VFD panels stand for Variable Frequency Drive panels and it is a type of motor controller that is used to drive an electric motor by making some alterations in the frequency and voltage supplied to the electric device. These panels are commonly known by many names like adjustable frequency drive, micro drive, inverter, AC drive and adjustable speed drive.
If we need to increase the frequency of VFD panels, then the RPMs have to be increased. This shows that the frequency is directly related to the velocity of the motor, which is measured in RPMs. If there is a device that does not require the machine to run and operate at full pace, then VFD can be used to either slow down the voltage or frequency or both depending on the requirements of the electric motor. VFD can also maintain any transformation that needs to be applied to the speed specification of the motor.
Here are some of the reasons why you should use VFD panels:
- Less Energy Consumption: Variable Frequency Drive panel is used in motors that do not require to be run at their full pace. Thus, it can reduce the cost of energy consumption by lowering the voltage and frequency of the device. It reduces the power consumption and at the same time makes sure that the device can meet all the load requirements. If VFD is connected, the quality of the equipment is improved and since it cuts down the power consumption, the expenses also go down.
- Tighter Process Control: VFD also helps to make the process control tighter, which in turn is used for increasing the productivity of the device. You also get a chance to opt for motor usage according to the efficient speed of the device. This also makes sure that there are less errors. Less errors means that the productivity also gets boosted by another factor. This will make sure that you have higher profits and revenues.
- Less Maintenance and Longer Life- When a VFD is installed for monitoring a device and making sure that it runs on an optimal frequency and voltage, the downtime that is caused by the maintenance of the device decreases considerably and the device lasts longer. Since the device runs at optimal parameters at all times, more safety is provided to the device from issues like under voltage, over voltage, electro thermal overloads and phase protection. It also provides a decrease in the water hammer as it runs the acceleration and deceleration cycles very smoothly.
Now that you have seen how useful VFD panels are, you can certainly deploy them at the earliest. They are cost efficient, optimal and make sure you get the most out of your device. It also increases your productivity and helps you to generate profits and revenues with little or no maintenance at all.
All those in the industry know the importance of purging systems. This technique of purging enclosures and pressurising of the electrical apparatus is done to prevent the probability of any flammable atmosphere. It is a globally accepted protection concept that is used for explosion protection.
If there is an electrical control equipment then an air purge system is used to flush it with some clean air before turning it on. This is done to ensure that the contaminants present in the surrounding environment do not affect or damage the functionality of the equipment. These air purge systems are used for that analytic and control technology, which is exposed to flue gas that results due to an industrial process. The purge control panel is centrally placed to maintain a clear periphery path.
To determine which purge system will be appropriate for a specific application, the following primary factors are considered.
- Area Classification: Depending on the area, a particular purge system is employed. The Ex px /Type X system is used for Zone 1/Division 1 areas. This equipment is meant for general-purpose. But, if the area comes under Division 2/Zone 2, then Ex py /Type Y system is used.
- Ratings of the Equipment: The rating of the equipment that is used inside the enclosure is important based on which the purge system is decided. It is also to be seen if the enclosure has some hazardous gas in it.
- Size of Enclosure: It is the free volume inside the enclosure that determines the size of the enclosure. Other than that, the position of doors and windows is taken into consideration to choose the appropriate purge system.
The main advantage of using the purging systems over the explosion-proof enclosures is that it is safe in hazardous areas. In the case of explosion-proof enclosures if the explosion occurs it is contained within the enclosure. These enclosures are specifically made taking size and weight into consideration. If all bolts provided in these enclosures are torqued down as per the specifications then the explosion, if it happens, is contained within the enclosure.
Purged panels, on the other hand, use purge/pressurisation in any standard enclosures and do not allow the explosion to take place only. Thus, they are safe to be installed in the hazardous areas. The only downside of using the purge enclosures is that it requires an inert source or constant air during its operation. If very small enclosures are used then explosion-proof might have an edge on the cost factor but anything above 1 cubic foot, the purge is the best to use.
Soldering is a process that is used to join two metal pieces together by making a strong, permanent bond. The process of soldering is mainly used by electricians, technicians and jewellers. If you are able to master the soldering process, you can create masterpieces right at your home. In engineering colleges in India, almost every student has to learn the soldering process. Such is its importance in the modern world. In order to master the soldering process, you need to understand the basics of soldering. These basics most importantly include the detailed knowledge of its tools and how to use these tools properly in the right manner. In this post, we are going to list out seven essential tools for the soldering process:
- Soldering Iron/Soldering Torch: Soldering iron or soldering torch has the primary function of melting the solder. It passes high heat to the metal tips, which are then melted and a strong, permanent bond is formed between them. This is normally used for repair work and electricians use it to solder two wires in a strong bond.
- Soldering Iron Stand: Soldering iron stand is also an essential tool for the soldering process because once the soldering iron is heated up it reaches a very high temperature and it just cannot be kept anywhere in your workspace. So, you need to have a soldering iron stand to place the hot soldering torch.
- Soldering Wire: This is the wire that will melt and make a bond between the two metals you want to solder. Soldering wire’s melting should be lower than the metal pieces, so it is usually made up of lead, tin or brass.
- Solder Sucker: If you want to remove soldering then this solder sucker comes in handy. Solder sucker can also repair and replace and when it is put to use, the process is known as de-soldering. First, the joint to be de-soldered is heated and then the solder sucker is used.
- Flux and Brush- When a metal is heated in the soldering process, an oxide layer is formed, which is very dirty. If this layer is not cleaned, the flow of solder will be interrupted. To stop the formation of this layer, you have to first degrease the metal pieces you are going to join together and then you have to apply flux. This flux has the function of creating a new layer, which is airtight and this layer favours the running of solder. The flux should only be applied to the areas where you want to run your solder.
- Shears: Shear is one of the cutting tools essential for the soldering process. They are used if you want to make smaller pieces of your solder strip. A number of shears are available to cut solder strip into the desired size.
- Precision Steel or Titanium Tweezers- The bubbling and heating of the flux when it is heated can be quite frustrating for anyone. So, in this case, precision steel or titanium tweezers are used to hold stuff in place.
When the soldering process is completed, cleaning is also necessary. So, the tools used for cleaning purposes are solder flux cleaner and PCB flux cleaner. The flux that gets deposited on the flux has to be cleaned before re-use, so these types of cleaners are required.