Li Zhi looked at the generator for a long time and asked with a smile: "How many kilowatts is this generator?"
Cai Huaishui, the general manager of the state-owned factory, changed his face and said, "I heard Chen Yiming say it seems to be three thousand kilowatts."
Seeing that Cai Huaishui was not clear about the specific figures, Li Zhi frowned and asked, "Where is Chen Yiming?"
Cai Huaishui said in a panic: "I informed him twice yesterday and told him to come here on time and wait for your question, Your Majesty. I don't know why he didn't come today. I just sent someone to the power laboratory and couldn't find him. I went to look for him at home.
, and no one."
The general manager of the power company stood up and said: "Your Majesty, I know these parameters. There are two hydroelectric generators under the reservoir. We have one here and another one in the west. Each of them is 3,000 kilowatts. The total of the two hydroelectric generators is
It’s four thousand kilowatts.”
"oh?"
It turned out that it was only 6,000 kilowatts. This number made Li Zhi a little disappointed.
Li Zhi originally designed this dam with an installed capacity of at least 10,000 kilowatts.
Li Zhi calculated in his mind that if each household uses three incandescent lamps during peak electricity consumption, this hydropower station can only meet the electricity needs of 150,000 people.
This is under the premise that all households only use electric lights and no other electrical appliances. In the future, with the invention and popularization of various electrical appliances, electricity consumption will rise linearly. If only such small generators are used, I don’t know how many generators will be built.
Power station.
Li Zhi nodded and said: "After all, it is just the first hydroelectric generator." After a pause, he continued: "But this kind of power cannot meet the increasing demand for electricity in one town and nine provinces. Now there are many
People in rural areas are eager to have electricity!"
"Let Chen Yiming and the people in the Electric Power Laboratory work harder to make a more powerful generator!"
The manager of the power company looked at Cai Huaishui who was standing aside.
Cai Huaishui hurriedly said: "What the prince taught me is that I will send more manpower and funds to the power laboratory so that they can double the power of the generator as soon as possible."
Li Zhi no longer struggled with the issue of installed capacity. He turned to look at the wires and asked, "Has the transformer been built as well?"
Gao Ligong quickly replied: "The transformer has been built, I will take the prince to see it."
In another machine room outside the generator set, Li Zhi saw a huge transformer.
Transformers are necessary devices for long-distance power transmission.
Any conductive material has resistance, and will generate heat and consume electrical energy when current passes through it. Even if a steel cable as thick as a finger is used as a transmission line, a huge resistance will form over a long distance. If the output voltage of a generator is used for power transmission,
Probably most of the current will be consumed on the transmission path.
According to electrical principles, the higher the voltage of the passing current, the smaller the heat generated by the wire passing through the wire. Therefore, for long-distance power transmission, high-voltage power transmission must be used.
To convert low-voltage electricity into high-voltage electricity, a transformer is needed.
A transformer is a device that uses the principle of electromagnetic induction to change AC voltage. The main components are a primary coil, a secondary coil and an iron core. To put it simply, two sets of insulated electric coils are wound around both ends of an iron ring. When the primary coil end
After current enters, the wires surrounding the iron core will generate variable magnetic flux in the iron core. This electrical phenomenon will cause electromagnetic induction, causing current to also occur in the secondary coil surrounding the iron core.
The output voltage of the secondary coil is directly related to the number of turns of the secondary coil. The more turns, the higher the output voltage.
Taking advantage of this electromagnetic phenomenon, later generations of scientists invented the transformer at the end of the 19th century.
Of course, to produce a practically usable transformer, its structure is more complicated than this principle. As long as it is a large transformer, there will inevitably be copper losses, iron losses and magnetic leakage, etc., which will lead to the consumption and leakage of electrical energy. In order to reduce
These losses require a set of specific response methods.
For example, the iron core of the transformer cannot be made of simple iron wires, but is made of E-shaped iron sheets laminated according to Li Zhi's design. This can greatly reduce magnetic leakage.
Li Zhi looked at the outside of the generator and suddenly said: "It doesn't seem to have reached the voltage I designed."
Cai Huaishui's face turned cold, and he cupped his hands and said: "Your Majesty is very sharp, this is indeed not up to the voltage designed by Your Majesty. During the actual construction, we found that the iron core heated up very seriously, and in any case it could only reach a voltage of five thousand volts. Going up further,
The iron core can no longer hold up."
Li Zhi nodded, looked at the silent but infinitely powerful transformer, and said, "It's pretty good that the first transformer can reach 5,000 volts. Thank you for your hard work." "So the transformer in Tianjin Acropolis is also
We have already done?"
The general manager of the power company quickly replied: "Yes, Your Majesty, we built twenty-three miles of telephone poles along both sides of the official road, and transported the five thousand volts of high-voltage electricity to Tianjin Acropolis, which is in urgent need of electricity. Now.
The transformer at the northwest corner of Tianjin Acropolis has been built. After our current reaches the Acropolis, it is reduced by the transformer to 200 volts of civilian electricity."
"The power grid inside Tianjin Acropolis has been built a long time ago. Because the prince only charges extremely low installation fees and usage fees for light bulbs, many families have installed light bulbs and are waiting for electricity from the power station. So the hydropower station circuit was connected five days ago
, half of the Tianjin Acropolis is lit up." "My lord, if you go to the snack street now, you will find that it is brightly lit by the electric lights of various shops. Many people go there to buy midnight snacks at night."
Li Zhi was very happy when he heard this and laughed.
With electricity, Tianjin will naturally become more and more prosperous.
Li Zhi was asking questions there when he heard the sound of horse hooves outside the window. Chen Yiming, an expert from the Electric Power Laboratory, rushed over on horseback in a panic. As soon as he arrived at the entrance of the hydropower station, he rolled off his horse and rushed into the hydropower station without tying the horse.
.
Li Zhi smiled and said, "The experts are here!"
Chen Yiming was sweating, and he bowed in panic and said: "Your Majesty, please forgive me. I was doing an experiment on magnetic flux leakage phenomenon in the university. I accidentally missed the time and kept Your Majesty waiting for a long time."
Li Zhi asked: "Chen Yiming, you are now our No. 1 electric power expert in Fanjiazhuang. Tell me, how many years will it take for the generator unit capacity of this hydropower station to double? How many years will it take for the voltage of the transformer to double?"
Chen Yiming stood up straight and said loudly: "Back to the prince, it only takes one year to complete all the research projects required by the prince."
Li Zhi smiled when he heard this. He was very satisfied and decided not to punish Chen Yiming for being late. "Chen Yiming, you have to keep your word. If the task cannot be completed by then, I will give your title of chief engineer to someone else."
""Don't worry, Your Majesty, we will definitely complete the research!"
