YIMAI Industrial Oil-Immersed Voltage Regulator | 100kVA~1000kVA Three-Phase On-Load Tap-Changing Stabilizer
The YIMAI Industrial Oil-Immersed Voltage Regulator is a heavy-duty, high-capacity power stabilization solution engineered for large-scale industrial and infrastructure applications. Sold by Shanghai YIMAI Electric (一迈电气), this oil-cooled stabilizer features on-load tap-changing technology, a wide input voltage range, and intelligent PLC control, delivering precise 380V/400V AC output to protect c
- Information
Product Overview
The YIMAI Industrial Oil-Immersed Voltage Regulator is a professional-grade power stabilization system designed for heavy-duty industrial environments. Built with an oil-immersed cooling structure and on-load tap-changing technology, this regulator automatically adjusts extreme input voltage fluctuations (typically 200V~450V AC) to a precise 380V±0.5% output, ensuring stable power supply for large industrial machinery, power substations, and critical infrastructure. With capacities ranging from 100kVA to 1000kVA, it is the ideal solution for factories, mines, and power distribution networks.
Core Technical Advantages
-
On-Load Tap-Changing Technology
- Adopts advanced on-load tap-changing (OLTC) mechanism, allowing voltage regulation without interrupting power supply to loads, ensuring continuous operation of critical equipment.
- Achieves high regulation accuracy (±0.5%) and fast response time (<0.5 seconds), effectively eliminating voltage sags, surges, and harmonic distortion.
-
Oil-Immersed Cooling Structure
- The core and windings are immersed in insulating mineral oil, providing excellent heat dissipation and electrical insulation, enabling continuous full-load operation even in high-temperature environments.
- The oil tank is fully sealed with a corrugated fin design, preventing oil oxidation and moisture ingress, extending the service life to 30+ years.
-
Intelligent PLC Control & HMI Monitoring
- Equipped with a PLC controller and color HMI touchscreen, providing real-time monitoring of three-phase input/output voltage, load percentage, oil temperature, and fault status.
- Supports automatic voltage regulation, fault self-diagnosis, and audible/visual alarms, enabling unattended operation and remote monitoring (via RS485/Modbus).
-
Robust Industrial Design
- Heavy-duty metal enclosure with IP54 protection rating, resistant to dust, moisture, and mechanical impacts, suitable for harsh industrial environments (mines, factories, power substations).
- Modular design allows for easy maintenance and component replacement, reducing downtime and operational costs.
-
Comprehensive Safety Protection Mechanisms
- Over-voltage/Under-voltage protection: Automatically adjusts voltage or cuts off output when voltage exceeds safe limits.
- Over-load/Short-circuit protection: Shuts down to prevent damage to the regulator and connected loads.
- Phase sequence/Phase loss protection: Prevents damage to three-phase motors and equipment from incorrect wiring or missing phases.
- Over-temperature/Oil level protection: Monitors oil temperature and level, triggering alarms or shutdown to prevent thermal runaway.
- Lightning/Surge protection: Built-in surge arrestor filters out high-voltage spikes from lightning or grid switching.
Technical Specifications (Typical Values)
| Parameter | 200kVA Model | 500kVA Model | 1000kVA Model |
|---|---|---|---|
| Model | YIMAI-OLVR-200kVA | YIMAI-OLVR-500kVA | YIMAI-OLVR-1000kVA |
| Type | Three-Phase On-Load Tap-Changing Voltage Regulator | Three-Phase On-Load Tap-Changing Voltage Regulator | Three-Phase On-Load Tap-Changing Voltage Regulator |
| Rated Capacity | 200kVA / 160kW | 500kVA / 400kW | 1000kVA / 800kW |
| Input Voltage | 200V~450V AC (Three-Phase) | 200V~450V AC (Three-Phase) | 200V~450V AC (Three-Phase) |
| Output Voltage | 380V AC ±0.5% (Three-Phase) | 380V AC ±0.5% (Three-Phase) | 380V AC ±0.5% (Three-Phase) |
| Frequency | 50/60Hz | 50/60Hz | 50/60Hz |
| Regulation Accuracy | ±0.5% | ±0.5% | ±0.5% |
| Response Time | <0.5 Seconds | <0.5 Seconds | <0.5 Seconds |
| Cooling Method | Oil-Immersed Natural Cooling (ONAN) | Oil-Immersed Natural Cooling (ONAN) | Oil-Immersed Forced Air Cooling (ONAF) |
| Display | Color HMI Touchscreen (PLC Control) | Color HMI Touchscreen (PLC Control) | Color HMI Touchscreen (PLC Control) |
| Protection Functions | OVP/UVP/OLP/Short-Circuit/Phase Sequence/Surge/Over-Temperature/Oil Level | OVP/UVP/OLP/Short-Circuit/Phase Sequence/Surge/Over-Temperature/Oil Level | OVP/UVP/OLP/Short-Circuit/Phase Sequence/Surge/Over-Temperature/Oil Level |
| Protection Degree | IP54 (Industrial Outdoor/Indoor) | IP54 (Industrial Outdoor/Indoor) | IP54 (Industrial Outdoor/Indoor) |
| Noise Level | <68dB | <70dB | <72dB |
| Dimensions (W×D×H) | 1200×1000×2200mm | 1600×1200×2500mm | 2000×1500×2800mm |
| Net Weight | ~1200kg | ~2800kg | ~5000kg |
| Operating Environment | -20°C~45°C, 20~90%RH (Non-Condensing) | -20°C~45°C, 20~90%RH (Non-Condensing) | -20°C~45°C, 20~90%RH (Non-Condensing) |
| Compliance | CE, ISO 9001, IEC 60947 | CE, ISO 9001, IEC 60947 | CE, ISO 9001, IEC 60947 |
Target Applications
- Large Industrial Manufacturing: Protects heavy machinery, rolling mills, large motors, and automated production lines.
- Mining & Quarrying: Ensures stable power for mining equipment, crushers, and conveyor systems in remote areas.
- Power Substations & Infrastructure: Provides stable power for transformers, switchgear, and distribution systems.
- Oil & Gas Platforms: Powers drilling rigs, pumps, and control systems in offshore and onshore facilities.
- Large-Scale Construction Sites: Supplies stable power to cranes, concrete mixers, and construction equipment.
- Data Centers & Cloud Computing: Safeguards large server clusters and storage systems from severe voltage fluctuations.
Why Choose YIMAI Industrial Voltage Regulator (Shanghai YIMAI)?
YIMAI (上海一迈电气) is a leading manufacturer of high-power industrial voltage stabilizers, with decades of experience serving global heavy industry and infrastructure customers. Our oil-immersed on-load tap-changing regulators are rigorously tested to meet international standards (CE, IEC, ISO), ensuring exceptional reliability, durability, and performance. Purchasing directly from Shanghai YIMAI on Taobao guarantees genuine products, local fast shipping, and professional after-sales support for large-scale projects.
After-Sales Service & Support
- 3-year warranty for all industrial voltage regulator products.
- Lifetime technical support via Shanghai YIMAI Taobao store, including on-site installation, commissioning, and maintenance.
- Custom solution design for specific voltage and capacity requirements.
- Fast response to emergency repair requests, minimizing downtime for critical operations.
FAQ (Frequently Asked Questions)
Q1: What is the difference between on-load tap-changing and off-circuit tap-changing?
A: On-load tap-changing (OLTC) allows voltage regulation without interrupting power supply to loads, while off-circuit tap-changing requires the load to be disconnected during regulation. This model uses OLTC, ideal for critical loads that cannot tolerate any power interruption.
Q2: Can this regulator handle a 200kVA load continuously?
A: Yes, the 200kVA model is rated for 200kVA continuous operation, with a power factor of 0.8, supporting up to 160kW of real power load. It is recommended to keep the load below 90% of rated capacity for optimal lifespan.
Q3: What is the minimum input voltage it can handle?
A: The standard input range is 200V~450V AC, which can handle voltage drops as low as 200V (52% of nominal 380V), making it ideal for areas with severe power shortages.
Q4: Is the output voltage adjustable?
A: The output voltage is factory-set to 380V±0.5%, but we can customize it to 400V or 415V according to regional requirements before delivery.
Q5: Does it support remote monitoring?
A: Yes, it supports RS485/Modbus communication, enabling remote monitoring and control via SCADA or building management systems (BMS).
Q6: How noisy is it during operation?
A: The noise level is <68dB for 200kVA, <70dB for 500kVA, and <72dB for 1000kVA, which is acceptable for most industrial environments.
Q7: What is the service life of this regulator?
A: With proper maintenance, the service life can reach 30+ years, making it a long-term investment for industrial power distribution systems.
Q8: What is the warranty period?
A: All YIMAI industrial voltage regulators come with a 3-year warranty, and Shanghai YIMAI provides lifetime technical support, including on-site maintenance and emergency repair services.
Product Overview
The YIMAI Industrial Oil-Immersed Voltage Regulator is a professional-grade power stabilization system designed for heavy-duty industrial environments. Built with an oil-immersed cooling structure and on-load tap-changing technology, this regulator automatically adjusts extreme input voltage fluctuations (typically 200V~450V AC) to a precise 380V±0.5% output, ensuring stable power supply for large industrial machinery, power substations, and critical infrastructure. With capacities ranging from 100kVA to 1000kVA, it is the ideal solution for factories, mines, and power distribution networks.
Core Technical Advantages
-
On-Load Tap-Changing Technology
- Adopts advanced on-load tap-changing (OLTC) mechanism, allowing voltage regulation without interrupting power supply to loads, ensuring continuous operation of critical equipment.
- Achieves high regulation accuracy (±0.5%) and fast response time (<0.5 seconds), effectively eliminating voltage sags, surges, and harmonic distortion.
-
Oil-Immersed Cooling Structure
- The core and windings are immersed in insulating mineral oil, providing excellent heat dissipation and electrical insulation, enabling continuous full-load operation even in high-temperature environments.
- The oil tank is fully sealed with a corrugated fin design, preventing oil oxidation and moisture ingress, extending the service life to 30+ years.
-
Intelligent PLC Control & HMI Monitoring
- Equipped with a PLC controller and color HMI touchscreen, providing real-time monitoring of three-phase input/output voltage, load percentage, oil temperature, and fault status.
- Supports automatic voltage regulation, fault self-diagnosis, and audible/visual alarms, enabling unattended operation and remote monitoring (via RS485/Modbus).
-
Robust Industrial Design
- Heavy-duty metal enclosure with IP54 protection rating, resistant to dust, moisture, and mechanical impacts, suitable for harsh industrial environments (mines, factories, power substations).
- Modular design allows for easy maintenance and component replacement, reducing downtime and operational costs.
-
Comprehensive Safety Protection Mechanisms
- Over-voltage/Under-voltage protection: Automatically adjusts voltage or cuts off output when voltage exceeds safe limits.
- Over-load/Short-circuit protection: Shuts down to prevent damage to the regulator and connected loads.
- Phase sequence/Phase loss protection: Prevents damage to three-phase motors and equipment from incorrect wiring or missing phases.
- Over-temperature/Oil level protection: Monitors oil temperature and level, triggering alarms or shutdown to prevent thermal runaway.
- Lightning/Surge protection: Built-in surge arrestor filters out high-voltage spikes from lightning or grid switching.
Technical Specifications (Typical Values)
| Parameter | 200kVA Model | 500kVA Model | 1000kVA Model |
|---|---|---|---|
| Model | YIMAI-OLVR-200kVA | YIMAI-OLVR-500kVA | YIMAI-OLVR-1000kVA |
| Type | Three-Phase On-Load Tap-Changing Voltage Regulator | Three-Phase On-Load Tap-Changing Voltage Regulator | Three-Phase On-Load Tap-Changing Voltage Regulator |
| Rated Capacity | 200kVA / 160kW | 500kVA / 400kW | 1000kVA / 800kW |
| Input Voltage | 200V~450V AC (Three-Phase) | 200V~450V AC (Three-Phase) | 200V~450V AC (Three-Phase) |
| Output Voltage | 380V AC ±0.5% (Three-Phase) | 380V AC ±0.5% (Three-Phase) | 380V AC ±0.5% (Three-Phase) |
| Frequency | 50/60Hz | 50/60Hz | 50/60Hz |
| Regulation Accuracy | ±0.5% | ±0.5% | ±0.5% |
| Response Time | <0.5 Seconds | <0.5 Seconds | <0.5 Seconds |
| Cooling Method | Oil-Immersed Natural Cooling (ONAN) | Oil-Immersed Natural Cooling (ONAN) | Oil-Immersed Forced Air Cooling (ONAF) |
| Display | Color HMI Touchscreen (PLC Control) | Color HMI Touchscreen (PLC Control) | Color HMI Touchscreen (PLC Control) |
| Protection Functions | OVP/UVP/OLP/Short-Circuit/Phase Sequence/Surge/Over-Temperature/Oil Level | OVP/UVP/OLP/Short-Circuit/Phase Sequence/Surge/Over-Temperature/Oil Level | OVP/UVP/OLP/Short-Circuit/Phase Sequence/Surge/Over-Temperature/Oil Level |
| Protection Degree | IP54 (Industrial Outdoor/Indoor) | IP54 (Industrial Outdoor/Indoor) | IP54 (Industrial Outdoor/Indoor) |
| Noise Level | <68dB | <70dB | <72dB |
| Dimensions (W×D×H) | 1200×1000×2200mm | 1600×1200×2500mm | 2000×1500×2800mm |
| Net Weight | ~1200kg | ~2800kg | ~5000kg |
| Operating Environment | -20°C~45°C, 20~90%RH (Non-Condensing) | -20°C~45°C, 20~90%RH (Non-Condensing) | -20°C~45°C, 20~90%RH (Non-Condensing) |
| Compliance | CE, ISO 9001, IEC 60947 | CE, ISO 9001, IEC 60947 | CE, ISO 9001, IEC 60947 |
Target Applications
- Large Industrial Manufacturing: Protects heavy machinery, rolling mills, large motors, and automated production lines.
- Mining & Quarrying: Ensures stable power for mining equipment, crushers, and conveyor systems in remote areas.
- Power Substations & Infrastructure: Provides stable power for transformers, switchgear, and distribution systems.
- Oil & Gas Platforms: Powers drilling rigs, pumps, and control systems in offshore and onshore facilities.
- Large-Scale Construction Sites: Supplies stable power to cranes, concrete mixers, and construction equipment.
- Data Centers & Cloud Computing: Safeguards large server clusters and storage systems from severe voltage fluctuations.
Why Choose YIMAI Industrial Voltage Regulator (Shanghai YIMAI)?
YIMAI (上海一迈电气) is a leading manufacturer of high-power industrial voltage stabilizers, with decades of experience serving global heavy industry and infrastructure customers. Our oil-immersed on-load tap-changing regulators are rigorously tested to meet international standards (CE, IEC, ISO), ensuring exceptional reliability, durability, and performance. Purchasing directly from Shanghai YIMAI on Taobao guarantees genuine products, local fast shipping, and professional after-sales support for large-scale projects.
After-Sales Service & Support
- 3-year warranty for all industrial voltage regulator products.
- Lifetime technical support via Shanghai YIMAI Taobao store, including on-site installation, commissioning, and maintenance.
- Custom solution design for specific voltage and capacity requirements.
- Fast response to emergency repair requests, minimizing downtime for critical operations.
FAQ (Frequently Asked Questions)
Q1: What is the difference between on-load tap-changing and off-circuit tap-changing?
A: On-load tap-changing (OLTC) allows voltage regulation without interrupting power supply to loads, while off-circuit tap-changing requires the load to be disconnected during regulation. This model uses OLTC, ideal for critical loads that cannot tolerate any power interruption.
Q2: Can this regulator handle a 200kVA load continuously?
A: Yes, the 200kVA model is rated for 200kVA continuous operation, with a power factor of 0.8, supporting up to 160kW of real power load. It is recommended to keep the load below 90% of rated capacity for optimal lifespan.
Q3: What is the minimum input voltage it can handle?
A: The standard input range is 200V~450V AC, which can handle voltage drops as low as 200V (52% of nominal 380V), making it ideal for areas with severe power shortages.
Q4: Is the output voltage adjustable?
A: The output voltage is factory-set to 380V±0.5%, but we can customize it to 400V or 415V according to regional requirements before delivery.
Q5: Does it support remote monitoring?
A: Yes, it supports RS485/Modbus communication, enabling remote monitoring and control via SCADA or building management systems (BMS).
Q6: How noisy is it during operation?
A: The noise level is <68dB for 200kVA, <70dB for 500kVA, and <72dB for 1000kVA, which is acceptable for most industrial environments.
Q7: What is the service life of this regulator?
A: With proper maintenance, the service life can reach 30+ years, making it a long-term investment for industrial power distribution systems.
Q8: What is the warranty period?
A: All YIMAI industrial voltage regulators come with a 3-year warranty, and Shanghai YIMAI provides lifetime technical support, including on-site maintenance and emergency repair services.
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