Omicron CP TD1 Reference Manual

CP TD1 Reference Manual V 1.44
66
Legend:
Major gases
Minor gases
1)
ppm = parts per million by volume (gas/liquid)
2)
Previous limits for CO were 500 and 700 ppm
3)
Previous limits for CO
2
were 2000 and 10000 ppm
Behind the absolute value of gas content are the quotients of the gas
components, which also allow for additional information (Table 6-1) [3.2].
Table 6-1 Dissolved Gas Analysis [3.2]
Type of fault
PD Partial discharge < 0.01 < 0.1 < 0.2
D1 Discharge with low energy > 1 0.1 - 0.5 > 1
D2 Discharge with high energy 0.6 - 2.5 0.1 - 1 > 2
T1 Thermal fault T < 300°C < 0.01 > 1 < 1
T2 Thermal fault T < 700°C < 0.1 > 1 1 - 4
T3 Thermal fault T > 700°C < 0.2 > 1 > 4
C
2
H
2
C
2
H
4
-------------
CH
4
H
2
-----------
C
2
H
4
C
2
H
6
-------------

Omicron CP TD1 Specifications

General

Brand	Omicron
Model	CP TD1
Category	Measuring Instruments
Language	English