| Title |
Automatinio kartotinio įjungimo tyrimas elektros skirstomojo tinklo mišriose oro ir kabelių linijose / |
| Translation of Title |
Automatic reclosing research of the electricity distribution network in mixed air and cable lines. |
| Authors |
Pratusevičius, Darius |
| Full Text |
|
| Pages |
54 |
| Keywords [eng] |
automatic reclosing ; the residual voltage ; joining angle of the phase ; the discharge time of the cable |
| Abstract [eng] |
The main purpose of the final master's project is to explore the usage capabilities of automatic reclosing in mixed air and cable network. The paper gives an overview of the electrical parameters of cables, electromagnetic wave propagation and distribution of induced surge. The calculated critical residual voltage performed cable insulation piercing probability analysis in the earth faulted line. Also, to analise cable residual charge discharges and made family of the curves of different simulated line capacitance and resistance. Chosen a particular 10 kV power line and to made discharge of residual charge family of curves with different insulation resistance. Automatic reclosing usage in mixed air and cable network was tested. For the test, it was used a current transformer 40.23 TPU. The analysis was performed by analyzing the oscilloscope‘s data from primary circuit terminals and the secondary circuit voltage indications during voltage discharge. This was done by feeding loaded capacitor‘s voltage into the primary circuit. To get more accurate results, analysis has been moved to the Matlab / Simulink environment. The study revealed the main problems of automatic reclosing usage in mixed air and cable network. Was made the family of curves, which can be used in the actual network. The proposed and investigated the usage of current transformer. |
| Dissertation Institution |
Kauno technologijos universitetas. |
| Type |
Master thesis |
| Language |
Lithuanian |
| Publication date |
2017 |
