Looking for a High-quality Double-ended Switchgear for your Project? KDM has more than 10 years in Designing and Manufacturing Double-ended Switchgear

KDM Double-ended Switchgear

KDM Double-ended Switchgear is backed up by 10 years of switchgear development.

All of our equipment had set the industry standards for quality and reliability.

It maintains and extends the operating life of the equipments as it provides protection and monitor system effectively.

Our double-ended switchgear can be meet a diverse fields of application.

They can be great solution for any agricultural, building, and other industrial facility power distribution systems.

As the needs of switchgears have continuously grows, we are optimizing our range of product in order to meet the changing needs of our system.

KDM Double-ended Switchgear is design for long-term functionality.

In order to add safety and reliability on the structure, we manufacture and develop exceptional equipments.

Double-ended switchgear firmness and rigidity extend the requirements and standard of the system. Our range of equipment followed the ANSI, NEMA, and IEC standards efficiently.

By reason of, you can guarantee highly reliable equipment for your establishment.

Our Double-ended switchgear ultra-strong construction makes it operation for any for the most demanding application.

The Double-ended switchgear is made up from premium quality raw material.

It is selected according to the application where it is intended.

KDM packaging solutions ultimately provide you flexible options to suit perfectly within your area.

Avail space-saving, portable and lightweight switchgear from professional manufacturer.

Allow low maintenance cost through the life span of equipment and save cost effectively with KDM double-sided switchgear.

From simple to challenging applications, KDM has wide variety of packaging options significantly meet the space required.

Our double-ended switchgear can also be customized according to the given specifications.

The whole figure can be custom-made according to your drawing, lay out and even ideally.

Our experienced and skilful team of staff can design and developed packaging nearly meets your requirements.

With great and advanced knowledge in manufacturing, we can produce high-quality material for any project needs.

Our units fully assembled within our factory high-end machines and advanced technology.

We can develop packaging solutions that are ideal for any harsh and extreme weather conditions.

All our switchgear comes with different protection and system solution.

With more than 10 years in the business, we are able designed, engineered, and manufactured components productively.

KDM perform double-ended designing with accordance to the ISO9001 quality management system.

All units are rigorously tested during the production.

Our efficient QC team make sure every product meet the highest quality standard and for you to have best tools for your establishment.

Otherwise, if you need this item for business purposes, you can guarantee KDM can help you enhance and build-up your business revenue.

KDM is your professional double-ended switchgear manufacture in China.

Serve as your one-stop-shop solution that allows you to have stress-free shopping.

For your orders, please don’t hesitate to contact us right away!

Double Ended Switchgear: The Ultimate FAQ Guide

What is Double Ended Switchgear?

Double Ended Switchgear is electrical equipment that is found in substations.

It has both “A and B” buses, with a tie-breaker between them that can be utilized in transferring loads between them without disturbance.

Similarly, they are found in each substation. Basically, it is located on both high and low power transformers.

24kV double ended switchgear

What is Double Ended Switchgear used for?

Double Ended Switchgears meet a wide range of applications:

It is a great ideal in power distribution and transmission in buildings, agricultural production firms, and other industrial facility power supply systems.

Double Ended switchgear are used to de-energize equipment in order to clear electrical faults downstream and to allow work to be done.

It is connected directly to the reliability of the power supply.

It is important in power transformation, distribution and the protection of the electrical systems by correction of circuits, both the primary and secondary circuits.

What are the Benefits of Double Ended Switchgear?

There are various benefits of using a double-ended Switchgear.

It is:

1. Cost-effective

The following features make it cost-effective since they allow it to be used in various applications.

All these features make it cost-effective as the maintenance cost is relatively lowered as they prolong life span of the equipment.

• Flexibility: Double Ended Switchgear has fully flexible LV & MV cabling options to match certain applications.
• Forced ventilation is used to accommodate peak demand requirements and improve operating efficiency.
• Full access to all busbar connections for thermal imaging surveys and maintenance.
• It is seismically tested & certified. Therefore, can be used to various places with numerous challenges.

2. Avail Space-saving

Able to accommodate many connections.

The possibility of tripping due to the presence of three cycles makes it possible to connect numerous electrical equipment whenever there is a need.

3. Portable and Lightweight Switchgear

This eases transportation and cost reduction.

4. Adequate Supply

Distribute enough power for that can serve the existing loads and possible addition of more loads in future.

Double Ended Switchgear also performs the work in voltage transformation in an electrical system hence efficiency in power supply.

5. Safe

Double Ended switchgear can protect an electrical system, power factor correction metering circuit switching.

This, as a result, minimizes the chances of circuit breaking and low power outage.

Are there Drawbacks of Double Ended Switchgear?

Being that a Double Ended Switchgear is electrical equipment, faults can as well occur.

Although, it has both primary and secondary feeders.

Take for example, in case of a fault in a single transformer, there is a possibility that there will be an outage on the secondary loads the transformer serves.

Again, in case of a possible fault in the utility service outage, there is a likelihood that service disruption will occur in all the utility loads.

This will continue until such a time that the problem is fixed.

Double ended switchgear

How do you Specify Double Ended Switchgear?

Specifications of a Double Ended Switchgear:

• The Double Ended Switchgears can be of HV, MV and so on. In case of a high voltage, it should be of not less than75kV as certified by IEC. Also, the medium voltage should have a range of 1kV to 75Kv.
• Should be having circuit breakers that can open and close on fault currents.
• It should be industrially constructed in order to be of diverse usage (NEMA certified type).
• Switchgear should have fuses as interrupting device and be motor operated.
• Should be functional with both alternating and direct currents.
• Should be able to transmit and distribute power the in the electrical system.
• Should have isolating, load-breaking and ground (earthing) switches.
• Should have trapped key interlocking ensures safety.
• Its IEC degree of internal separation should be:

i. The terminals for external conductors separated from busbars.

ii. Functional units should be separated from each other.

iii. Busbars should be separated from functional units.

iv. The terminals of external conductors should be separated from their associated functional unit.

 Double ended switchgear

What are the Features of Double Ended Switchgear?

Some of the features that can help in specifying a Double Ended Switchgear are:

System Design for Double Ended Switchgear

A Double Ended Switchgear has features like both the primary and secondary main breakers, double-ended unit substation, tiebreaker, transformer.

The tiebreakers are used to protect, control and isolate electrical equipment.

Application of Double Ended Switchgear

The device has diverse applications. For instance, can be used in learning institutions that need a high power supply, in industries and so on.

How to Troubleshoot Double Ended Switchgear

Double ended switchgear

In case of a fault in the power supply system.

The Double Ended Switchgear can be checked since it is responsible for power transmission and distribution.

Appropriate calibration and testing of protective relays are very vital aspects of the power transmission maintenance program.

Since the devices are exceptionally sensitive, the wrong calibration can result in an unprotected system in case settings are not done correctly.

Therefore, there is a need for proper coordination in order to achieve tripping the appropriate relay hence, eradicating damages.

Therefore, the following procedures can be done in order to troubleshoot the system:

• Assembling, installation & confiscation of transformers.
• Examinations of the system.
• Analysis of fluid
• Reconditioning of the fuses.
• Problem analysis.
• Grounding of the substation after the inspections and corrections.

Is there a difference between Double Ended Switchgear and Double Ended Substation?

There is difference between a Double Ended Switchgear and double-ended substation.

The Double Ended Switchgear is found in a double ended substation.

Although, there can be three mainsubstations in a line.

Each substation has switchgears that have both “A” & “B” buses with a tie breaker that can be used to transmit loads between them without interruptions.

What are the main Components of Double Ended Switchgear?

The main components of a Double Ended Switchgear are:

1. Radial system
2. Expanded Radial system
3. Radial system with Primary Selectivity
4. Primary and Secondary Simple Radial system
5. Primary Loop system
6. Primary Selective system
7. Secondary Selective system
8. Sparing Transformer system
9. Secondary Spot system
10. Composite System

Below is a schematic diagram of a Double Ended Switchgear, illustrating the components.

Schematics of double ended switchgear

How does Double Ended Switchgear Work?

Double Ended Switchgear is designed in such a way that, when a ground fault happens, some fault current can return through the other transformer’s base connection and the neutral bus.

It is because the neutrals are connected together.

The current will eventually be visualized as a phase-neutral load and won’t be measured by the Ground Fault protection.

The ground fault protection is possible since the Double Ended Switchgear has both “A” and “B” buses that have tie breakers (secondary & primary tie breakers).

Between the two buses, loads can be transmitted without disruption.

The electrical arrangement provides redundancy and a reduced chance of downtime.

What are the Various Faults of a Double-Ended Switchgear?

Some of the faults in Double Ended Switchgear are:

• Ground Fault- an accidental contact between an energized conductor and the ground (seemingly, improper earthing).
• Improper connection of fuses.
• Fault in circuit breakers (inadvertent contact of buses “A” & “B”).

What is the Backup Protection of a Double-Ended Switchgear?

A Double Ended Switchgear has arc protection.

The arc flash protection detects electrical arcs equipment and rapidly isolates power to regulate arc energy and reduce risks.

This kind of protection is local backup protection.

It addresses a single local protection system failure or the fault of a circuit breaker to disrupt current.

This minimizes the impact to the system.

Another protection is Remote backup.

This kind of protection in a Double Ended Switchgear in the electrical system plays a role in addressing single or multiple protection failures of circuit breakers to disturb the current.

Remote backup protection can provide a safety net.

This decreases the effect of unexpected conditions caused by several protection system failures to a greater degree than that provided by the local backup protection.

How do you Test Double Ended Switchgear?

A Double Ended Switchgear can be tested just like other switchgear.

Double Ended Switchgear is like the focal point of electrical energy grids since it has busbars, circuit breakers and disconnectors.

Testing of the switchgear should be regular since its components like the circuit breakers, busbars are prone to faults.

High voltage in Double Ended Switchgear creates much stress for the materials that are used in the equipment.

Thus, insulation tests are recommended.

Whereby, a constant voltage source is deployed to the resistance to be measured and the subsequent current is read on a highly precise ammeter circuit that can display the resistance value.

The following video links can help immensely:

Double Ended Switchgear Should Conform to which Quality Standards?

The best qualities of a Double Ended Switchgear and meeting the standards of IEC and NEMA, should:

• Have optimum performance to its ideal application.
• Be of high quality, space-saving and cost-effective.
• Have backup protection (flexible enough for local & remote backup protection).
• Be durable, having long life span and extra strong stainless steel.
• Be able to perform duties like both power distribution and transmission.
• Be high-reliable, compact, lightweight cabinets for ease in transportation.

Why Invest in KDMSteel Double Ended Switchgear?

KDMSteel is a trusted manufacturer and supplier of electrical products that conform to the market’s demands, China-based company.

Our clients are assured of the best in our products due to our experience in the market, efficiency and longer operational life of our product.

Double Ended Switchgears of KDM Steel are of 100% quality-tested and certified by IEC and NEMA.

KDM can provide any kind of Double Ended Switchgears that can distribute and transmit power depending on the place of application.

Again, KDM is capable of design any of the client’s needs, affordable and high-quality product as a result of the state of art.

The designs are efficient in operation, lightweight for ease in mobility and durable.

KDM provides solution for heavy-duty projects upon placement of order.

KDM Steel illustrates high responsiveness and swiftness to clients in service delivery since they are the reason for staying in business – Contact us now.