What is Eddy Current Loss?-Definition and Expression

Eddy Current Loss When magnetic material comes under magnetic field generated by alternating current, an emf is induced in the material according to Faraday’s Law of Electromagnetic induction. The magnetic material has electrical conducting property and the induced emf in the material cause current to flow in the magnetic material. The current circulates within the … Read more

Control Valves Pre-Commissioning Checklist

control valve

In this article, we will discuss the pre-commissioning checklist. Control valve pre-commissioning checklist which includes activities like installation, inspection, testing, and taking valve online operation. The pre-commissioning activates if done carefully save a lot of time during main commissioning phase. Pre-commissioning includes the following activities. Checking of equipment Cleaning of valve  Leakage detection tests Cold … Read more

How to Test TRIAC with Multimeter?

In this article, we shall discuss about how to test TRIAC with multimeter. The triac is one of the important device in the power semiconductor devices family. The triac is widely used  for controlling the AC voltage. How to test TRIAC with Digital Multimeter OR using Ohmmeter? The symbol of the triac is given below.   … Read more

How to test SCR using Multimeter?

scr test pass in forward conducting mode

In this article we shall discuss about how to test the SCR using multimeter. For troubleshooting of the electronic card especially power circuit diagram, knowledge of SCR testing with the simplest method is must. The first thing we should know about the leads of  SCR- anode, cathode and gate. The SCRs are available in different … Read more

Advantages of Valve Regulated Lead Acid (VRLA) Batteries

Valve Regulated Lead Acid (VRLA) Batteries are sealed maintenance free lead acid batteries. The normal lead acid battery evolve  hydrogen which needs to vented through the cell in order to avoid explosion of the battery. On the other hand, the evolved hydrogen in the VRLA battery is reused in the battery itself. Therefore, no venting … Read more