Difference between soft starter and VFD

Soft starter and variable frequency drive called VFD.  A soft starter is a regulator actually for motor statting and it just changing the output voltage. VFD is for AC motor speed control it is not only changing the output voltage but it will also change the frequency. VFD has all the features of soft starter but the price is much more expensive than the soft starter and its structure is much more complex. There are some basic differences between these two soft starters vs VFD.


What is a soft starter?


As we know that, a soft starter is a device that starts motors with reduced power supplied at the start-up reducing the power reduces potentially damaging electrical and mechanical shocks on the system.


What is VFD?


Before we learn about VFD first let us understand what is the full form of VFD? 
VFD stands for variable frequency drive, It is a type of motor controller that drives an electric motor by varying the frequency and voltage supplied to the electric motor. A basic VFD system generally consists of an AC motor, it is a controller and an operator interface.

Difference between a soft starter and Variable frequency drive :

  • Soft starters are used to start and stop a motor smoothly, Variable frequency drives are used to start and stop and control a motor throughout its operation.
  • Soft starter most of the time bypassed as soon as the motor reaches its full speed, but in variable frequency, drives to control a motor throughout its operation.
  • A soft starter is not harmonics while in VFD is harmonics are injected to the mains, hence additional filters should be used.
  • Soft starter saves less energy throughout is life while VFD can save more energy throughout is life.
  • VFD is more expensive as compared to the soft starter.
  • VFD has more space needed as compared to the soft starter.

Where we have to use soft starters:
  • In an application where speed control is not essential.
  • In low and medium torque applications.
  • Reduce wear and tear during start and stop.
  • In an application where the initial cost is low.

Where we have to use a variable frequency drive:
  • Variable frequency drives are used in applications where complete control over the speed is essential.
  • In high torque applications.
  • Where the initial cost and size are no problem.

Advantages and disadvantages of ethernet

Ethernet cable is conceptually simple and easy to install, it supports quick transfer speeds and fairly affordable. Ethernet cable is difficult to troubleshoot and requires a lot of effort to reconfigurable once installed. Here this post gives information about benefits or advantages and drawbacks or disadvantages of ethernet to better understand this topic.

Benefits or advantages of ethernet

  • To form an ethernet, we do not need much. It is costless as compare to other systems of connecting computers.
  • It does not require any switches or hubs.
  • Mainatenance and administaiton are simple.
  • Ethernet is easy to maintain and troubleshoot the ethernet network.
  • All the nodes have the same privileges. It does not follow client-server architecture.
  • With the gigabit network, the user can transfer data with the speed of 1-10 Gbps.
  • The cable used to connect systems in ethernet is robust to noise and hence the quality of the connection is maintained without any degradation.
  • As it is robust to the noise, the quality of the data transfer does not degrade so the data transfer quality is good.

Drawbacks or disadvantages of ethernet

  • It offers a nondeterministic service.
  • It does not hold good for real-time applications as it requires deterministic service.
  • The ethernet network does not prioritize traffic in order to support an effective class of service. 
  • As it is designed to support real-time voice and video traffic initially it works best for traffic consisting of data solely.
  • The gigabit ethernet is still not in use at many places and hence will take time for the common man to have benefits of this ethernet version.
  • As the network cannot set priority for the packets, it is not suitable for the client-server architecture.
  • The 100 base - T4 version requires 4 pairs of wiring to support data transfer. Moreover, it can not support full-duplex data communication mode.
  • It provides connectionless communication over the network.
  • After receiving a packet the receiver will don't send any acknowledge message.
  • If you are using it for interactive applications, you have to require some dummy data to make the frame size 46B which is mandatory.
  • It is not suitable for traffic-intensive applications.
  • Ethernet is to be difficult to troubleshoot what cable or node is uses in the network causing an actual problem.


We hope that you have got a better understanding of this concept. Furthermore, any quires regarding this concept or some electrical and electronics projects give your feedback in the comment section below. 

Advantages and disadvantages of analog multimeter


Analog multimeter was the first of its type, but due to the latest technological development after the development of digital multimeter, nowadays it is of less use.  Here this post we are going to discuss the advantages and disadvantages of analog multimeter to better understand this topic.

Benefits or advantages of an analog multimeter


It is cheaper compared to digital meter 

When you have to start with some benefits of analog multimeter, we have to start first with the price. When you have to look at the digital multimeter you should always try to buy digital multimeter but make sure that the budget of digital multimeter and analog multimeter are not the same. An analog multimeter is cheaper than a digital multimeter and that's why people still use analog multimeters.

Response quickly to the measurement 

The response time of the analog multimeter is pretty and quick. Response time never is an issue. Although you have to read the parameters manually, you do not need to wait for the result to appear. There are lots of users are more comfortable with an analog multimeter.

No batteries are required 

This is one of the best advantages to compared to all, It is a good thing about in analog multimeter is that it does not require any battery, except when you have to need to measure resistance but digital multimeter work with batteries. 

Drawback or Disadvantages of an analog multimeter


Required manual reading parameter

Analog multimeter requires manual reading of parameters from the scale which is cumbersome, unlike digital multimeter.

Movement is slow

The pointer movement is too slow, can't be used to measure the voltage with frequencies higher than 50 Hz.

Inaccurate result 

The result is not accurate compared to a digital multimeter. The inaccurate results are caused due to three types of errors like improper counting on the scale, improper range setting, wrong setting on AC/DC.

Lack of advanced features

Analog multimeter works pretty well. However, unlike digital multimeter analog multimeters lack analytical power. That means analog multimeter does not have advanced features. The advance measurement such as frequency, impedance, waveform analysis, etc which are commonly measured by using a digital multimeter.

Size and cost 

Analog multimeter are bulky in size and they are costly.

Robustness

Analog multimeter uses a needle that is rotated by a magnetic field. It gets damaged if the meter gets dropped by mistake.


Related to this above post:

Advantages and Disadvantages of a digital multimeter


We hope that you have got a better understanding of this concept. Furthermore, any quires regarding this concept or some electrical and electronics projects give your feedback in the comment section below. 

Difference between batten and conduit wiring

Definition of batten wiring and conduit wiring


What is Batten Wiring:


In this wiring system, a wooden batten system is must be used. All wire cable is installed on the smooth batten with a steel clip and steel clip are installed on the surface of batten to equal the wooden batten is installed on the wall of the width with the help of a 5-inch screw. The material must be used in CTS or TRS cable and the pin is to be used. the batten available size such as 15,
20,25,40  mm.

What is conduit wiring:


Conduit wiring is a wiring system where the cables are enclosed in some metal or plastic tubes. The conductors have insulation which is rated at the voltage required but it gives no mechanical protection.


Difference between batten wiring and conduit wiring:


Batten Wiring:


The material used in batten wiring:

  • CTS or TRS cable
  • Stright teak wooden batten
  • Brass pins
  • Tinned brass link clip


Conduit wiring:


The material used in conduit wiring:
  • VIR or PVC insulated cables
  • GI wire of 18SWG
  • Coupling
  • Screw
  • Rigid offset
  • elbow
  • Locknut
  • 2 hole strap
  • There are two types  1.is a metallic conduit and 2. nonmetallic conduit 
  • Class A type of conduit: thin layer steel sheet low gauge conduit
  • Class B type of conduit: a thick sheet of steel high gauge conduit
  • Non metallic conduit: 13, 16.2, 18.75,20,25,37,50 and 63 mm PVC conduit

Cost:


The cost of batten wiring is low as compared to conduit wiring, conduit wiring is very costly.

Life:


As compared to batten wiring, conduit wiring life is very long.

Addition OR alternation:


In batten wiring, the alternation is very easy while conduit wiring alternation is very difficult.


Procedure:


The procedure of conduit wiring:

This type of wiring is not easy to install. On the surface of the wall or ceiling conduit pipes are attached with the help of 2 holes strap and base clip at a rectangular certain distance. Next, GI wire is must be used to lay down the wires through the conduit pipe.

The procedure of batten wiring:

Group of single or double or three core cables is must be used to lay on the straight teak wooden batten. The cables are held with the help of a tinned brass link clip or uses of buckle clip. Brass pins are used to fix the buckle clips on the wooden batten. Buckle clip is basically fixed brass pin on the wooden batten at an interval 10 cm for horizontal runs and 15 cm for vertical runs.

Reliability:


The reliability of conduit wiring is very good as compared to batten wiring.

Field of applications:


Application of batten wiring: Office, commercial and residential building, etc.
Application of conduit wiring: Workshop, mainly for down, Public building, etc.

Advantages and disadvantages of wooden casing and capping wiring

Wooden casing and capping wiring systems are suitable for low voltage domestic installation and here we are using VIR or PVC wires are used. This wiring is used for V-shaped grooves and usually two in number. These wires are laid in grooves and the casing is covered by a rectangular strip of the same width, that called capping and that was fitted by means of a screw. Capping and casing are made up of teak wood.


Advantages of the wooden casing and capping wiring:

  • It is a long life if properly done and varnished.
  • Good and neat appearance than cleat wiring.
  • It is easy to install and rewire.
  • Easy to inspect by opening a capping.
  • It provides good insulation as a conductor is a good distance apart.
  • Cheap is costly as compared to lead sheath wiring and conduit wiring.
  • Free from the trouble of condensation so advantages in tropical countries.

Disadvantages of the wooden casing and capping wiring:

  • Wood is inflammable and there is a risk of fire.
  • Not suitable for wet areas.
  • Need to varnish for maintaining safe operations.
  • This type of wiring can be used only a surface cannot be consed of plaster.

Advantages and disadvantages of conduit wiring

Conduit wiring is a system where the cable is enclosed in metal or some plastic tubes. The conductor has insulation which is rated at the voltage required but gives no mechanical protection. Just because of cable are enclosed in a tube the circuit can be rewired ore altered as required and additional points added reasonably easily. Here this post gives some information about the advantages and disadvantages of better understand this topic.

Advantages of conduit wiring:

  • It is waterproof wiring systems.
  • It has a long life.
  • It is a good appearance.
  • Alternation is possible.
  • It is reliable. 
  • It is durable and very popular systems.
  • PVC conduits offer a highly resistant against corrosion.
  • It will not support combustion.
  • There is no chance of fire.
  • No risk of electric shock.
  • No risk of mechanical wear and tear in a fire in case of metallic pipes.
  • Maintenance is easy.
  • It provides protection against moisture in the atmosphere.
  • The damage of cable can be replaced easily.
  • The conductor is safely secure for moisture.
  • Conduit provide protection aganist  chemicals.

Disadvantages of conduit wiring:

  • It is difficult to install.
  • The fault-finding process is very difficult.
  • More time is required for the installation of this wiring system.
  • The cost is high.
  • Risk of electrical shock.
  • installation is not easy and simple.
  • Very hard to find a defect in the wiring.
  • Very complicated to manage additional connections in the future.
  • Is burn inside any side conduit cause insulation of cable to be damaged.
  • In the case of steel conduit, It is an expensive system compared to other wiring systems.
  • The beauty of this wiring system compared to a concealed system is less.
  • In the case of a PVC plastic conduit of mechanical injury is possible.
Explore more information:


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Advantages and disadvantages of batten wiring

In this wires insulated wires are run through the straight teak wooden battens, The wooden battens are fixed on the ceiling or walls by plugs and screws. The cables are fitted onto the battens by using tinned brass links clips. This wiring system is simple and cheap as compared to other electrical wiring systems. Here this post gives information about the advantage and disadvantages of batten wiring to better understand this topic.

Advantages of batten wiring:

  • This is a simple wiring system.
  • Batten wiring system is a better long life.
  • Durable and have good strength.
  • The chance of leakage current is very rare.
  • It looks very beautiful.
  • Wiring installation is easy and simple.
  • Alternations are possible.
  • It is installed very quickly.
  • It is cheap in material costs.
  • Appearance is better.
  • Customization is easy.
  • It is strong and long-lasting.
  • Less chance to leakage current.
  • The fault is found very costly.

Disadvantages of batten wiring:

  • The risk of fire is possible.
  • After maintenance of the beauty of this wiring system is nor maintain. 
  • It is installed only for 220V.
  • The risk of mechanical injury is possible.
  • Extra cable is used for a wiring system.
  • The weather effect directly attacks this wiring system.
  • It is not suitable for outdoor wiring.
  • Some of the Heavy wires are not recommended for this wiring scheme.
  • Humidity, smoke, steam, etc directly affect wires.

We hope that you have got a better understanding of this concept. Furthermore, any quires regarding this concept or some electrical and electronics projects give your feedback in the comment section below.