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info@upspowersupply.netWhat are the UPS Requirements for the Inverter?
The inverter is located between the rectifier and the static switch in the UPS. As a core part of the UPS, it mainly converts the DC output by the rectifier or the accumulator into the 50Hz AC, and then sends it to the static switch and provides it for the load equipment.
Below are major requirements of the general UPS about the inverter:
The output AC voltage should be stable. Either the input voltage fluctuations or voltage fluctuations triggered by other situations require the output voltage of the inversion to be within the steady precision scope. Under the condition of static voltage, the voltage fluctuation is generally around ±2%。
The output AC frequency should be controlled within the scope of stabilization precision, and the fluctuation is generally around ±0.5% under the static voltage.
The output voltage and frequency of the inverter are adjustable, and the output voltage can be regulated within the scope of ±5%. The output frequency can be regulated within the scope of ±2Hz.
The inverter should be capable of overload protection by 125% to 150%. When the overload reaches 150%, it can continue for 30s; when the overload reaches 125%, it can maintain 1min or longer. The UPS overload protection can ensure normal operation when the overload reaches 115%. 10min when the overload reaches 125%. 1min when the overload reaches 150%. 1s when the overload reaches 200%.
The output waveform features the sinusoidal wave. To reduce the harmonic distortion, the small-scale distortion rate should be controlled within 7% for the convenience of narrowing down the filter’s volume.
The inverter should be capable of short-circuit, overload, overheating, overvoltage, and under-voltage protection and alarm.
The inverter should be started steadily and with a small launch current, and operate steadily and reliably.
The inverter should recycle the conversion current to reduce the conversion loss as much as possible so as to improve the inverter’s efficiency.
The inverter should be capable of quick transient response.
Below are major requirements of the general UPS about the inverter:
The output AC voltage should be stable. Either the input voltage fluctuations or voltage fluctuations triggered by other situations require the output voltage of the inversion to be within the steady precision scope. Under the condition of static voltage, the voltage fluctuation is generally around ±2%。
The output AC frequency should be controlled within the scope of stabilization precision, and the fluctuation is generally around ±0.5% under the static voltage.
The output voltage and frequency of the inverter are adjustable, and the output voltage can be regulated within the scope of ±5%. The output frequency can be regulated within the scope of ±2Hz.
The inverter should be capable of overload protection by 125% to 150%. When the overload reaches 150%, it can continue for 30s; when the overload reaches 125%, it can maintain 1min or longer. The UPS overload protection can ensure normal operation when the overload reaches 115%. 10min when the overload reaches 125%. 1min when the overload reaches 150%. 1s when the overload reaches 200%.
The output waveform features the sinusoidal wave. To reduce the harmonic distortion, the small-scale distortion rate should be controlled within 7% for the convenience of narrowing down the filter’s volume.
The inverter should be capable of short-circuit, overload, overheating, overvoltage, and under-voltage protection and alarm.
The inverter should be started steadily and with a small launch current, and operate steadily and reliably.
The inverter should recycle the conversion current to reduce the conversion loss as much as possible so as to improve the inverter’s efficiency.
The inverter should be capable of quick transient response.
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