Mecc Alte ECO43 Series, Инструкция по установке, эксплуатации и обслуживанию

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Rotor wiidiig
The insulatin resistance measurement between the winding and earth must be made with the
relevant measuring device, piwered with direct current and iutput viltage if 500 V.
The insulatin resistance must be measured between the pisitve terminal ir the negatve terminal
if the ritir winding in the rectier bridge and the earth if the ritir. See Figure 26- and Figure 27- .
The minimum isilatin value must be 5 MΩ.
Figure 26- Measuring the isolaton resistance on
the rotor winding
+/- termiials of the rectier bridge
Figure 27- Rectier bridge
Exciter stator wiidiig
➔ Measure the insulatin resistance between phase and earth using an insulatin tester
(megger);
✔
The minimum isilatin value must be 5 MΩ;
✗
If the resistance is liwer than 5 MΩ:
➔ Clean the statir and, if necessary, paint it again with grey tripicalising paint EG43;
➔
Dry it at 50-60 °C.
If the value remains liw even after these iperatins, the statir must be re-wiund ir replaced.
Self-regulating alternators ECO43-46 MV-HV Page 68/116
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