Compact Line Voltage Regulator (C-LVR)
As the power system evolves with increasing decentralization, electrification, and renewable integration, distribution networks are encountering new operational challenges. Among the most pressing is maintaining voltage stability across medium-voltage feeders while minimizing infrastructure impact.
Hitachi Energy’s Compact Line Voltage Regulator (C-LVR) is designed to address this need with a familiar yet refined approach. It integrates voltage regulation directly into a standard liquid-filled distribution transformer, enabling localized control without additional equipment or complex redesigns.
C-LVR is built to fit into existing substations and deployment models with minimal disruption — while delivering the voltage stability that makes a difference.
About C-LVR
C-LVR combines a distribution transformer and a line voltage regulator in a single, compact, factory-assembled unit. This integration enables effective voltage regulation at the medium-voltage level without requiring separate components or extended installation footprints.
Designed to be installed like any conventional liquid-filled distribution transformer, C-LVR brings additional control capabilities in a form factor that utilities and grid operators already know and trust.
Key Advantages
Seamless Grid Integration
- Compact footprint suitable for standard Compact Secondary Substations (CSS)
- Delivered as a single, ready-to-install unit
- No need for additional buildings or regulator installations
- Simplifies engineering and site preparation
Localized Voltage Control
- Actively manages voltage variations caused by DERs, EV charging, and variable loads
- Supports voltage regulation at the feeder level
- Enables better voltage quality and fewer customer disruptions
- Maintains performance under forward and reverse power flow
Familiar Form, Enhanced Function
- Built using proven distribution transformer technology
- Regulator function integrated without altering standard transformer handling
- Reduces component count and field wiring
- Designed for long life and operational reliability
Digital-Ready and SCADA-Compatible
- Supports integration into digital grid control systems
- Enables real-time monitoring and voltage adjustment
- Compatible with utility SCADA/ADMS environments
Efficient to Deploy and Operate
- Reduces on-site work and installation time
- Minimizes civil infrastructure requirements
- Streamlines maintenance through simplified architecture
- Helps manage cost and deployment speed without compromising grid performance
Application Areas
Who is C-LVR for?
Distribution System Operators (DSOs)
Utilities
EPCs and Integrators
Grid Engineers and Technical Planners
It fits right in. And it stands out when it counts.
The Compact Line Voltage Regulator (C-LVR) from Hitachi Energy brings together voltage regulation and power transformation in a design that utilities already understand — and can trust to deliver.
It installs easily, operates reliably, and makes an immediate difference in voltage control without disrupting the grid environment around it.
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