This paper includes was clarified the objectives of this study and
the problems caused by gas hydrate formation problem in the
studied gas transportation lines, and submit of the studied fields,
contains all the required data in this research.
This research was prepared in order to study the effect on the 66 kV power network
in Lattakia province as a result of replace some of the traditional transmission lines in this
network of the type Compact Lines , from only technically, any of the
terms of the impact
on the load flow in transmission lines, in a stable working system (natural), due to the
impossibility of conducting this study on the ground a program was created allows the user
to simulate various types of electrical networks radial and simple or complex loop , and the
analysis of the technical performance of different cases of transmission lines (traditional
and compact) and compare the results for both cases in normal working system.
This research present broadband over power lines (BPL) technology as an effective option for Syrian Arab republic since this technology basically based on existing network which supply the electricity to the public use.
This paper shows a new approach to determine the presence of defects and to classify the defect type online based on Artificial Neural Networks (ANNs) in electrical power system transmission lines. This algorithm uses current and voltage signals samp
led at 1
KHz as an input for the proposed ANNs without the involvement of a moving data window, so input data will be processed as a string of data. The model depends on three neural networks one for each phase and another fourth neural network for the involvement of the ground during the fault. Response time of the classifier is less than 5 ms. Moreover modern power system requires a fast, robust and accurate technique for online processing.
Simulation studies show that the proposed technique is able to distinguish the fault type very accurate. Also this technique succeeded in determining of all defect types under all system conditions, so it is 100 percent accurate, so it is suitable for online application.
The equation of towers height calculation carryingpower transmission lines at their
intersection with engineering installation is one of the methods of designing power nets,the
solution of which depends on the traditional method for calculating con
ductors
coordinates. Sometimes this problem becomes so complicated or impossible to solve,
therefore, we have to use the space solution mainly when the wind direction made an angle
with these transmission lines and the points of hanging height difference. In this case it is
better to use the vector method which we used at the present work. We used a
mathematical model to calculate the minimum point coordination of the transmission lines
curves and the minimum distance between the engineering installation and that of these
transmission lines, and the suitable carrying towers heights, a cording to the permissible
electrical equipment laws. So we could find the suitable towers height coordinates by using
the C++ applicable program.
Calculation errors between traditional and vector method reaches high value which
increases with the slope angle increasing of conductors.