ABB PFTL101B-20KN/3BSE004203R1 Pressure sensor Pillow type load cell
Brand ABB color Standard Application Industrial height 239mm rated current 258mA
Protection level IP45 Suitable for motor power 236KW Application Site Power Industry Material Code GJR2391500R1220 Power industry HIEE401782R0001 Part No. PFTL101B 20KN 3BSE004203R1
Applicable pipe 2 Whether imported is weighing 1.66 kg can be sold nationwide
ABB PFTL101B-20KN/3BSE004203R1 Pressure sensor Pillow type load cell
Develop photovoltaic grid-connected technology
A major advantage of grid-connected photovoltaic power generation is that it can replace the consumption of fossil fuels. Because photovoltaic grid-connected generation increases the rotational reserve or thermal reserve of the rotating generator in the power plant, the actual consumption reduction ratio of photovoltaic grid-connected generation should deduct the energy lost by rotary reserve or thermal reserve. Because the power system is operated as a whole, photovoltaic grid-connected power generation to the grid will violate the interests of other power producers, which is also an issue that needs to be considered as a policy maker. Whether the emission reduction effect of photovoltaic power generation should only consider the sulfur dioxide and carbon dioxide emissions of thermal power remains to be studied, because when photovoltaic power generation is connected to the grid, the power grid company is also considering the safety, stability and economy of the grid, so it is not only the thermal power plant that often reduces its output, especially when considering the rotating backup, it is not only the hydropower plant to undertake the rotating backup task.
Grid-connected photovoltaic inverter system is generally composed of photovoltaic array, converter and controller, wherein the converter can convert the energy emitted by photovoltaic cells into sinusoidal current into the grid, the controller mainly controls the tracking of the maximum power point of photovoltaic cells, as well as the waveform and power of the grid-connected current of the inverter, so that the power transferred to the grid and the maximum power generated by the photovoltaic array match.
Among them, solar photovoltaic power generation is one of the most promising ways of new energy and renewable energy, it can convert the direct current of photovoltaic cell modules to transmit energy to the grid after the inverter inverter, which can alleviate the problem of energy shortage to a certain extent, and will not cause any pollution to the environment. The construction of grid-connected solar power station is a systematic and complex project, from design to completion, from product procurement to commissioning and operation involving optics, electricity, electronics, communications, mechanics and materials and other professions, but also requires good coordination and cooperation between multiple departments.
3.3 Research on large-capacity energy storage technology
China is vigorously developing clean energy such as wind and solar energy, but these new energy sources are discontinuous or intermittent, small hydropower is also affected by the climate, rainy days but dry days do not produce. These power supplies require energy storage devices to be matched with them. For the intermittent power supply with small capacity, it can be stored by batteries and other devices, but for the large intermittent power supply, it is necessary to develop large-scale energy storage devices. One possible solution is to use surplus electricity to electrolysis water to produce hydrogen and oxygen, which can then be converted into electricity by fuel cells when energy is needed. At present, the efficiency of industrial water electrolysers is between 60% and 80%, and the efficiency of generating electricity through fuel cells is about 45% to 65%. The fuel cell technology is still in the experimental stage, so a lot of research needs to be done on this approach.
3.4 Distributed power grid connection protection
The primary energy of distributed power supply is generally gas fuel and various renewable energy sources; Secondary energy is the distribution of cold, heat, electricity and so on on the user side. It combines power, heat, refrigeration and energy storage technology to directly meet the needs of users for energy and realize the cascade utilization of energy to improve the utilization rate of energy, save energy and protect the environment. Distributed power supply with internal combustion engine as the front part of the cold, hot, electric triple supply system; Distributed power supply with gas turbine or micro gas turbine as the front part and flue gas lithium bromide absorption refrigeration unit as the back end part; The gas turbine is used as the front part of the distributed power supply, and the waste heat boiler and hot water lithium bromide absorption refrigeration unit are used as the back end. Fuel cell or biomass energy for the front part of the triple supply system. The structure form of distributed power supply can improve the utilization rate of thermoelectric unit. Develop cascade utilization technology of thermal energy, combined production technology of heat, electricity and cold, and triple supply technology of heat, electricity and gas, and improve the comprehensive utilization rate of thermal energy.
ABB PFTL101B-20KN/3BSE004203R1 Pressure sensor Pillow type load cell
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