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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.
Advantages of Expert System The system, once set up, requires to be tested employing data with known outcomes to see if it functions correctly. If it's being used to diagnos
Speed and Torque Control of Polyphase Induction Motors The induction motor is valuable in so many applications because it combines simplicity and ruggedness. Although a good nu
Ratiometer type frequency meter
Q. For the mechanical spring-mass-friction system shown in Figure, the differential equation relating the force F(t) and the velocity u(t) is given by where M is themass,D
Q. Describe Pulse dialling? Pulse dialling: 1. Generated through make and break contact. 2. DC Current pulse is generated. 3. Each number is separated by a short
Explain protected mode interrupt. In this mode, interrupts have exactly similar assignments as in real mode, but the interrupt vector table is not same. In place of interrupt
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
hello, I do have some exams or test samples which are related to control and procces engineering. Can you have them solved with ilestrastion of all solving steps
Q. Explain with the help of a circuit diagram,the operation of COLPITTS OSCILLATOR. Oscillator is a circuit used to generate a.c voltage without a.c.input signal.The energy to
A 10-hp, 230-V, 500-r/min shunt motor, having a full-load armature current of 37 A, is started with a four-point starter. The resistance of the armature circuit, including the inte
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