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As an emergency backup power supply, the diesel generator set does not generate electricity, which is to go to its role. During the use of diesel generator sets, there may be a situation that the machine starts but does not generate electricity, and the reasons are as follows, for reference only. When actually using the 200kw Perkins generator set, if you encounter such a situation and cannot solve it by yourself, you must find professional and technical personnel.
1. The control screen indicates that the voltmeter is bad; Control screen"Auto-manual-demagnetization"The switch is in the demagnetization position (fully automatic genset function).
2. Wrong wiring; No remanence or too low remanence.
3. Poor contact between the carbon brush and the collector ring or insufficient pressure of the carbon brush spring (three-wave brushed motor); The carbon brush grip rusts or the toner gets stuck on the carbon brush, so that the carbon brush cannot move up and down (three-wave brushed motor).
4. The rectifier on the excitation rectifier plate has two tubes open circuit or freewheeling diode short circuit (three-wave brushed motor); The rotary rectifier module is damaged.
5. The winding of the diesel generator or the excitation winding is broken or the contact is poor.
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Reasons why Perkins diesel generators do not generate electricity:
1) The remanence is often lost after shutdown, because the material used for the magnetic pole of the exciter is close to mild steel, and the remanence is small, and the magnetic field disappears when there is no current in the excitation winding after the shutdown.
2) The magnetic poles of the generator lose their magnetism.
3) The excitation circuit components are damaged or the line is open-circuited, short-circuited or grounded.
4) The exciter brush has poor contact with the commutator or the brush holder pressure is insufficient.
5) The excitation winding is wired incorrectly, and the polarity is opposite.
6) The contact between the generator brush and the slip ring is poor, or the brush pressure is insufficient.
7) The generator stator winding or rotor winding is broken.
8) The generator lead wire is loose or the switch is in poor contact.
9) Fuse blowing.
Big Deal Method:
1) Always have a battery and magnetize it before generating electricity.
2) Direct current (for a short time) larger than the rated current is introduced into the winding for magnetization, and the specific current is determined by the test.
3) Replace the damaged components and repair the faulty lines.
4) Remove the sharp dirt from the contact surface, adjust the brush pressure, and tighten the brush holder.
5) Correct the wiring and press the exact polarity to magnetize.
6) Remove the dirt on the contact surface, grind the brush, adjust the pressure of the brush, and make the brush and the slip ring in close contact.
7) Inspect and repair the circuit breakers.
8) Connect the joint or repair the contact part of the switch.
9) Find out the cause of the fuse, and replace the specified fuse after determining that the generator itself and the circuit are normal.
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1. There is water in the fuel, which is not easy to catch fire;
2. When air enters the generator oil supply system and the plunger of the high-pressure oil pump rises, the air can only be compressed to reduce the oil pressure and reduce the oil supply or not to supply oil. (For reference only: Fujian Yanan Motor A).
3. There is no oil in the fuel tank or the fuel valve is not opened;
4. The oil circuit of the fuel system is blocked, and the oil cannot be injected;
5. The temperature in the combustion chamber and cylinder is too low, the fuel is not easy to atomize, and the thick mixed gas formed by too much fuel is not easy to ignite and burn, so it is not easy to start.
6. The injection quality of the generator fuel injector is poor, so that the fuel atomization is not good, and it is not easy to form a combustible mixture.
7. The oil supply of the high-pressure oil pump is insufficient, and the oil supply pressure is too high or too low.
8. The engine injection time is too early or too late.
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Perkins generator set is a kind of power generation equipment, which refers to the power machinery that uses diesel fuel as fuel and diesel-brigade oil engine as the original circle number motor to drive the generator to generate electricity.
It is widely used in mines, railways, field sites, road traffic maintenance, as well as factories, enterprises and other departments, as a backup power supply to dismantle the cavity silver or temporary power supply.
How much power is needed and what configuration of Perkins generator set, users can choose according to their specific work needs!
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