33kV Automatic Line Voltage Regulator | HENTG POWER

The HENTG POWER 33kV Automatic Line Voltage Regulator is designed to stabilize voltage in medium-voltage distribution networks affected by long feeders, load fluctuations, and renewable energy integration.

Using an on-load tap-changing autotransformer, the regulator automatically adjusts the output voltage without interrupting the power supply. A typical configuration provides a ±10% regulation range in 32 steps, with approximately 0.625% adjustment per step.

The programmable digital controller supports adjustable target voltage, bandwidth, time delay, line-drop compensation, and forward or reverse power-flow operation.

• Rated system voltage up to 33kV
• Automatic on-load voltage regulation
• Typical ±10% regulation range
• 32-step precise voltage adjustment
• Forward and reverse power-flow control
• Programmable digital controller
• Optional monitoring and SCADA communication
• Pole-mounted, pad-mounted, or substation-type designs
• Customized insulation and environmental configurations

• Utility distribution feeders
• Solar and wind power networks
• Rural and remote distribution systems
• Industrial and mining facilities
• Long-distance power distribution lines
• Substations with frequent voltage variation

HENTG POWER provides customized 33kV voltage regulator solutions based on system voltage, load current, feeder conditions, insulation level, installation environment, and communication requirements.

Challenge: Voltage instability across long distribution feeders

Long feeder distances, changing loads, and renewable energy integration can cause voltage drop, voltage rise, or unstable voltage at remote network points. This may affect equipment performance and overall distribution reliability.

HENTG POWER Solution

The HENTG POWER 33kV Automatic Line Voltage Regulator continuously monitors line voltage and automatically adjusts the tap position under load. With a typical ±10% regulation range in 32 steps, it helps maintain voltage within the specified operating limits. Control parameters and forward or reverse power-flow modes can be configured according to the feeder profile and project requirements.

Utility distribution feeders, rural overhead lines, renewable energy projects, industrial facilities, mining, data centers and distribution substations.

Our HENTG POWER is a leading transformer manufacturer in China with over 15 years of industry experience, specializing in reliable MV and HV transformer solutions for global power systems since 2011.

With a 100,000 m² manufacturing facility, over 250 skilled workers, 30+ senior engineers, and 10+ professional testing engineers, HENTG POWER is dedicated to delivering high-quality transformer solutions to over 300 customers across 45+ countries, supporting large-scale EPC and utility projects worldwide.

We provide a comprehensive product portfolio, including medium and high voltage transformers, dry-type transformers, oil-immersed transformers, substations, switchgear, and distribution boxes. All products are designed and manufactured in compliance with GB 20052-2024, IEC 60076, and IEEE standards, meeting the technical requirements of power utilities, EPC contractors, and energy solution providers.

HENTG POWER transformers are widely applied across urban and rural distribution networks, industrial and heavy manufacturing facilities, power substations, renewable energy systems, battery energy storage systems (BESS), and data centers, delivering stable and efficient power for critical infrastructure projects.

Guided by our mission — “Transform Energy, Connect the Future.” — HENTG POWER implements strict 5S factory management throughout the entire manufacturing process. Every transformer undergoes 100% Outgoing Quality Control (OQC) with eight comprehensive testing procedures, ensuring long-term reliability, safety, and performance under demanding operating conditions.

Trusted by clients in 45+ countries, HENTG POWER is committed to providing responsive technical support and engineered transformer solutions.

Feel free to contact us today for professional engineering assistance and a free quotation. Thank you.