1 (a)Electrical drive control systems are made up of one or many of the followin
ID: 2292955 • Letter: 1
Question
1 (a)Electrical drive control systems are made up of one or many of the following devices. Define and explain each of the devices below (i) Electrical relays (i) Electrical solenoid valves (ii) Electrical contactors (iv) Control switches and lights [4 marks] [4 marks) [4 marks) 4 marks) (b) Modern engineering systems have sophisticated control systems. These control systems are the heart of modern systems and are critical for their successful operations. State 4 reasons for building control systems? 4 marks] [20 marks) 2 (a) Find the Laplace transform of the following time domain functions: f(t)a 10 marks] The Laplace-transformed expressions for the electrical current flowing through the circuit that is depicted in Figure 6 is given by the equation below (b) (R +Ls)s Where l(s) refers to the Laplace transformed current, R refers to the resistance, L refers to the inductance and ViNis the amplitude of the input voltage REVR V(t) l, Figure 6 RL series circuit Calculate the steady-state value of the electrical current flowing in the circuit for VIN-100 V, R = 1M12 and L = 0.1mH (10 marks)Explanation / Answer
1)
a) i) Electrical relay- it's a electrically operated device that is used to sense the fault in any electrical system.
ii) Solenoid valve- it's a electromechanicaly operated valve and controlled by an electrical current through a solenoid.
iii) Electrical contactors- these are elections operated device to open or close a circuit by a use of a small device.
iv) Control switches and lights- these are used to control the lightning within the space.
b) there are a lot of reason to use control system, they are used in a very small to large applications the 4 reasons to build a control system-
i) To get the online status of the quantity under control.
ii) if the quantity under control is not in the permissible lemit then we need to change the parameters.
iii) it is used to determine and acquire the stability of any system.
iv) if multiple systems are needed to clubbed together then control systems are used to synchronise the systems.
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.