AST1112 training bench of a chopper with load school teaching equipment Electrical Skills Training
1 product overview
1.1 overview
By chopper of relevant experiments, can be familiar with the characteristics of the chopper, grasp its control principle and control mode, the corresponding knowledge and skills, suits, higher vocational colleges, secondary vocational schools and vocational school related professional teaching and skills training examination.
1.2 features
(1) the training platform adopts the frame structure of aluminum profile, which can be moved flexibly. The measuring instrument and the actual training power supply built-in integration installation, easy to use, not easy to damage.
(2) the actual training platform is fully configured, and the modules can be used in combination to complete a variety of training contents.
(3) the training platform has a good security system.
2 performance parameters
(1) input power: two-phase three-wire system 220V plus or minus 10% 50Hz
(2) external dimension: 600mm x 400mm x 1300mm
(3) unit capacity: < 0.5kva
(4) weight: < 50kg
(5) working conditions: temperature – 10 ℃ ~ + 40 ℃ relative humidity < 85% (25 ℃)
3.Experiment list
(1)The bench allows the study of 4 typical schema of chopper:
- Serial chopper voltage reducer
- Serial chopper voltage increaser
- Voltage increaser-reducer chopper (inverter)
4 quadrants chopper
(2) test the characteristics of different currents and voltages
(3) master the method experiment of chopper
4.The bench include the following modules:
- Power module of the inverter (chopper)
- The module allows the study of 4 typical schemas:
- Variable clock frequency with direct display of the frequency and cyclic ratio
- Measuring points of different current and voltage
- Input 0 … 220V DC at least
- Input current 5A at least
- Output:
- Reducer from 0 to 220V DC at least
- Increaser from 0 to 250 V DC
- Inverter from 0 to 250V DC at least
- Frequency from 16 kHz to 35 kHz
- Power supply of the inner electronic from network 230V AC, 50Hz
- Powering module
- 3phase transformer 1000 VA at least
- Input 400V 3phases
- Light indicators
- Protection by circuit breaker
- Output DC and AC adapted to the equipment
- Loads module
- Resistive load composed by 3 resistance with different values 100W each one
- Inductive load composed by 2 inductance with different values (between 40 mH and 100 mH) supporting 6A current
- Motor/generator with separated excitation 700W with tachymetric dynamometer coupled to the shaft end
- DC powering module
- Powered by 230V AC, 50Hz
- Variable output from 0 to 240V DC
- Output current 6A at least
- Protection against short-circuit
- Display of the output current and voltage
Accessories:
The bench is mounted on experimental support (included)
