Automatic Tap - Changing Voltage Regulator – 7.62 kV 11kV 13.8 kV 14.4 kV 19.92 kV 34.5 kV, IEEE compliant for Power Industry
Key attributes
| Brand | ROCKWILL |
| Model NO. | Automatic Tap - Changing Voltage Regulator – 7.62 kV 11kV 13.8 kV 14.4 kV 19.92 kV 34.5 kV, IEEE compliant for Power Industry |
| Rated voltage | 11kV |
| Rated frequency | 50/60Hz |
| Rated capacity | 250kVA |
| Series | RVR |
Product descriptions from the supplier
Description
As a 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 stands as a single-phase oil-immersed automatic voltage regulator engineered with an autotransformer configuration at its core. Outfitted with a state-of-the-art RVR control unit, it constantly captures real-time voltage and current feedback from the power distribution network. Leveraging a built-in on-load tap changer (OLTC), the regulator dynamically fine-tunes voltage output to align with fluctuating load requirements—effectively enhancing grid voltage stability while optimizing overall system operational efficiency.
This integrated solution merges three key components: a tap-adjustable transformer, a motorized switching mechanism, and an intelligent control system. Together, they deliver high-precision automatic voltage regulation with exceptional reliability, ensuring consistent performance even in dynamic power distribution scenarios.
Key Features
Broad Voltage Regulation Range: Offers precise voltage adjustment spanning from -10% (buck mode) to +10% (boost mode), divided into 32 fine-tuning steps with a granularity of approximately 0.625% per step. This wide range ensures flexible adaptation to diverse grid voltage fluctuations and load demands.
Intelligent Control System: Equipped with a proprietary RVR controller, the regulator supports GPRS/GSM and Bluetooth communication protocols. This enables seamless real-time data collection (e.g., voltage, current, operating status) and remote operation capabilities, facilitating efficient monitoring and management of the device.
Comprehensive Protection Mechanisms: Integrates multi-layer protection functions to safeguard the regulator and connected equipment, including lock-out protection for line faults, overload protection, overcurrent protection, and undervoltage protection. These mechanisms effectively prevent damage caused by abnormal operating conditions, enhancing system reliability.
Highly Customizable Parameters: Allows users to flexibly adjust key settings according to specific application requirements, such as voltage reference values, tap step limits, tap switching delay time, and other user-defined control parameters. This customization capability ensures optimal performance in various power distribution scenarios.
Technical Parameters
RegulatorContinuous / Step voltage regulation Single-phase overhead voltage regulator 7.62 kV 13.8 kV 14.4 kV 19.92 kV 34.5 kVsingle phase – IEEE C57.12 for Power Industry
Parameter |
Specification |
Model No. |
RVR-1 |
Rated Voltage |
11 kV |
Phase |
Single-phase |
Mounting Type |
Pole-mounted |
Voltage Regulation |
±10% (Boost/Buck) |
Tap Steps |
32 steps |
Step Size |
Approx. 0.625% per step |
Transformer Type |
Oil-immersed auto-transformer |
Core Type |
Core-type, ring shape |
Cooling Method |
Oil-immersed |
Controller |
RVR Smart Controller (GPRS / GSM / Bluetooth) |
Sensing Elements |
Voltage and current transformers (CT & VT) |
Protection Functions |
Line fault, Overload, Overcurrent, Undervoltage |
Frequency |
50 Hz / 60 Hz |
Certification |
ISO9001-2000 |
Standards Compliance |
IEC / ANSI / GB |
Material |
Copper winding, transformer oil |
Color Options |
Gray, Green, or Customized |
Transport Package |
Wooden Case |
Trademark / Brand |
Rockwill |
Country of Origin |
Zhejiang, China |
HS Code |
8504231100 |
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 |
Standard Configuration
Tap changer with motor drive and power supply unit
RVR-type intelligent control cabinet with removable front panel
Voltage and current sensing from CTs and VTs
Position indicator with ADD-AMP adjustment
High-creepage porcelain bushings for insulation strength
Oil drain valve with sampling feature
Pressure relief device for safety protection
External MOV-type surge arresters
Oil sight gauge for monitoring oil level
Durable nameplate and lifting lugs
Conformally coated circuit boards for enhanced durability
Application Scenarios
Feeder voltage regulation for rural or long-distance distribution lines
Industrial areas with variable load profiles
Distribution networks requiring automatic and precise voltage control
Yes. This IEEE-compliant automatic tap-changing voltage regulator (available in 7.62kV–34.5kV) is designed to support single-phase overhead power systems, delivering reliable step voltage regulation for the power industry.
Yes. Equipped with built-in overload protection, this voltage regulator (available in 7.62kV–34.5kV) ensures safe operation under abnormal load conditions, fully complying with power industry safety standards and IEEE requirements.
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