1. POWER DISTRIBUTION TRANSFORMER TRAINER

The Distribution Transformer Trainer Model AUP-1 is a portable, hands-on trainer designed to allow students to develop competence in completing single/three-phase transformer connections similar to those performed in the field. The trainer contains two sets of three single-phase transformers to demonstrate three-phase banking configurations, such as wye-wye, delta-delta, closed delta-wye, closed wye-delta, open-wye, open-delta, and others. Each individual transformer winding is thermally protected and designed to accept multiple faults. The Model is built to supply 240 VAC with a center tap on the secondary winding when the primary winding is connected between line and neutral instead of line to line.

List of topics cover:-

• To find the transformation ratio of a transformer by watt meter method.
• To find the transformation ratio of a transformer on load by the ampere meter method.
• Polarity test of transformer.
• To determine the iron loss current, no-load current, power factor on no-load & magnetizing current.
• Study of transformer on no-load & on load conditions.
• To find the current losses of a transformer by sort circuit test.
• To find the iron losses of a transformer.
• To find the efficiency of a transformer by direct loading (Resistive).
• To determine the efficiency of a transformer by direct loading (Inductive load).
• To determine the efficiency of a transformer by back to back test.
• To determine the regulation of a transformer with resistive load.
• To determine the regulation of a transformer having inductive load.
• To use three single phase transformer as star to star connected three phase transformer.
• To use three single phase transformer as star to delta connected three phase transformer.
• To use three single phase transformer as delta to delta connected three phase transformer.
• To use three single phase transformer as delta to star connected three phase transformer.
• To use two single phase transformer as V-connected three phase transformer (open delta connection).