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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.
how back emf is produced in transformer?
Q. Do as directed. a) Hexadecimal addition: 101 + ABC b) (43.25) 10-(89.75) 10 using 1's Complement c) Octal Subtraction 123-777 d) (123)6 + (435)6 = ( ? )6 e) ABC
-micro controller AT89C51 -dc motor -magnetic sensors -load sensors -how to connect all the components? and give me a circuit diagrams -how to interface all the component with m
1. A current carrying conductor is found to carry 10 μA at a given time slot from 5μs to 1.5 ms. Find the total number of electrons flowing in the conductor during this time slot.
A relay is essentially an electromechanical switch that opens and closes electrical contacts. A simplified relay is represented in Figure. It is required to keep the fenomagnetic p
Direct data addressing mode (with examples) available in microprocessors. Direct Mode: Instruction comprises memory access. CPU accesses which location into memo
Operation of octal to binary encoder
Q. Define Memory For a digital computer? For a digital computer which stores both programs and data, memory can be divided into three types: random-access memory, mass storage,
Q. Discuss the nature of sinusoidal signal? Discuss the nature of evenness and oddness of: (a) The sinusoidal signal x(t) = A cos(2πf 0 t + θ). (b) The complex exponentia
Q. Draw the differentiator circuit. Explain its principle of operation with necessary waveforms ? A circuit in which the output voltage is directly proportional to the derivati
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