博文

目前显示的是 五月, 2023的博文

Power mining cars and heavy vehicles using cables

 Mining car meaning: a type of carriage that is loaded at the point of production and hauled by locomotive or other power to the bottom of the pit or to the surface by train. They vary in capacity and are either of wooden or steel construction or a combination of both. Transporting heavy cargo prevails, and while producing the vehicle, fine and standard is required for the connecting equipment part. Safe passage of the vehicle inspection report. These vehicles, often called Mine-Spec vehicles, must meet specifications tailored to the safety and optional equipment requirements of each mine. Meaning of Heavy Duty Vehicles: Heavy duty trucks are large vehicles used to transport heavy loads. The drivers of these vehicles must be specially trained and licensed. You need a special license to drive a heavy truck. A heavy truck is a truck that exceeds the maximum allowable weight of 7.5 tons. Examples: passenger buses, carriers, livestock and other farm vehicles. Mobile cranes and other sp...

The operation mode of new energy electric vehicle charging base

 With the successive development of new energy electric vehicles, there are a number of automobile manufacturers who operate the state of electric vehicle industry products, for example, charging pile construction, charging station operation and other models. The following describes several cases of global operation models: 1: Asset-light operation and automaker-led United States: The main body of charging pile operation mainly includes professional charging facility operators and vehicle enterprises represented by Tesla. Meanwhile, car companies choose to cooperate with professional operators when building private charging piles. 2: Dominated by energy and vehicle enterprises Europe: Charging facilities are operated by a wide variety of subjects. Charging operating enterprises mainly include traditional energy enterprises, car enterprises and electric power companies, etc. They are generally well-financed and operate charging business through self-operation or investment in establ...

Introduction to the fundamentals of new energy electric vehicle operation

  Basic components of a pure electric vehicle Electric motor: The power device of electric vehicle, which is an electromagnetic device to realize electric energy conversion based on the principle of electromagnetic induction, and is represented by the letter M in the circuit. Its main function is to generate rotational motion and serve as a power source for electric equipment or various machinery. Generator: The main role is to convert mechanical energy into electrical energy, it is represented by the letter G in the circuit. Cooling system: It usually consists of radiator, water pump, fan, thermostat, coolant temperature gauge and water drain switch. Electric vehicle engine adopts two cooling methods, namely air cooling and water cooling, and usually electric vehicle engine mostly adopts water cooling. Transmission system: pure electric car chassis, because its electric motor has good traction characteristics, so the battery car transmission system does not need clutch and transmi...

The difference between standard copper row and high voltage cable

 The difference is as follows: (a) In terms of current carrying capacity, wire and cable are for carrying small currents, busbars are for carrying large currents; from the structural form, wire and cable is flexible (internal copper core external insulation layer) can be bent, bus bar is rigid (internal rigid copper row external steel or aluminum alloy shell) can not be bent, the need for specially made bend through; From the point of view of the use of characteristics, the installation of wire and cable production trouble, each power equipment need to be independently wired, while the bus bar is easy to install flexible, not easy to install errors, a bus bar can be used for many points of equipment at the same time with electricity. The principle is the same, copper row because of a single flow area is larger so dynamic stability and thermal stability are better than the cable, so the high current load or power supply is generally connected with closed busbar, but because the copp...

The difference between standard YJV and RVV cables

 Operating voltage is not the same: 1, RVV full name copper core polyvinyl chloride insulation PVC sheath flexible cable, rated voltage 300/500V. 2, YJV full name copper core cross-linked polyethylene insulation PVC sheath wire and cable, rated voltage low voltage 0.6/1kV, high voltage 6/10KV to 26/35kV. YJV and RVV cable wire commodity name is not the same, the meaning of the representative is not the same, YJV insulation with cross-linked polyethylene, RVV insulation with polyvinyl chloride. Production equipment and processing technology in the manufacture of manufacturing is also different 1, RVV for plastic force cable, YJV that is cross-linked cable, the insulation layer characteristics better than plastic force cable; YJV only in the insulation of raw materials dry chemical cross-linking solution to enhance the high temperature resistance, while RVV no. 2, YJ on behalf of cross-linked polyethylene, this is the type of cable line insulation. 3, V stands for polyvinyl chloride ...

Providing you with electric vehicle charging effect

 For electric vehicles at this stage, increasing the range and making long-distance electric vehicles is the main development path. When the battery cost is reduced and the cumulative range reaches 500-600 km, the main conflict of electric vehicles will change from mileage anxiety to charging anxiety. Improving the charging power of electric vehicles mainly includes several core elements. We can only go two ways: In our practical design considerations, the temperature of the entire connection point needs to be kept below 100 degrees. The main reason for this is that exceeding a temperature will make the corrosion resistant coating of the conductor unstable. Temperature rise problems similar to those caused by the contact and crimp resistance of the charging cable and connector below can occur inside the battery as we described above. If they occur at the battery connections, they can have a significant impact on the battery. First path variation: Because under this path we can also...

Standard types of charging cables for domestic or commercial electric vehicles

Nowadays, the electric vehicle field is trying to reduce the charging time and improve the charging efficiency. This is a physics lesson that applies the knowledge learned to the real world. It can improve people's new views on electric vehicles and have a higher understanding of the charging field. Charging pile can be divided into single-phase and three-phase. Regardless of two-phase or single-phase, the current of AC incoming line shall be converted first, such as: For single-phase charging pile (AC charging pile) I=P/U ; For three-phase charging pile (DC charging pile), I=P/(U * 1.732) ; After the current is calculated in this way, select the cable according to the current size. Relevant manuals or procedures can be selected by cables, such as: The single-phase charging pile is generally 7KW (AC charging pile), I=P/U=7000/220=32A, and 4 mm2 copper core cable shall be used; Three phase charging pile (DC pile): 15KW current 23A cable 4mm2 30KW current 46A cable 10mm2 60KW current...