Three Phase Automatic Step Voltage Regulator for Continuous / Step voltage regulation 13.8kV 14.4kV 19.92kV 34.5kV
Key attributes
| Brand | ROCKWILL |
| Model NO. | Three Phase Automatic Step Voltage Regulator for Continuous / Step voltage regulation |
| Rated voltage | 34.5kV |
| Rated frequency | 50/60Hz |
| Rated capacity | 500kVA |
| Series | SVR |
Product descriptions from the supplier
Product 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 SVR-3 is a high-performance, oil-immersed three-phase automatic voltage regulator, designed to stabilize medium-voltage distribution lines. It operates as a self-regulating autotransformer, equipped with an advanced SVR smart controller that continuously samples voltage and current signals from the grid.
By automatically adjusting output voltage through an on-load tap changer (OLTC), the SVR-3 enhances grid efficiency, ensures power quality, and accommodates varying load demands. This system integrates current transformers (CTs), voltage transformers (VTs), and limit switches to manage regulation steps precisely and reliably.
Main Features
Wide Regulation Range：±20% ultra-wide adjustment via 16 tap steps (2.5% per step) + self-developed high-capacity OLTC for reliable full-load switching.
Advanced Smart Control:Built-in SVR controller with real-time monitoring, remote configuration & communication (GPRS/GSM/Bluetooth supported).
Comprehensive Protection:Automatic lock-out for line faults, overload, overcurrent & undervoltage—ensuring safe, stable operation.
4. Flexible Control Settings:Adjustable voltage setpoints, step limits, time delays & user-configurable system parameters.
Additional Information
Payment Terms: 30% T/T in advance, 70% balance against copy of B/L.
Packaging: Export-grade plywood cases for maximum protection during transport.
Core Material Options: Copper or Aluminum windings available per customer requirement. Copper offers longer lifespan and better conductivity.
OEM Services: Custom logo/branding available for bulk orders.
Technical Specifications
Available voltage ratings: 50Hz (6kV, 6.35kV, 11kV, 15kV, 22kV, 33kV) and 60Hz (7.62kV, 13.8kV, 14.4kV, 19.92kV, 34.5kV). Custom voltage solutions are available upon request.
Parameter |
Specification |
Model No. |
SVR-3 |
Phase |
Three-phase |
Rated Voltage Range |
2.5 kV-19.92 kV |
Voltage Regulation Range |
±20% (16 steps, 2.5% per step) |
Rated Current |
50 A-1665 A |
Rated Capacity (kVA) |
38.1-1000 kVA |
Basic Impulse Level (BIL) |
60 kV-50 kV |
Frequency |
50 / 60 Hz |
Tap Changer Type |
On-load tap changer (OLTC), motor-driven |
Transformer Type |
Oil-immersed autotransformer |
Cooling Method |
ONAN (Oil Natural Air Natural) |
Our Service Commitment
Responsive Pre-Sales Assistance：Swift replies to inquiries and tailored support to streamline your ordering process.
Transparent Production Tracking：Real-time updates at every manufacturing stage, keeping you fully informed.
Dependable After-Sales Service：Consistent quality support and dedicated warranty assistance post-purchase.
Hassle-Free Warranty Coverage：12-month quality assurance for worry-free operation and peace of mind.
Why Choose ROCKWILL
One-stop power equipment provider with global coverage
Free technical support to optimize your power solutions
Customized service for orders of any size
All products undergo strict quality inspection before delivery
Competitive pricing and flexible logistics from our own freight network
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