Bitcoin for Hydropower Station
Although many countries do not recognize the value and status of bitcoin, bitcoin is still popular in recent years, and its existence is controversial. Some people say that it has no practical significance, just a number. If it is not officially recognized by the world, mining is a constant waste of energy. Some people say & lt; No one can be sure whether bitcoin is a black horse or not
in fact, bitcoin is calculated and proced through computer networking, also known as mining. At the beginning, there was a personal computer to dig, but the efficiency was relatively low, and the cost of graphics card was low. Then there was a special bitcoin mining machine, ranging from several hundred to two or three hundred thousand yuan
when we talk about bitcoin, we naturally need blockchain because of the blockchain, bitcoin can become bitcoin. It is a secure general ledger for all payments and transactions. It can be said that everyone can contribute to the update. We need to solve a very complex mathematical problem by brute force& mdash; Hash algorithm to complete a block
many people want to know the value of a bitcoin. In fact, the price of bitcoin is changing all the time. We need to check the figures of that day. At present, the price of a bitcoin is less than 30000
AC can be easily increased or decreased by transformer, so as to realize long-distance transmission, and the rated voltage of electrical equipment with different power can be adjusted. This is an advantage of AC. power line can be connected with electrical equipment to realize power transmission. But wire resistance, current through heating, this heat is useless, nothing is wasted. In the transmission of electric energy, how to rece the energy loss is studied, so as to effectively use the power resistance
line, now it's me, so the power line loss is p = the total length of I2R line. Design L, the cross-sectional area s of the conctor, knowing that the starting resistance R = P L / s
the actual transmission power method, considering various factors, selects cross transmission voltage and conctor cross-sectional area according to different situations. Large generators proce voltages of 1500 V, 13800 V, 15750 V and 18000 V, which cannot be transmitted directly. In the power station, step-up transformer is needed to boost the power supply, and then it is transmitted to the remote. China's long-distance transmission uses voltage of 110000V, 220000v and 33000v, and voltage supply of 500000 V has been adopted in some areas. The highest test transmission voltage in the world is now 1.15 million volts. Voltage
long distance transmission is very high, and the direct application of electrical equipment, so the power area, as you said, according to different users, establish county-level substation, such as 220kV, 110KV, 35kV, 10kV substation, rece the voltage step by step, and the voltage drops to 10000 V, and send it to the power station that needs high voltage, and the voltage drops to low voltage of 220 / 380 V, for general users, such as families Schools, shops, organs, enterprises and institutions
with the construction and development of urban and rural areas, the distribution network for China's power consumption is increasing rapidly, and the task of 10kV power supply is becoming more and more important. In order to ensure 10kV power supply and distribution network with increased safety, economic and reliable operation, China has launched a matching power planning and practical design experience, For example, the design code of power supply system and technical specification for design of 10kV substation and 66kV and below overhead power lines, design specification for overhead distribution lines, design specification for insulation on overhead distribution lines, design specification for power engineering, 3 ~ 110kV High voltage cables, are included in the design code for rural power network planning and design as urban power grid planning and design guide and urban planning standard Code for design of power distribution devices "code for design of relay protection and automatic devices", "code for design of electrical measurement and energy metering devices" and "Atlas 10kV and below power distribution line project" Atlas 10kV and below power distribution equipment project "of" 10kV and below atlas ". Friends who are interested in consulting county power professionals can also borrow books from them.
photovoltaic power generation is essentially the same as hydropower generation
as long as the electricity is cheap
generally speaking, if the electricity charge is more than 30 cents, you can hardly earn money from mining.
for this virtual thing, the power consumption is terrible.
photovoltaic power generation is essentially the same as hydropower generation
as long as the electricity is cheap
generally speaking, if the electricity charge is more than 30 cents, you can hardly earn money from mining.