Power transformers are essential components of electrical power systems, responsible for transferring electrical energy from one circuit to another with a change in voltage level. They are the backbone of transmission and distribution of electrical power and are capable of stepping up or down voltage levels as required. The ability to transmit electrical power over long distances with minimal loss is a major advantage of power transformers, made possible by high voltage transmission lines. These transformers are also known for their reliability and long lifespan, often operating for decades without requiring major repairs or maintenance.
There are two main types of power transformers, dry-type and oil-filled transformers. Dry-type transformers use air as the insulation medium, making them lightweight and compact, suitable for indoor applications where the risk of leaks and spills is low. They also have the advantage of being environmentally friendly as they don’t use hazardous materials. However, they have a lower thermal capacity compared to oil-filled transformers and may not be suitable for high-heat applications.
Oil-filled transformers, on the other hand, use oil or other liquid insulation materials to insulate and cool the components. This enhances the transformer’s efficiency and reliability, making them ideal for high voltage power transmission systems and industrial applications where a stable power supply is essential. Despite being larger and heavier, oil-filled transformers have a higher thermal capacity and can handle higher levels of heat. The hermetic sealing of the transformer helps to prevent contamination and maintain a controlled environment inside.
When it comes to choosing between the two types of transformers, oil-filled transformers are the preferred option for energy efficiency, cost savings, and recyclability. They are designed to operate at high temperatures, reducing energy losses and increasing efficiency. They also have a longer lifespan and can be recycled, making them an environmentally friendly choice.
On the other hand, dry-type transformers are safer for interior operations as they don’t contain hazardous materials and are less likely to cause damage in the event of a leak or spill. They are also lighter and more compact, making them easier to install and handle.
In conclusion, the choice between dry-type and oil-filled transformers depends on the specific requirements of the application. Factors such as energy efficiency, cost savings, recyclability, safety, and ease of use should be considered to determine the best option.
below are some supplier for reference:
ABB Sakti Industri, PT
Manufacturer Power Transformers
Contact: Phone: +62 21 2551 5555 Fax: +62 21 2551 5566
Website: www.new.abb.com
Bambang Djaja, PT
Manufacturer power transformers under the “B&D” brand; with capacity ranging from 15 KVA up to 40 MVA with voltage ratings up to 150 KV.
Contact: phone: (62 21) 29032778 (hunting) Fax: (62 21) 29032781 Email: sales@bambangdjaja.com
Website www.bambangdjaja.com
CG Power Systems Indonesia, PT
Manufacturer Power Transformers upto 250MVA and 275kV.
Contact: Phone: (62 21) 8230430/36 Fax: (62 21) 8230268/42/22
Website: www.cgglobal.com
Lucky Light Globalindo, PT
Manufacturer transformers under the “Lucky Light” brand, with capacity ranging from 100kVA up to 20000kVA with voltage ratings range 20kV – 33kV
Contact: Phone: (62 21) 82483874 Fax: (62 21) 82483929 Email: marketing@luckylight.co.id
Website: www.luckylight.co.id
Sintra Sinarindo, PT
Manufacturer power transformers under the “Sintra” brand
Contact: Phone: (62 21) 8974489 (62 21) 8974492 Fax: (62 21) 8974491
Website: www.trafosintra.com
Siemens Indonesia, PT
Manufacturer Power Transformers
Contact: Phone : (62 21) 27543000 Fax: (62 21) 27543333
Website: www.siemens.com
Schneider Indonesia, PT
Manufacturer Power Transformers
Contact: Phone: (62 21) 1500055 ; Email: customercare.id@schneider-electric.com
Website: www.schneider-electric.com
Trafoindo Prima Perkasa, PT
Manufacturer transformers under the “TRAFINDO” brand, with capacity ranging from 25kVA up to 35000kVA
Contact: Phone (62 21) 3850703, (62 21)3517113, 3861865, 3451384 Fax: (62 21) 3850702 Email: marketing@trafoindonesia.com (Sales Information)
Website: www.trafoindonesia.com