1 Ship synchronous generator and pressure regulation system fault classification Mountain 1 step generator and voltage regulation system failure. In the end, it is enough to have the magnitude of the generator terminal voltage or not. To this end, we divide the fault to make the synchronous generator voltage deviate from the rated value into dynamic faults. The failure causes the synchronous generator voltage to deviate from the rated value to be relatively small, and is classified into a static fault.

Serial number dynamic fault serial number static fault generator can not establish voltage generator voltage drop generator voltage drop C20tp generator voltage rise 10 ㄇ generator does not suddenly generate electricity when sudden load, sudden voltage drop 2 synchronous generator fault analysis method In general, the common electrical part failure has a short circuit between the stator windings. Winding open circuit switching excitation coil 匝1 short circuit breaking and brush partial failure For short circuit fault, the disintegration can be seen with the naked eye; for the interturn short circuit, often accompanied by severe local heating of the organic shell, the phenomenon of phase voltage asymmetry It is not difficult to judge. When the rotor excitation coil is short-circuited between turns, the excitation current increases. Therefore, it is only necessary to detect the excitation current and exceed the normal value. It can be considered that there is a short circuit between the turns, and the disintegration can be found by the naked eye. Brushless synchronous generator. It comes with a pepper-type exciter and a rotating commutator, which has no brush part failure, and the fault of the turn, the flow and the exciter. This part of the faulty rotating commutator breaks down or breaks the armature winding and the exciting coil also has a short circuit breaking fault. Brushless machine has more relationship than brushed machine. It is more difficult to analyze the fault of the ordinary brush machine. Whether it is a dynamic fault or a static fault, it has been proved that the reason is not the pressure regulating system, for example, when replacing the voltage regulator. At this time, it is necessary to distinguish whether the fault is caused by the main generator or the exciter. First, check whether the rotating commutator has a heart piercing or open circuit fault. . If the rotating commutator does not have a breakdown or open circuit fault, the spectrum analyzer should be used to measure the harmonic component of the main generator terminal voltage. If the harmonic test is larger than the normal machine. The description is the excitation of the exciter, which detects the gripping characteristics of each rotating commutator, whether it is caused or not, and the short-circuit or open circuit of the fixed-rotor coil can be checked by the universal and short-circuit reconnaissance if the harmonic component does not change. The explanation is that the blue generator is faulty.

Fore boat. The synchronous hairpin used in the two types of storage brush 殍, 茗呗, 嗯, 漂惠 win leeks string, he can be a spider Yang 61 3 pressure regulation system failure analysis method whether it is dynamic failure or static failure, the reason Is the generator part or the voltage regulation system, the size and waveform of the magnetic current in the watershed. If the excitation current is in the position, and the generator voltage is not in the rated value, the fault is in the generator. If the excitation current is abnormal, the fault is caused by the voltage regulation system; if the excitation current waveform is distorted or the harmonic component is obvious, the fault is caused by the fault. Excitation system part. This kind of discrimination only needs to input the DC current detection current in the output of the excitation system, and observe the waveform with the wave device, so that the original flash can be found. Once confirmed, in the fault of the pressure regulating system, it is necessary to analyze the fault before the original type according to the type of the regulating system. The common voltage regulation system has two categories: thyristor regulator and controllable phase compound excitation regulator.

3.1 thyristor voltage regulator fault analysis, the general product of the voltage regulator mountain measurement comparison circuit phase shift trigger circuit thyristor main circuit voltage control circuit and de-excitation circuit. If a dynamic fault occurs, first check whether the main circuit of the thyristor is normal, and then check the april trigger circuit 6 to normally repair the electronic circuit. The most effective method is to detect each heart waveform to determine the cause of the fault. For the failure to establish a voltage fault, first magnetize, if the voltage can be established when magnetizing, and the voltage cannot be established without magnetization, the fault lies in the voltage control circuit or the de-excitation circuit. If magnetization is performed, the voltage failure cannot be established in the generator excitation circuit. The occurrence of a static fault is in the measurement comparison circuit or the phase shift control circuit.

In short, the sluice gate regulator occurs, and the reverse tune tracking method is adopted. 3.2 The controllable phase double-excitation voltage regulator fault analysis can control the phase-excitation voltage regulator mountain. Part 1 is phase and excitation. The other part is the Leica corrector. Since the phase excitation part is responsible for the dynamic characteristics of the voltage regulator, and the voltage corrector is responsible for the special state of the regulator, the dynamic fault main detection phase recombination part occurs. For example, if the load voltage drop is severe, the compensation of the current re-excitation component may be insufficient, or the voltage of the phase-resolving circuit broken arm may be 1; the accuracy of the section is up to +. At this time, the voltage corrector should be checked. The circuit of the voltage corrector is composed of a thyristor voltage regulator phase shift trigger circuit and a thyristor output circuit. The difference is the process of its seven. For the corrector =.

The current of the thyristor output circuit increases, so that the excitation current of the generator is reduced, so that the generator is reduced, and the voltage regulator is corrected from the final calibration. When the voltage regulator is used, the voltage regulator is used to reduce the output current of the thyristor output circuit. The small generator excitation current is finally adjusted to make the generator terminal voltage rated =, so to analyze the two circuit faults to seize this feature.

Yes, for the controllable phase compound excitation regulator system, the corresponding fault link can also be found according to the fault type.

4 Conclusions in summary. Failure analysis of the hair dryer and regulator system.

Firstly, according to the fault phenomenon, it is determined whether it is a dynamic fault or a static fault. Then, depending on the type of fault and the magnitude of the excitation current, it is possible to quickly distinguish the fault, which is especially important for ships sailing at sea. Shorten the repair time and improve the repair rate, which can greatly improve the effectiveness of the ship's power supply system.

This method has been demonstrated in the process of boarding the ship and repairing the ship. Due to the limited space, it is not an example.

I Xiao Leming, Cai Dajie. Brushless generator rotor fault simulation and trouble detection. China Ship Repair, 1997.3 2阮乃忠. Marine electrical equipment repair guide. Beijing People's Transportation published 3 Zhang Jun. Automatic excitation device for synchronous generators of ship power stations. Beijing National Defense Industry Press, 1989 Received 200104 Shipping Information China-South Korea shipping route passenger and freighter freight rates are inevitable. Experts believe that the decline in freight rates for passenger and freight carriers in China-South Korea shipping routes is inevitable.

After the establishment of diplomatic relations between China and South Korea. The maritime business between the two countries has developed rapidly. so far. China's Dandong Dalian Tianjin Yantai Weihai Qingdao and Shanghai Port and South Korea's Busan Port Rengang have opened regular passenger and cargo transportation routes. This year, the two countries will open two new passenger and cargo shipping routes from Lianyungang to South Korea's Mokpo Port and Shidao to South Korea's Pyeongtaek Port. route. There are overlapping phenomena in the passenger and cargo transportation lines that have been opened. Two new routes will be opened this year, so that the passenger and cargo transportation lines not only overlap, but also concentrated in the not too wide sea area from Tianjin Port to Lianyungang, which will inevitably cause Take on the fierce competition of these shipping companies.

At present, the China-Korea Passenger and Cargo Shipping Association has met to coordinate, and the two companies intend to take measures to solve this difficulty. Weihai to Ren route, it is planned to reduce the price per standard box by 50 US dollars twice during the year, but when it is not announced.

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