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The three ammeters on the 380V power distribution cabinet show 50a, 70A and 90a. How to calculate the power of the office building? Is it the maximum current? The essence of the problem is: is 90a the overall load of the building,
After calculation of each phase, the summary: P1 = I * u * power factor = 50 * 0.22 * 0.8 = 8.8kw, P2 = 70 * 0.22 * 0.8 = 12.3kw, P3 = 90 * 0.22 * 0.8 = 15.8kw, summary: P = 8.8 + 12.3 + 15.8 = 37KW
230 / 380V 4. If it is used on the voltage of 220 V, how much electricity can it bear? How much current can the meter of 10 A (50 a) 220 V bear
How much current is this meter?
230 / 380V is the rated voltage of air switch, 4.54a is the rated current, if it can bear 1kW power consumption on the voltage of 220V, 10a (50a) 220V meter can bear 50A current
How to measure the current of single phase wire with clamp ammeter
When using the clamp ammeter to detect the current, you must clamp one wire (wire) to be measured. If you clamp two parallel wires, you cannot detect the current. In addition, when using the clamp ammeter Center (iron core) to detect, the detection error is small. When checking the power consumption of household appliances, it is more convenient to use the line separator, some line separators can detect
Is an ammeter equivalent to a wire in a circuit
It is helpful for the responder to give an accurate answer
It depends on when,
If it's in junior high school, it's a good way to learn,
To high school, in-depth study, you know, the working principle of ammeter, it has resistance!
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