Basic parameters of APC Schneider UPS UPS

APC Schneider UPS UPS is mainly used in sensitive electronic equipment and occasions where power failure is not allowed, such as computer system, process control of production line, remote communication, medical equipment, airport, banking system, etc.

Basic parameters of UPS UPS

(1) The load can be divided into three types: small load below 10KVA, medium load between 10-60kva and large load above 60KVA.

(2) The harmonic content (distortion) of output voltage harmonic voltage will cause noise to the reference voltage and low voltage logic circuit.

(3) Nonlinear load refers to inductive load or capacitive load. In the computer system, the non-linear load is mainly the host computer, printer (especially laser printer) and display terminal; the linear load is mainly disk and tape equipment. Generally, small load is non-linear load; medium load is linear load which is similar to nonlinear load or one of them is slightly larger; while large load is generally linear load, because large load is composed of multiple devices, which fluctuates one after another in operation, and the total load is relatively stable in macro view.

(4) Step load when a part of the load is on or off, the load will change step. Because UPS can not correct this sudden change of current instantaneously, the output voltage of 9 will change accordingly. Small load because only a few devices are connected, sometimes 100% step load will appear. No more than 50% of the step occurs under medium load. However, the step load of more than 25% may occur only under abnormal operating conditions. The general inverter design can meet the step load less than 25%.

(5) Efficiency for a large system, efficiency must be high enough. For example, if a 125kva UPS has only 85% efficiency, the annual additional cost is equivalent to 30% of the initial investment.

(6) The volume of UPS is required to be as small as possible.

(7) The noise level of UPS UPS should not exceed the noise level required by its environment.