Electrical Installation in Refrigeration Systems Vocational Training Equipment Refrigerator Training Equipment

SR2032 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