Guide to Understanding Switching Systems

On March 26, 2019 / Hybrid Relay / Leave a comment

Many electrical, as well as electronic gadgets, use different types of relays to function correctly. Depending upon the type of equipment, the most suitable switching methodology needs to be used. In layman’s terms, a relay acts as a switch and changes the state in which a device continues to exist. All appliances including your smartphone, your laptop, and even your air conditioning require specific relaying equipment.

A Guide To RF Switching Systems

Classifications and categories

Auxiliary relays and protective relays are two of the essential types depending upon the application of the switching system. However, the classification of relays is done keeping in view the principles under which they operate. Solid state relays and electromechanical relays are two of the most prominent ratings. In recent years, the application of hybrid relays has become vital. A hybrid relay is a combination of solid state relays and electromechanical relays. It is the latest addition to the technology. It has all the benefits that an EMR and an SSR can provide.

Improvement is the name of the game

Initially, electromagnetic relays were most widely used on a large number of electronic devices. The operating coil of this type was crucial to the overall operation. With time, many problems erupted because of the wear and tear that electromechanical relays underwent. Even now many electronic devices have electromagnetic relays. But, power consumption is one of the significant issues associated with EMRs.

Manufacturers of electrical as well as electronic gadgets started using solid state relays in place of EMRs. SSRs did not need a lot of energy to operate correctly. At the same time, unlike electromechanical relays, they did not make a lot of noise. But, solid state relays also had a considerable number of demerits.

If the device required more than a hundred amperes of power to function, then solid state relays proved futile. Hence, scientists took measures to combine the positive aspects of electromechanical relays and solid-state relays. Very soon hybrid relays took over the world of electronics leading to the development of high quality and low energy consuming gadgets.

Excellence was never far away

Hybrid relays have the power of EMRs combined with the efficiency of SSRs. The hybrid principle can be used in creating switching systems of different kinds. Thermal relays and reed relays are also popular with many manufacturers of electronic gadgets. However, they can cater to the needs of very few devices. As a result of this, their popularity is nowhere near the efficiency of hybrid relays.

Get the Best of Both Worlds In Hybrid Relays

On March 5, 2019 / Hybrid Relay / Leave a comment

Traditionally, electromagnetic switches were used in a large number of devices. They were prone to a lot of friction and wore out pretty quickly. A lot of maintenance at frequent intervals was needed to make sure that they kept on functioning correctly. Electrical devices which used electromechanical relays consumed a lot of power. At the same time, switching between AC and DC load used to be a time-consuming affair.

How Hybrid Relays Can Simplify Compliance ?

SSRs changed the landscape

The advent of solid state relays was a big step towards the eradication of all problems that were posed by electromechanical switches. But, solid state relays had substantial limitations which prevented their use in most electrical gadgets. If the device needed more than hundred amperes power, the solid-state relays proved to be ineffective. So, engineers continued using electromechanical switches when designing high power equipment.

Necessity is the mother of invention

Since both solid-state relays, as well as electromechanical relays, proved to be deficient in several ways, an optimum solution was always around the corner. As a result, hybrid switches arrived on the scene and made the lives of millions of people across the world more accessible. Hybrid relays make use of elements from both static as well as magnetic switches.

Why Are Hybrid relays practical?

A hybrid of SSRs and EMRs can function even when a lot of power is used by specific equipment. At the same time, hybrid relays can make sure that the switching between loads does not take a lot of time. Unlike Electromechanical switches, they are not prone to friction, and hence they can last for substantial periods without any wear and tear.

Hybrid relays for all times

The best thing about a combination of solid and magnetic switches is that application has widened significantly. Energy consumption by hybrid switches is much less than the power which was used by electromechanical relays. They can work efficiently not only on DC but also on AC devices. But it is crucial that the aptest kind of hybrid relays is used to get the best results.

Wide range of applications

High-quality hybrid switches can be useful even in case of devices that require zero voltage switching. Hybrid switches make very little noise when they operate. As a result, their power consumption is reasonable. It makes them cost-effective. It would be apt to say that, hybrid relays they have all the benefits of solid state relays along with the positive effects of electro mechanical switches.

Read More : All you Need To Know About SSRs

All You Need to Know About SSRs

On February 25, 2019 / Solid State Relays / Leave a comment

Their acronym SSR popularly knows solid state relays. They are used to switch loads on AC and DC circuits in a large number of electrical gadgets. The job of solid state relays is similar to the part played by electromagnetic switches. But there are some vital differences between these two. An electrical, as well as a mechanical engineer, must know about these points of distinction.

What are the Things to Know Before Learning SSR?

Getting the hang of the basics

It is also vital to understand which of these should be used in a specific scenario. A solid-state relay becomes crucial when voltage is applied on a device externally. Semiconductors play a vital part in the proper operation of solid state relays. Switching of currents will not be possible in the absence of high-quality conductors.

Speed is essential

Switching between loads becomes quick and easy when a machine has robust state relay technology. An electromagnetic relay never has the same rate of operation that its solid-state counterpart can provide. So, engineers prefer the use of solid state relays when the size of the machine is not substantial, and the operation needs to be done quickly.

EMRs are useful too

When pieces of equipment use a lot of power, opting for electromagnetic relays will be the better option. Solid state relays cannot endure currents higher than a hundred amperes. So, the arrival of SSRs has not obliterated the use of electromagnetic relays, but it has carved out a niche for itself.

Solid state relays are more dependable

Solid state relays do not have any visible wear and tear even after they are used for prolonged periods. If you choose a solid-state relay for switching loads in a machine, you can rest assured that very little maintenance will be needed. On the other hand, the resistance posed by magnetic switches is substantial. You will need to be ready for repairs at regular intervals.

Why has the popularity of EMRs decreased?

Electromagnetic relays are bulky, and they take up a lot of power to operate correctly. Hence, the operational cost of electromechanical relays is more than solid state relays. As already stated, solid state relays function swiftly, and they make very little noise when they are at it. It is because of these qualities that a large number of mechanical as well as electrical engineers have started using solid state relays in recent years. It is highly probable that this trend is here to stay.

SSRs as High-quality Switches In Machines

On February 10, 2019 / Solid State Relays / Leave a comment

Solid state relays have made the lives of many technicians and electrical engineers across the world a lot more comfortable. Almost all mechanical engineers come across a situation when controlling high Voltage load becomes very tough. If the power of the circuit is low, then the case can get out of hand if you do not control it properly. Stable state release can come to your rescue in such a scenario.

All about Solid State Relays

Isolation of many components

They will allow you to form isolated boundaries between the areas where the power is excessively high and the parts with lower energy. Opting for magnetic relays may not always be the smartest way to take things forward. Electromagnetic relays are costly, and their maintenance is a very time making process. However, they also have some critical applications for Electrical as well as mechanical engineers.

The pros of solid state relays

You must bear in mind that the output format of SSRs is straightforward. Using solid state relays to get the results that you want is a natural process. If you have some experience, then you can get the job done without a lot of effort. But you must understand the methodology behind solid state relays before you start using them. The kind of SSR which is suitable for a machine depends on several vital factors.

In-depth analysis is mandatory

An electrical or mechanical engineer must select the most appropriate SSR keeping in view features. If you choose a general purpose SSR, you might make things tough for yourself. Whether you want to switch direct current load or an alternating current load will help you decide the most suitable solid-state relay.

Understanding all the basic principles

You must have complete knowledge about the various components of solid state relays. At the same time, you must know about all the different types of SSRs. DC60 series is one of the most popular solid-state relays. Exceptionally few solid-state relays can be useful for DC as well as AC. If your machine utilizes both of these types of current, then MOS solid state relays can be an ideal option for your device.

It is evident that opting for a ‘horses for courses’ strategy will serve you very well when you are dealing with SSRs. Most experts suggest that solid state relays are better than electromagnetic switches because they operate without making any noise. SSRs are lightweight. You can purchase them at a lower cost.

The Excellence of Electromechanical Switches

On January 10, 2019 / Electromagnetic Relays / Leave a comment

Advancement of technology does not always mean that the equipment which was used earlier has become redundant. In the case of EMRs, this statement is correct. Relay technology has undergone substantial changes in the past 3 to 4 decades. The advent of specialized modern pieces of equipment has changed the landscape completely.

Electromagnetic Magnetic Industrial Switches

Class is permanent

Electromechanical relays are still in demand because of the full range of practical applications for which they can be utilized. Whenever technicians want relays that can serve them in case of general needs, they opt for electromechanical relays.They are also known as electromagnetic switches because they use energy in this form to operate.

Transmission of signals using EMRs

The use of electromechanical relays has not undergone any decrease despite the arrival of solid state relays. The ability of electromechanical relays to transmit signals efficiently has allowed them to stand the test of time. Their durability also makes them a viable option for most technicians. When there is a need to test automated equipment, all expert mechanics and engineers prefer using electromechanical relays.

EMRs are forever

It is safe to say that EMRs are here to stay for a long time to come. You must bear in mind that the resistance, as well as the capacitance of EMRs, make them unique in many ways. Their efficiency at switching loads allows them to be used in many machines. Operating electromechanical relays is slightly complicated, but their effectiveness makes them accessible.

SSRs vis-a-vis EMRs

The capacitance of SSRs is nowhere near the value possessed by electromechanical relays. Their resistance is also not up to the mark for many purposes. It is evident that solid state relays are valuable in their way for a small range of utilities. An expert will always select the most suitable equipment keeping in view the requirements of the project. So, you must understand that comparing them will not give any practical solutions.

Apt tools for suitable times

The truth is that their applications are separate with some common elements. The aim of an electrical engineer should be to make optimum usage of both of these excellent pieces of equipment rather than attempting to draw parallels between them. SSRs are different switches because they provide ease in operation. They allow technicians to switch the load in minimal time. EMRs are brilliant because of their efficient modus operandi even though they take more time to finish switching.

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