Job Recruitment Website - Property management - 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-ho
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.
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