December 21, the day before the winter solstice.

Snowflakes fell from the sky, and the entire north was frozen for thousands of miles, and the snow drifted for thousands of miles, and it was covered in silver.

When Qin Feng stepped off the plane, facing the north wind, he exhaled countless cool breath from his mouth, and he couldn't help but want to shout, I, Qin Feng, are back again!

There is a green military coat everywhere, and in this cold winter, only the military coat can withstand the severe cold and give a bright color in front of people's eyes.

However, there are also different colors, a red tweed coat stands out among the green military coats, very conspicuous, in those bloated crowds, she is like a curvaceous white swan, but the white swan's face has been frozen red.

Qin Feng walked over quickly and grabbed her hand: "Is it cold or not?" ”

Zhao Jiao had a smile on her face: "It's not cold, I'm from the Chocolate Building, and the people inside wear it like this, and foreigners also wear our bell signs." ”

Bell brand wool tweed coat, the main product of the magic capital suit factory, not only the first in China, but also won the American Alpha Richard company bronze medal and the international wool bureau issued a pure wool mark license, after the opening of the country, the products are sold to many countries and regions in the world, and obtain a good reputation in the international market.

Don't look at Zhao Jiao's thin clothes, beautiful and moving, but not freezing at all, this is 100% pure wool, and the kind of dog meat sold on the head of a sheep in later generations, talking about wool, is actually a chemical fiber thing.

"Mr. Qin, Mrs. is here to pick you up, then let's not bother, farewell!" Zheng Ming's voice came from behind him.

The big guys came back together, but the things they had to do when they came back were different.

"My wife is here by car, so I can take you back together."

"No, someone has already come to pick us up."

Out of the airport, Qin Feng got on Santana, Zhao Jiao started skillfully, driving, and the automatic transmission was also familiar with the road.

"Brother Mulatu didn't come back with you?"

"I have to deal with the matter of that batch of gold, and I am busy with his grandfather, they are already preparing for the establishment of the country in the future, and I don't think Mulatu's studies will be completed." Qin Feng said.

With those tanks and armored vehicles, and plenty of fuel from the Yankees, the EFLP will definitely quickly sweep across the country and win in the future, and the next thing is the founding of the country, and Muratu is regarded as the training of the country's management talents, and now it will stay and play a role.

"Oh."

"How's going on in the factory?"

"The first motorcycle engine has been built." Zhao Jiao said: "The batch of production equipment from the United States has also been installed. But..."

"But what?"

"The big guys are worried about that batch of equipment, Brother Feng, the power supply used by that batch of equipment is different from our domestic power supply, and it can't be used directly, and German experts have also been invited over and are discussing how to deal with it."

Qin Feng smiled: "This is not a big deal, let's go to the Capital Motor Factory and the Capital Gear Factory first to see if the equipment I ordered before has been built, and then go back with the equipment." ”

Pingwang Motorcycle Factory, conference room.

Gerrish sat in the main seat with a serious expression, and next to him, Zvekau, an expert from Volkswagen, was announcing his conclusions in a serious manner.

"This batch of equipment is produced for the American factory, the United States uses 460 volts, 60 Hz industrial electricity, and you use 380 volts and 50 Hz industrial electricity, the voltage problem can be solved by transformers, but the frequency problem is unsolvable, the frequency is different, the speed of the motor is different, the speed of the production line is different, this can not be changed, so, I'm sorry, you may not be able to use this batch of equipment."

Hearing Wang Fang's translated words, Da Dawei immediately stood up: "For this batch of equipment, our company spent 20 million US dollars!" Our team of nearly 20 people, working in the United States for more than half a month, before the equipment was unpacked and packed, and it took a long time and a lot of money to transport. ”

Dawei was very angry, this batch of equipment was their hard work!

Stamping, welding, painting, final assembly, so much equipment, there are dozens of robotic arms on it, this is the world's most advanced automobile production line, more advanced than the production line of BAIC motorcycle! Who would have thought that it wouldn't work now! Wouldn't the $20 million fund and a month or two of hard work be in vain? Thinking of this, Dawei was very angry.

"I'm sorry, the procurement requirements were put forward by Mr. Qin, and he was still very anxious, although we opened a production line in Santana in the East, but the person in charge of this project and the person in charge of the American project are not the same batch, we have not communicated much with each other, I personally regret the current result."

"Zvekau, can we solve it by technical means? For example, if we modify the circuit, can we solve the problem? Gerrish asked.

"Yes." Zvekaw nodded: "However, if you want to modify the circuit, you need a professional team to do it, and if the project is done by our domestic equipment supplier, it should cost about 50 million US dollars." ”

"Fifty million? We only bought this batch of equipment for 20 million dollars, and now it will cost 50 million to modify the circuit? Da Dawei stood up angrily, almost reaching out and pointing at Zvekaw's nose to scold his mother, and then was stopped by Guo Jianmin on the side.

"Director Pang, you are the deputy director of our Pingwang Motorcycle Factory, pay attention to your words and deeds, don't expose rudeness in front of foreigners, this will discredit us Orientals."

For Guo Jianmin, this is not bad news, the factory has been better, only the production of single-cylinder diesel engines can live a very moist life, motorcycle projects, whether there are setbacks, or even whether it can go on is not important, a company in the process of development, will always encounter problems, we will lie down if we fall, no big deal.

At this moment, a cold wind suddenly came from outside, and the big guys turned their heads and looked at the door.

Who came in without knocking?

Secretary Zhao, Mr. Qin's wife?

"Secretary Zhao, is Mr. Qin back?"

"Secretary Zhao, we need Mr. Qin's ideas!"

"Secretary Zhao, we have been scolded by the Germans, let's go to them for compensation!"

Guo Jianmin hurriedly glanced at the person sitting in the right position, brother, pay attention to what you say, the people at Volkswagen are Germans, and our factory director is also German, what do you mean by being scolded by the Germans?

"Mr. Qin is in the power distribution room, ready to install new equipment, let me call you over to have a look."

New equipment?

The big guy immediately stood up, and all of them ran out, leaving only a few people.

Gerrish looked at Wang Fang curiously, so Wang Fang hurriedly translated it: "Mr. Qin is back and has brought new equipment, which should be able to solve this problem." Can you go over and take a look? ”

Mr. Qin is back, can he still solve the problem?

Zweikau frowned and muttered, "Impossible, what can Mr. Qin do to solve the problem?" ”

"Zvekau, let's go and have a look." A smile finally appeared on Gerrish's face: "Qin is always a person who is good at invention and creation, and when he encounters various problems, he can find ways to solve them, and he uses methods that we can't think of." ”

The voltage can be changed, but how can the frequency be changed? In this day and age, frequency is an unsolvable problem!

In 1831, the famous physicist Faraday discovered the law of electromagnetic induction, which created the conditions for the large-scale use of electricity by human beings, because this law revealed the source of electricity: in addition to batteries, it can also be generated by electromagnetic induction!

To put it simply, the coil can induce the current when it cuts the magnetic inductance line, and the coil rotates for one week to complete a periodic movement in the magnetic field, and the current will undergo a periodic change. For the battery, the positive and negative electrodes are determined, and for this induced current, the positive and negative are alternating. This leads to a physical quantity that needs to describe how fast or slow this change is: frequency.

When alternating current was first born, electricity of different frequencies appeared.

In the United States, Sweeting and Tesla conducted experiments separately, and found that the frequency was low and not easy to use: the electric light would flicker, and it had to be above 50 hertz, so the naked eye could not feel the difference, so they set the frequency to 60 hertz.

However, if the frequency is 60 Hz, the speed of the three-phase motor reaches 3600 rpm, which puts forward high requirements for bearings and so on, and it is not easy to achieve, if 50 Hz, it is 3000 rpm, so it is better to achieve some.

Therefore, after some comparison, Europe chose the standard of 50 hertz, that is, the positive and negative poles are changed 100 times per second.

Due to the huge cost of building a power grid, once the grid standard is formed, it will not change.

As for the East, when the Empress Dowager Cixi was in power, the palace used light bulbs and drove cars, because the car was driven by sitting, and it was also reported that the Empress Dowager Cixi asked to drive the car on her knees, because the power generation equipment was from abroad, and the voltage and frequency were varied, and in 1928, the Yapur company proposed to the government at that time to stipulate 200 volts and 50 Hz alternating current as the voltage and frequency standard.

In 1930, this set of standards was officially adopted and implemented throughout the country, and after liberation, it also transitioned to the standard of 220 volts and 50 Hz.

In the eighties, the power technology was still backward, for the alternator, the speed of the 60 Hz unipolar motor was 3600 rpm, and the 50 Hz was 3000 rpm.

How can Mr. Qin break it?

Zvekau couldn't think of it, and with doubts, he followed everyone to the substation room, and before he could go in, he heard a sigh of emotion from inside.

"President Qin is mighty!"

"Mr. Qin is too powerful!"

"It's so easy to solve, and the Germans said they would ask for 50 million dollars!"

Although Zweikau couldn't understand Chinese, he could understand the emotions in the words, so happy, was it solved?

Impossible, how can they solve it!

With doubts, Zvekaw walked in and saw that the originally empty substation room was full of people, and it looked very crowded, but the main reason was that there was an extra set of equipment here!

Two huge cylinders are being placed on the base by the forklift, and those who are in the know know at a glance that they are motors, and between these two motors, there is also a flat plate shaped device, which looks like...

Gearbox?

Zvekau suddenly understood.

Two motors, one of which is an electric motor, are connected to the outside power line, and the input is 380 volts, 60 Hz of industrial electricity, which passes through the motor, converts it into mechanical energy, and then drives the opposite generator!

If these two machines are directly connected, the frequency cannot be changed, so a gearbox must be passed through the middle to increase the speed of 3000 rpm to 3600 rpm, which is actually a pair of gears, and the gear ratio is 5 to 6.

In this way, the generator on the opposite side is producing 60 Hz alternating current!

Zvekau had mixed feelings.

The 20 million US dollar cheap sale of equipment is because Mr. Qin wants to contact the FAW of the East for them to engage in a second cooperation project, which is related to the future of Volkswagen, and at the same time, in order to avoid cultivating competitors, they also have full preparations, and plan to use the different power sources to pit the Easterners, so that they can buy the equipment but cannot use it, and finally can only be scrapped.

Who would have thought that this Mr. Qin would actually solve the problem! The solution is a set of electric generators!

Among them, there must be energy loss, the efficiency of the motor and the generator are between 75 and 95 percent, to the East estimates a relatively high value, 90 percent, so that the circuit conversion past, the efficiency is 81 percent, and then deduct the gear loss of 1 percent, the conversion efficiency of the power supply is only 80 percent.

However, 20 percent of the loss is nothing, because Dongfang can use this equipment after all!

As long as this equipment can be used, it will be worth it!

According to the estimates of Volkswagen's technical team, if this equipment is used, all the equipment with motors will have to be removed and replaced with a motor suitable for 50 Hz, or the internal gear structure will be changed, in short, the work will be very large, similar to redesigning a production line.

They never thought of changing the power generation equipment, this thing is infrastructure construction, no matter how capable Mr. Qin is, can he still build a special power plant for this production line?

However, it was really done in front of me, and the motor generator completed the conversion of the power supply!

At this time, Zvekau was not only shocked, but also shocked.

Qin Feng was directing the installation, and turned his head to look over: "Director Ge, Mr. Zvekao, take a look, how about my set of equipment?" ”

Gerrish nodded: "Mr. Qin, your method is so good, it solves the problem perfectly, I really didn't expect that there is a 60 Hz generator in the east, as well as a supporting gearbox." ”

"There was no before, but after we purchased production equipment from Volkswagen in the United States, I ordered these two motors from the Capital Motor Factory, and ordered the speed increase gear from the Capital Gear Factory, the time was just right, our production line was installed in place, and these equipment were also built."

Zvekau's body shook.

At the meeting, Zvekaw also swore that the Oriental people could not use this kind of equipment because the power supply did not match, and now, he finally understood how ridiculous he was: Mr. Qin had already taken into account the problem of power supply when he asked for procurement, and he had already thought of a solution!

I am too sloppy, Qin can always be a blockbuster in Europe, there must be a few brushes, and I think Qin is too simple!

"Mr. Qin, how did you come up with the idea of solving the problem in this way?" Zvekaw barely suppressed the tremors of his voice and tried to calm himself down, which was his biggest problem.

"I thought of it from eating and rolling."

Wang Fang glanced at Qin Feng with complicated eyes, fortunately, Qin Feng communicated with them in English, and he didn't need to translate it himself, but it was still a direct transliteration in Chinese, which seemed to be very unelegant.

"Mr. Qin, what is eating and rolling?"

"It's the radio station of the old tube technology era." Qin Feng said: "The battery can directly supply power to the filament, but the work of the electron tube also needs high voltage, and it is not easy to generate continuous high-voltage electricity with the battery, so there is a lot of power supply to the motor, so that the motor can run, drive the generator in the same casing to run, and send out high-voltage direct current." ”

Everyone is an old veteran in technology, and of course they know about this ancient device, but they are still puzzled: "Why is it called eating and rolling?" ”

Wang Fang glanced at Qin Feng again with a complicated look.

How to explain it? Pull while eating, there is a motor shaft rolling inside, so it's called eating and rolling, see how Qin Feng translates!

"Ahem, it's just a common saying, let's see if the power is enough, we will pull a power line over and go to the workshop of American equipment." Qin Feng changed the subject.

"Mr. Qin, are you sure you only use this production line to produce motorcycles, not cars?" Zvekau knew that it was no longer possible to turn these devices into garbage, so there was only a simple remedy.

"Of course, our factory is called Pingwang Motorcycle Factory!"

"Mr. Qin, does our motorcycle brand need to be changed?" Wang Fang spoke.

"Why?"

At the beginning, Qin Feng just wanted to help his father solve the problem of the rubber shoe factory, and in order to avoid being affected by his previous reputation, he wanted to fool his father to change the name of the factory, but his father firmly refused.

So, Qin Feng also complied with his father's wishes, even if he went abroad, he played the Pingwang brand.

Motorcycles, cars, and so it is natural to call Pingwang brand.

However, the name seems to be somewhat... Not domineering enough.

"Mr. Qin, you go to our university campus to recruit, that is the signboard of the Pacific Company, this sounds so imposing, now, you have more and more projects, the company is growing and growing, and the structure of this company has to be changed."

Qin Feng looked at the people around him: "Everyone is busy first, Director Ge, I'll leave it to you!" Xiaofang, let's go to the office and say. ”