kV | Under 35kV |
| Rated capacity | Less than 12500kVA | Less than 4000kVA | Less than 24000kVA |
| No of phases | Three phase | ||
| Cooling method | ONAN | ||
| Vector group | Yao | ||
| Steps | 7/9/16* steps | ||
| Mechanical life | 1000,000 times | ||
| Electrical life | 50,000times | ||
| Voltage scope | 20%, 30%, 40% | ||
