VFD (Variable Frequency Drive ) Cable Uses and importance

A Variable Frequency Drive (VFD) is a type of controller that varies the frequency of the signal and voltage to control motor speed. Other common names for VFD include variable speed drive, adjustable speed drive, constant torque drive, inverter drive, and pulse width modulation (PWM) drive.  

When working with a VFD system, you need VFD cable that can handle the harsh electrical environment for which standard cable is not designed. Why is that? VFD systems characteristically create a significant amount of electrical noise in the form of voltage spikes, reflected waves, charging currents, common-mode voltage and RFI/EMI interference. This leads to voltages that are 2-3 times the source voltage. In the case of a non-VFD cable, this could result in insulation breakdown and cable failure. Non-VFD cable also allows common-mode (or stray) voltage to find its way through the motor and equipment grounds, which causes motor and equipment failure. VFD cable significantly reduces the risk associated with these issues.

Not seeing a problem with the cable you’re using on your VFD system so far? Ask yourself these questions:

• Have you ever made adjustments to your VFD controller to reduce or eliminate nuisance faults? If so, this may be an indicator that the standard cable you’re currently using is not adequate for the VFD system.
• Are you experiencing motor failures sooner than you expected? What about other equipment failures? Cable failures? All three types of failure are symptoms indicating you may be using ill-suited cable.

Read on to learn more about VFD systems – why they’re used in the first place, the benefits and challenges, reasons to choose VFD cable over standard cable, and TPC’s solutions for your VFD cable needs.

A VFD system is typically comprised of 3 components, at least: VFD controller, VFD cable, VFD motor. These systems are commonly found where motors are being used to control a process or equipment requiring varying motor speeds – i.e. pumps, fans, compressors, conveyors, and more. 

Benefits of working with a VFD system:

• Improved control – Motor speed controlled within 0.1% of tolerance, facilitating complex processes
• Higher efficiencies – Properly designed systems can reduce energy costs
• Smooth/soft motor start – Reduces motor fatigue and early failure
• Quiet(er) operation

Challenges often associated with a VFD system:

• Excessive electrical noise – voltage spikes, electro-magnetic (EMI) and radio-frequency (RFI) noise, reflected waves potentially doubling/tripling voltage, common-mode or stray voltage, charging currents
• Failure of motor (bearings) and controller
• Failure of cable due to corona damage

Here’s why it’s important to select a high-quality VFD cable over standard cable.

Standard cable creates risk for failure related to high voltage spikes (1,500 volts or greater) and the corona discharge responsible for damaging the jacket and/or insulation. VFD cable offers the proper shielding needed to reduce EMI/RFI noise and to provide a low-impedance signal return path – preventing the common-mode or stray voltage that leads to premature cable and/or equipment failure. Smaller-sized VFD controllers are even more susceptible to charging currents. In this case, the charging current associated with a higher cable capacitance may damage the drive output. Again, installing a lower capacitance VFD cable reduces this risk.

TPC offers 2 VFD cables engineered to withstand the harsh environment generated by VFD systems:

1.        JMW  VFD Shielded Power Cable – Constructed with both foil and braid shields to withstand corona voltages up to 2,000 V. Features symmetrical ground wires to reduce the impact of common-mode-voltage noise. Ideal for applications where a longer-lasting cable is desired. 

2.        JMW VFD Shielded Power Cable (with option for Brake and Signal Pairs)– Constructed with a heavy-duty, tinned copper braid shield to protect equipment from damage caused by electrical noise and stray voltage and to provide a shield against EMI/RFI noise. Features a semi-conductive layer designed to withstand corona voltages up to 2,000 V.

Top 3 reasons to choose TPC’s solution over the commodity product: 

1.        Braid shields. TPC’s tinned copper braid shields greatly improve flexibility and ease-of-use when compared with the copper tape shield found in commodity cable, which is stiff and difficult to bend in tight spaces.

2.        Voltage/Corona ratings. TPC’s products are designed to withstand corona voltages up to 2,000 V as compared to commodity cable, which offers lower ratings may be insufficient even with a 480 V system.

3.        Jacket life. TPC’s products feature a specially compounded jacket that is designed to hold up in harsh industrial environments for extended periods of time, as compared with commodity cable, which provides a simple PVC jacket.

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Thermoplastic High Heat-resistant Nylon-coated wire (THHN)

  

Thermoplastic High Heat-resistant Nylon-coated wire THHN is the most popular type of building wire. As defined by the National Electric Code (NEC), its intended use is for construction. However, engineers also commonly use THHN in machine tools, control circuits, and some appliances. In this blog post, you’ll learn the ingredients active in THHN wire and why, in some particularly harsh environments, it may not be the best choice. And you’ll make a new friend known by the name of JMW Kabels produced by jmw.company

It’s the designation for a specific insulation material, temperature rating, and condition of use for elec

trical wire & cable. Extremely popular as an inexpensive building wire, it serves its purpose admirably and, as mentioned above, can be used for wiring machine tools, control circuits, and certain appliances. The wire comes in two types of conductors (stranded or solid), is manufactured with either copper or aluminum, and is covered in a polyvinyl chloride (PVC) insulation with a nylon jacket. Sounds great. However, its tragic flaw is that it is vulnerable to moisture and chemicals – an issue stemming from its PVC insulation and nylon jacketing:

• Nylon Jacket – Known in the field as the sacrificial layer, it is a first and short-lived line of defense. It’s also not flexible, which is typical of nylon-coated products, and so does the end-user no favors when it comes to minimizing labor and downtime during installation. 

• PVC Insulation – In chemical environments, the insulation leaks and leads to breakdown.

 What’s the fix for this? A marvelous molecular mass known as the fluoropolymer.

 The what?

The fluoropolymer, of course.

To understand the fluoropolymer and its impact/benefits, it makes sense first to visit the root term, polymer. A polymer is a large molecule composed of many repeated subunits. It plays an essential and omnipresent role in everyday life. Polymers can be the very familiar synthetic plastics that are found in households (think polystyrene). They can also be natural biopolymers that are fundamental to biological structure and function (think DNA and proteins). Polymers by design have unique physical properties including toughness and elasticity.

Fast forward to the fluoropolymer. Comprised mostly of strong fluorine and carbon bonds, it was discovered by accident in the 1930s as a result of other testing. What’s so exciting about this find? It so happens the fluoropolymer is characterized by high resistance to corrosion from most chemicals, better high temperature stability than any other plastic, and for having a low coefficient of friction. It’s also the fluoropolymer at work in the coating on your household “nonstick” cookware!

So what happens when you mix a marvel like the fluoropolymer with industrial wire & cable in hopes of saving customers from unnecessary repair/replacement plus labor and downtime?

Meet JMW Kabels

If you’re working with applications that are particularly harsh because the environment consists of humidity, heat, and chemicals, and if you have experience with the cesspool that is the inside of a conduit, allow us to introduce you to Chem-Gard™ – TPC’s flagship series of cables for chemical resistance and extreme temperature.

Chem-Gard™ features a fluoropolymer jacket and insulation, allowing it to stand up to harsh chemicals, high heat, and even extreme cold. The temperature range goes as high as 200*C. The fluoropolymer jacket also provides excellent protection from abrasion and makes the cable easy to pull through conduit. 

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Why Copper is Used in Making an Electrical Wire? | Electric Cable Manufacturers

As a part of the electrical wire manufacturing company, today I am going to tell you the secret of using copper in an electrical wire. While copper wires are increasingly becoming more popular than aluminum wire and that is why heavy duty cable manufacturers like to use copper while manufacturing wired and cables.

Why copper not aluminum?

Copper is a well – known chemical element because of its properties of high ductility, malleability and electrical conductivity. It is the most reliable and economical metal available these days at an inexpensive price. Copper is more efficient in carrying current as we all know it is a good conductor of electricity.

Copper Wire Manufacturer In Delhi

Copper is more stable as compared to aluminum, it withstands higher temperature than aluminum does. Aluminum is cheaper as compared to copper, but not durable and a good company always develops a good quality durable product which is safe for use.

Excellent conductor of electricity

Copper is an excellent conductor of electricity and no other metal can stand in front of copper in terms of electrical conductivity, not even aluminum. The reddish colored wire is capable of carrying more electric current than aluminum.

Ductile Metal

Copper is a ductile metal and it can be stretched to a good length without breaking. It is flexible metal stands well on every parameter.

Long lasting Metal

When high voltage current passes through wires, its surface temperature becomes high and not every metal can sustain this high temperature, but copper can. This makes the wires long lasting in temperature fluctuation. The wire can safely sustain adverse climatic conditions.

All and all it is a strong metal because of its strength, flexibility, durability and reliability. If the wire is not flexible, then it reduces the current carrying capacity while wiring and cause waste of energy. Other metals may cause dangerous heating which leads to hazardous accidents, but the copper wire is a safeguard against these accidents.

Best Copper Manufacturers

If you want to rewire your home, then you can buy wires and cables from JMW cables. They are one of the best electrical wire suppliers in Delhi. They only manufacture copper wires which are reliable and durable. Their products are safe and genuine, so there is no reason of causing any hazardous accidents. One can visit their official website and book cables and wires for their home, offices and schools.

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Why to Choose the Correct Size of Cable Wires | Cable Wire Dealers in Delhi

Hello people! I hope you all have read my last blog that was ‘what points we should consider while choosing cable wires’. In that blog I tried to brief you all regarding some major aspects related to selection of cable wires. I have also suggested you to purchase cable wires from the reliable brand JMW, which is one of the best cable wires manufacturers in Delhi.

Purchasing cable wires for installation purpose in your home’s appliances, internal wiring and other things is not an easy task. It requires your technical knowledge regarding same thing.

But not all of us have this type of knowledge and we install inappropriate cable wires for your home or office that proves extremely hazardous for us.
If you don’t want to face such situations, than you must know the appropriate size of cable wires and need to choose the correct size cable wires.

JMW

Why do we need to buy cable wires of right size to make sure your better performance and safety.

•    Size of the matter plays very important role. If the size of the wire is shorter than it is required than there are the chances of voltage drops that results in excess power loss.

•    If the wire size is longer than it is required than wires will heat up and there will be extreme chances of electric fire.


•    Resistance is directly proportional to the size of wire. Oversized and undersized wires have higher resistance than its watts. Keep this in mind that the lower resistance the wire has, the higher current in could handle in a better way.

Best cable wires manufacturers in Delhi

If you are really concerned about the safety of your love ones and you than I personally suggest you to never compromise with the quality of your cable wires. 

ISI Marked Cable Wires

It will prove your smartest decision if you choose cable wires by considering these small points that I discussed with you. Always choose ISI marked cable wires from JMW that is the top most company in the list of building wires manufacturers, who assures you the best quality along with the most affordable prices.  They deal in variety of wires that you can check out by visiting their official website.

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What Points We Should Consider While Choosing Cable Wire | Wire and Cable Manufacturing

Hello people, I hope you all have read my last blog that was on very important topic- ‘why copper is being used in making wires’ and found that copper is one of the best metal that can be used to make cable wires of the best and durable quality. We discussed about the best supplier of copper wires - JMW and the reason it leads the list of electrical wire cable manufacturers in India.

Wires purchasing and installing is not so easy task, you need to know some technical points, if you really want to install the best quality wires for your home. What are the factors we should keep in mind while choosing the appropriate wire cable for our home?

Let’s discuss some points that we should consider while buying cable wire:

•    Wire size and color

Size of the wire should be appropriate as if you choose wrong sized wires it could lead towards any dangerous situation related to electric fire or shock. Color is also the point to be considered like – red, yellow and blue wires for three phases, green wire for earth wiring and so on.

•    Material of the wire

There are wires of copper, aluminum and many other materials available in market but the best type of wires for your home is copper wires that is highly ductile and durable wires.

•    Wire insulation

The best kind of wires has three layers- water resistant layer, heat resistant layer and fire resistant layer.  This is the mandatory aspect to make sure the proper safety and security.

•    Don’t get tempted with low price wires

Always remember, not to get temped with the low price temptation of the companies. You cannot afford to put the life of you love ones in risk just for the sake of saving money. Buy only ISI marked wires from the top brand that assures quality.

Best wire manufacturer

Here we discussed some very general points regarding what to look for while choosing wires. But not all the wire manufacturers are providing you the ideal type of wire for your installation purpose.

Usually companies try to fool people by giving false promises, but JMW believes in doing rather than just saying. It is one of the best steel wires manufacturers in Delhi that deals in different types of wires such as- single core, double core, copper and submersible wires of reliable quality and rational prices.

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Some Myths About Electric Wires | Electric Cable Manufacturer in Delhi

Hello readers, I hope you all have read my last blog that was why copper is being used in making wires. We discussed very important features of copper wire, which makes it the best choice of metal for making wires and cables. I told you about JMW, the most trusted brand of multi core wire manufacturer. They provide all the reliable quality wires for your home and work places at the affordable prices.

Let’s move further and discuss some more relevant topics related to electricity and especially cable wires. Without knowing the proper information about anything, sometimes we make our own stories that prove myths about that topic.

Same goes with electricity; we have made so many myths about its installation and everything that are needed to be clear.
 
Some common myths regarding electricity and their actual facts are like this:

•    MYTH- Electricity current depends on the thickness of the wires only high voltage
TRUTH- this is a very common myth among people regarding thickness of wire. Whether the wire is thick or thin, same amount of current will flow from it. Only the speed of the current will be effected not the amount.


•    MYTH -Only high voltage wire can injure you
TRUTH- on contrary to this myth, it is electric current which is more dangerous for you rather than high voltage. From 100 to 200 amps current passes through the electric wire of your electric appliance that can cause serious problems and even death.



•    MYTH- power lines are insulated
TRUTH- no line is safe to touch, when you come closer to it. It is the most dangerous myth of electricity. It may be having waterproofing quality but it won’t stop the flow of current from the lines.


•    MYTH- wood is not a conductor of electricity
TRUTH- though wood is a poor conductor of electricity but it doesn’t mean that it won’t pass on the current. It is dangerous if the wood is wet and cannot help you to avoid accident as it becomes conductor in same conditions.

Best cable wires manufacturers 

 

After clearing all the myths about electricity functioning and especially wires. This point is very much clear to all of us that cable wires perform such an important work in electricity functioning, if we choose wrong wires for generating and distributing electricity, it could prove extremely dangerous. JMW is the synonym of quality in the sector of single core wire manufacturer and all the other types of wires. They are well known face among their customers for outstanding services.

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Copper Wire Manufacturer in Delhi | Why Copper is Being Used in Making Wires?

Hello readers! Last time when we interacted, I tried to brief all of you about the major injuries that can be caused by electric fire. After reading that blog, you must have understood the value of installing only the best quality cable wires in your home. JMW is the most reliable brand in making cable wires and listed on the top in list of best cable wire manufacturers in Delhi.

Copper Wire Manufacturer in Delhi

Now, in this blog I will make you all know about the reason behind, why most of the electric wires are being made with copper. Here we are going to discuss the characteristics of copper which makes it best for using as a cable and wire.

•    Copper is a ductile metal

Copper wires can be stretched according to the need; it can be made thinner more than a human hair without any damage to it.

•    It is a good conductor of electricity

No metal can compete with copper with its quality of being excellent conductor of electricity. It can carry electricity at the faster rate. Though silver can conduct electricity better than copper but it is very expensive metal to be chosen as electric wires.

•    It can tolerate high temperature

When the electric current passes through the wire, it heats up the surface of the wire too. Copper can deal with this extreme heat and even the fluctuation of temperature.

•    It has long resistance to corrosion

It works for longer durability due to its resistance to corrosion that keeps it rust free for longer time and let it work even more effectively.

•    It is Easily available

Copper wires are easily available in the market due to its great popularity and demand. JMW also provides copper wires of remarkable quality.

•    It is globally accepted

Its durability and all the positive features have made it internationally accepted metal to use as cable wire. Most of the building designs have installed copper wires for both commercial and domestic use.

Best copper wire manufacturers 

Electric Cable Wire Manufacturer

 Copper wires are being widely used in all the electronic purposes such as- generation, transmission and distribution. For such important work, quality and standard of wires can never be ignored. JMW is the best among all the electric wire and cable manufacturer suppliers. They supply variety of wires such as- single core wires, multi core wires, submersible wires and building wires. For more details visit their official website.

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