Category:power

Question:
previously we had a light in the evening with a very dark, did not meet rated power, especially in the evenings darker, as well as with the regulator in order to make a little bright lights And now it has no such phenomenon, and this is what is inside the original, please explain

Answer:
previous one in the evening light with a very dark, did not meet rated power, especially in the evenings dark, as well as with the regulator in order to make a little bright lights, but now there is no such phenomenon, and this inside because:
1. line is too long, wire cross-sectional area too small, resulting in the peak time-line on the road The voltage loss is too large.
2. transformer capacity is too small, when the peak time of electricity supply shortage.
do not have the kind of phenomenon, and shows you the electricity sector has already solved this shortcoming.

Answer:
Until then you must be the voltage is too low, because there are two: First, you are there, the distance from the power transformer (in the line at the end); second is the power transformer capacity is not enough can not satisfy the demand for electricity at night to light shows at night darker than the use of electricity during the day, even more inadequate transformer capacity, and voltage is definitely lower and so the light is even more dark. Now is not the kind of phenomenon, and shows the electricity sector have been for you to solve this defect (methods in general is to increase the capacity of the transformer).

Answer:
the past, because of shortage of electric power system in China, tension, and the formation of outdated equipment.
countries are now rich, and electricity as a basic driving force and life energy, we of course, deeply concerned. At present, China has abundant resources and power, so lights will not dim.

Chinese:电力输送问题

类别: 电力

问题:
在以前我们一到了晚上用的灯十分暗，没有达到额定功率，特别在晚上更暗，还有用稳压器才能让电灯亮一点，而现在却没有这种现象了，这里面的原来是什么，请各位解释一下

回答:
以前一到了晚上用的灯十分暗，没有达到额定功率，特别在晚上更暗，还有用稳压器才能让电灯亮一点，而现在却没有这种现象了，这里面的原因是：
1.线路太长，电线的截面积偏小，致使在用电高峰时在线路上的电压损失过大。
2.变压器的容量过小，当用电高峰时所供应的电力不足。
现在没有那种现象了,说明供电部门已经为你们解决了这种缺陷。

回答:
一定是你们那以前的电压过低,原因一般有两种:一是你那里离电源变压器的距离较远(在线路的末端);二是电源变压器容量不够,满足不了用电量的需求,到了晚上灯更暗说明晚上用电的比白天多,变压器容量更不够了,电压肯定更低,所以灯就更暗了.现在没有那种现象了,说明供电部门已经为你们解决了这种缺陷(方法一般是增加了变压器的容量).

回答:
过去是因为我国的电力系统短缺、紧张、设备陈旧而形成的。
现在国家富有了，电力作为最基本的动力和生活能源，大家当然关注了。目前我国电力资源充裕，所以电灯就不会暗了。