Property staff came to Xiaohua's house to collect electricity. He observed the situation of Xiaohua watt-hour meter as shown in the picture, and then found out the instructions of last month's watt-ho

Property staff came to Xiaohua's house to collect electricity. He observed the situation of Xiaohua watt-hour meter as shown in the picture, and then found out the instructions of last month's watt-hour meter from the notebook. (1) according to the electric energy meter shown in the diagram, the electric energy representation number is 1485.6kW? h，

Electricity consumption this month 1485.6kW? h- 1245.6kW？ h=240kW？ h，

The electricity bill payable this month is 240kW? H×0.45 yuan /kW? H= 108 yuan;

(2) As can be seen from the figure, the parameters on Xiaohua's electric energy meter are: 1200r/kW? h；

The number of revolutions of the turntable of Xiaohua watt-hour meter is: 1200r/kW? h×240kW？ H=288000 rpm.

(3) According to the illustrated watt-hour meter, the voltage of the watt-hour meter is 220V during normal operation.

The maximum allowable current is 20A, and the maximum total power allowed by the electric energy meter is p = UI = 220v× 20a = 4400w;

So the answer is: 240; 108; 288000; 4400.