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PSL80 - Experiment

THREE PHASE MOBILE TRANSFORMER

PDF datasheet
Mobile 3 kVA transformer for experiments into a wide range of single-phase and three-phase power and distribution system transformer principles and applications.

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THREE PHASE MOBILE TRANSFORMER
The Three-phase Mobile Transformer is an essential tool for experiments and demonstrations of transformer theory. It consists of three identical transformers on a common core to create a three-limb, three-phase transformer. The transformer is inside a steel enclosure, which has small wheels for ease of mobility.
The transformer has a selection of high-voltage (primary) and low-voltage (secondary) tappings to select a range of input and output voltages.
All tappings are accessible, so students may link the windings to suit any of the common three-phase connections. All tappings connect to coloured, shrouded sockets for safety.
To show transformer principles clearly, the transformers operate as one volt each turn. This means that the no-load output voltage is the same as the number of turns on the secondary.
For a typical test, students connect the primary and secondary winding to suit their experiments. They then connect a suitable variable supply to the primary windings and measure the output voltages, with or without loads - determined by the experiment.
Thermocouples help to measure temperatures on the primary windings, the secondary windings and the core of one of the phases. The readings help the student to understand the temperature specification for materials used in transformers. Note: you need a suitable K-type measuring instrument (not supplied) to measure the outputs of the thermocouples.
To allow a complete range of tests, TecQuipment supply this product with three load banks; one resistive, one capacitive and one inductive (PSA50, PSA55 and PSA60).
  • Single-phase and three-phase experiments
  • Open and short-circuit tests to find iron and copper losses
  • Harmonics and unbalanced loading
  • Star-star, star-delta, delta-delta and delta-star connected transformers
  • Interconnected star (interstar or zig-zag) connection

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