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Do you know meaning of alphabets written on MCB just before current rating?

- May 17, 2024

What is MCB? MCBs are automatic switches that automatically turn off the power supply when it detects an excessive current. Earlier, this action used to be done by fuses. Though fuses have one disadvantage, they need to be replaced every time there is a short circuit. An MCB, on the other hand, can be manually restarted and is more durable. Types of MCB MCBs are installed in spaces depending on the need of the appliance. Hence, you will find multiple MCB types that can be used for a range of purposes. The most popular MCB types are A, B, C, D, K and Z. Of these, the most commonly used are B, C and D. These categories are often based on their trip curve or tripping capacities. Type A MCB trips off the circuit when the current exceeds 2-3 times the actual current rating. A type MCB – Miniature Circuit Breaker is highly sensitive to the short circuit, and hence we can find its application in the manufacturing of semiconductors. Type B These are often used in residential properties or...

Recognizing the risks associated with incorrect earthing of diesel generator.

- May 09, 2024

Incorrect earthing of a diesel generator can pose several risks: 1. Electric Shock: Improper grounding can lead to electric shocks, endangering anyone in contact with the generator or its surroundings. 2. Equipment Damage: Inadequate grounding may cause electrical equipment connected to the generator to malfunction or be damaged due to power surges or improper current flow. 3. Fire Hazard: Poor grounding increases the risk of electrical fires, which can result in property damage and pose a threat to occupants' safety. 4. Non-compliance: Improper earthing can lead to violations of safety regulations and codes, potentially resulting in legal consequences and liability issues. 5. Operational Issues: Incorrect grounding can cause the generator to operate inefficiently or inconsistently, leading to disruptions in power supply and potential damage to connected devices or systems. It is always safe practice to ensuring proper earthing is essential for the safe and reliable op...

What are the disadvantages of poor power factor?

- April 18, 2024

Disadvantages of poor power factor - 1-Greater Copper Losses As at the low power factor, the load current is greater. Therefore, the large load current causes more I^2* R losses in all the components of the supply system. This in turn results in poor efficiency of the system. 2- Large kVA Rating of Equipment The electrical source equipment such as alternators, transformers, switchgears, etc. are always rated in kVA because the power factor of the load is not known when these equipment are manufactured in the factory. Hence, from the definition of power factor, we get, kVA rating=kW / cosϕ That is, the kVA rating of the equipment is inversely proportional to the power factor. Therefore, the lower the power factor, the higher the kVA rating of the equipment. Hence, at low power factor, the kVA rating the equipment needs to be made more which increases the size and cost of the equipment. 3- Larger Conductor Size For transmitting and distributing a constant amount of power at a consta...

Things to consider while buying APFC panels

- March 01, 2024

Things to consider when buying APFC panels: 1. Power factor: Power factor is a measure of how efficiently your electrical system is using power. APFC panels are designed to regulate your power factor, improving the efficiency of your system and reducing your energy costs. 2. Size of the panel: APFC panels come in different sizes, so it's important to choose the right size for your needs. The size of the panel will depend on the size of your electrical system and the amount of power it uses. 3. Cost: APFC panels can vary widely in price, so it's important to set a budget and choose a panel that fits within your budget. 4. Installation: It's important to have your APFC panel installed by a licensed and experienced electrician. A qualified electrician can ensure that your panel is installed correctly and safely, and can help you choose the right panel for your needs. By choosing the right APFC panel and working with a qualified electrician, you can improve the efficiency ...

Different applications of shunt capacitor.

- January 05, 2024

Shunt Capacitors and it's applications Shunt means parallel. In simple words, the capacitor is connected in parallel with a load or power supply is called shunt capacitor. The series and parallel combination of a no. of shunt capacitors is called shunt capacitor bank. So shunt capacitor is not a special device. It is a normal capacitor only, it is called a shunt capacitor because of its parallel connection with load. Application of Shunt Capacitor: 1-Electrical Power Distribution System. In an electrical power distribution system, shunt capacitors are used. Generally, shunt capacitors or shunt capacitor banks are connected in parallel with each feeder to improve the power factor of that particular feeder. 2-Electrical Transmission line. Shunt Capacitor bank also used in long-distance transmission lines. In long-distance transmission lines (above 66KV) shunt capacitor banks are used to increase the electrical power transfer capability without extra conductors. The shunt capacitor a...

Vector group of transformer

- December 20, 2023

The naming convention popularly known as Vector Group of Transformer was established by the International Electrotechnical Commission (IEC) through IEC 60076-1. This was done in order to create a notation for three-phase transformer winding configuration. Vector Group of Transformer: Common Symbol Designation Y or y – star winding D or d – delta winding N or n – neutral 0 to 12 – phase displacement in terms of clock position in multiples of 30°. According to the standard, the notation should follow HV-LV-Phase displacement sequence with the HV winding in uppercase and LV winding in lowercase. SANKALP INDUSTRIAL SERVICES www.sankalpindustries.in

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