It is always kept as substitution source electrical power when the main source is off
. This generator should be equipped with UPS. UPS is uninterrupted power supply commonly called as UPS. This UPS will help you to give a back up power while waiting for the generator to work. It is very helpful device. You will need UPS if you a company which has many electronic equipment. As we know that electronic equipment will be broken if it is not turned off properly.
There are two major UPS, online UPS and offline UPS. They have different function. As its name online UPS will work continuously. Usually, this UPS help you to protect your electronic equipment from power failure. You should know the danger of having power failure. If you use your elevator then the power is suddenly off, you could harm your life. In the elevator you will lack of oxygen than you will die slowly. It also could make you lose some important data in which will lead you to your loss or company's loss. Thus, generator is needed in this situation. You will need some time to turn on your generator. Here, I advise you to have UPS. Some companies have problems with their main power source, the electrical point sometimes get down. This condition of course could make your electric equipment especially your PC broken. Thus, people use UPS online to protect their electric equipment from a problem like this.
Offline UPS is used when the main power source cannot be operated at all. The offline UPS will take care of the main power's job for a while. Of course UPS will be so helpful if you, a company who have this kind of problem. This UPS will work till you could turn on your generator. So, please do not forget to equip your generator with UPS.