In industrial applications, ensuring the stability and reliability of power supply to critical equipment is paramount. A Variable Frequency Drive (VFD) is one such crucial piece of equipment that controls the speed of electric motors by varying the frequency of the power supplied to them. The addition of an Uninterruptible Power Supply (UPS) in a […]
Protective grounding, also known as earthing, is a safety measure in electrical systems where the non-current-carrying metal parts of equipment (like the metal casing) are connected to the earth. This is done to protect both people and equipment in the event of an electrical fault. The key purpose of protective grounding is to prevent high
What is Protective Grounding and Why is it Necessary? Read More »
Introduction In the first half of this year, we implemented significant improvements in the sulfuric acid plant’s DCS (Distributed Control System). By optimizing control processes, we reduced operational events and alarms by over 90%. While this achievement is exciting, what inspires us even more is the innovative problem-solving applied within the DCS to achieve this
Summary of the Zero Manual Operation Project for the Sulfuric Acid Plant Read More »
In control theory, the PID (Proportional-Integral-Derivative) controller is often considered the simplest and most effective control algorithm. For systems with a strong, single-variable cause-and-effect relationship, PID is not only straightforward but also highly efficient. The tuning of PID parameters is an essential skill for control engineers, and it remains the foundational knowledge for designing control
PID Control vs Advanced Control: A Comprehensive Overview Read More »
In the field of industrial automation engineering, accurate estimation of input/output (I/O) points and control cabinet quantities is crucial for ensuring a reliable and scalable system design. This article provides detailed principles and methodologies to estimate I/O points and control cabinets effectively. Principles for Estimating I/O Points Equipment Requirement Analysis: Conduct a thorough assessment of
Estimation of Control System I/O Points and Cabinet Quantity in Industrial Automation Read More »
Introduction In a certain workshop, a PLC (Programmable Logic Controller) device, which had been running stably for some time, started experiencing frequent output failures. This malfunction caused the control of solenoid valves to fail, leading to a complete halt of the production line. Initially, maintenance electricians struggled to address the issue, unable to find a
Optimizing PLC System Reliability: A Cost-Effective Solution to Frequent Output Failures Read More »
Atmospheric storage tanks and breather valves play a critical role in the storage of liquids, particularly in industries such as petroleum, chemicals, and food processing. Regular inspections and maintenance are essential to ensure safe and efficient operations. This article outlines the regulatory requirements, inspection methodologies, and maintenance guidelines based on international standards. 1. Inspection Requirements
Inspection Requirements for Atmospheric Storage Tanks and Breather Valves Read More »
Even if you don’t have in-depth knowledge of PLCs, you can still perform initial troubleshooting and maintenance by following these steps. However, for more complex issues, it’s recommended to consult a professional technician. 1. Initial Inspection Power Supply Check: Ensure the PLC power supply is functioning correctly. Check if the power indicator light is on.
Safety Instrumented Systems (SIS) play a critical role in ensuring the safety and reliability of industrial processes, particularly in high-risk sectors such as oil and gas, chemical manufacturing, power generation, and nuclear energy. SIS is a crucial layer of protection that automatically intervenes when abnormal or hazardous conditions are detected, mitigating risks to people, equipment,
Understanding Safety Instrumented Systems (SIS) Read More »
Pressure transmitters are commonly used in various industrial applications, and understanding the migration phenomenon in these devices is crucial for accurate measurements. Migration in pressure transmitters can occur in three main forms: positive migration, negative migration, and no migration. This article explains the concept of each migration type and provides detailed guidelines on how to
Understanding Positive, Negative, and No Migration in Pressure Transmitters Read More »
