Single Phase Pole Mounted voltage regulator 6kV 11kV 15kV 33kV

The Rockwill RVR-1 is a single-phase pole-mounted automatic voltage regulator, purpose-built for 50 Hz overhead distribution networks. It merges oil-immersed transformer reliability with an intelligent digital control module, delivering precise and stable voltage regulation in harsh environments such as remote rural grids, industrial parks, and heavy-load facilities.

Built as an autotransformer with an integrated on-load tap changer (OLTC), the RVR-1 continuously monitors line voltage and current via built-in potential and current transformers, automatically adjusting tap positions to maintain output voltage within tight tolerances. The 32-step tap changer provides a wide boost and buck range, with each step enabling fine voltage correction to compensate for line voltage drops and load fluctuations.

The hermetically sealed oil-immersed tank ensures thermal stability, moisture resistance, and dielectric strength for long-term reliable operation outdoors. The regulator is designed for direct pole mounting on overhead distribution lines, eliminating the need for additional foundations and enabling rapid deployment. An intelligent control module offers real-time monitoring, automatic precision adjustment, and remote communication via GPRS, GSM, or Bluetooth for easy configuration and fault diagnosis.

Key Features

• Pole-mounted design for overhead deployment：Mounts directly on standard utility poles via dedicated brackets, eliminating the need for concrete foundations and enabling rapid installation along existing distribution lines
• On-load tap-changing autotransformer：Motor-driven OLTC enables voltage regulation under load without interrupting power supply, ideal for continuous industrial and residential feeders
• Intelligent digital control module：Real-time voltage and current monitoring with automatic tap sequencing; supports GPRS, GSM, or Bluetooth for remote configuration and diagnostics
• Broad regulation range in fine steps：Multi-step tap changer provides wide boost and buck coverage with precise per-step resolution, maintaining stable output across varying load conditions
• Oil-immersed self-cooled construction：Hermetically sealed tank with mineral oil ensures thermal stability, moisture resistance, and dielectric strength for long-term outdoor reliability
• Built-in overload protection：Safeguards against abnormal load conditions, coordinating with upstream protective devices for secure network integration
• Flexible voltage configuration： Internal potential winding taps and external ratio correction transformer allow one regulator to serve multiple system voltages
• IEC and IEEE compliant：Designed and tested in accordance with IEC 60076, IEC 60214, and IEEE C57.15

Standard Accessories

• RVR digital regulator controller
• Motor-integrated on-load tap changer with power supply
• Tap position indicator with ADD-AMP adjustment
• Nameplates and lifting lugs
• Oil drain valve, sampling device, and oil sight gauge
• High-creep bushings with NEMA connectors
• Pole-mounting brackets

Optional Accessories

• External series surge arrester
• Automatic pressure relief device
• Control cabinet with removable front panel
• Substation base for pad mounting
• GPRS / GSM / Bluetooth remote communication module

Application Scenarios

• Rural overhead distribution networks：Pole-mounted voltage regulation on long 50 Hz overhead feeders where line voltage drop causes under-voltage at remote consumers
• Industrial park feeders：Stabilizing supply voltage at the point of common coupling serving multiple factories, compensating for fluctuating industrial loads
• Agricultural irrigation systems：Maintaining voltage within acceptable limits for motor-driven pump loads along extended overhead lines during peak seasons
• Remote mining and resource extraction sites：Voltage stabilization for heavy equipment in remote locations powered by weak 50 Hz grid connections
• Suburban and residential areas:Compensating for daytime load variation and maintaining consistent service voltage for end consumers along overhead distribution lines
• Temporary construction power:Rapid pole-mount deployment for construction sites requiring temporary voltage regulation without permanent substation construction