PT Bambang Djaja (B&D Transformers)

Permanent company ID (stable census identity — not a certification)

PT Bambang Djaja (B&D Transformers) is listed as a transformer manufacturer in Surabaya, East Java, Indonesia. Products and scope on file: power transformers, distribution transformers and dry-type and cast-resin transformers.

🇮🇩 · Indonesia · Surabaya, East Java · Listed · Official website ↗

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Independent census profile, not the company website. How this census is compiled. Last reviewed 2026-08-28 · Profile status Listed

Directory Completeness Score

50% Complete

Data Provenance: Public Industry Census

Last reviewed: 2026-08-28

Pending technical specifications: Headquarters address · Maximum voltage rating · Maximum unit MVA / rating · Standards compliance (IEC/IEEE) & ISO certifications · Test bay specifications & utility references

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Declared origin: —

Buyers may need origin information for grid equipment under upcoming rules in the United States and the European Union. Declared origin is the country of manufacture a supplier states on its own site or in a filing. Where no statement is on file, the field shows —. This is not legal advice.

Capabilities

Power Distribution Dry-type

Related components

Transformer bushings On-load tap changers Cooling systems Insulation materials Protection & monitoring Oil & preservation Conductors & core steel

Relevant applications

Utilities & Grid HVDC & Converters Renewable Energy Data Centres Railways & Metro

Markets

Indonesia manufacturers Surabaya, East Java Indonesia market

Latest intelligence about this company

Brazil: WEG wins compensating-solution package for Vilhena 2 500/230 kV substation — 165 MVA transformer + 165 MVAr syncon
WEG firma contrato com a Guaporé Sul Transmissora (BTG Pactual) — full 'solução compensadora' for the Vilhena 2 substation under Lot 4 of ANEEL Auctio…
China XD wins CNY 4.13bn in SGCC third-batch UHV & transmission equipment tenders — 14 subsidiaries named
中国西电7月22日公告：下属14家子公司中标国家电网2026年特高压项目第三次设备招标及输变电项目第三次变电设备招标，合计约41.29亿元 — UHV packages ~CNY 2.63bn (transformers, converter valves, capacitors, breakers…
SGCC's eight UHV equipment batches total CNY 40.79bn — converter transformers CNY 7.6bn across 14 packages
八批特高压设备招标累计407.9亿元、667个包、156家供应商：换流阀112.1亿（NARI系46.8%）、1000 kV GIS 77.7亿、换流变76.0亿 — XD, NARI, Shandong Electrical, TBEA and five others take ~80% of v…

Upcoming events

CMD 2026 — Int'l Conf. on Condition Monitoring & Diagnosis 3 Nov 2026 · Denpasar (Bali), Indonesia
Smart Energy Indonesia 2027 21 Apr 2027 · Jakarta, Indonesia
Electric & Power Indonesia 2027 (25th edition) 8 Sept 2027 · Jakarta, Indonesia
Electric & Power Indonesia 2028 (26th edition) 13 Sept 2028 · Jakarta, Indonesia

Last reviewed: 2026-08-28.

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