DIPASHRI GAVALI- PATIL

I am an Electrical Engineer with over 12 years of experience in electrical projects and industrial engineering, specializing in PLC-based automation, circuit design, and industrial electrical systems. Passionate about continuous learning and innovation, I focus on solving industrial challenges and developing practical, value-driven solutions. With a strong solution-oriented mindset, I bridge engineering expertise with real-world applications to deliver reliable and efficient results.

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Low voltage circuit breakers

Posted by Dipashri Gavali- Patil on March 08, 2022

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Dipashri Gavali- Patil: Mumbai, Maharashtra, India

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Electrical basic knowledge5
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Equipment selection1
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Why Transformer Ratings are In KVA?

All electrical devices are rated based on the maximum power it can consumes, generates or transfer. Transformers are rated in kVA or VA . Transformers are an energy transfer device that transfers power from the primary side to the secondary side without changing frequency. Why transformers are rated in kVA and why not it is rated in kW like heater, motor and other electrical equipments? 1- Copper loss in transformer depends on the current and the iron loss depends upon the voltage of the transformer. Total losses in a transformer depend upon volt-ampere (VA) only and not on the power factor of the load.This is the reason transformer is rated in KVA and not in KW 2- Transformers are manufactured without considering the load being connected. So any kind of electrical load can be connected it may be resistive, capacitive, inductive or combination loads. If the transformer is rated in KW, there may be confusions regarding the type of load being connected. That is why the transformer ratin...

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

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...

What is Vampire Energy?

If your electricity bill is unpredictable from month to month or it’s consistently higher than you would like, vampire power may be the culprit. What is Vampire Energy? Vampire power also called phantom power or standby mode, in which appliances consume energy even when they are shut off, can account for up to 20% of your monthly electricity bill. While sitting unused and idle, your TV or toaster oven is sucking money right out of your pocketbook. Why Do Devices Leak Energy? Essentially, every cord that remains plugged into an outlet is still using an electric current. While many devices have sleep or standby modes, they continuously use energy to perform updates, connect to remote servers, and record data. The connectivity of modern technology is one reason why devices leak energy. Even when the TV is off, for example, it’s still ready to receive a signal from the remote to power on at any time. Your DVR is always “lying in wait” until it’s time to record the next show or running...

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