Buck Boost Transformers

Working Principle of a Buck Boost Transformer

In this transformer, the primary and secondary windings are isolated. They are coupled only through mutual magnetic induction. However, in some models, the windings may be connected to facilitate the input voltage adjustment to meet specific application requirements. To buck the voltage, the transformer removes some portion of the primary voltage by connecting the windings in such a way that the secondary voltage opposes the primary one. On the other hand, when boosting voltage, some portion is added to the primary voltage, wherein the secondary voltage aids the primary voltage. When the AC current flows through the primary winding, it generates an electromagnetic field. This induces a voltage in the secondary winding to adjust the voltage through electromagnetic induction.

Benefits of Using Buck-boost Transformers

 
Buck-boost transformers are highly efficient in adjusting voltage levels. Here are some benefits of our buck – boost transformers.

• Low-voltage applications: Our transformers are designed to supply power to low-voltage lighting circuits, control panels, and systems requiring 12, 16, 24, 32, or 48 volts.
• Voltage stabilization: They ensure consistent voltage supply, thus reducing the possibility of fluctuations. This protects sensitive electrical and electronic devices from damage due to excess or low voltage, thus increasing their lifespan.
• Energy efficiency: They are highly efficient and consume less energy during voltage adjustment. Also, they make the concerned devices efficient by reducing overall power consumption.
• Flexibility: These transformers are super flexible, and they can make even slight or modest changes to voltage levels, unlike some standard transformers.
• Compact design: These transformers are compact and hence can be fitted in constrained spaces.
• Reliability: They are designed to handle varied voltage levels, operate in harsh environments, and offer operational stability to the applications, thus reducing the possibilities of damages, power outages, and more.
• Cost effectiveness: They are appropriate for small-voltage corrections, and less expensive than full-size transformers. They also require less maintenance.
• Customization: We offer custom options to meet your specific requirements.

Tips to Choose Buck Boost Transformers

 
Several factors must be carefully considered when choosing buck-boost transformers. The following tips will help you make the right decision.

• Knowing your application requirements, such as voltage limits, physical space available, operating environment, and more, is key to selecting the right transformer.
• Whether for single- or three-phase applications, the phase and frequency must be the same for both load and supply.
• Identify your requirements for input and output voltage and the adjustment range. The transformer must provide buck and boost within the required range. You can measure the supply voltage with a voltmeter and check the load equipment to determine the exact voltage requirements.
• Consider environmental parameters such as temperature, humidity, ventilation, etc. Check the IP rating of the transformer model to find its compatibility to these parameters.
• Ensure the transformer is UL and IEEE certified. Check the other safety and compliance aspects vis-à-vis your application requirements.
• Check for the physical aspects such as mounting options, space available, and if the installation pattern supports the weight of the transformer.
• Check the power range and load KVA, aside from insulation class, and frequency which is mostly around 50Hz-60Hz. This frequency must match with the load.
• Always consider future expansions, changes in voltage range, upgrades, and so on. Hence, ensure the transformer model is scalable and can accommodate future expansions.
• Consider the noise levels that can be tolerated. You can choose a transformer that functions quietly.
• These are primarily dry type transformers, wherein you need to check for isolation type, ventilation, and encapsulation aspect. Also, check the enclosure and its NEMA rating.
• Choosing buck-boost transformers made by reputed manufacturers such as SolaHD has its own benefits in terms of operational efficiency, warranty, and technical support.

Applications of Buck Boost Transformers

 
Here are some application areas of buck-boost transformers.

• Air conditioners
• HVAC systems
• AC motors
• Industrial integrated systems
• Lighting systems
• UPS and inverter applications
• Pumping units
• Telecom applications
• Electric vehicles
• IoT devices

Frequently Asked Questions on Buck-Boost Transformers

Can a buck-boost transformer handle high power loads?

Buck-boost transformers are conventionally designed for low to medium power loads, and can adjust extremely small voltage values as well. For high power applications, you can use toroidal transformers.

What is the difference between buck and boost modes?

• Buck Mode: The transformer reduces the voltage from the primary to the secondary side.
• Boost Mode: The transformer increases the voltage from the primary to the secondary side.

Do buck-boost transformers provide electrical isolation?

While they are built as isolation transformers with separate primary and secondary windings, they are not designed for circuit isolation. Buck-boost transformers may offer some level of isolation; however, there are other types of isolating transformers for this task. Buck-boost transformers are designed to adjust voltage levels within a system, wherein they may or may not offer circuit isolation.

Are buck-boost transformers suitable for outdoor use?

Buck-boost transformers can be used outdoors if they are properly enclosed and protected against environmental factors like moisture, dust, and temperature extremes. Ensure the transformer has an appropriate IP rating for outdoor applications. Also check the NEMA rating for enclosures. We offer buck-boost transformers for outdoor use.

How to install a buck-boost transformer?

You must follow the manufacturer’s guidelines when installing a buck-boost transformer, here are some basic installation steps.

• Ensure proper ventilation and fix a mounting space.
• Connect the primary and secondary windings according to the required voltage adjustment (buck or boost).
• Follow the manufacturer instructions and local electrical codes.
• Consult a certified electrician if necessary.

Can a buck-boost transformer be used with a generator?

Yes, a buck and boost transformer can be used with a generator to adjust the output voltage to match the requirements of the connected equipment and to ensure stable and suitable voltage levels.

How to maintain and inspect buck and boost transformers?

Like any other equipment, these transformers need regular or periodic maintenance. It is best to refer to maintenance guidelines mentioned by the manufacturer. However, a basic visual inspection will help you identify any probable damages. Here are some pointers.

• Perform regular visual inspections to identify physical damage or wear quickly.
• Check the connections for tightness and integrity.
• Ensure proper ventilation and cooling to prevent overheating.
• Perform periodic testing to verify the correct voltage output.

At Bruce Electric, we offer new, reconditioned, and used buck and boost transformers for sale from different brands. Click on RFQ Now beside each transformer description.