Question 1: What does crew mean? Crew refers to the crew of a civil aircraft, consisting of the captain and other members of the crew.
Question 2: What does KW generator mean? In other words, how many kilowatts of energy can this generator produce. The number in front of KW corresponds to the number of kilowatts.
Question 3: What does installed capacity mean? Installed capacity refers to the rated active power of the generator actually installed in the system. The installed capacity is 2*150,000 kilowatts, or two production units of 150,000 kilowatts. The power generation capacity of each unit per hour is 150,000 kilowatts
Question 4: What does a 1.5 MW generator mean? 1 MW (megawatt) = 1,000,000 W (watt). The watt is the unit of power. Power refers to the work done per unit of time. A watt can be understood as pullingan object with a force of 1 N to produce a displacement of 1 meter per second.
Question 5: What does abp mean in the generator The law of conservation of energy! Energy does not innovate! It just moves from one form to another! A 500W inverter can drive a 300W motor, but a 300W motor cannot drive a 2500W generator! There are also savings in the middle! So this cannot be done! .
Question 6: What does a 600 MW generator mean? One megawatt is equivalent to 1000 kW
Question 7: The power of the generator What does factor mean and what does it represent? 40 points Generators rely on electromagnetic conversion to produce electricity. Part of the reactive power is used to generate magnetic fields and perform electromagnetic conversion. The other part of the active power is supplied to the usersurs. power factor
There are three types of power, active power P, reactive power Q and apparent power S.
The cosine of the phase difference (Φ) between voltage and current is called power factor, represented by the symbol cosΦ. Numerically, the power factor is the ratio between active power and apparent power, i.e. cosΦ=. P/ S
The three types of power and power factor cosΦ are a triangular right angle power relationship: the two rectangle sides are the active power and the reactive power, and the hypotenuse is the apparent power.
Active power squared + reactive power squared = apparent power squared.
In a three-phase load, these three powers always exist at the same time at all times, and the power generated by the motor must include these three powers:
Apparent power S =1.732UI
Powerfulthis active P=1.732UIcosΦ (power to generate heat)
Reactive power Q=1.732UIsinΦ (power to establish a magnetic field to transport energy)
Factor of power cosΦ=P/S (active power/apparent power)
sinΦ=Q/S (reactive power/apparent power)
Question 8: Qu does it mean for a generator to run at full load? Operating at full load means operating at rated power. The definition of a generator's power rating refers to the power that can operate for a long time. So it can work for a long time at full charge. However, it is also worth paying attention to the terms of use. For example, if the ambient temperature is too high, long-term nominal operation of the generator may cause the temperature to rise too high. Temperature monitoring and alarm devicese should be added if necessary.
Optimum Load Factor: When the motor is operating at rated voltage, the optimum load factor is usually determined by the power factor and efficiency. The best motor load rate is when the motor is operating at or near the rated load.
The rated load of the motor is the rated power indicated on the nameplate and the load factor is the ratio of the actual load to the rated load.
During normal operation, the generator is not allowed to operate beyond the rated capacity for a long period of time. When the generator voltage is lower than the rated value, the stator current can be increased appropriately, but the stator current can be increased appropriately. The stator current should not exceed 5% of the rated value.
In the event of a short circuit fault in the system, operationstaggered operation of the generator, starting of a group of motors and forced excitation, etc., both the stator and the rotor of the generator may be overloaded for a short time. When an overload causes the generator stator and rotor current to significantly exceed the rated value, the winding temperature may exceed the allowable limit, which will cause the insulation to age too quickly and may even cause damage. mechanical damage. The higher the overload value and the longer the duration, the more serious the risks mentioned above. However, since the temperature of the generator at rated operating conditions is lower than the maximum allowable temperature of the insulating material used, there is some reserve margin for short-term overload operation.
Question 9: What does ATS mean in generator? ATS stands for ATS Dual Power Automatic Transfer Switch, which is the abbreviation of Automatic Transfer Switching Equipment. ATS is primarily used in emergency power systems to automatically switch load circuits from one power supply to another (emergency power supply) to ensure continuous and reliable operation of large loads. Therefore, ATS is often used in places with high energy consumption and its product reliability is particularly important. Once the conversion fails, it will result in one of two risks: short circuit between power supplies or power failure of large loads.
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. , fuel combustion ou atomic nuclei The energy produced by fission is converted into mechanical energy and transmitted to the generator, which is then converted into electrical energy. Generators are widely used in industrial and agricultural production, national defense, science and technology and daily life.
Generators come in many forms, but their working principleBoth are based on the law of electromagnetic induction and the law of electromagnetic force. Therefore, the general principle of its construction is: using suitable magnetic and conductive materials to form magnetic circuits and circuits that conduct electromagnetic induction among themselves to generate electromagnetic energy and achieve the conversion goal of energy.
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Generators are divided into: direct current generators and alternating current generators
AC generators are divided into: synchronous generators and asynchronous generators (rarely adopted);
Alternators can also be divided into single-phase generators and three-phase generators.
There are many types of generators. In principle, they are divided into synchronous generators, asynchronous generators, single-phase generators and three-phase generators. In terms of generation method, they are divided into steam turbine generators, hydraulic generators, diesel generators, gasoline generators, etc. In terms of energy, it is divided into thermal generators, hydraulic generators, etc.
Question 10: What do D and B mean on the generator? D and B represent D+ and B+.
D+ represents the excitation line. The generator has self-excitation and separate excitation, that is, when the battery voltage is insufficient, the battery will power the excitation coil.Generate an excitation current.
B+ represents the line used by the generator to charge the battery.