Name five (5) types of equipment typically supervised by an HVAC control system.
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Name five (5) types of equipment typically supervised by an HVAC control system.
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- Lockout is required: During servicing and maintenance where unexpected ener- gization or start-up of equipment could harm employees. During repair and replacement work, and during renovation work. a. b. C. During modifications or other adjustments to powered equipment. d. All of the above. Lockout may involve: Opening a disconnect switch. b. a. Closing a valve. Placing a block in the equipment. d. All of the above. C. Lockout is the process ci Shutting off a machine at the end of a shift. Warning equipment operators about the risks involved in bypassing a machine guard. Preventing the flow of energy from a power source to a piece of equipment, and keeping it from operating. a. b. C. d. Preventing mechanics from starting repairs without the machine operators' knowledge. Tagout: Serves as a warning. b. Physically restrains a person from operating a power source. Must be applied using specialized tagout tools. a. C. d. Must be worn like a badge by the employee who is doing the repairs.…What are the different types of power system faults, and how do they affect system operation?How does a fault in a power system affect system stability and reliability, and what are the protective devices used to mitigate these effects?
- Explain the concept of load shedding and its importance in preventing power system blackouts.A real-life production facility scenario is given below. In a manufacturing facility, the pilot light comes “ON” when all of the following conditions are met: Both normally open circuit pressure switches must be closed. One of the two normally open limit switches must be closed An emergency stop or reset button to turn the Pilot lamp OFF if needed. Answer the following questions based on the above scenario. Identify and list the inputs and outputs used in this scenario. Draw a relay schematic for this scenario. Draw the ladder logic for the given scenario.---What are the different types of faults that can occur in power systems? Explain how each type affects system stability and reliability.---
- What is load shedding, and why is it necessary in power systems during emergencies?I have this rough circuit diagram of a 2 double end trolley light system with a 120 dcv power supply. I would like to know in what way is better to connect the interior lights along with the headlight and door light. Provide the circuit diagram and with its respect connection and the estimated total power rated for the lights. Where: Headlights (2) = #1 and #6Door lights (4) = #2, #4, #5, and #7Platform lights (2) = #3 and #8Interior lights are approximately 20 in quantity. Also, can you say if the components that are in series with the power supply are correct or does it need to be replaced with something else or if it is missing any components.Explain the importance of power system protection. Discuss various types of protection devices and strategies used to safeguard electrical infrastructure from faults and disturbances.
- Question 5Describe the key principles behind power system protection schemes and their importance in preventing faults and failures.[Fill-in-the-blank] in dwelling units shall supply only loads within that dwelling unit or no loads associated only with that dwelling unit. Select one: a. None of these b. Ground-fault protection c. Service-entrance conductors d. Branch circuits
