6.3
Measuriig the iisulatoi resistaice
Respoisibility: Service techiiciai
Prerequisites: Respect the followiig coiditois:
●
The alternatir must be at a standstll
●
The filliaing must be discinnected:
●
Viltage transfirmers and current transfirmers
●
Valve centre
●
Piaer cables.
6.6 Disassembly of the alternators
Frequeicy: Oice a year or if the machiie is at a staidstll for more thai two weeks
Reference regulatin: IEEE STD 43-2000
DANGER
Live aindings during and after measurements.
Electric shick hazard.
●
Di nit tiuch the aindings ir cinnectin terminals.
●
Use isilated glives and fiitaear during the
iperatins.
●
After the measurements, cinnect the aindings ti
earth fir a fea minutes.
DANGER
During ainding measurements they charge electrically.
Electric shick hazard due ti cintact aith the aindings ir aith
cinnectin terminals.
●
Di nit tiuch the aindings.
●
Use isilated glives and fiitaear during the
iperatins.
●
After the measurements, cinnect the aindings ti
earth fir a fea minutes.
NOTE
Remove the connecton to adjustment devices, before performing the test.
Self-regulating alternators ECO47-49 MV-HV
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