VR Series

The VR series is engineered for noise-sensitive environments with an optimized silent canopy structure.

• Noise Reduction Performance: Depending on the model, the average noise level measured at a distance of 7 meters ranges from 63dBA to 77dBA. For instance, the VR15XS-AU emits only 63dBA under 75% load, making it ideal for residential neighborhoods and commercial office spaces.
• Technical Implementation: An optimized air intake and exhaust system paired with custom silencers minimizes mechanical and airflow noise while guaranteeing proper engine coolant heat dissipation and combustion efficiency.

Custom high-temperature cooling enhancements are built into the VR series for Middle Eastern and other hot climate markets, enabling continuous operation at full rated power under ambient temperatures up to 50°C.

• Enlarged cooling system: High-temperature versions are fitted with larger radiators (e.g., optimized coolant capacity for the VR15XS-ME) and perfectly matched fans and water tanks compared to standard units.
• No power derating: Standard generator sets usually suffer power loss under high heat, yet the VR-ME series delivers full nominal PRP (Prime Power) and ESP (Emergency Standby Power) thanks to advanced thermal management.

The VR series boasts excellent regulatory compliance and can be customized to satisfy environmental standards across global markets.

• European certification: Models for the EU market fully comply with Stage II and Stage III emission standards (e.g., VR110XS-EU meets Stage II; VR800XS-EU complies with Stage III).
• Australian certification: Units supplied to Australia adhere strictly to AS standards.
• Technical solution: High-performance engine fuel control systems (EFC or ECU electronic control units) and optimized combustion chambers reduce particulate matter and gaseous pollutants effectively.

PRP and ESP are two power parameters defined by the international ISO 8528 standard and displayed in the selection datasheet:

• PRP (Prime Power): Rated power for unlimited runtime under variable loads. Suitable for sites without grid power that rely entirely on generators, such as mines and field operation sites.
• ESP (Emergency Standby Power): Standby power for emergency equipment when mains power fails, with an annual operating limit of approximately 200 hours. Designed for hospitals, data centers, office buildings and other backup power scenarios.

Recommendation: Refer to the PRP rating if you require long-duration continuous operation.

The VR series uses top-tier global supply chains to guarantee outstanding reliability.

• Engine: Mainly high-performance diesel engines co-developed with Powerlink. High-power models (VR1250XS and above) adopt 12-cylinder or 16-cylinder configurations equipped with EFC electronic speed regulation or ECU high-pressure common rail electronic control technology for superior fuel efficiency.
• Alternator: Factory-fitted with world-renowned Leroy Somer alternators (including LSA 40, 42.3, 44.3, 46.3, 47.3, 49.3, 50.2, 52.3 series). These deliver stable voltage waveforms and strong resistance to impacts from non-linear loads.

The VR series is equipped with industry-leading intelligent control systems, including two main models: PLC-920 and PLC-7420.

• Full digital display: Real-time monitoring of critical parameters including voltage, current, frequency, oil pressure, coolant temperature and battery voltage.
• Intelligent protection: Multi-stage alarm and automatic shutdown protection against overspeed, low oil pressure, high coolant temperature, startup failure and other faults.
• Remote monitoring: Supports remote start and stop; high-end models feature cloud data connectivity to allow operation and maintenance staff to monitor unit status remotely.

The VR series is designed with fuel efficiency and long runtime as core priorities.

• Standard base fuel tanks: Medium and small power models (VR10XS to VR45XS) come with 90L–200L integrated base tanks, supporting over 8–10 hours of full-load continuous operation.
• Large-capacity fuel tanks: High-power units (VR625XS and above) are equipped with oversized tanks ranging from 400L to 2400L.
• Fuel consumption example: The VR100XS-AU consumes approximately 18.4 L/h at 75% load and 24.6 L/h at 100% load. Efficient combustion systems convert fuel into consistent power output with minimal waste.

Comprehensive power output protection is integrated to safeguard connected electrical equipment.

• Circuit breakers: All units are standard-fitted with well-known brand breakers (Nader or Delixi), providing 4P three-phase four-wire protection against overload and short circuits.
• Output connection: Power is delivered via busbars or industrial connectors, featuring low contact resistance and low temperature rise to ensure safe high-current transmission.
• Stable voltage output: Paired with Leroy Somer alternators and AVR (Automatic Voltage Regulators), the units achieve extremely low voltage fluctuation, making them suitable for powering precision instruments.