In my last post I discussed about Pipe Electrode Type Earthing System and Rod Electrode Type Earthing System. In this post I am going to discuss about another two methods of earthing system and those are “Driven Electrode Types Earthing System and Plate Electrode Types Earthing System“. Driven Electrode Types Earthing System: This type of earthing system you can stable where soils has reasonable free from stone. For this method you need to have a driven stud for all types Read More …
Pipe Electrode and Rod Electrode Types Earthing System
In this post I will discuss about Pipe Electrode and Rod Electrode types earthing system. Pipe Electrode Types Earthing System: When you are planning for pipe electrode types earthing system then your pipe electrode diameter should be minimum 38mm (1.5”) for the GI pipe and 100mm (4”) for the cast iron pipe. Now the minimum length of the pipe electrode should be 2.5m (9”). But the upper end is at a minimum depth of 1.25 meter from the ground level. Read More …
Methods of Electrical Earthing Systems
This is my second post about electrical earthing system. In this post I will discuss about requirement of electrical earthing system and methods of electrical earthing systems. Electrical Earthing System: Electrical earthing system is composed of, Earth Electrode: Earth Electrode is the last part for an earthing system. It is the part of which is always buried into the earth. There is some types of earth electrode are used like Pipe Electrode, Rod Electrode, Driven Electrode and Plate Electrode. According Read More …
Introduction of Electrical Earthing System
Electrical Earthing is one of the most essential parts in electrical engineering. You may deal will different types of electrical equipment and if there is no earthing system then you are at high risk. But having a earthing system is not enough. You have to calculate your overall load and individual earthing for each electrical equipment and machine. In my factory we calculate all earthing system according to our government guideline from our outdoor substation to individual machine. But you Read More …
Induction Motor Troubleshooting and Inspection Chart
I work in a Spinning Mills. We use to produce 100% export quality of yarn from cotton. In a spinning factory you will find different types of machine like Ring Frame, Simplex Roving Frame, Carding Machine, Drawing Framer and many more. But most important thing is that the entire machine has at list one motor. If I include humidity plant or AC Plant then it will be huge number of motor you can find in spinning mills. So it’s important Read More …
What is IP or Ingress Protection
When you are handling with motor, inverter or any others electrical component then you may notice the word ‘IP’ on its name plate. Ok leave that. I think you have a smart phone and its water proof. Now what does it means to you. Your phone will stay active any kind of weather if there is lot of dust or full of water. And it also means that dust and water cannot penetrate to your device which has IP level Read More …
How to Select a Perfect AC Motor?
Electric Motor is one of the most common electrical components. You may already found various types, shapes of AC motor in your service life. Form my side it’s a daily work to inspect at list two motor in my work. But when I was new engineer it was little bit complicated to select a perfect motor for my work. Maybe I am not so advance about electric motors but at list I can tell you what you need to follow Read More …
Protection for a Power Transformer
Power Transformer is an essential electrical component. Engineer like me, who only depend on transformer then it’s really important to keep the transformer active for 24/7. If there is any problem with transformer then all machinery inside of the factory floor will be silent and zero production will come. When you are having problem with your transformer then it may take long time to repair it. So it’s better to protect power transformer at first place. In this post I Read More …
Transformer Installation, Inspection and Commissioning
I already posted couple of article about power transformer. In this post I will discuss about the indoor transformer installation, inspection and commissioning. Transformer Indoor Installation: There is some specification if you want to install a power transformer inside a room. But you can do it when you get the permeation from the government. In my country if we are making a substation and our supply voltage is 11 KV then we can install our transformer inside a room. But Read More …
Transformer Schedule and Overhaul Maintenance
In this post I will discuss about the schedule and overhaul maintenance for a power transformer. So you just need to follow this procedure for a power transformer. For batter and smooth operation, this two type of transformer maintenance should perform. Schedule Preventive Maintenance For Power Transformer: First of all visual inspection. Inspect the transformer very carefully. You may detect some fittings problem on transformer body and eliminate the problem. Drainage of transformer sludge, etc,. Form the conservator. Adding the Read More …