remote control equipment - Indian Railways Institute of Electrical ...
remote control equipment - Indian Railways Institute of Electrical ...
remote control equipment - Indian Railways Institute of Electrical ...
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TABLE V<br />
ROGER'S METHOD OF DIAGNOSIS BY HYDRO-CARBON GAS RATIOS<br />
Methane Ethane Ethylene Acetylene Diagnosis % <strong>of</strong> transformers<br />
Hydrogen Methane Ethane Ethylene<br />
Sampled<br />
0 0 0 0 If Methane/Hydrogen<br />
less than 0.1- partial discharge.<br />
2.0<br />
Normal deterioration<br />
1 1 0 0 Slight overheating beow 150°C<br />
1 1 0 0 Slight overheating 150°- 200°C<br />
0 1 0 0 Slight overheating: 200°- 300°C<br />
0 0 1 0 Normal conductor overheating<br />
1 0 0 1 Circulating Currents and / or<br />
Overheated joints<br />
0 0 0 1 Flashover without power<br />
Follow through<br />
0 1 0 1 Tap changer selector breaking<br />
Current.<br />
0 0 1 1 Arc with power follow<br />
Through or persistent arcing<br />
CH4<br />
C2H6<br />
C2H4<br />
C2H2<br />
H2<br />
– Methane<br />
– Ethane<br />
- Ethylene<br />
– Acetylene<br />
- Hydrogen<br />
62<br />
34.2<br />
11.8<br />
9.0<br />
7.8<br />
11.1<br />
9.0<br />
2.1<br />
1.1<br />
9.7
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