Omicron CP TD1 Reference Manual

CP TD1 Reference Manual V 1.44
144
12.8 DF Limits of Bushings (C)
Manufacturer:
Description
Bushing
Type or Class
Power Factor Limits
(% at 20°C)
Typical Doubtful or
questionable
ASEA Brown Boveri (ABB) O+C
T
0.5
0.5
Double name-
plate
Note: 1. Contact manufacturer if capacitance increases to 110% of original installed value
2. Reference ABB instruction leaflet 44-666E dated July 1, 1990.
ASEA
Less than 800kV
800kV
GOA 250
GOB
GOBK
GOC
GOE
GOE
GOEK
GOEL
GOF
GOFL
GOG
GOH
GOM
GOA other
0.5
0.5
0.5
0.4
0.45
0.4
0.4
0.4
0.45
0.4
0.45
0.25
0.45
0.45
0.7
0.7
0.7
0.6
0.65
0.6
0.6
0.6
0.65
0.6
0.65
0.45
0.65
0.65
Note: 1. Up to 3% change from nameplate capacitance is considered acceptable
2. Remove from service if the difference between nameplate and measured C
1
percent
power factor exceeds 75%
3. Reference ABB Components bulletin #2750 515E-56, dated 1990.
Bushing Company (Reyrolle
Limited)
Includes:
Micanite & Insulators (M&I)
English Electric
Ferranti
OTA 0.35 0.6
Note: Reference Bushing Company fax dated 9/1/1993

Omicron CP TD1 Specifications

General

Brand	Omicron
Model	CP TD1
Category	Measuring Instruments
Language	English