Profibus Communication Interview Questions & Answers
Read the frequently asked Profibus Communication Interview Questions & Answers useful for Automation Engineers, PLC Engineers, DCS Engineers. Profibus Communication Questions What is PI ? PI was formerly know as…
In-Line Flow Switch Working Principle and Animation
In-Line Flow Switch, As liquid flow enters the flow switch, it passes through an orifice between the inlet and outlet ports.
Float Level Switch Working Principle Animation
All float-operated liquid level switches operate on the buoyancy principle: "the buoyant force acting on an object is equal to the mass of liquid displaced by the object". As a…
Ultrasonic Level Switch Working Principle
An ultrasonic switch is a device that uses inaudible high-frequency sound (ultrasound) to detect the presence or absence of a liquid at a designated point. The device consists of an…
Air Filter Regulator Working Principle Animation
Air Filter Regulator are used to remove liquid water and particulate matter from compressed air sources. These are 'mechanical filters' and do not remove oil vapors or chemical contaminants in…
How to calculate Thermocouple Temperature by measuring the output millivoltage
HOW TO DETERMINE TEMPERATURE BY MEASURING THE OUTPUT MILLIVOLTAGE OF A THERMOCOUPLE THERMOCOUPLE REFERENCE TABLES The N.I.S.T. (National Institute of Standards and Technology) is the U.S. standards setting agency. They…
Single Phase Earth Return System Advantages & Disadvantages
Generally in secondary distribution system, single phase two wire distribution system is generally followed. But for remote distribution systems in rural areas single phase ground return system has found economical.…
Voltage Control Methods at Distribution System
All the equipments connected to the power utility system is designed to be used within the voltage range. Voltage drop exist in each part of the system. Consumers who are…
Conductor Size Selection in Distribution Power System
In power distribution system both aluminium and ACSR are commonly used. Mostly aluminium conductors are used in the distribution system because of cheaper in cost. Some of the factors which…
Underground Cable Fault Identification Methods
If a fault occurs in the underground cable, it is essential that the type of the fault and location of the fault should be determined as quickly and accurately as…
