The power frequency online UPS with a wide input voltage range has irreplaceable advantages in various scenarios with strict requirements for power reliability or complex power grid environments due to its strong grid adaptability, high power supply stability, and extensive load compatibility. The following are its typical application scenarios and advantages analysis:
1、 Industrial Manufacturing and Automation Scenarios
1. Heavy industry production workshop
Scenario characteristics: High power equipment such as machine tools, stamping equipment, and welding machines start and stop frequently, which can easily lead to sudden voltage surges/drops in the power grid (with fluctuations of over ± 20%), and severe harmonic interference.
Advantages reflected:
A wide voltage range (such as AC 110V~480V) can directly adapt to voltage fluctuations, avoiding the restart or failure of PLC controllers, sensors and other equipment caused by abnormal voltage.
Power frequency transformers isolate grid harmonics (such as high-order harmonics generated by frequency converters) to protect the operational accuracy of precision equipment such as servo motors and CNC systems.
150% overload capacity can cope with current surges during equipment startup (such as motor startup current being 5-7 times the rated value), reducing production interruptions.
2. Petrochemical and energy industries
Scenario characteristics: There is a flammable and explosive environment on site, and the equipment needs to operate continuously for 24 hours. Additionally, the power grid may be affected by long-distance transmission, resulting in unstable voltage.
Advantages reflected:
Wide voltage design reduces battery discharge frequency and avoids frequent charging and discharging affecting battery life (in remote oil fields and other scenarios, battery replacement costs are high and maintenance is difficult).
The high reliability of power frequency machines (MTBF ≥ 100000 hours) can meet safety production requirements and prevent accidents such as valve loss of control and data loss caused by power outages.
2、 Data centers and critical IT infrastructure
1. Large data centers (Tier 3/4 level)
Scenario characteristics: Server clusters and storage devices have extremely high requirements for power stability (allowing voltage fluctuations of ≤± 1%), and need to support N+1 redundant configuration.
Advantages reflected:
Power frequency transformers isolate common mode interference in the power grid (such as potential differences caused by poor grounding), ensuring that hardware such as server motherboards and hard drives are not affected by voltage distortion.
Wide voltage input reduces battery power supply switching triggered by grid fluctuations, reducing the risk of "voltage spikes during switching" on equipment.
Supporting modular parallel expansion, power modules can be added online to meet the gradually expanding needs of data centers.
2. Financial industry data center and communication base station
Scenario characteristics: Bank servers and communication base station equipment need to operate continuously for 7 × 24 hours, and the voltage fluctuation of the base station power grid in remote areas is large (such as rural power grid voltage is often lower than 180V).
Advantages reflected:
It can still work normally when the voltage is as low as 110V, avoiding signal interruption caused by the base station shutting down due to insufficient voltage.
The long lifespan of power frequency machines (10-15 years) reduces the frequency of equipment replacement and lowers maintenance costs (especially suitable for remote base stations in mountainous areas, deserts, etc.).
3、 Medical and research institutions
1. Hospital intensive care unit and precision medical equipment
Scenario characteristics: CT, magnetic resonance imaging (MRI), ventilators and other equipment are sensitive to power quality, and abnormal voltage may cause distortion of detection data or equipment damage.
Advantages reflected:
Isolation transformers eliminate high-frequency interference in the power grid (such as surges generated by peripheral equipment startup), ensuring imaging accuracy of medical equipment (such as CT images without artifacts).
The wide voltage range is suitable for the voltage drop caused by peak electricity consumption in the hospital power supply system (such as when the air conditioning is fully turned on in summer, the voltage may drop to 190V).
2. Laboratory and research equipment
Scenario characteristics: Scientific research instruments such as spectrometers and ultra high speed centrifuges have strict requirements for power frequency and waveform, requiring pure sine wave output.
Advantages reflected:
The output waveform distortion (THD) of the power frequency machine is ≤ 1%, which is better than that of the high-frequency machine (usually THD ≤ 3%), meeting the strict requirements of precision instruments for power quality.
Strong overload resistance.
4、 Transportation and Infrastructure Scenarios
1. Rail Transit and Railway Signal System
Scenario characteristics: The signal control and ticketing systems of subways and high-speed trains require highly reliable power sources, and the power grid may experience voltage fluctuations due to the influence of traction power supply systems.
Advantages reflected:
Wide voltage input is suitable for voltage fluctuations caused by train start-up in traction substations (such as a possible 15% drop in voltage during subway train start-up).
The strong anti-interference ability of the power frequency machine isolates electromagnetic interference in the track circuit, ensuring the stability of signal transmission.
2. Airport and air traffic control system
Scenario characteristics: Radar, navigation equipment, and luggage sorting systems require extremely high power continuity, and any power outage or voltage anomaly may affect flight safety.
Advantages reflected:
Support dual machine parallel redundancy (2N system), when one UPS fails, the other can seamlessly take over the load, meeting the Civil Aviation Administration's requirement for "zero interruption" of critical equipment.
The wide voltage design adapts to the voltage changes in the airport power supply system caused by peak flight takeoff and landing periods.
5、 Remote areas and harsh power grid environments
1. Rural power grid and remote communities
Scenario characteristics: The power grid construction is weak, the voltage often fluctuates between 160V and 250V, and the frequency of power outages is high.
Advantages reflected:
It can still work normally when the voltage is as low as 110V, avoiding the shutdown of home medical equipment (such as oxygen concentrators) and communication equipment (such as satellite phones) due to insufficient voltage.
Reduce the number of battery discharges.
2. Field operations and temporary power supply scenarios
Scenario characteristics: Oil field exploration, mining and other scenarios use generators for power supply, but the stability of the generator output voltage is poor (fluctuation amplitude can reach ± 30%).
Advantages reflected:
Wide voltage input can directly adapt to generator output without the need for additional voltage regulators, simplifying power supply system configuration.
The high reliability of the power frequency machine can operate stably in harsh environments such as high temperature and dust (such as desert oil fields where the ambient temperature can reach 50 ℃).
summarize
The core adaptation scenario of power frequency online UPS with a wide input voltage range can be summarized as an environment with large voltage fluctuations, severe interference, complex load types, and extremely high requirements for power supply reliability. From industrial manufacturing to medical research, from data centers to remote base stations, its "wide adaptability+power frequency isolation" characteristics make it the preferred solution for dealing with complex power environments. When selecting products, users need to consider the specific scenario of power grid fluctuations, load characteristics, and reliability requirements, and give priority to such products to ensure the continuous and stable operation of key equipment.
