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某新落成综合大楼住宅区某单元厨房中的一路电源线上有二个插座,出现了奇特故障现象:当仅在一个插座插入抽烟机(总功率150W左右),其电动机运转正常,机中照明灯也正常发光;但此时如在另一插座插入1500W的电水壶,则抽烟机灯光变得很暗,电动机转速也明显变慢。该单元内其他各路电源线上插座均无此现象。 测插座空载时电压220V,在插座①插入抽烟机负载,则电压略降;再在插座②插入100W灯泡,电压又略降;拔去插座②的灯泡,插入1500W电水壶,
There are two sockets on the power cord of a unit kitchen in a residential area of a new completed complex. There is a strange fault phenomenon: when only one socket is inserted into the smoking machine (with a total power of about 150W), the motor is running normally, and the lighting in the machine The lamp is also normally illuminated; but if a 1500W electric kettle is inserted in the other socket at this time, the light of the smoking machine becomes very dark, and the motor speed is also significantly slowed down. There is no such phenomenon in other power outlets in the unit. Measure the voltage 220V when the socket is empty, insert the cigarette load into the socket 1 and the voltage drops slightly. Insert the 100W bulb into the socket 2 and the voltage drops slightly. Pull out the bulb of the socket 2 and insert the 1500W kettle.