SEL-1 Power Transmission Lines Trainer Vocational Training Equipment Electrical Engineering Lab Equipment
The equipment reproduces two high voltage transmission lines with the possibility of varying the parameters. It enables to learn and test the characteristics and management of high voltage distribution networks, with small scale components. TRAINING PROGRAM: Training refers to the study of power transmission in mediumvoltage high-voltage networks and to the study of three-phasetransformers. Main subjects dealt with: • Models of power transmission lines with concentratedparameters • Voltage drop and losses in power transmission lines • Types of line (copper, aluminium) • Parallel of power transmission lines • Ideal transformer, real transformer • No load, load and short-circuit tests of transformers,effi ciency of a three-phase transformer • Star, delta, zigzag connections and time index of three-phasetransformers • Protection devices of transformers TECHNICAL CHARACTERISTICS: SIMULATOR OF POWERTRANSMISSION LINESMod. SEL-1 Framework is made of chemically treated sheet steel, paintedwith many epoxy coats; the base is provided with rubberfeet and it may be positioned on any working top. Lines are protected against overload and short circuit by quick blowfuses. Main installed components: Line 1 Modifi able parameter: Section (capacity in A) Model of line used: PI Simulated Un: 120 kV, operating Un 400V Simulated Pn: 10 -15 - 20 MVA Operating In: 1 A Equivalent distributed R: 18 - 25 - 35 Ω Distributed inductance and capacitance equivalent to: 72 mH, 0.2 µF Breakers of line start and end Line 2 Modifi able parameter: length (km) Model of line used: PI Simulated Un: 120 kV, operating Un 400V Simulated Pn: 20 MVA Operating In: 1 A Equivalent distributed R: 8.9 - 18 - 35 Ω Distributed inductance equivalent to: 144 - 72 - 36 mH Distributed capacitance equivalent to 0.1 - 0.2 - 0.4 µF Breakers of line start and end Possibility of using lines separately or in series/parallelconnection. Dimensions: 840 x 450 x 680 mm Net weight: 35 kg Supply with THEORETICAL – EXPERIMENTAL HANDBOOK
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