Free Download CCTV Book
The IP-based CCTV systems are designed to monitor, record, and stream video over a network to computers. Free download the book.
Editorial Staff
Why V/f Ratio is kept Constant in VFD?
When motor running through VFD the V/f ratio is kept constant in order to minimize the eddy current and hysteresis losses.
What is Smart or Intelligent MCC?
A Smart MCC uses intelligent devices with dedicated controller with profibus communication to monitor & control the motors.
9 Best E-Book Apps for Students
In this list of best 9 e-book apps, one can find any type of offer, from free to paid ones for the students.
What is Torque Boosting in Variable Frequency Drive (VFD)?
High inertial motor loads can be started by programming the V/f pattern in VFD. This feature is known as Torque Boosting.
What is a Head Mount Temperature Transmitter? – Advantages
Head mount temperature transmitter converts the signal from RTD or thermocouple into 2 wire loop powered 4 to 20 mA signal.
Polarization Index (PI) Test and DA Test
Polarization Index (PI) and DA Tests are used to check the insulation resistance value of insulating materials used for electrical system.
Why 4 wire RTD Measurement Accuracy is better than 2 and 3 wire RTD?
The 4 wire RTD accuracy is better than the 2 or 3 wire RTD’s as temperature measurement based on voltage signal instead of resistance.
Why 4-20 mA Current Signal is used instead of Voltage Signal?
Learn why 4-20 mA current signal is used in industrial automation plants instead of a voltage signal 0-5v, 0-10v etc.
Identify Solenoid Valves Energized or de-energized?
Sketch arrows next to each of the two solenoid valves showing the directions of air flow in the energized (E) and de-energized (D) states.