Control valve Noise – Cage trim

Noise produced in pipelines may be pump-generated (changes in power and pressure. or varying amplitudes of pressure pulsations) or fluid-generated (flow instability, turbulence or simple fluid friction). Noise caused by the operation of valves, regulators and control elements is transient and related to the degree of turbulence or cavitation produced although. in specific designs and …

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Installation & Troubleshooting of communication systems -part 1

Introduction  When solving problems in a communications system, the engineer or technician tries to use some standard format to arrive at a faster solution. Industrial communications systems do not always respond to proven approaches that worked with wired inputs and outputs. Common problems and solutions: Some of the causes of industrial communication problems include: • …

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Overview of Advanced process control Methods

Introduction Advanced process control (APC) is a broad term within the control theory. It is composed of different kinds of process control tools. Advanced process control is often used for solving multivariable control problems or discrete control problems. Adaptive Control An adaptive control system can be defined as a feedback control system intelligent enough to …

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Vacuum Circuit Breaker or VCB 

Introduction A circuit breaker is a device that interrupts an electrical circuit to avoid unwanted currents, caused by a short circuit, which generally results from an overload. Its basic functionality is to interrupt the flow of current after a fault is detected.  A vacuum circuit breaker is such kind of circuit breaker where the arc quenching …

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