Its accuracy can not be affected by coupled inductance , fault resistance , distributed capacitance and asynchronous angle
2.
This algorithm can be executed independently of the source impedance and fault resistance with an error less than 0 . 5 percent
3.
The tests show that the neural network impedance relay has good function to anti fault resistance and adaptability to variation of system condition
4.
In order to deal with oscillation and fault resistance , the paper presents a new method of adaptive distance relay protection based the above relay protection
5.
Because conventional single - terminal method of fault location ca n ' t eliminate the influence of fault resistance and the remote in - feed , its utility is limited
6.
Only using data of single - terminal , the algorithm can eliminate the influences of the fault resistances and it need n ' t resolve the complicated equation of long line
7.
The influences of several factors such as harmonics , intermittent arc grounding , ct , load and fault resistance have been thoroughly analyzed , therefore , it is fundamental work for its application
8.
The good astringency has been proved within the whole line length in principle . this algorithm does n ' t need to choose the true from all the roots , and does n ' t need synchronized data and can eliminate the influence of the fault resistances
9.
Because affected by the type of lines , fault resistance and two sides systems �� fault analytical location has lower precision , but it has no dead line and is more better accurate if the fault location is close to the line terminal
10.
This paper discusses and analyses several principal points affecting the performance of regular distance protection , such as the fault resistance , the branch current , the zero sequence mutual coupling and so on . then some concrete application of adaptive concept to distance protection will be analyzed and studied
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