Author: Ogrutan Pentre
Year of publication: 2000
What are the main causes of disturbances through the power supply network?
- switching of power installations;
- on-the-go reconfigurations of energy subsystems;
- changing the operating sockets of the transformers;
- operation with load shocks of medium and high power electric drive motors;
- current shocks specific to electric arcs (welding installations, electric arc furnaces, etc.);
- ON / OFF switching of important inductive and capacitive loads (such as mixed filter-compensation installations);
- accidental short circuits;
- overvoltages due to atmospheric electric discharges;
- rapid variations of the amplitude and frequency of the supply voltage over the limits allowed by the manufacturers of computing equipment as a result of network overload, switching of energy installations, short circuits, etc.
Course structure
- Voltage loss protection
- Network filters
- The need for limiting elements
- Limiting elements
- Protective devices for the power supply network
- Class D devices
- Devices for connection to boards
- Surge protection fittings
- The quality of the power supply to a PC
- Automatic Voltage Regulator AVR
- Simulation in SIMULINK of overvoltages
- Elimination of thyristor overvoltages
- Elimination of thyristor overvoltages and thyristor protection
- Elimination of overvoltages with varistor or gas discharge tube
- Destruction of equipment by surges
