Electricity is not allowed in the dormitory. I want to produce electricity myself.

Introduction The dormitory is not allowed to use electricity. I want to produce my own electricity. How can I do it? If you are willing to spend about 200 yuan to buy 2 electric car batteries, the problem will be solved when I was in college. , I was in dormitory 4

Electricity is not allowed in the dormitory. I want to produce electricity myself.

If you are willing to spend about 200 yuan to buy 2 pieces

The electric car battery problem will be solved

When I was in college, I was among four classmates in the dormitory

One person spent 200 to buy 8 electric car batteries

Some Amini are more expensive and some are cheaper

Then connect the lines and turn on the lights to charge your cell phone

Playing PSP and plugging in the radio amplifier can be used until we fall asleep

And it only takes 2 days to charge once, which is quite good

I think a hair dryer is not a problem

< p>Might as well try it

Power cannot be sent if the voltage is below 400 Ω. The energy generated by the generator is entirely three-phase. Each phase of the three-phase power supply and its neutral point can form a bsingle-phase loop to provide power to users. Note that the switching circuit here cannot be called positive or negative pole, but should be called line end (called live wire in civil electricity) and neutral line (called neutral line in civil electricity).

According to regulations, the neutral line of a 380 volt civil power supply (three-phase) must not be grounded at the input (grounded at the end of the transformer. This Grounding is taken into account so as not to cause damage due to floating potential. At a potential higher than the supply voltage, there is some resistance in the earth between the user earth and the transformer earth. ).

The power supply method is a live wire and a neutral wire (neutral point lead wire) forming a loop, and there is also a ground wire connected to the single-phase power socket at 3 drivers. This takes into accounttakes into account the implementation of the leak protection function.

Detailed information

The grounding device of the three-phase power supply can play its proper role during operation, and its resistance of Grounding must comply with regulations. requirements. For various commonly used grounding devices, the permitted earth resistance (Ω) values ​​are:

(1) The working earthing of a transformer or generator with a power supply capacity of 100 kVA or more, R=4Ω .

(2) The working grounding of a transformer or generator with a supply capacity of 100 kVA or less, R=10Ω.

(3) When the neutral line of a low-voltage distribution system of 100 kVA and below is repeatedly grounded, R=10Ω; when there are more than three repeated groundings, R=30Ω;

(4) Grounding protection partsnon-live metal parts of electrical equipment, R=4Ω; protective earthing of equipment equipped with fuses less than 25A in the input wire, R=10Ω.

(5) The grounding of the low voltage line tower or the insulating pin of the low voltage input line, R=30Ω.

Baidu Encyclopedia — Three-phase electricity

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