What’s The Purpose Of Secondary Transformers?

Transformers are very important electrical component that helps transfer loads of electricity from one place to another via electromagnetic induction. The name of the device itself means that it transforms electric current transferring from one source to another modifying the voltage and current and maintaining the frequency all throughout the sourcing of the power.

How does it work?

Keep in mind that transformers do not generate electrical power but only transfers them from one AC circuit to another. This is done via magnetic coupling. In electricity generation and supply, the ability to convert voltages alternating them from low voltages to higher voltages is important because this helps in avoiding generation and distribution loses. We have voltage transformers that helps maintain this pace and make the conversion as smooth as possible.

Faraday’s Law

Utilizing this very important law, transforms are able to convert electrical energy from one value to another by linking together two or more electrical circuits using a common oscillating magnetic circuit produced by the transformer itself.

Single Phase voltage transformer

Consisting of two electrical coils of wire – “Primary Winding” and the “Secondary Winding” also known as secondary transformers, single phase voltage transformers help connect the two currents by wrapping them in a core formed from a closed magnetic iron circuit. They are not totally closely wrapped but are connected via electromagnetic field formed and induced by passing electricity from the circuit from the receiving side.

Primary vs Secondary Windings

Coils are turned around a core but are separated to distinguish which side is the receiving end and which is the delivering end. Usually, the Primary winding is the receiving end and the Secondary winding is the delivering side to the circuit where it distributes the circuit. The purpose of the secondary transformers is to take the modified current and deliver the current to the intended end. The primary winding usually has the higher voltage compared to the secondary.

How the transformer does the job

Alternating current in the core can be modified to increase the voltage of the secondary voltage in comparison to the primary. It could also decrease the voltage alternately. Usually stepping down the voltage is done when it is being distributed to residential areas where lower voltage is needed. When it is time to distribute loads to different areas in a large scale cable grid, the step-up transformers can help do the job. There is also a condition that exist where no changes in the voltage is made and it is rather called Impedance transformer used for isolating adjoining electrical circuits.

How Long Should Electrical Relays Last Before Needing Replacement?

There are days when you really face trouble starting an engine and you don’t exactly know why. Unless you are a seasoned car owner, most of the vehicles these days rely on electronic components to create functions in the car and make everything easier. The electronic control relay is among the most important parts that comprises the electronic parts of cars. If these controls fail, it is like a domino, everything falls apart.

What is a main relay system?

The electronic control in the car system that is responsible for putting power to injectors and helps run the fuel pump, as well as switching functions in cars such as lights, windows, brakes and AC’s. Although not emphasized, this electronic system in the car forms the second part of important functions aside from the mechanical parts. The relays are very much protected and would not be a cause of worry for most newly bought cars, in time these parts would be damaged from dirt, dust and grime that accumulates in the long run.

How to detect if it needs replacement?

Not easily detectable, there are still tell-tale signs that can help you identify whether there is something wrong with these parts and here are some.

  • Problem starting up the engine
  • Changes in the weather causes unexpected trouble with your engine
  • No sound coming out from the engine even if you are turning on the engine without revving it up

These are just signs but should not be taken into chance. Usually a quick trip to the mechanic can help assess whether there are really problems with the main relay control system in your car. If all the signs and the recommendation from the mechanic all coincide to be a result of the electronic system being damaged, it is now the time to replace the electrical relays present in the car.

Get it fixed

Schedule a visit to the technicians who are able to handle the job. The better the work result is, the more you can stop the car electronic system from getting more damage. A switch relay is not just the same all throughout the car system and may need lots of evaluations from technicians to ascertain the level of repair needed. You might need to consider replacing older ones even if they are not damaged yet to ensure that the parts work in line with the timeline of the newly installed electronic parts.

Great Prices, Volume Discounts: Buying Electrical Supplies Online

What to know

Buying electrical supplies is not easy. You need to be able to consider so many things prior to putting the products into your grocery basket. You also have to consider that there is an enormous number of electrical supplies to choose from. Below are just some of the most common ones:

  • Components
  • Tools
  • Wires
  • Conductors
  • Switches
  • Light bulbs
  • Energy storage devices
  • Electrical covers

The ultimate plan

A plan must take in place before going out and shopping. First, you need to think about what you will need and how much each would cost you. You would also need to consider measurements of the areas of where you will have to be working on. It is important to know the measurements for you to what kinds of electrical supplies pass your standards. You will also need to know how many you will be needing for each kind. It would definitely be helpful if you start making like a home diary or manual or something similar for it. You begin with the things you need and then the steps on what to do first, etc. You will figure it out as you go along.

The safety must never be forgotten

We all know how dangerous it is to work with electricity so we must always take into consideration the safety regulations. We also need to pick the supplies with the safest reviews and with standards passing your country’s protocol. Usually a seal a placed and when you see this seal, it would be presumed that such item passed the safety regulation standard meant for your country.

Never ever jeopardize safety because of money. Others would opt to buy the cheap ones as they think they can save and prevent shelling out more, but you also need to think about the crap this can lead to your home and your family.  If worse comes to worst, considering that it is electricity we are dealing with, being eaten by fire in your home does not become impossible.

Energy efficiency must also be a big weight

Planning, money-saving, safety – these are the three big items to consider and we are adding one more to complete the list. Energy efficiency must also be taken into consideration. You also need to think about how much it can save you money in the long run. A good example would be the LED bulb. It may sound kind of pricey at first but it is – safe, cost efficient (still cost efficient considering what it can bring to the table) and energy efficient.

Types Of Electrical Relays

There are so many types of electrical relays and aside from knowing them, it would be best if we take a glimpse of what each one does. Here are the relays:

  • Latching relays
  • Reed relays
  • Polarized relays
  • Buchholz relays
  • Overload protection relays
  • Solid state relays
  • Inverse definite minimum time relays
  • Differential relays

Latching relays

This relay is not dynamic. Even after being actuated or moved, it still remains the same as to how it was initially. Internal magnets are also known to consist in latching relays. Because of these, no power is required to maintain its positioning.

Reed relays

These relays are similar to electromechanical relays. They also produce mechanical actuation that is true for a circuit path – both open or close. However, these relays have small mass if we compare it to the electromechanical relays. They also have low mass.

Polarized relays

As the name itself suggests, they are energized by the direction of the current. They are very sensitive to such and this is why they call this relay a type of DC electromagnetic relay. The magnetic circuit in these types consist of armature and actual electromagnets.

Buchholz relays

These relays are actuated and are considered to be operated by gas. These relays are also fault finder as they call it, because of the fact that it detects fault both minor and major. You can see them mostly in conservator or transformer tanks as they are used here for protection.

Overload protection relays

Electrical motors and circuits also have their own guards and protectors. This is where the overload protection relays come in. They are specifically designed to protect. They sense it when there is a potential overload of energy being carried and automatically shuts the system or component down to protect it.

Solid state relays

Thyristors, BJTs, TRIACs, MOSFETS, IGBTs – these are the solid state components used by the solid state relays. These are used in performing and switching operations.

Inverse definite minimum time relays

The definite time current can be figured out through this relay. These relays are mostly used as the distributors of the lines and protector of it at the same time. Its operating time is not proportional or inversely adjacent which enables it to pick up its value.

Differential relays

These relays operate when there is an excess of the predetermined value. A comparison must be seen in order for it to work.

The above are the different electrical relays. A lot, really but definitely educational and informative!

What Types Of Appliances Need Primary Transformers?

A transformer – what is this?

A transformer is considered to be a converter. This is a device which takes advantage of the principles of electromagnetism and converts one voltage or current to another. It is basically made of pairs of wires that both insulated. There are two types of transformers:

  • Step up – this enables the voltage to increase
  • Step down – this does the opposite

Lastly, only DC voltages are compatible with these. AC voltages are totally out of the picture.

The importance of transformers

Transformers are very essential since 1985 as it passes voltages and currents. Without this capability, the kind of current we have and the appliances we are using now may not be compatible with any socket we try to plug it into. These are designed to help increase and decrease voltages. Those electrical devices which obviously need low voltages like cell phones, become possible to charge as the transformer ensures that the voltage decreases despite a number of similar usages. Without them, we may be electrocuted anytime.

Here are transformer symbols you may like to know:

  • Air cored transformer
  • Iron cored transformer
  • Iron cored auto transformer
  • Variac
  • Iron dust cored transformer
  • Variable inductance iron dust cored transformer
  • Iron cored transformer with screen
  • Goniometer
  • Ferrite cored transformer
  • Pre-set inductance ferrite cored transformer
  • Air cored link coupled transformer with coupling varied by a swinging link
  • Alternative symbol for an air cored transformer

What does a transformer consist of?

  • Bobbin
  • Core
  • Windings

Applications of it

  • Mains voltage conversion
  • Switch mode power supplies
  • Electrical isolation
  • Voltage conversion transformer
  • Impedance matching
  • Auto transformer

Given everything that has been mentioned, you will understand how important a transformer is. They are very useful devices and learning to work with them, or even design then can definitely be helpful to you in your daily life. Imagine a world without them, everybody may have died because of electrocution.  You may think this is a complicated science, but really, it is not. You just need to familiarize the kinds of it, the types and the parts. Who knows, in the future, you even may be able to invent your own awesome transformer. We should always be thankful to our knowledgeable scientists in the past who came up with the crazy idea of electricity to begin with and of course, to whoever decided to invent the transformer!

Have A Computer? You Can’t Do Without Surge Protection

What is surge protection?

Surge protection means using a device to protect against possible voltage spikes in AC currents or circuits. That device used to protect equipment connected to the power supply is known as a surge protector.

What is a voltage spike?

A voltage spike usually lasts from 1 to 30 microsecond and are considered as transient events or one time events. You cannot take this for granted though because no matter how short you think 1 to 30 microsecond is, you have to understand that the spike may reach to 1000 volts leaving your entire mains ruined and smoked. Spikes do not just happen on the main lines, they also occur on telephone and data lines.

The surge protection

The surge protector allows the voltage to have limits. They are designed in a way where they can block the current or shorting it to reduce the voltage that may pass thru the lines. You may think having a short is so unfortunate but if you think about it, having a short is only a way of being able to stop a larger voltage to pass through your lines and create more damages.

The surge protector devices

  • SPD or surge protection device
  • TVSS or transient voltage surge suppressor

Both are used to protect the voltages by getting them installed in the power distribution panels. They are not only used in the power distribution panels but are also used in process control systems, heavy duty industrial systems and communication systems.

The surge protection does not only protect the devices from possible voltage spikes but also from lightning strikes. It may sound crazy but lightning has the potential to actually increase voltages. We all know what a lightning is capable of but what we do not know is it can spike and increase voltages up to 100,000 volts! Can you imagine how that would affect all your appliances at home? Or even that plugged iphone for charging!

When You Need To Use Control Cable Instead Of Ordinary Wire

What is a control cable?

Control cables are wires used for instrumentation and application automation. These are wires that are considered as multi-conductor cables, and control automated processes. These cables are UL rated and can be found covered by foil shield or braided shields. Sometimes, they are covered by both. In terms of having control cables, you need to think about flexibility as control cables are often flexed continuously. Cables that are flexed may need different constructions than usual, in order to stand up to the wear and tear.

The essence of a control cable

Control cables can be used in so many ways. They can be used in:

  • Robotics
  • Power distribution
  • Assembly lines

Galaxy differentiators and advantages of control cables

There are so many advantages of control cables. An example would be being able to control and supply competitive lead times with low quantities. It can also assist in the design and perfect the application of the control cable on how it is supposed to be.

Materials used in control cables

  • Polyvinyl chloride (PVC)
  • Polyurethane (PUR)

The Technical specifications of control cables

  • Gauge – 28AWG to 2AWG
  • Voltage – 300V to 600V
  • Temperature up to 90 degrees Celsius

You will now see the importance of control cables on our lives. It is totally different from having just the usual wire used and installed as it becomes safer if control cables are used. Apart from such, it is deemed more safe due to the fact that the voltages coming in and out are controlled and limited. However, we should not also forget the consideration of the costs. Control cables are considered more costly due to what it brings to the table. The safety it brings is one hundred percent trustworthy than ordinary wires that is why, we need to cash out more than the usual. However, I still believe that no matter how costly an item may be, it cannot be paid with the safety and peace of mind you can get. The control cables can definitely keep your mind at ease even during a really cozy night.

Control cables are easy to find. You can try wandering around your favorite hardware shops or stores within your areas and you will normally find them in the electrical sections. Make sure you check the wirings in the house you have been staying and ensure control cables are placed or used.