Recently asked questions in Kochi mmd and Class 2 Numerical solutions

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26 September 2018

5.No voltage building up in the generator

September 26, 2018 Posted by AK No comments
       1.Volt meter fault  
2.    2.Exciter fail  
3.Loss of residual magnetism. – for recovering residual magnetism we need to connect a 12V  battery to the exciter or pilot exciter. If connecting to the exciter connect  +VE to F1 and –VE to F2. Hold the F2 lead by the insulated portion of the lead wire, touch F2 to the negative pole of the battery for about 5 to 10 seconds, then remove. If connecting to pilot exciter connect +VE to J and –VE to K. This process is called FLASHING. Make sure that AVR is blocked with diodes or isolated.

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