Australian Power Equipment are the Agent in Australia for P.T, Bambang Djaja.
PT. Bambang Djaja, commonly known as B&D Transformer, stands as the premier manufacturer of Power, Distribution, and Instrument Transformers in Indonesia. With its establishment in 1985 in Surabaya, Indonesia, the company has consistently excelled by embracing the latest technology, employing cutting-edge machinery, and cultivating a team of highly-qualified professionals to meet the ever-growing demands for transformers both within Indonesia and on a global scale.
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PT. Bambang Djaja holds several certifications, including ISO 9001:2015, ISO 14001:2015, ISO 45001:2018, and SMK3 Kemnaker, demonstrating its commitment to quality, environmental responsibility, occupational health, and safety. B&D Transformer's products are certified by reputable organizations such as PLN PUSLITBANG, BP MIGAS, ASTA, and ATEX, further cementing their reliability and compliance with industry standards

Why We Choose FR3® Natural Ester Oil
At Australian Power Equipment, we prioritise sustainability and safety without compromising performance. That’s why we use FR3® natural ester oil, a soy-based, biodegradable alternative to traditional mineral oil, in our transformers. With a proven track record of over 25 years in more than three million transformers, FR3® is the trusted choice globally for high-performance, environmentally responsible dielectric fluid.
This 100% renewable fluid offers exceptional fire safety, increased loading capacity, and extended equipment life. It’s non-toxic, carbon neutral, and completely biodegradable—making it ideal for sensitive environments like mining sites, infrastructure corridors, and renewables projects. If there’s ever a spill, there’s no environmental risk—just another reason we’re proud to stand behind FR3®.
👉 Read more about FR3® and why we trust it HERE
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Power Transformer
Transformer is designed in substation and generating plant. This power transformer is manufactured following the specification require by customer according to the application and standard up to 275 kV, 500 MVA (3 x 167 MVA).

Cast Resin Transformer
Also known as dry-type or capsulated transformer. The insulating and cooling media is epoxy resin and air. Designed for low maintenance and has a much higher fire safety rating. Indoor and outdoor enclosure is available as an option

Instrument Transformer CTVT
Indoor CT & VT as Instrument transformer used for metering and protection. Available for voltage system up to 36 kV, SINGLE or DOUBLE pole (for VT), and BLOCK or RING (for CT).
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Outdoor CT & VT as Instrument transformer used for metering and protection. Available for voltage system up to 36 kV, SINGLE or DOUBLE pole (for VT)

Distribution Transformer
Transformer designed to be used in general applications. It can be totally oil filled or with N2 gas cushion or can be equipped with conservator as air interface. Available from 400V up to 40 kV, 100 MVA.

Compact Substation
It is a package solution consisting of transformer, MV switchgear and LV feeder. Available from 160 kVA up to 5000 kVA.

AVR Transformer
Transformer specifically designed to stabilize unstable line voltage. It is equipped with OLTC (On Load Tap Changer) and feedback control unit for automatic operation.

Padmounted Transformer
It is transformer equipped with fuse and switching equipment (LBS for MV and MCCB or Fuse for LV). Available for up to 36 kV, 2500 kVA.

Phase Shifting Transformer
Specially-designed to suppress the harmonics value caused by certain equipment in an electrical system.

Variable Speed Transformer
Specially-designed to convert low voltage VFD / VSD signals to be used for controlling medium-voltage electrical motor speed