SEL-2 Simulator Of A Power Transmission Line Didactic Equipment Electrical Engineering Lab Equipment
The simulator reproduces a 130-km long power transmission line of 77 kV. TECHNICAL CHARACTERISTICS: • Desk-type box of chemically treated sheet steel, paintedwith epoxy coats. • Side handles for easy transport. • Fore panel of insulating material, with screen silk printeddiagram of the components. • All safety terminals ø 4 mm. The simulator operates with Un: 3 x 220 V and it reproducesa 130-km long power transmission line of 77 kV, with thefollowing characteristics: • Rated voltage: 77 kV • Rated current: 100 A • Rated power: 13 MW • Equivalent resistance: 3.5 Ω • Concentrated equivalent capacitance: 10 µF • Loop earth impedance: 0.8 Ω The transmission line is protected against overload andshort circuit by quick blow fuses. COMPONENTS INSTALLEDON THE PANEL: • Model of line: concentrated parameters, PI cell • Simulated Un: 77 kV • Operating Un: 3 x 220 V, 50 Hz • Simulated Pn: MVA • Simulated In: 100 A • Operating In: 0.5 A • Distributed equivalent R: 3 x 1.5 Ω or 3 x 23 Ω, selectable. • Distributed equivalent L: 3 x 10 mH or 180 mH, selectable. • Capacitors of line start and end: 3 x 2 µF or 3 x 0.22 µF,selectable. They may be connected in star, delta confi guration,or earthed. • Earth loop impedance: 0.8 Ω selectable. • Three-pole switch of connection of the line. • Fuse-holder with fuses: 6 x 30 In: 1 A Possibility of using the line separately, or more lines series/parallel connected. Dimensions: 415 x 400 x 150 mm Net weight: 8 kg Supply with THEORETICAL – EXPERIMENTAL HANDBOOK