Bushing Insulation - GE Intellix BMT 330 User Manual

Intellix BMT 330 User Manual
™

Bushing Insulation

Enter settings for Primary bushings:
Parameter
Period to calculate PF% trend
Period to calculate C1% trend
PF% Polar plot level warning
PF% Polar plot level alarm
Phase angle warning
Phase angle alarm
3
Alarm limits and settings must be revised few weeks after installation by customer depending
on bushing behaviour.
4
Value of zero disables this particular alarm.
Figure 15: Alarm > Bushing Insulation tab
Suggested Value for both Primary & Secondary
Default
168h
168h
150%
200%
0.5°
0.8°
BMT330UM v1.0
Allowable range
0 to 720 h
0 to 720 h
0 to 600%
0 to 600%
0 to 10°
0 to 10°
20-Jun-16
3
4
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