1. The superiority of UPS working principle
1. Industrial frequency UPS, using digital signal processing technology to ensure that the measurement data is fast and flexible, thereby generating fast control variables, ensuring real-time control of the charger and inverter.
2. The power frequency UPS has stronger short-circuit protection and stronger overload capacity than the high-frequency UPS.
3. Due to the extremely unstable environment of China's mains electricity and the susceptibility to interference from some external conditions. Therefore, the requirements for the ability to know the path and the overload capacity are also higher. The use of power frequency UPS will greatly improve the safety and stability of the load equipment.
Second, the advantages of power frequency UPS hardware configuration
1. Technically, power frequency UPS has more input and output transformers than high frequency UPS
(1) The power frequency UPS has a standard input / output transformer, which protects the current isolation from input interference. In the industrial environment, some external equipment is a large interference input, such as pumps and engines. These disturbances easily cause current fluctuations and affect the safety of the load. Therefore, galvanic isolation is particularly important in this field.
(2) In order to reduce product cost, high-frequency UPS does not contain these components, and the corresponding current stability is not as good as that of industrial frequency UPS.
2. The superiority of industrial frequency UPS equipment parts design
(1) The components of the industrial frequency UPS can be designed according to the customer's specifications and needs. Each component can withstand a higher rated power and have a longer life.
(2) The high-frequency UPS is designed to reduce costs, so its components only meet the minimum rated power requirements.
3. Strong adaptability to harsh industrial environments
The power frequency UPS is mainly designed to be used in harsh industrial environments, and the protection level reaches IP54, while the high frequency UPS does not have such adaptability.
(1) According to the sales experience of power frequency UPS, many devices can work normally for 15 to 30 years
(2) The design direction of power frequency UPS is to extend the continuous working life of the system to meet some application fields that require long life guarantee, such as petrochemical plants or power stations. But for more than 20 years, there is no need to replace equipment in its products, and the backup storage period of spare parts after shutdown is relatively longer than that of high-frequency UPS.
(3) The high-frequency UPS is not designed for industrial environments, so it can only be installed in a clean, safer, and predictable environment, such as an air-conditioned room, low temperature, and dust-free environment.
4. The superiority of power frequency UPS equipment life
The design life of power frequency UPS is more than 20 years, while the design life of high frequency UPS is 3-5 years.
(1) According to the sales experience of power frequency UPS, many devices can work normally for 15 to 30 years
(2) The design direction of power frequency UPS is to extend the continuous working life of the system to meet some application fields that require long life guarantee, such as petrochemical plants or power stations. But for more than 20 years, there is no need to replace equipment in its products, and the backup storage period of spare parts after shutdown is relatively longer than that of high-frequency UPS.
(3) The design life of the high-frequency UPS is only 3-5 years, and the equipment needs to be replaced after 5 years, and the reserve of spare parts is also extremely limited.
5. Convenient front-end maintenance
The self-maintenance time of the power frequency UPS system is very long, and the self-maintenance time of the high frequency UPS system is relatively short.
(1) The power frequency UPS is designed with convenient front-end maintenance, and can provide spare parts for a long time after the system is shut down, which is convenient for maintenance, and the use and maintenance service period of the power frequency UPS exceeds 20 years
(2) The purchase, use and replacement time of high frequency UPS is relatively short.
3. The superiority of the power quality of the power frequency UPS output
1. The unique input-output transformer of the power frequency UPS will not only prevent current interference from input interference, but also improve the quality of the final power output. In bad industrial environments like petrochemicals, the quality of the output power supply is good or bad. Will directly affect the safety of the entire plant equipment, personnel and production capacity.
2. Commercial UPS does not have the above components, so it does not have such a powerful function.
4. Powerful overload capacity
The power frequency UPS design has a strong overload capacity. When the equipment is overloaded, due to its strong overload capacity, the possibility of the UPS switching to bypass operation is very small, which will greatly increase the safety of the system. Because when switching to bypass operation, it means that the load is no longer powered by the inverter or battery.
The overload capacity of high frequency UPS is lower than that of power frequency UPS. When an accidental overload occurs, it is easy to switch from UPS to bypass operation. This will put the system in an unstable state, increasing the possibility of the bypass switch tripping due to instantaneous overload,
