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Generator automatic voltage regulator AVR damaged?

2015-02-09 14:31      Click:

Now diesel generating set is basic configuration Generator automatic voltage regulator AVR, but sometimesGenerator automatic voltage regulator AVR Also fails, no electricity, someone new directly Generator AVR To replace the old ways to solve the AVR.When the user to do this, to find new AVR not work in a few minutes, and then complain about the quality of the AVR is bad.Other AVR damage analysis solution by the following reasons.


1, AVR by the main loop of the rectifier circuit, voltage detection circuit, compare the control circuit of three parts;

2, eliminate the original electrical components itself on the quality of the possibility of damage, the cause of the whole piece of AVR circuit, control circuit of main circuit and compare work frequency change;

3, one of the main circuit, rectifier bridge and change more frequency comparison circuit of transistor, the damage rate accounts for more than 90% of the whole piece of AVR damage rate;Given on imported generator AVR belongs to the repairing and accessories, should change new damaged, so, we analysis the main causes of AVR damage on 4, generators, as far as possible to avoid the damage of the AVR is one of the most important, as long as using appropriate, can improve the service life of AVR.The greater the stability of the generator voltage, frequency, the smaller the change of inside AVR;

5, the smaller the comparison circuit of the transistor switch action, AVR damage probability is smaller;Within the output load is relatively stable, AVR, the smaller the change of frequency, the smaller the comparison circuit of the transistor switch action, AVR damage probability is smaller;

6, the more stable the rotational speed of diesel engine, the smaller the change current on the oscillation of the AVR;Regular "block" and "super load, three-phase load is a huge difference between the main cause of the damage of AVR;Choosing with E, F, C the fuel system of generating set, because of the frequency change is small, the use of AVR is more reliable.


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