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1). Voltage stability - a mains voltage is affected by the quality of electric power transmission line, the closer from the substation of the user high voltage of about 130 ~ 120 v, from low voltage substation remote users about 100 ~ 90 v, the voltage is too high or too low will the user equipment life, serious when burning equipment, use of on-line UPS power supply can provide stable voltage, voltage fluctuation is less than 2 v, can extend the life of the equipment and protection equipment.As below is a netcca product recommended:
2). Power failure protection: in the case of power failure, the battery is immediately converted from dc power supply to ac power supply by UPS uninterrupted power supply.As below is a netcca product recommende
3) high-low voltage protection -- when the voltage of a power supply is too high or too low,UPS built-in voltage stabilizer (AVR) will make appropriate adjustment to keep the voltage of the power supply in the usable range. If the voltage is too low or too high to exceed the usable range,UPS will convert the battery dc power supply to ac power supply to continue to protect the user equipment.As below is a netcca product recommended:
4). Frequency stability -- a power supply frequency is divided into 50Hz/60Hz, the so-called frequency is the cycle of every second,50Hz is 50 cycles per second, Taiwan power supply frequency is 60Hz, the mainland is 50Hz. When the generator is running, the rotation speed will fluctuate due to the sudden change of the power consumption of the client. The power converted by UPS uninterruptible power supply can provide a stable frequency.
5) waveform distortion processing -- because the power is transmitted to the client through the transmission and distribution lines, the use of various machines and equipment often causes distortion of the mains voltage waveform, because waveform distortion will generate harmonic * equipment and will make the power system transformer temperature rise, generally required distortion rate <5%, generally UPS design distortion rate <3%.
6) monitoring power supply: with the intelligent communication interface and monitoring software of UPS, the power supply can be monitored by recording the mains voltage frequency, power failure time and frequency, and the schedule of UPS uninterruptible power timing switch can be arranged to save energy.
7). Suppression of common mode noise - common mode noise is generated between the live wire/neutral wire and ground wire.
8). Suppress horizontal mode noise -- -- a horizontal mode noise is generated between the live line and the neutral line.
9) surge protection: generally UPS UPS uninterruptible power supply will be equipped with surge absorber or tip discharge design to absorb surge to protect user equipment.
10)instantaneous response protection: when the power supply is affected by *, it may cause voltage bulge or sag or instantaneous voltage drop. The on-line UPS can provide stable voltage and make the voltage change less than 2V, which can extend the service life of the equipment and protect the equipment.
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