Required Three Phase Transformer:

• power supply of 380 kV. Rated power no more than 800 VA.
  1. Primary: winding 3 400 V with tap at 230 V, can switch to star or delta connection.
  2. Secondary: 3 x 380 V winding
  3. Resistive load must be: 3 synchronously adjustable circular rheostats each with a series resistor and a fuse in the sliding contact connection,  series, star-shaped and triangular circuits.
  4. Resistance: about 3 x 1000 Ohms.
  5. Series resistance: about 3 x 22 ohms.
  6. Current: 3 x 2.5A.
• The power analyzer should be with opportunities for the following applications:
  1. In power networks: Stability of voltage and frequency, load behavior of networks
  2. In electrical machines: Inrush current from transformers and machines, transformation ratio of transformers.
• Machine efficiency
  1. Power Electronics: Rectifier, AC and DC converters, frequency converter, filter.
  2. Power Analyzer  must have possibility  a combination of an isolated and differential oscilloscope, multimeter, wattmeter, energy analyzer and recorder.
  3. Averaged voltage, current;
  4. RMS voltage and current;
  5. Fundamental wave filters
• Setting up a delta connection.
  1. Universal connectivity: via USB-port with a personal computer or laptop; via the option of wireless WLAN with a school network or setting up your own access point; automatic or manual range selection.
  2. Direct sequence component, reverse sequence component zero sequence component in three-phase systems: time derivative, time integral, FFT analysis, average value, histogram and model; The ability to manually control directly on the device using the rotary switch with the cursor keys;
  3. Must has a backlit display;
  4. Display up to 24 measured values ??on one display;
  5. Display of all values ??for each channel;
  6. Display of all values ??in tabular form;
  7. Display of measured values ??on a graph;
  8. Display a vector diagram.
  9. Providing opportunities wireless connection for experimenting with a tablet and smartphone (iOS, Android and Windows).
  10. Real-time processing in the device should allow a comprehensive analysis of the network in three-phase networks, which are displayed directly on the device in a vector diagram
  11. Equipment must comply with applicable standards. Acceptable "Variations ± 15% of the required parameter values, provided that such changes do not affect the intended functionality of the equipment"