1. Principle of Diesel Generator: Diesel engine drives the generator to operate and convert diesel energy into electrical energy.
In the cylinder of the diesel engine, the clean air filtered by the air filter is fully mixed with the high pressure atomized diesel fuel injected by the injector. Under the upward pressure of the piston, the volume decreases and the volume decreases. the temperature rises rapidly, reaching the ignition point of diesel. Diesel ignites, the gas mixture burns violently, rapidly expands in volume and pushes the piston down, which is called "work".
2. Gasoline Generator: The gasoline engine runs the generator, converting gasoline energy into electrical energy.
In the cylinder of the gasoline engine, the mixed gas burns violently, expands rapidly in volume, and pushes the piston down to do work. Whether it is a diesel generator or an gasoline generator, each cylinder performs work in a certain order. The thrust acting on the piston becomes the force that causes the crankshaft to rotate through the connecting rod, thereby causing the crankshaft to rotate.
Detailed information:
1. Functional Characteristics of DC Generators
DC generators are easy to use and reliable. They can directly supply DC generators for various needs. . Electrical equipment in the power supply provides electrical energy. However, there is a collector inside the DC generator, which is prone to sparking and has low power generation efficiency. DC generators can generally be used as DC power sources required for DC motors, electrolysis, electroplating, alternator charging and excitation, etc.
2. Cfunctional characteristics of the alternator
The alternator refers to a generator that generates alternating current under the action of an external mechanical force. This type of generator can be divided into synchronous alternator and asynchronous alternators. .
Synchronous generators are the most common among alternators. This type of generator is excited by direct current and can provide both active and reactive power. It can be used to power various loads requiring alternative power. is powered. Additionally, synchronous generators can be divided into four types according to the different engines used: steam turbine generators, hydraulic generators, diesel generators and wind generators.
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Working principle of car generator
One end of the generator shaft is grounded and the other end is isolated from the bearing base. Nothing. is allowed on the tree. The second form point is grounded!
Due to poor sealing of the coaxial turbine shaft in the generator, high-speed steam leakage along the shaft, or high-speed steam injection speed in the cylinder, the shaft is loaded. sometimes very high. It is numb to the touch, but it does not transmit easily to the exciter side and can also damage the oil film and bearings on the turbine side., usually a grounded carbon brush is connected to the turbine shaft to remove it.
When excess shaft tension is sufficient to break the oil film between the shaft and bearing, discharge occurs and the discharge circuit occurs. is the generator shaft-- -----Journal------Bearing rod-----Bracketbearing-----Unit base Although the shaft voltage is not high, generally 4V→6V for 50∽. 300 MW, the loop resistance is very low, therefore the generated shaft current can be very large, sometimes reaching hundreds of amps. Shaft current will gradually deteriorate the quality of lubricating and cooling oil. In severe cases, the bearing cushion will be damaged. burned out, forcing the machine to stop and causing an accident. Therefore, during installation and operation, measure and check the voltage between the generator set shaft and bearing.
By measuring and comparing voltage. At both ends of the generator and the voltage between the bearing and the base, check and determine the quality of the insulation between the generator bearing support and the base to ensure that the unit operates safely.
Usually an insulating pad is installed.installed between the bearing bracket and the base at the excitation end of the generator, and all oil pipes, screws, screws, etc. are isolated
< p>A car generator is a built-in alternator, and its. The working principle is:
Car generators are mainly silicon rectifier generators, mainly composed of three-phase alternator and silicon diode rectifier.
Working principle: When direct current flows through the rotor winding, the rotor claw poles establish a magnetic field. When the rotor rotates, the magnetic lines of the magnetic pole cut the stator winding and the induced alternating electromotive force. the armature coil is reversed by switching. The device cooperates with the switching effect of the brush, so that it becomes a DC electromotive force when exited from the end of the brush.
As long as the generator is normal andundamaged, the rotor can spin to produce electricity, but the electricity generated is not stored in the battery! The magnetic lines of force in the generator are generated by magnets!
The automobile generator is the main source of power for the car. Its function is to power all electrical equipment (except the starter) when the engine is running normally (above idle speed) and to charge the battery. at the same time.
Generators are mechanical devices that convert other forms of energy into electrical energy. They are driven by water turbines, steam turbines, diesel engines or other electrical machines to convert water flow, air flow. , combustion of fuel or atomic nuclei. The energy generated by fission is converted into mechanical energy and transmitted to the generator, which is then converted into electricity.
The difference between generators mainly lies in two points:
The difference in electricity generation methods
< p>The difference in the principle and structure of the energy production of the generatorThe generator is as follows: