| Brand | ROCKWILL |
| Model NO. | Voltage stabilization and compensation overhead voltage regulator 6kV 6.35kV 11kV 15kV 22kV 33kV – IEEE for Power Industry |
| Rated voltage | 22kV |
| Phases | Single-phase |
| Series | RVR |
Product Description
pioneer and the first source factory in China's voltage regulator industry, we have been deeply rooted in the sector for decades, accumulating profound technical expertise. Leveraging top-tier R&D capabilities and a mature manufacturing system, our products have gained widespread market trust with reliability and performance that far exceed industry standards.
The RVR-1 single-phase step voltage regulator is an advanced tap-changing autotransformer engineered specifically for precise voltage regulation on 11kV overhead distribution lines. Exclusively manufactured in China with rigorous quality control, this compact and reliable device automatically adjusts line voltage within a ±10% range via 32 fine-tuning steps (approximately 5/8% per step), effectively mitigating voltage fluctuations caused by varying load conditions or grid instability.
Compatible with both 50Hz and 60Hz power systems, the RVR-1 offers flexible installation options—supporting pole-mounted, pad-mounted, or substation deployment to adapt to diverse distribution network requirements. Its robust design integrates a durable oil-immersed structure and intelligent tap-changing mechanism, ensuring long-term operational stability and low maintenance needs. Ideal for enhancing power supply quality in rural, suburban, or industrial areas, this regulator delivers consistent voltage output, protecting sensitive equipment and optimizing overall grid efficiency.
Product Features
Precise Voltage Control：32-step tap changer (±10% range) for accurate voltage stabilization.
Wide Compatibility：Supports system voltages from 2,500V to 19,920V (60–150 kV BIL) and currents up to 1,665A.
Advanced Digital Control：Programmable settings for voltage limits, communication protocols, and data logging.
Flexible Installation：Pole-mounted brackets, pad-mounted bolts, or substation bases (elevating platforms optional).
Robust Design：Internal tap windings and optional ratio correction transformer for diverse grid applications.
Advantages
High Reliability： Ensures consistent voltage output in harsh environments.
Customizable ：Adaptable to various system voltages and control requirements.
Low Maintenance ：Automated tap-changing reduces manual intervention.
Technical Parameters
Available voltage ratings include 50Hz (6kV, 6.35kV, 11kV, 15kV, 22kV, 33kV) and 60Hz (7.62kV, 13.8kV, 14.4kV, 19.92kV, 34.5kV). Custom voltage ratings are available upon request.
Parameter |
Specification |
Model No. |
RVR-1 |
Voltage Rating |
Up to 34.5 kV |
Regulation Range |
±10% (Boost/Buck) |
Tap Steps |
32 steps (approx. 0.625% per step) |
Phase |
Single-phase |
Transformer Type |
Tap-changing autotransformer |
Core Type |
Ring-shaped core |
Cooling Method |
ONAN (Oil-immersed, natural air cooled) |
Winding Configuration |
Two-winding Transformer |
BIL Rating |
60 -150 kV |
Current Rating |
Up to 1665 A |
Frequency |
50 Hz / 60 Hz |
50Hz
Voltage (kV) |
Current (A) |
Capacity (kVA) |
BIL (kV) |
Power Frequency Withstand Voltage (kV) |
Insulation Class |
6/6.35 |
50 |
30/32 |
75/95 |
28 |
A |
100 |
60/64 |
||||
150 |
90/95 |
||||
200 |
120/127 |
||||
300 |
180/191 |
||||
400 |
240/254 |
||||
500 |
300/318 |
||||
600 |
360/381 |
||||
11 |
50 |
55 |
|||
100 |
110 |
||||
150 |
165 |
||||
200 |
220 |
||||
300 |
330 |
||||
400 |
440 |
||||
500 |
550 |
||||
600 |
660 |
||||
15 |
50 |
75 |
125/150 |
50 |
|
100 |
150 |
||||
150 |
225 |
||||
200 |
300 |
||||
300 |
450 |
||||
400 |
600 |
||||
500 |
750 |
||||
22 |
50 |
110 |
|||
100 |
220 |
||||
150 |
330 |
||||
200 |
440 |
||||
300 |
660 |
||||
33 |
50 |
165 |
170/200 |
70 |
|
100 |
330 |
||||
150 |
495 |
||||
200 |
660 |
||||
250 |
825 |
||||
300 |
990 |
60Hz
Voltage (kV) |
Current (A) |
Capacity (kVA) |
BIL (kV) |
Power Frequency Withstand Voltage (kV) |
Insulation Class |
7.62 |
50 |
38 |
60/75 |
20 |
A |
100 |
76 |
||||
150 |
114 |
||||
219 |
167 |
||||
328 |
250 |
||||
438 |
333 |
||||
546 |
416 |
||||
13.8 |
50 |
69 |
95/125 |
38 |
|
100 |
138 |
||||
150 |
207 |
||||
200 |
276 |
||||
300 |
414 |
||||
400 |
552 |
||||
14.4 |
50 |
72 |
|||
100 |
144 |
||||
200 |
288 |
||||
300 |
432 |
||||
400 |
576 |
||||
19.92 |
50 |
100 |
170/200 |
70 |
|
100 |
200 |
||||
167 |
333 |
||||
200 |
400 |
||||
335 |
667 |
||||
34.5 |
50 |
165 |
|||
100 |
330 |
||||
150 |
495 |
||||
200 |
660 |
Application Scenarios
Rural/Urban Power Grids – Compensates for voltage drops in long-distance overhead lines.
Industrial Zones – Stabilizes voltage for heavy machinery and sensitive equipment.
Renewable Energy Integration – Manages fluctuations in solar/wind power-fed grids.
Substations – Enhances voltage control in distribution networks.
