E 2.4.3.1 Zawory przełączalne oraz przerywacz DC
Opis
The experiments are carried out on training panels in panel frames.
Objectives
- Protective measures and electrical safety
- Circuit assembly and wiring according to circuit diagrams
- Use of commercial measuring instruments: hand-held multimeters and oscilloscopes
Static converter valves with gate turn-off can be used to assemble a variety of DC choppers (DC/DC converters). Three different control methods are used for this:
- Pulse width modulation
- Pulse sequence modulation
- Two position control
The equipment set is suitable both for student experiments in a lab using low voltage (400 V three-phase) and on a mobile trolley for demonstrations by teachers in a classroom. The experiment procedures are contained in a printed manual.
The target group is made up of commercial apprentices and students of electrical machine construction. The course offers experiments at an intermediate level and also allows for the necessary insight into machine behaviour for scientific interpretation at undergraduate level.
Topics
- Thyristor with quenching circuit
- Power MOSFETs
- Insulated gate bipolar transistors (IGBTs)
- On-state characteristics
- Off-state and switching properties
- Control of DC choppers
- Step-up and step-down converters
- DC choppers using a thyristor with quenching circuit, PWM
- Control characteristic for constant load current
- DC chopper using MOSFETs, PWM, PFM and two-position control
- Single-ended forward and push-pull converters
- Half-bridge and full-bridge forward converters
- DC choppers used for step-up conversion, PWM and two-position control
- Energy recovery operation with PWM
- Energy recovery operation with two-position control
- Characteristics with variable current setpoints
- DC choppers with IGBT used as inverting step-up/step-down controllers with PWM
| 734 02 | Reference variable generator | 1 |
| 735 02 | Diode, 1000 V/10 A | 1 |
| 735 09 | Load power electronics | 1 |
| 735 18 | Fuse threefold super-fast | 1 |
| 735 065 | Rectifier B6, 3X400 V/10 A | 1 |
| 735 095 | Capacitors 2x 1000 µF, 385 V | 1 |
| 735 190 | Phase control noise filter 3 x 4.5 A | 1 |
| 735 341 | Control unit PWM/PFM | 1 |
| 735 342 | MOSFET 500 V/10 A | 1 |
| 735 343 | Thyristor with turn-off circuit 230 V/8 A | 1 |
| 735 346 | IGBT 1000 V/10 A | 1 |
| 501 02 | BNC cable, 1 m | 2 |
| 531 282 | Multimeter Metrahit Pro | 2 |
| 575 231 | Probe 100 MHz, 1:1 / 10:1 | 2 |
| 575 230 | Digital storage oscilloscope 722 | 1 |
| 735 261 | Isolation amplifier, four channel | 1 |
| 726 09 | Panel frame T130, two-level | 1 |
| 726 86 | DC-Power Supply ± 15 V/3 A | 1 |
| 726 80 | Transformer, 45/90, 3 N | 1 |
| 537 34 | Rheostat, 100 ohms | 1 |
| 537 35 | Rheostat, 330 ohms | 1 |
| 731 91 | * Shunt wound machine 0.3 | 1 |
| 731 07 | * Shaft end guard 0.3 | 2 |
| 500 59 | Safety bridging plugs, black, set of 10 | 2 |
| 500 851 | Safety connecting leads, 32 A, set of 32 | 1 |
| 500 852 | Safety connecting leads, 32 A, yellow/green, set of 10 | 1 |
| 565 331L | LIT: Power Electronics and Drive Technology, T 12.2.2.1 (in German) | 1 |
| 565 331S 4 | LIT: Power Electronics and Drive Technology, T 12.2.2.1 (in German) | 1 |
| 565 332 | * LIT: Power Electronics and Drive Technology, T 12.2.2.1 (in English) | 1 |
Articles marked with * are not essential, we do however recommend them to carry out the experiment.
Marka
Leybold
