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1. Name the three parts of a programmable logic controller (PLC) and explain why the PLC is preferred by designers over electromechanical relays.
2. Medium-voltage circuit breakers operating on system voltages between 600 volts and 15 kilovolts generally contain blow-out coils and a puffer. Describe a puffer.What is its funtion?
3. How is an electrical distribution system protected from lightning strikes? Name and describe the device used and describe its electrical connection to the distribution system it protects.
4. The first step in preparing a primary distribution cable for connection to a transformer, tap box, or other terminal equipment is to remove the semiconducting jacket. The next step is to crimp a flat lug onto the cable connector. List in any order any three of the next six steps in making the connection.
Q. Let a square-wave voltage source having an amplitude of 5V, a frequency of 1 kHz, a pulse width of 0.5 ms, and an internal source resistance of 50 be applied to a resistive lo
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Define the term Causality LTI System Any practical LTI system operating in real time must be "causal" which means that its impulse response {h[n]} must satisfy h[n] = 0 for n
Q. Give the classification of oscillators. Discuss the frequency stability of oscillators. Oscillators are classified in the following different ways. 1. According to the wa
Successive approximation ADC One method of addressing digital ramp ADC's shortcomings is so-called successive approximation ADC. Only change in this design is a very special c
The covers of electrical machines are made of (A) Soft magnetic materials. (B) Hard magnetic materials. (C) Super conductors. (D) Semicond
Explain Information Obtained for the Load Flow Analysis (i) Magnitude and phase angle of the voltage at each bus. (ii) Active and Reactive power flow in each line. (iii
Planned and coordinated development: The CEA would prepare the global Electricity Plan after carefully carrying out the demand forecast in consultation along with stakeholders
Ask question #Minimum 100 words acceptThere are various refrigeration systems employing various methods. State any seven (7) refrigeration systems, mention the method(s) employed t
Q. Basic elements of a digital communication system? Figure illustrates the basic elements of a digital communication system. For each function in the transmitting station, th
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