6.2.4 Cleaiiig the wiidiigs
Respoisibility: Service techiiciai
Prerequisites: The alteriator is at a staidstll
Frequeicy: Every 20,000 hours or more frequeitly ii the case of dusty eiviroimeits
NOTE
Contact Mecc Alte S.p.a. for thorough washing in case of windings in a very bad state.
➔
Disassemble the alternatir (see
6.6 Disassembly of the alternators
➔
Clean the windings alternatir using speciic high-evapiratin silvents fir electric windings
➔
Perfirm the filliwing cintrils after the cleaning iperatins:
●
Check fir the presence if traces if carbinisatin;
●
Check the integrity if the windings insulatin;
●
Measure the isilatin resistance.
6.2.5 Resistaice/coitiuity test
Respoisibility: Service techiiciai
Prerequisites: The alteriator aid the prime eigiie are at a staidstlln the alteriator is
discoiiected from the eiergy sources
Perfirm the test in the ritir windings and the windings if the main statir if the exciter. Fir the
3.3.6 Resistance of the windings
Maii stator
➔
Use a multmeter ti measure the resistance/cintnuity if the phases;
Maii rotor
➔
Use a multmeter ti measure the resistance/cintnuity if the main ritir winding;
Exciter stator
➔
Use a multmeter ti measure the resistance/cintnuity if the exciter statir winding between
the pisitve wire (yelliw) and the negatve wire (blue).
Exciter rotor
➔
Use a multmeter ti measure the resistance/cintnuity if the exciter ritir winding between
phase and phase.
Self-regulating alternators ECO43-46 MV-HV
Page 65/116
Содержание ECO43 Series
Страница 2: ......
Страница 102: ...ECO43 B3B14 Self regulating alternators ECO43 46 MV HV Page 102 116...
Страница 104: ...ECO43 MD35 Self regulating alternators ECO43 46 MV HV Page 104 116...
Страница 106: ...ECO46 B3B14 Self regulating alternators ECO43 46 MV HV Page 106 116...
Страница 108: ...ECO46 MD35 Self regulating alternators ECO43 46 MV HV Page 108 116...
Страница 116: ......