Such as the problem - how much battery can be configured to meet the two hours 1. What is the formula can be calculated? 2. What is its DC voltage? How much battery should it be?
Mountain 20K two hours need to be equipped with 32 100AH battery. China's more well-known battery brands are Panasonic, Yuasa, Ai Peisi, Hills and so on!
Need 20kva * 2h = 40kwh battery to 12v100ah battery, need: 40000vah / 1200vah = 34
Consider the input voltage, assuming 12 * 16 = 192v, then the two groups of 16 series and then a total of 32 parallel.
Actual calculation to consider the power factor, efficiency, the actual operating power and so on.
In fact, there is no accurate formula, I said to you can only be a common formula to estimate the battery backup time, or spare time required battery capacity.
Different brands of battery discharge rate are slightly different, even the same brand, different capacity battery discharge current and discharge rate is not a linear relationship, each brand has its own battery discharge curve.
You have to say exactly what we can calculate, we can calculate the battery according to the curve.
I would like to completely do not need this, even if it is calculated, we have to have a range in this number, Moreover, the battery with the use of time, internal resistance, discharge current, voltage has some slight changes, but the battery capacity level.
Simple formula can be calculated:
Capacity C = P / Udc x time H (P: machine power; Udc: battery voltage; H: standby time)
Mountain 20K nominal DC voltage is 240v
Calculated: 40 12V / 100AH ??battery, in two groups in parallel access. You can use two A20 battery cabinet.
Brand I recommend Panasonic, SUNEOM, SinoPower battery. These are 100% full capacity, good quality. Strongly recommended .....
Yes, the mountain 20K out of a new machine nominal DC voltage is 192v
