| Brand | ROCKWILL |
| Model NO. | 38kv Pole Mounted Single Phase 32 Step Automatic Voltage Regulator |
| Rated voltage | 38kV |
| Rated frequency | 50/60Hz |
| Rated capacity | 500kVA |
| Series | RVR |
Product Overview
The RVR-1 is a single-phase, oil-immersed autotransformer-based feeder voltage regulator, designed to maintain stable voltage levels across medium voltage distribution lines. It integrates an advanced RVR controller, which continuously samples voltage and current signals via voltage and current transformers, enabling precise on-load tap changing to adapt to grid load variations. The system improves overall grid efficiency by adjusting line voltage up or down according to real-time demand.
This regulator features a motor-driven on-load tap changer (OLTC) with step control based on real-time voltage/current feedback, ensuring fast and reliable response to network fluctuations. It is ideally suited for both 50Hz and 60Hz distribution networks, with voltage ratings ranging from 2.4kV to 34.5kV.
Main Features
Wide Voltage Regulation Range:Provides ±10% voltage regulation (boost and buck) in 32 fine steps, each approximately 0.625%, for precise voltage control.
Smart RVR Controller:Built-in advanced RVR-type controller developed in-house, supporting communication via GPRS/GSM and Bluetooth for remote monitoring and diagnostics.
Automatic Protection Functions:Integrated lock-out functions for line fault, overload, overcurrent, and undervoltage conditions, ensuring equipment and system safety.
Flexible Voltage Adjustment Settings:Supports adjustable voltage setpoint, step limits, timing delay between tap operations, and customizable operating parameters.
Technical Parameters
Applications
Ideal for voltage regulation in:
Long rural or suburban feeder lines
Industrial zones with fluctuating load demand
Distribution systems requiring improved voltage stability
-
3 Phase AC Power Voltage Stabilizer 50kVA 100kVA 200kVA 500kVA 2000kVA 380V 415V Automatic Adjustment Voltage Regulator
-
SVR - High Voltage Feed Voltage Regulating Transformer(distribution transformer)
-
33kv Single Phase Pole Mounted 32-Step Voltage Regulator
-
24kV Single Phase Pole Mounted 32 Step Automatic Voltage Regulator
-
Strange Devices on Transmission Lines: 5 Little-Known Practical Functions（1）1 Aviation Warning SpheresAviation warning spheres, also known as reflective safety spheres, are used on overhead transmission lines near airports, especially on extra-high-voltage (above 220kV) lines and river-crossing transmission lines. Highly visible aviation marker spheres (aviation warning spheres) must be installed along the lines to provide warning signals.The aviation marker sphere (aviation warning sphere) has a diameter of ф=600mm. The sphere can be manufactured in various bright coloLeon09/04/2025 -
Transmission LineIn transmission lines, a "π" connection involves breaking the original line from Substation A to Substation B and inserting Substation C, forming a "π" configuration. After the "π" connection, the original single line is divided into two independent transmission lines. Following the "π" connection, Substations B and C may both be powered by Substation A (in this case, Substation C receives power via a feeder from Substation B's busbar, or possibly from another voltage point within Substation B);Encyclopedia09/04/2025 -
What are the principles of forced re-energization of transmission lines?Principles of Forced Re-energization of Transmission LinesRegulations for Forced Re-energization of Transmission Lines Correctly select the forced re-energization end of the line. If necessary, change the connection configuration before forced re-energization, taking into account the reduction of short-circuit capacity and its impact on grid stability. There must be a transformer with its neutral point directly grounded on the busbar at the forced re-energization end. Pay attention to the impactEdwiin09/04/2025 -
Analysis of Accident Handling in Transmission LinesAnalysis of Transmission Line Fault HandlingAs a fundamental component of the power grid, transmission lines are widely distributed and numerous, often exposed to diverse geographical and climatic conditions, making them highly susceptible to faults. Common causes include overvoltage, pollution flashover, insulation damage, tree encroachment, and external damage. Line tripping is one of the most frequent faults in power plant and substation operations, with fault types including single-phase-to-Leon09/04/2025 -
The difference between transmission and distribution linesTransmission lines and distribution lines are both used to carry electrical power from one location to another. However, they differ significantly in key aspects such as primary function, voltage levels, phase configuration, and conductor placement. These differences are essential for understanding their distinct roles in the power system.The Difference Between Transmission and Distribution Line is given below in the tabulated form.Electricity generation is a critical component of the power systEdwiin09/04/2025 -
Ensuring Reliability: A Deep Dive into Transformer MaintenanceIntroductionElectric transformers are the backbone of modern power distribution systems, silently enabling the reliable delivery of electricity to homes, businesses, and industries. As these critical assets age and the demand for uninterrupted power grows, the importance of diligent transformer maintenance has never been greater. This essay explores the essential role of transformer maintenance, highlighting the value of proactive care, the impact of advanced diagnostic technologies, and the traVziman09/03/2025
-
Intelligent Operation Solution for 12kV Vacuum Circuit Breakers: Integrating Real-time Monitoring & Lifetime OptimizationⅠ. Equipment Operation & MaintenanceIntelligent Monitoring System IntegrationMulti-parameter Real-time Monitoring: Embedded sensors (temperature, displacement, Hall effect current sensors) track contact temperature rise, mechanical characteristics (opening/closing speed, overtravel), coil current, and partial discharge signals. Data undergoes preprocessing via edge computing prior to cloud upload.Lifetime Prediction Model: Dynamically evaluates remaining lifespan using electrical wear dataRockwill06/10/2025 -
SF6 Circuit Breaker Solutions for Outdoor Installation (Anti-Pollution & Seismic Resistance)I.Core Challenges in Outdoor InstallationIn high-voltage transmission and distribution systems, SF6 circuit breakers are exposed to complex outdoor environments for extended periods, facing the following critical issues:Pollution & Insulation DegradationDust, salt fog, and industrial pollutants in outdoor environments easily adhere to equipment surfaces. In coastal or industrial areas, pollution levels may reach Class IV, resulting in insufficient creepage distance and triggering flashoRockwill05/12/2025
