Study of the 1500VA 3-phase transformer
An autotransformer enables the voltage at the primary to be varied.
Separate windings allow for practical work with no load, in short-circuit, and loaded with different Star or Delta couplings.
Educational objectives
• Study of a 3-phase transformer with no load, in short-circuit and loaded
• Creation of Star / Delta wiring according to the primary/secondary voltages selected
• Electrical measurements of the different values
• Calculation of the powers with the method of the 2 wattmeters
COMPOSITION OF THE MOBILE CABINET ON WHEELS
• Emergency stop, main switch, 'On' indicator light
• Primary and secondary electrical protection
• Variable three-phase autotransformer
• 1500VA three-phase transformer
Primary 3 x 230V / Secondary 3 x 230V separate windings
• 4 digital multi-displays (2 at primary and 2 at secondary) showing the active power, voltage, current and cosϕ
• 4mm safety terminals including 3 at secondary for connecting a load
• HYPRA plug with 3-m lead for linking to the three-phase network
• Dimensions: 710 x 600 x 375mm - Weight: 72 kg
• Supply voltage: 3 x 400V-AC 50Hz + N +E
An autotransformer enables the voltage at the primary to be varied.
Separate windings allow for practical work with no load, in short-circuit, and loaded with different Star or Delta couplings.
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