Réponse I.Core
The voltage range of Huaquan’s high-voltage generator sets spans from 3,300V (3.3kV) à 13 800 V (13.8kV), encompassing the mainstream voltage levels in the medium and high-voltage power generation sector. Notably, 10.5kV (10,500V) stands as the primary voltage level for Huaquan’s high-voltage units, finding widespread application in scenarios such as data centers, centres médicaux, grandes mines, and oil fields.
| voltage level | Common applications | Typical power matching |
| 3.3kV | Small and medium-sized industrial projects | 500-1000kW |
| 6.0kV | Mine and oilfield parallel operation system | 1000-2000kW |
| 10.5kV (main power) | Centres de données, centres médicaux, grandes mines | 1000-3000kW |
| 13.8kV | Large-scale power stations, overseas general contracting | 2000kW+ |
Huaquan Power vous rappelle: Huaquan provides customized solutions for a full range of high-voltage generator sets from 3kV to 13.8kV. Specific voltage levels can be customized according to project requirements, with a power range of 500kVA to 5200kVA.
II.Detailed explanation of various voltage levels
- 10.5kV (10500V) – the primary voltage level
10.5kV is the most commonly used voltage level for Huaquan’s high-voltage units and also a common distribution voltage in high-voltage power grids.
| paramètre | Huaquan 1000kW unit | Huaquan 1200kW unit |
| rated voltage | 10.5kV | 10.5kV |
| rated current | 61.9UN | 82.5UN |
| puissance de sortie | 1000kW | 1200kW |
| Scénarios applicables | Medical center, centre de données | Large mines, centres de données |
Advantages of high voltage and low current:
- Under a voltage of 10.5kV, the current of a 1000kW unit is only 61.9A, and the current of a 1200kW unit is only 82.5A
- Typical high voltage and low current characteristics, centralized power supply, high voltage regulation accuracy, and strong harmonic suppression capability
- It is particularly suitable for long-distance power transmission scénarios
Typical application case:
- A data center in Jinan: Purchased multiple Huaquan high-voltage generator sets to provide continuous and stable power supply for the data center
- Solar-thermal complementary power generation project in Nyima County, Xizang: successfully operated at an altitude of 5600 meters and in harsh environment at -40℃
- 6.0kV (6000V) – commonly used in mine parallel operation systems
6.0kV is a commonly used voltage level in large industrial projects such as mines and oil fields, especially suitable for multi-machine parallel configurations.
| project | A mining company in Heilongjiang |
| total power | 2400kW (2 units of 1200kW operating in parallel) |
| voltage level | 6000V |
| configuration du moteur | V-type 12-cylinder, electronically controlled high-pressure common rail, National III emission standard |
| Unit configuration | 2 turbocompresseurs, 2 intake air filters, 2 starter motors |
| intelligent system | Huaquan Cloud Intelligent Monitoring System |
Advantages of high-voltage parallel operation:
- Two 1200kW units connected in parallel form a 2400kW high-voltage power station
- Stable power supply, strong harmonic suppression capability, and high voltage regulation accuracy
- Suitable for high energy consumption scenarios such as large-scale mining and oil fields
- 13.8kV and other voltage levels
The voltage range of Huaquan high-voltage generator sets covers 3kV to 13.8kV, meeting the grid standards of different countries and regions:
| voltage level | Applicable regions/standards | typical scenario |
| 3.3kV | International Standard | Small and medium-sized industrial projects |
| 6.0kV | Domestic mine/oilfield standards | Large mining parallel operation system |
| 10.5kV | Main domestic distribution voltage | Centre de données, medical center |
| 13.8kV | North American standard/export project | Overseas general contracting, large-scale power stations |
III. Comparison between high-voltage and low-voltage generator sets
| comparative dimension | Huaquan high-voltage generator set | Huaquan conventional low-voltage unit |
| voltage level | 3kV～13.8kV | 400V/230V |
| current magnitude | Small (1000kW→61.9A) | Large (1000kW→1800A) |
| transmission distance | Far (several tens of kilometers) | Nearby (a few hundred meters) |
| Line loss | minimal | Large (significant I²R loss) |
| Power supply concentration | Haut (Capable of centralized power supply) | Faible (requires more distribution points) |
| harmonic suppression | strong | general |
| Pressure regulation accuracy | Haut (±0.5%) | En général (±1%) |
| Scénarios applicables | Long-distance power transmission, large centralized load | Local power distribution, small and medium-sized loads |
| Typical Applications | Centre de données, mine, oil field, airport | Usines, zones résidentielles, chantiers de construction |
Huaquan’s Advantages: Huaquan’s high-voltage units adopt a design featuring high voltage and low current, resulting in minimal power loss during power transmission, making them particularly suitable for long-distance power transmission.
IV.Core Technical Parameters of Huaquan High-Pressure Unit
| paramètre | Huaquan Standard |
| voltage range | 3kV～13.8kV |
| plage de puissance | 500kVA～5200kVA |
| voltage accuracy | ±0.5% |
| structural form | Dual bearings or single bearing (facultatif) |
| Coil/bearing monitoring | PT100 standard |
| bearing life | Sur 100,000 heures |
Typical configuration case (Huaquan 1000kW containerized high-voltage unit):
| configuration item | specification |
| Overall dimensions | 7.5m × 2.5m × 2.9m |
| moteur | Weichai V-type 12-cylinder engine, with a standby power of 1210kW and a displacement of 32.9L |
| Caractéristiques techniques | Electronic fuel injection high-pressure common rail, dual air filters, dual turbocharging |
| générateur | Inge motor, voltage 10.5kV, current 61.9A |
| Control method | Self-starting control cabinet, automatic switching in case of mains power failure |
V.Applicable Scenarios of High-Voltage Generator Sets
- Centre de données
| demande | Huaquan solution |
| Power supply reliability | Huaquan high-voltage units have been applied in multiple projects, including the Jinan Data Center |
| Stabilité de tension | High voltage and low current, high voltage regulation accuracy, strong harmonic suppression capability |
| remote power supply | The advantage is obvious when the distance between the data center and the generator set is relatively large |
- Mines and oil fields
| demande | Huaquan solution |
| High-power power supply | Single machine 1200kW, parallel operation up to 2400kW+ |
| Long-distance power transmission | With an output of 6000V or 10500V, there is minimal transmission loss over distances of tens of kilometers |
| Adaptation to harsh environments | The high-voltage unit for mines has been successfully applied in Heilongjiang Mining Company |
- Medical centers, airports
| demande | Huaquan solution |
| alimentation de secours | High-voltage unit self-starts, with a response time of seconds in case of mains power interruption |
| high reliability | Huaquan high-voltage units have been applied in industries such as medical centers and airport power supply |
| Centralized power supply | One high-voltage unit can cover the entire hospital/terminal building |
- Plateaus and extreme environments
| environnement | Huaquan performance |
| 5600 meters above sea level | The solar-thermal complementary power generation project in Nyima County, Xizang, has been successfully operational |
| -40℃ low temperature | Rich operational experience in high-altitude and harsh environments at -40℃ |
| special working conditions | It has numerous operational cases in harsh environments such as industrial continuous power supply, high altitude, and ultra-low temperature |
VI.Common Issues
T1: Why is the voltage of a high-voltage generator set 10.5 kV instead of 10 kV?
UN: The rated voltage of a generator is usually 5% higher than the rated voltage of the power grid to compensate for voltage drops on the transmission lines. When the rated voltage of the power grid is 10kV, the rated voltage of the generator is designed to be 10.5kV. When the 10.5kV output reaches the user end through the transmission lines, the voltage drops to around 10kV, ensuring normal operation of the equipment.
T2: Which is more suitable for me, a high-voltage generator set or a low-voltage one?
UN: Huaquan Power recommends referring to the following standards:
| Your request | Solution recommandée | reason |
| Single unit power < 500 kW | Low-voltage unit (400V) | Low-voltage equipment is mature and low-cost |
| The distance between the load and the generator is less than 500 mètres | Low-voltage unit (400V) | Line loss is acceptable |
| Single unit power > 1000 kW | High-voltage unit (10.5kV) | High voltage and low current, with a more reasonable equipment capacity |
| The distance between the load and the generator is greater than 1000 mètres | High-voltage unit (10.5kV) | The loss of power transmission over long distances is small |
| Data center/Medical center | High-voltage unit (10.5kV) | Centralized power supply, high voltage regulation accuracy |
| Multiple high-power units operating in parallel | High-voltage unit (6kV/10.5kV) | The parallel operation system is mature and has strong harmonic suppression capability |
T3: What are the protection level and insulation level of Huaquan high-voltage generator sets?
UN: Huaquan’s high-voltage Générateurs have a protection level up to IP23 (rain-proof) and an insulation level of H. The containerized units have a higher protection level and can be used outdoors in all weather conditions.
Q4: What is the service life of a high-voltage generator set?
UN: The design lifespan of Huaquan high-voltage generator sets is over 20 années, with the generator bearings having a lifespan of over 100,000 heures. Le moteur, when maintained according to specifications, can undergo a major overhaul after 30,000 heures.
Q5: What are some successful cases of Huaquan high-voltage generator sets?
UN: Huaquan high-pressure units have been successfully applied in the following typical projects:
- China Mobile Data Center: High-voltage parallel power supply
- Jiangsu Nuclear Power Station: Emergency Standby Power Supply
- Solar-thermal complementary power generation project in Nyima County, Xizang: at an altitude of 5600 meters and in a -40℃ plateau environment
- A mining company in Heilongjiang: 2400kW (2×1200kW) high-voltage parallel operation system
- A data center in Jinan: multiple high-voltage units provide centralized power supply
📌 Summary: Quick Reference for Voltage Parameters of Huaquan High-Voltage Generator Sets
| voltage level | Typical power | Typical current | Scénarios applicables |
| 3.3kV | 500-1000kW | 87-175UN | Small and medium-sized industrial projects |
| 6.0kV | 1000-2000kW (parallel operation) | 96-192UN | Mine and oil field parallel operation system |
| 10.5kV (main power) | 1000-3000kW | 55-165UN | Centres de données, centres médicaux, grandes mines |
| 13.8kV | 2000kW+ | 83A+ | Large-scale power stations, overseas projects |
Core advantages of Huaquan Power’s high-pressure units:
- Wide voltage range: full series from 3kV to 13.8kV, with power coverage from 500kVA to 5200kVA
- High voltage and low current: low transmission loss, suitable for long-distance power supply
- High voltage regulation accuracy: voltage accuracy ±0.5%, strong harmonic suppression capability
- Intelligent control: Huaquan cloud intelligent monitoring system, automatic switching between mains power and alimentation de secours
- Strong environmental adaptability: verified in harsh environments at an altitude of 5600 meters and temperatures of -40℃
- Rich application cases: numerous successful cases in data centers, centrales nucléaires, mines, champs de pétrole, solar thermal power stations, et plus
For more technical details on high-voltage generator sets or to obtain a selection plan, please contact Huaquan Power’s customer service
