How to configure power supply time for UPS UPSThe matching UPS power supply is selected according to the power of the equipment. For example, the equipment that needs to be operated is a computer (refer to 350W), and a 500VA UPS can be configured. The choice is: the power of the device is equal to UPS of UPS, except for the power factor of 0.8.
According to equipment power, delay requirement. Make configuration plan. The longer the delay time is, the more the battery capacity or quantity will be configured.
Battery capacity calculation method Battery capacity must be the capacity that can be provided to the load at a given voltage and time. The following is a description of the capacity calculation method:
1. The necessary condition for calculating capacity.
A. It is necessary to clarify the change of load current and its change with time during discharge.
B, the maximum time of load that the discharge time can expect.
C. The lowest temperature of the battery is determined by presupposing the temperature condition of the place where the battery is placed. Generally set indoors for 50C, set in special cold areas indoors when -50C. When air conditioning is used to ensure indoor temperature, the actual temperature is used as the minimum temperature.
D. The allowable minimum voltage per cell (V/cell) = (the allowable minimum voltage of the load + the voltage loss of the conductor)/the number of series lattices 2, the calculation formula of capacity C = 1* [K1I1 + K2 (I2-I1),,,,,,,,,,,,,, KN (IN-1)]/LC: 250C rated discharge rate conversion capacity (AH),,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, and UXL batteries are 10HR capacities. L: Corrected values for capacity changes due to changes in maintenance factor, years of use and conditions of use. The general L value is 0.8. K: The capacity conversion time is determined by the discharge time T, the minimum service temperature of the battery and the allowable minimum voltage. I: discharge current subscript 1,
2, K, N: For example A, discharge current 140 A (definite) B, discharge time 30 C, minimum battery temperature 550 CD, allowable minimum voltage 1.6 V/cell, K = 1.1C = 1X1.1X140 = 192 (AH/10HR)/0.8 can be used according to the above conditions. Note: the above example is a simple load type battery capacity calculation for discharge current.