Place: Tuskegee, AL (USA)
Department of Material Science and Engineering
Date of Installation: August, 2017
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TEIR Electrical Installations in Refrigeration Systems Unit
INNOVATIVE SYSTEMS
For this purpose this unit has been designed to teach the students about different circuits and electrical devices associated with the refrigeration field, how to carry out the wirings of these types of installations, how the refrigeration components are mounted and how the interaction between them is.
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General Description
For this purpose this unit has been designed to teach the students about different circuits and electrical devices associated with the refrigeration field, how to carry out the wirings of these types of installations, how the refrigeration components are mounted and how the interaction between them is.
The wiring of electrical components is a typical task in the field of refrigeration. One important learning objective is the design and operation of the individual components and knowledge about the interaction of these components in refrigeration circuits.
Safety aspects also play an important role. For this reason electrical components are distributed in a clear and visible manner, this way the user can gain experience and improve skills with all elements and wirings.
All the components are connected on terminal blocks and they are arranged on a front panel so that they are all accessible and very visible. In addition, through the cables and electrical elements included in this unit it is possible to set-up many circuits correctly and operationally.
In order to get more realistic operations, this unit includes lamps and other elements, such as resistors to simulate energy consumption. All elements are supplied with mains power in order to carry out real operations of wiring and working with refrigeration equipment to provide high relevance for practice.
This unit includes electrical components for the start and operation of refrigerant compressors, such as electromagnetic start-up relay and capacitor, timers, circuits which can be designed and examined for cyclical defrosting in refrigeration systems. Besides, the unit provides correct programming of the timer, safety components (pressure switches and thermostats) and circuit breakers for realistic operations about electrical circuits of refrigeration systems.
These components enable the design and examination of a typical safety chain for refrigeration.
The well-structured instructional material sets out the fundamentals and provides a step-by-step guide through the experiments.
The following are the most important objectives and experiments which can be carried out with this unit:
Read electrical circuits diagrams.
Understand electrical circuits diagram.
Wire and test of electrical circuits diagram.
Design and testing of a safety chain.
Study of Star/Delta connection.
Change of rotation direction in a AC circuit.
Safety considerations when handling mains voltage.
Design, investigation and operation of electrical components in refrigeration systems:
Starting current limiter.
Safety switch.
Time relay.
Timer.
Pressure switch.
Starting capacitor.
Circuit breaker.
Starting relay.
Electromagnetic valve.
Service capacitor.
Exercises and guided practices
GUIDED PRACTICAL EXERCISES INCLUDED IN THE MANUAL
- Wiring and precautions of starting current limiter.
- Wiring and precautions of safety switch.
- Wiring and programming of time relay, starting relay.
- Wiring and precaution of service capacitor.
- Wiring of circuit breaker and electromagnetic valve.
- Star/delta wiring.
- Changing the rotation direction in an AC three phase circuit.
- Safety aspects about voltage operations.
SUPPLEMENTARY EQUIPMENT
9.10.3.- INSTALLATIONS AND MAINTENANCE TRAINING
TIR
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Assembly and Maintenance in Refrigeration Systems Unit
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Computer Controlled Refrigeration and Air Conditioning Modular Unit
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Measurement and Regulation Station Unit
The Measurement and Regulation Station Trainer,"MRST", designed by EDIBON is a totally accessible bench-top unit. The unit works with an air compressor that simulates the gas flowing inside the pipes (air testing), allowing to check the tightness...
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IGHT
Instantaneous Gas Heater Experimentation Unit
The Instantaneous Gas Heater Trainer, ,IGHT,, designed by EDIBON, is a training unit with wheels to facilitate its mobility that represents a gas heater training system. The unit operates with air, simulating the operation of the heater, so it can...
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Forced Draft Gas Burner Unit
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