ASR2032 Electrical Installation in Refrigeration Systems Vocational Training Equipment Refrigerator Training Equipment
Learning Objectives / Experiments
– Read, understand, wire and test electric circuit diagrams
– Design and operation of electrical components from refrigeration
* start-up capacitor
* operating capacitor
* start-up relay
* time relay
* timer
* circuit breaker
* start-up current limiter
* contactors
* pressure switch
* thermostat
* solenoid valve
– Design and testing of a safety chain
– Star / delta connection
– Change of direction of rotation in an alternating current circuit
– Safety aspects when handling mains voltage
Specification
[1] Experimental unit from the practical series for the training of mechatronics engineers for refrigeration
[2] Design and investigation of circuits with electrical components from refrigeration
[3] Electrical components mounted clearly visible and connected on terminal blocks
[4] 1 set of cables with wire end ferrules for wiring electrical components on terminal blocks
[5] 3 pressure switches, 2 thermostats, 1 solenoid valve, 1 timer, 4 circuit breakers, 5 contactors,
3 relays, 2 capacitors
[6] 5 lamps to simulate consumers
Technical Data
3 pressure switches
– high pressure: 8…32bar
– low pressure: -0.9…7bar
– differential pressure: 0.3…4.5bar
2 thermostats: -5…20°C
1 timer
– 2 switchable outputs
– switching time: 1…60min
4 circuit breakers
– bimetallic circuit breaker
– thermistor circuit breaker
– circuit breaker with start-up current limiter
– adjustable protection relay
5 contactors
– 2x: 3 NO, 1 NC
– 3x: 4 NO
3 relays
– electromagnetic start-up relay
– PTC start-up relay
– time relay
Start-up and operating capacitor: 15μF, 80μF
Dimensions and Weight
l x w x h: 800 x 400 x 1000 mm
Weight: approx. 37 kg
Connections
400V, 50Hz, 3 phases or 230V, 60Hz, 3 phases
