Power Engineering Laboratory
A tantárgy neve magyarul / Name of the subject in Hungarian: Villamos energetika laboratórium
Last updated: 2015. november 2.
A fenti forma a Neptun sajátja, ezen technikai okokból nem változtattunk.
A kötelező előtanulmányi rend az adott szak honlapján és képzési programjában található.
I. Design practice and software tools in Power System Transmission and Distribution 1. Load profile and voltage distribution analysis in a low voltage grid. Fault current calculation and selection criteria for fuse rating. 2. Analysing the load and control characteristic of a high/medium voltage (120/20 kV) transformer substation. Controlling the power factor and voltage quality by means of shunt capacitors. 3. Deriving zero sequence models of Y/y , D/y, D/z and Y/d transformers for non-symmetrical fault and serial failure analysis. 4. Fault current distribution on a 120 kV HV transmission line, analyzing the influence of grounding conditions and calculation of potential rise of faulted tower and earthing grid of nearby substations.
II. High voltage measurements
5. Ideal switch off in case of DC and AC faults. Application of concentrated parameter model to calculate transient recovery voltage (TRV) between the connectors of a switchgear. Effects of the network parameters on the TRV.
6. Examination of steady state arc and extinguishing DC arc. Measurement of voltage vs. current and voltage vs. arc length characteristics. Comparing meaurement results to the ones calculated from arc models. Examination of how network parameters and arc extinction devices influence the switch off process.
7. Examination of AC arcs, its properties and extinction. Examination of arc hysteresis and time functions of arcs in AC circuits at different phase shift. Examination of influence of switch on angle, phase shift and arc extinction devices on the switch off process.
8. Examination of fuses and miniature circuit breakers (MCB). Measurement of the switch off time vs. current characteristics of fuse models and an MCB.
III. Electrical machines
9. Power engineering measuring technique
10. 3 phase transformer
11. Induction machine
12. DC machine
13. Synchronous machines
Laboratory measurement are 3 hours long 12 times in the semester, with one opportunity for supplement measurement.
Maximum two opportunities are provided in one semester for supplement failed measurements (typically the last week before the end of semester).
Consultation time is available on-demand after preliminary agreement.