1250KVA Industrial Voltage Stabilizer for Poultry Farm Power Stability – Wens
Introduction
The Wens Group high-efficiency ecological breeding farm in Guangxi is located in a remote mountainous area. The power supply lines are long, and during the summer peak demand period the voltage at the transformer output side drops significantly, with the lowest on-site measured three-phase voltage around 280V. To support the stable operation of the farm building ventilation fans and environmental control equipment, Winzele installed one 1250KVA voltage stabilizer with ultra-low voltage compensation at the output side of each of the farm’s two independent transformers. The two stabilizer systems operate independently, and the total stabilization capacity of the farm is 2500KVA Class.
Winzele is an industrial voltage stabilizer manufacturer that designed and manufactured two customized 1250KVA ultra-low voltage compensation voltage stabilizer systems according to the site power conditions. The systems were installed at the output side of two independent transformers to provide stable power supply for ventilation fans and environmental control equipment.
This poultry farm voltage stabilizer solution determines the compensation range based on the lowest on-site measured voltage: the input voltage may fluctuate within ±30% of the rated value, and when the input is low the output remains stable within the rated voltage range, improving the farm electrical system power supply and meeting the power stability requirements of continuous agricultural facility production.
Project Result Highlight
During on-site commissioning, Winzele verified the stabilization effect. Under low voltage input conditions, the dual 1250KVA ultra-low voltage compensation stabilization system improved output voltage stability.
On-site Voltage Verification
Input voltage approximately 298V, stabilized output voltage approximately 390V.
Thermal Inspection After Load Operation
After commissioning, Winzele performed thermal inspection under operating conditions to verify the operating status and temperature performance of the voltage stabilizer system.
Project location and application:
Project Overview
| Item | Description |
|---|---|
| Industry | Poultry Farming / Agricultural Facility |
| Customer | Wens Group |
| Project Name | Wens Group high-efficiency ecological breeding farm |
| Project Location | Guangxi, China |
| Application | Farm ventilation and environmental control systems |
| Installed Equipment | 2 × 1250KVA Ultra-Low Voltage Compensation Voltage Stabilizer System (Winzele) |
| Total System Capacity | 2500KVA Class |
| Voltage Class | 400V |
| Input Voltage Range | ±30% of rated value (custom specification) |
| Installation Type | Main power distribution system |
| System Location | Transformer output side |
| Main Load | Farm building ventilation fans and environmental control equipment |
| Backup System | 4 × 500kW diesel generator sets (backup) |
| Installation Year | 2023 |
Power Challenge
Summer High Temperature Operating Background
During the hot summer season, the farm ventilation system needs to run continuously for long periods. Because the power supply lines are long, the voltage at the transformer output side drops significantly during peak demand hours, with the lowest on-site measured three-phase voltage around 280V. When the voltage cannot meet the operating requirements of the fans and environmental control equipment, the site needs to start the diesel generator sets for auxiliary power supply, and generator operating time increases with the duration of voltage shortage.
The Wens Group ecological breeding farm faces typical remote mountainous area power supply problems:
- Remote mountainous area power supply conditions: Due to epidemic prevention and hygiene requirements, breeding areas are mostly located in remote mountainous areas, with long high-voltage grid line distances, long supply radius, high line impedance and obvious voltage fluctuation;
- Large summer line voltage drop: During summer peak hours the grid load is heavy, and the voltage drop on long-distance transmission lines increases significantly, causing low voltage at the transformer output side, with a maximum drop of about 30% (on-site measured three-phase minimum about 280V);
- Continuous fan load operation: The main load is the ventilation fans of each farm building, which must run continuously to maintain chicken house temperature, humidity and air quality. When voltage is low, fan speed drops and ventilation is insufficient, directly affecting the chicken house environment;
- Increased backup generation dependency: During voltage shortage periods, the 4 × 500kW diesel generator sets need to start for auxiliary power supply, and diesel consumption increases with operating time;
- Impact on continuously operating equipment: Long-term operation at low voltage causes insufficient fan motor output and increased heating, affecting equipment efficiency and service life.
Low voltage is especially prominent during the summer peak period. If not addressed, the fans will operate in an undervoltage state for long periods, directly affecting breeding environment stability, equipment reliability and backup generation operating costs.
Site condition before the voltage stabilizer installation.
Impact of Low Voltage on Poultry Farm Equipment
The impact of low voltage on the main electrical equipment of the poultry farm:
- Ventilation fan motors: When voltage is low, motor torque decreases, fan speed and airflow drop, operating current increases and motor heating increases, affecting equipment efficiency and service life;
- Environmental control systems: The control circuits and actuators of environmental control equipment may become unstable under undervoltage conditions, affecting equipment operation reliability;
- Automatic control equipment: Controllers, sensors and other electronic devices are sensitive to voltage fluctuation, and long-term undervoltage operation may affect the stability of measurement and control functions.
Solution Provided
Winzele designed and manufactured two customized 1250KVA industrial voltage stabilizer systems with ultra-low voltage compensation according to the site power conditions. Each system was connected to the output side of an independent transformer in the farm main power distribution system.
- The two 1250KVA ultra-low voltage compensation stabilizers are each connected to the output side of their own transformer and operate independently;
- The input voltage may fluctuate within ±30% of the rated value; when the input is as low as about 70% of the rated value, the output remains stable within the rated voltage range;
- The stabilized voltage is fed to the circuits of the farm building fans and environmental control equipment, improving the power quality of the farm electrical system;
- It covers continuously operating equipment such as ventilation and environmental control, supporting a stable chicken house environment;
- After voltage recovery, the time of starting diesel generator sets due to voltage shortage is reduced, lowering backup generation operating costs.
The stabilization solution determines the compensation range based on the lowest on-site measured voltage, ensuring that the fans receive stable operating voltage even under low voltage input conditions during summer peak hours in remote mountainous areas.
The equipment installation process and completed installation photos are shown below.
Power System Configuration
This section explains the connection relationship between the stabilization equipment and the on-site electrical system:
| Configuration Item | Value |
|---|---|
| Incoming Voltage | 400V |
| Input Voltage Range | ±30% of rated value (custom) |
| Output Voltage | 400V rated output (±1%) |
| Connection Type | Main power distribution system connection |
| Installation Location | Transformer output side (one unit per independent transformer) |
Note: The voltage at the transformer output side fluctuates significantly, with a maximum drop of about 30% during summer peak hours (on-site measured three-phase minimum about 280V). Both stabilization systems are ultra-low voltage ±30% custom specifications; when the input is as low as about 70% of the rated value, the output remains stable at 400V ±1%.
Power System Integration
This project uses two independent stabilization configurations:
- One 1250KVA ultra-low voltage compensation stabilizer is configured at the output side of each of the farm’s two independent transformers;
- The two stabilization systems serve their corresponding distribution circuits independently;
- The stabilizers are connected into the farm low-voltage distribution system, providing stable voltage for ventilation fans and environmental control equipment;
- The system configuration and on-site power supply structure are shown in the diagram below.
Caption: System integration diagram of dual 1250KVA voltage stabilizer system
Installation and System Integration
Factory photos – external structure (outbound storage, ready for shipping, overall cabinet appearance and cabinet combination form)
Factory photos – internal structure (factory door-open inspection, voltage regulation structure, control system and main circuit)
Equipment installation photos (two 1250KVA units installed on site)
After installation, Winzele engineers completed system commissioning and operation verification: confirming the voltage improvement effect under loaded conditions, and performing temperature rise inspection and recording on key stabilizer components, verifying the equipment operating status under the farm’s actual power supply conditions.
Engineering Highlights
Winzele provides customized industrial voltage stabilizer manufacturing solutions for agricultural facilities, remote power systems, and industrial applications.
The main features of this project that differ from ordinary industrial stabilization applications include:
| Highlight | Description |
|---|---|
| Ultra-low voltage compensation | Adapted to low voltage input in remote mountainous areas |
| Dual 1250KVA voltage stabilizer system | Two 1250KVA units connected to two independent transformers, farm total capacity 2500KVA Class |
| Remote mountainous area power supply | Addressing long-distance line voltage drop and voltage fluctuation |
| Continuously operating load | Supporting ventilation fans and environmental control equipment |
| Backup generation coordination | Reducing diesel generator operating demand |
| Main power distribution connection | Covering the main continuous loads of the breeding area |
On-site Voltage Verification
The on-site LCD test photos show the voltage change before and after stabilization compensation:
- Input voltage: approximately 298V (low voltage input before stabilization)
- Output voltage: approximately 390V (output after stabilization compensation)
This test record shows that under ultra-low voltage input conditions, the stabilizer has the ability to regulate the output voltage, improving the low voltage condition of the farm electrical system and providing more stable power supply for continuously operating equipment.
The voltage verification photo is shown in Project Result Highlight.
Note: The above is an on-site test record; specific readings are affected by the load and operating conditions at the test time. The product rated output specification is 400V ±1%.
Operational Cost Improvement
Before Installation
Due to the summer low voltage problem, the site is configured with 4 × 500kW diesel generator sets as backup, and they need to run for long periods to support the normal operation of breeding environment equipment (ventilation and environmental control). Diesel consumption increases with generation operating time.
After Installation
After installing the two 1250KVA ultra-low voltage compensation stabilizers, the grid power supply is stabilized and can meet the voltage requirements of the main continuously operating equipment, reducing backup diesel generator operating time.
Economic Benefit
According to the customer’s on-site operation statistics:
- Stabilizer equipment investment approximately RMB 400,000;
- First-year diesel cost savings of approximately RMB 500,000 after installation and operation.
Note: The above data comes from customer on-site statistics and reflects the direct impact of voltage improvement on backup generation operating costs; the specific savings depend on on-site load, power supply conditions and generation operating time.
FAQ
Q: Why does the voltage drop so much at this chicken farm (maximum drop about 30%)? A: Due to epidemic prevention and hygiene requirements, breeding areas are mostly located in remote mountainous areas with long high-voltage grid line distances and long supply radius. During summer peak hours line load is heavy and voltage drop is large, causing low voltage at the transformer output side, with on-site measured three-phase minimum about 280V, a maximum drop of about 30%.
Q: Can the stabilizer operate normally when the input voltage is 30% low? A: Yes. The two 1250KVA ultra-low voltage ±30% custom stabilizers in this project are each connected to the output side of one of the farm’s two independent transformers. The input voltage may fluctuate within ±30% of the rated value (minimum about 70% of rated); when the input is low, the output remains stable within the rated voltage range. The selection was confirmed based on the lowest on-site measured voltage and load characteristics.
Q: What is an ultra-low voltage ±30% custom stabilizer? A: An ultra-low voltage ±30% custom stabilizer means the input voltage may fluctuate within ±30% of the rated value while maintaining stable output. It suits scenarios such as remote mountainous areas and grid endpoints with long power supply lines and large voltage fluctuation. This project was customized according to the measured voltage at the chicken farm.
Q: What is the relationship between the stabilizer and the backup power supply? A: The stabilizer solves the voltage quality problem (low voltage, voltage fluctuation), while the backup power supply solves the power outage problem. For breeding facilities, the two are often used together: the stabilizer ensures voltage stability, and the backup power supply ensures equipment continues to run during outages.
Q: Why can installing a stabilizer reduce diesel generator use at the farm? A: Diesel generators mainly solve power outage problems, while the stabilizer solves voltage quality problems. This project improves the grid low voltage problem, allowing equipment that previously needed diesel generator auxiliary operation to be stably supplied by the grid again, thereby reducing diesel generator set operating time and diesel consumption.
Q: How does a fan-type load affect stabilizer selection? A: Fan starting current is usually greater than operating current. Selection requires checking the starting current against the stabilizer capacity and determining the compensation capability based on the minimum input voltage. The specifics should be confirmed based on the on-site equipment list and power supply conditions.
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Engineering Guidance
To evaluate a voltage stabilization solution for a large breeding facility or other remote mountainous area facility, please provide:
- Transformer capacity
- Incoming voltage and frequency
- Stabilizer capacity requirements
- Input voltage range requirements (if ultra-low voltage ±30% customization is needed)
- Load characteristics (such as fan quantity and power)
- On-site measured voltage data (especially the minimum voltage during summer peak hours)
- Installation conditions
The Winzele engineering team will evaluate the power supply conditions based on the actual project conditions and recommend a suitable voltage stabilization solution.
