Starlight generator

Fault diagnosis and troubleshooting method Generator overheating (1) The generator does not operate in accordance with the specified technical conditions, such as too high stator voltage, iron loss increases; if the load current is too large, the copper loss of the stator winding increases; if the frequency is too low, the cooling fan speed becomes slow, affecting the heat dissipation of generator; the power factor is too low, so that the rotor excitation current increases, resulting in the rotor heating. Check whether the indication of monitoring instrument is normal. If it is abnormal, necessary adjustment and treatment must be carried out to operate the generator in accordance with the specified technical conditions. (2) The three-phase load current of the generator is unbalanced, and the overloaded one-phase winding will overheat; if the difference of three-phase current exceeds 10% of the rated current, it is a serious phase current imbalance, and the thre

I Reasonable process and technology The reasonable selection of repair technology is an important problem in the maintenance of diesel generator sets, especially when there are many kinds of damage forms for one part or several repair processes can be used for one damage form. It is more necessary to select the best repair technology of diesel generator set . 1. Working conditions The repair process should be different for load, speed, temperature, lubrication, fit, medium between working surfaces, etc. For example, the crack between the cylinder valve ports is generally bonded; the crack between the rear axle and the gearbox housing and the bearing housing hole cannot be repaired by bonding. The crack between the cylinder head valve door is not repaired by the general bonding method because of the high working temperature, but it needs to be combined with the inorganic bonding agent by the planting wire and the perforation, or repaired by the welding