Hunan Hentg Power Electric Technology Co., Ltd.
| Applicable standard | IEC 60076-21 or IEEE/IEC C57.15, as specified |
| Construction | Oil-immersed tap-changing autotransformer |
| Regulator capacity | Up to 1,000kVA, depending on voltage and current combination |
| Rated system voltage | 33kV |
| Regulation range | Typically ±10% |
| Service environment | Outdoor; customized for temperature, altitude and pollution level |
| Product type | Single-phase automatic step voltage regulator |
| Insulating liquid | Mineral oil; natural ester available on request |
| Regulation method | Automatic on-load tap changing |
| Certification | IEC 60076-21 |
| Place of Origin | China |
| Brand Name | HENTG POWER |
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Product Specification
| Applicable standard | IEC 60076-21 or IEEE/IEC C57.15, as specified | Construction | Oil-immersed tap-changing autotransformer |
| Regulator capacity | Up to 1,000kVA, depending on voltage and current combination | Rated system voltage | 33kV |
| Regulation range | Typically ±10% | Service environment | Outdoor; customized for temperature, altitude and pollution level |
| Product type | Single-phase automatic step voltage regulator | Insulating liquid | Mineral oil; natural ester available on request |
| Regulation method | Automatic on-load tap changing | Certification | IEC 60076-21 |
| Place of Origin | China | Brand Name | HENTG POWER |
| High Light | 33kV automatic voltage regulator ，distribution line voltage regulator ，HENTG POWER voltage regulator | ||
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.
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.
Company Details
Business Type:
Manufacturer
Year Established:
2011
Total Annual:
300-500MVA
Employee Number:
150~200
Ecer Certification：
Verified Supplier
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