How to buy home UPS power
How long will the electricity last?.1. determine the required UPS capacity: calculate all the load sum W=W1+W2+...... +Wn unit: Watt UPS capacity VA (W = (UPS / 0.8) power factor and considering the impact resistance and the expansion of the need of UPS)2., determine the type of UPS required: according to the load on the output stability, switching time, output waveform to determine the choice of online, online interactive, backup, and sine wave, Fang Bo and other types.
In order to improve the reliability of the system, it is recommended to adopt the UPS hot backup system, which can consider series hot backup or parallel hot backup.Small capacity UPS (1 ~ 2KVA) can also use redundant switches.You can use the remote monitor panel to monitor and control UPS at the far end.Monitoring software can be used to realize the intelligent management between computer and UPS.Network adapters can be used to implement network management of UPS (based on SNMP).In some rainy thunder region, can be equipped with lightning protection device.
Because the UPS is heavy, and the connection of the large capacity model is more complicated, it is necessary to come to the house to maintain, so we should select the supplier with better after-sales service quality.From the credibility, technical strength, service institutions, maintenance parts and other aspects of inspection, and recommend the selection of nearby UPS suppliers.
Determine the required battery backup time: after the power down, the equipment required to work time.Batteries used in long delay models may cost more than the UPS host itself.Because of the high value of the battery, it is recommended to choose a better quality brand, which is critical to the reliability of the UPS system.
The output stability and instantaneous response ability of on-line UPS are stronger than those of the other two, and the adaptability to nonlinear load and inductive load is also stronger.For some of the more sophisticated equipment, more important equipment and high-end servers, such as the use of online UPS.In some areas with large fluctuations in electricity, avoid interactive and backup.To use a generator with a short delay UPS, an on-line UPS is recommended because the stability of the voltage and frequency of an ordinary generator is poor, and interaction and backup may cause an abnormal operation.Some brands of UPS (online) can not receive motor turn bypass power supply, the purchase should first understand clearly.
