Your Leading Automatic Switchgear Manufacturer and Supplier in China

KDM Automatic Switchgear

KDM Automatic Switchgear is one of their productions on offer.

This product is completely under supervision and has automatic outcomes.

If KDM has automatic switching equipment produced, this can have major consequences for customers.

Automatic switchgear equipment sanctions a very fast switching performance strategy.

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Automatic switchgear offered in overall measurements and proportions.

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Automatic Switchgear: The Ultimate FAQ Guide

Whether you want to upgrade or install new automatic switchgears, you need to know the:

• Specifications
• Working principle
• It’s components, and
• Available options, amongst others

This guide explores some of the fundamental aspects you should know about automatic switchgear:

What is an Automatic Switchgear?

An automatic switchgear is a device that you can use in the process of connecting and disconnecting power automatically.

It has disconnect switches, circuit breakers, and fuses which act automatically in cutting off and connecting power flow.

 Automatic switchgear

How does Automatic Transfer Switch compare to Automatic Switchgear?

An automatic transfer switch is device that you can use to change or switch different power supply sources.

For instance, you can use an automatic transfer switch to switch from the main power supply system to a generator.

On the other hand, automatic switchgears can perform the same function as an automatic transfer switch.

The major difference is in the superiority of the functions of the automatic switchgear.

It is capable of completely eliminating a specific unit from receiving power especially during the servicing period.

It can automatically disconnect and reconnect a system immediately after the problem is no longer a threat.

You can use an automatic transfer switch as part of automatic switchgear system to control power flow in a generator.

Transfer switch – Photo credits: Wikimedia

What is the Function of Automatic Switchgear?

You can use an automatic switchgear to automatically perform different things.

The major purpose is to automatically, connect, disconnect, control and isolate flow of power to different types of equipment.

It comes complete with different parts including fuses, electrical disconnect systems, and circuit breakers to assist in its main function.

For instance, you can use an automatic switchgear system in alternating between different sources of power.

This includes automatically alternating from the mains power source to a generator and back during blackout episodes.

What are the Advantages of Automatic Switchgear?

An automatic switchgear will come in handy in your system on the following levels.

· Uninterrupted Electrical Supply

You will need an automatic switchgear in-case you are running very sensitive and crucial services that require no electric interruption.

It automatically detects power interruptions and switches to the next electrical power grid.

· Efficient Switching of Power Sources

An automatic switchgear will automatically sense and switch to a different source of power without human assistance.

You don’t have to locate the manual switchgear to turn on the other power system when the power goes off.

· Ideal for Remote Access Power Supply Systems

You will use an automatic switchgear to connect to remote locations of the alternative power supply systems.

You will not need to move to the alternative power source to switch on the power incase of an interruption.

· Easy to Maintain

The cost of maintaining an automatic switchgear is cheaper as it is capable of performing self-diagnosis on the system.

All you need to do is repair the faulty system through the indication of the automatic switchgear control panel.

What are the Disadvantages of Automatic Switchgear?

Despite the numerous advantages, you will also experience a few demerits of using an automatic switchgear.

Here are some of the cons of using an automatic switchgear.

 Automatic switchgear

· Response to False Signals

Since the system is automatic, you may experience particular responses to faulty signals leading to wastage of power.

· Higher Cost of Purchase and Installation

In comparison to the manual switchgears, you will spend more money in purchasing and installing automatic switchgears.

This is because it contains more complex components and is generally larger in size in comparison to manual switchgears.

· Frequent Maintenance

Despite the low cost of maintenance, you will have to spend more time in the maintenance process which is more frequent.

In comparison to the manual switchgear, an automatic system requires frequent maintenance and servicing.

How does Automatic Outdoor Switchgear compare to Automatic Indoor Switchgear?

Just like the name suggests, you will install the automatic indoor switchgear inside the building and the other outside.

You will use automatic outdoor switchgear for outputs greater than 66kV as it requires more spacing between insulators and conductors.

On the other hand, you will use automatic indoor switchgear for outputs that are below 66Kv prompting low installation cost.

It takes very little space during installation due to the closeness of the components within.

Automatic indoor switchgears consist of metal clads and is more compact in comparison to automatic outdoor switchgears.

Automatic indoor switchgears are also safer to use in comparison to the automatic outdoor switchgear.

This is the reason why you can comfortably house it within a building.

Which Types of Automatic Switchgears are there?

There are many types of automatic switchgears that you can choose from.

Here are the different types of automatic switchgears for you to consider.

· Transfer Switch Automatic Switchgear

You will use the transfer switch automatic switchgear to switch between two sources of power.

For instance, when the power from the main grid is out, the transfer switch automatic switchgear switches to a generator.

When the power is back, transfer switch automatic switchgear will switch supply back to the main grid.

It comes in handy to prevent loss of power through unexpected blackouts.

· Transfer Automatic Switchgear

You will use a transfer automatic switchgear with the help of one’s expert hands and acts a current switch.

It comes in handy especially when there is an emergency power failure due to its adaptability, resistance, and reliability.

· Switchboard Automatic Switchgear

You will use a switchboard automatic switchgear to control the flow of power less than 600 kV between two sources.

· Portable Automatic Switchgear

This is an automatic switchgear that you can move around for fine electrical load transfer.

You can easily install it in different machines with the help of qualified engineers.

· Oil and Gas Automatic Switchgear

The oil and gas automatic switchgears depend on blasting of oil and gas to obtain and control electrical power.

It will help you with the control of the flow of currents through different electrical systems.

· Gas-Insulated Automatic Switchgear

This is a type of automatic switchgear with proper gas insulations to increase the safety of your crew.

It is small in size and conserves more space as it controls the flow of power through different systems.

· Electrical Automatic Switchgear

In case of a power drift, you will use the electrical automatic switchgear to successfully switch the power sources.

It is capable of handling and controlling the most common types of abruptions in the electrical supply system.

· Compact Automatic Switchgear

You can use the compact automatic switchgear in monitoring the safe supply of power through different electric systems.

You can get a custom compact automatic switchgear depending on your design interests.

· Circuit Breaker Automatic Switchgear

You will use the circuit breaker automatic switchgear to improve the safety of using different electrical appliances.

It cuts off the flow of power as soon as it detects that the power is in excess and might cause more harm than good.

· APT Automatic Transfer Switchgear

You can use the APT automatic transfer switchgear to supply enough power to individual cities.

It also controls and switches between different power sources to ensure continuous flow of electric power.

Where can you Use Automatic Switchgear?

You can use an automatic switchgear in different places as long as it requires proper control of electric power.

Here are some of the places where you will use the automatic switchgear.

Automatic Switchgear

· Healthcare Industry

Pharmaceutical companies and hospitals are some of the places that require uninterrupted flow of electric power.

You will need an automatic switchgear to assist in ensuring there is a constant flow of power through their systems.

· Power Stations

In a power station, you might experience power failure in some of the systems thus the need of an automatic switchgear.

It will automatically detect a problem in a particular area and switch to the next source of power supply.

It will also isolate the power system with issues pending proper review and fixing.

· Commercial Buildings and Hotels

In many commercial buildings, you will find more than one source of electric power.

You can use an automatic switchgear to connect all the power supply systems ensuring proper control of power.

Which Components make up Automatic Switchgear?

In order for an automatic switchgear to operate efficiently, it depends on various components.

It has two main components including power conducting components and power control systems.

Here are the main components that you will find in an automatic switchgear.

Power conducting components that interrupt or conduct flow of electric power including:

• Electrical Disconnect Switches
• Automatic Transfer Switches
• Circuit Breakers or Fuses
• Lightning Arrestors

Control systems which monitors, controls, and protects components of the power conducting circuit such as:

• Control Panels
• Current Transformers
• Protective Relays
• Potential Transformers
• Associated Circuitry.

Automatic transfer switch – Photo courtesy: Electrical Engineering Portal

How does Automatic Switchgear work?

Automatic switchgears came in a variety of types that have different working principles.

In this case, we are going to have a look at how the transfer switch automatic switchgear works.

The working principles depend on the principle of detection of power failure to activate the pending power source.

Usually, in many industries, the constant supply of power is often critical and requires no interruption.

In that case, these industries have alternative sources of power other than the main grid.

In case power from the main power supply grid fails.

The automatic switchgear will detect the failure.

As soon as it detects loss of power, it uses the component elements such as automatic transfer switches to switch.

It will automatically switch from the main source of power onto a back-up source of power such as a generator.

Automatic transfer switches in the switchgears depend on semi-conductor elements including SCR to switch between the power sources.

It switches between the power sources in less than 5 to 20 milliseconds thus cutting off the possibility of power loss.

It works in the most reliable and efficient manner in controlling and monitoring the sources of power.

Apart from that, as soon as the power in the main grid is back, it will automatically detect and signal the generator to stop,

It transfers the power supply system back to the main power grid.

What is the difference between Manual Switchgear and Automatic Switchgear?

The main difference between the manual switchgear and the automatic switchgear is the mode of control.

You have to control all the operations of a manual switchgear using manual switches if need be.

On the same note, you will do the monitoring of power supply and control the mechanisms in a manual switchgear.

On the other hand, automatic switchgears do not require your assistance to perform its key functions.

It is capable of monitoring and detecting the flow of power in the system and switch accordingly.

You should, however, note that the automatic switchgear also has manual controls.

In case of system failure, you will have to control all the systems of the automatic switchgear manually.

What are Automatic Switchgear Specifications?

Whenever you are looking for an automatic switchgear, you have to look at specific factors.

Here are some of the main factors that you will put under consideration.

· Power Requirements or Ratings

Different switchgears operate under different power capacities that they can easily handle.

You will have to specify on the power supply range before settling om particular automatic switchgears.

In that case you can either choose between low voltage, medium voltage or high voltage automatic switchgears.

· Design of Automatic Switchgear

With the help of the system engineers you need to come up with a proper design that will fit your switchgear applications.

· Safety of the Automatic Switchgear

The first thing that you should really take care of is the safety of the equipment.

You need to make sure that it is safe for use depending on your applications.

· Type of Automatic Switchgear

You will choose among the many types of switchgears depending on your application specifications.

You will also specify if the automatic switchgear is for outdoor or indoor applications.

How do you Troubleshoot Automatic Switchgear?

 Automatic switchgear

In the process of operating an automatic switchgear, you might experience some issues with the system.

To know the exact problem, you need to troubleshoot the machine.

Some of the problems you might experience include:

· Excess Heating on Terminal Connectors

You might experience such problems on the automatic switchgear due to lose connections and excess load.

You will rectify it by tightening terminal connectors and reducing the load suitably.

· Flashover in Insulators

This often happens due to a number of reasons including failure of support insulator.

You can sort that out by properly cleaning and maintain the support insulator.

In case it is faulty you should think of replacing it as soon as possible.

Apart from that, it can be as a result of failure of the barrier of the inter-panel insulation.

You can sort this out by properly maintaining the inter-panel insulation.

Which Safety Features do Automatic Switchgears come with?

Proper safety of the automatic switchgears requires the use of trapped key interlocking providing predefined scenarios of operation.

Automatic switch gears have insulators which will prevent any leaks from the system and permit proper electric shocks.

To improve safety, the automatic switchgear will undergo thermal imaging to have proper assessment of the system.

It will also assist in predictions of system failures before they occur thus making it safer.

What are the Automatic Switchgear Quality Standards?

In the process of purchasing an automatic switchgear, you have to ensure it meets the right quality standards.

Here are the main quality standards that you have to look at.

• ISO certification quality standards
• CE quality standards since it is an electrical equipment.
• cGMP which meets all the current good manufacturing practices
• ANSI quality standards that ensures proper design of the automatic switchgear
• IEC that will ensure tat the automatic switchgear is in proper working conditions.

What is the Voltage Range for Automatic Switchgear?

Automatic switchgears operate on low, medium and high voltage ranges.

Due to modern technological improvements, you can get an automatic switchgear operating at highs of 1,100 kV.

What is a Load Transfer Switch?

A load transfer switch is a type of electrical switch which you can use in switching load between two sources.

It will switch the electric load from one point to the next depending on the specific load requirements on the system.

There are two main types of load transfer switches which include:

· Manual Load Transfer Switch

In this case, you will affect the transfer of load from one point to another by throwing the switch manually.

· Automatic Load Transfer Switch

It has different types of sensory systems which detects and effects load transfer automatically.

How can you Test Automatic Switchgear?

There are different testing modes that you will pass the automatic switchgear through.

The testing will ensure proper functioning of the automatic switchgear and also improve safety.

First, you can type test the automatic switchgear for containment of the internal arc.

It is an important test that will determine the user safety of the automatic switchgear in switching large currents.

Thermal imaging is the second form of testing that you can perform in an automatic switchgear.

It comes in handy when assessing the state of the automatic switchgear system and prediction of failures.

Apart from that, you can also use partial discharge testing using portable or fixed testers.

Acoustic emission testing is also another type of testing where you will use surface mounted transducers and ultrasonic detectors.

It has temperature sensors fitted on the equipment which will help in testing and monitoring temperature build-up.

What is the difference between Changeover Switch and Automatic Switchgear?

You can use the changeover switch and the automatic switchgear in switching from one power grid to alternative sources.

A changeover switch performs the switching from the main power grid to the generator and back.

The main difference is in the amount of work that the automatic switchgear performs.

An automatic switchgear will monitor, control and effect changes on the power system unlike the change over switch.