Catalog & Active Deployments
Featured Transformers & Power Conversion Units
Factory-direct OEM/ODM magnetic assemblies, encapsulated drivers, and regulated AC-DC units engineered for low total harmonic distortion (THD) and thermal stability across Indonesian commercial corridors.
System Integration & Engineering
Localized Application Scenarios across Jabodetabek & West Java
High-density urban development, heavy tropical ambient heat, and unstable PLN voltage distribution demand specialized electromagnetic engineering designed for Indonesia's physical and industrial realities.
Industrial Automation in Cikarang & Karawang
The manufacturing corridors of MM2100, GIIC, and KIIC house sophisticated automotive assembly and CNC machinery. Our high-frequency EE and PQ transformers prevent saturation during severe line harmonics and micro-surges common on high-load feeder circuits, ensuring clean auxiliary power for PLC systems, servo drives, and robotic controllers.
Hyperscale Data Centers in Greater Jakarta
With Jakarta becoming ASEAN’s fastest-growing cloud hub, facilities across BSD City and Cibitung require mission-critical power supplies with ultra-low thermal footprint. Our custom LLC resonant transformers operate at up to 96.5% efficiency, reducing cooling loads, lowering parasitic capacitance, and complying with stringent IEEE harmonic limits.
Commercial High-Rise Infrastructure & Smart LED
From SCBD commercial towers to residential complexes, LED architectural lighting and security networks run continuously. Our rainproof SMPS and potted toroidal units withstand ambient humidity averaging 80% to 90%, eliminating high-frequency flicker, acoustic coil whining, and premature dielectric breakdown caused by tropical moisture ingress.
96.8%
Peak Energy Efficiency
4000V
Hi-Pot Dielectric Isolation
<45°C
Controlled Temp Rise at 40°C Amb
100%
Burn-in & Full Load Verified
Market Intelligence & Industry 4.0
Future Trends: Driving Indonesian Power Electronics
How national electrification mandates, green manufacturing initiatives, and regulatory pivots affect procurement vectors for tier-1 Indonesian buyers.
Electromobility & EV Charging Hubs
As the Indonesian government speeds up 2-wheeler and 4-wheeler EV adoption in Jakarta, the demand for compact, rugged onboard DC-DC converters and isolated high-frequency flyback transformers has surged by over 45% year-on-year.
Smart Grid Modernization & PLN Integration
Advanced Metering Infrastructure (AMI) and distribution automation across Jawa-Bali require auxiliary switch-mode transformers with ultra-wide input ranges (85V–305V AC) to survive seasonal brownouts and voltage instability.
Solar Rooftop & Microinverter Boom
Industrial complexes in West Java are deploying commercial rooftop PV systems. Our low-core-loss planar and PQ transformers operate efficiently in grid-tied microinverters, resisting thermal fatigue under sustained sun exposure.
Strict SNI & RoHS Environmental Compliance
Indonesian industrial authorities increasingly prioritize environmental sustainability. Zelqo manufactures with certified Class F/H enameled copper and non-toxic flame-retardant epoxy, ensuring complete compliance with global RoHS and target SNI safety metrics.
| Magnetic Core Geometry | Permeability Range (μi) | Operating Switching Frequency | Primary Industrial Application (Jakarta Corridor) | Isolation Rating |
|---|---|---|---|---|
| EE / EI Series (EE13 to EE65) | 2300 ± 25% (Mn-Zn) | 20 kHz – 150 kHz | Standard Auxiliary SMPS, Telecom Inverters, Router Adaptors | 3.0 kV – 3.75 kV AC |
| PQ Series (PQ20 to PQ50) | 2500 ± 25% (Low Core Loss) | 50 kHz – 300 kHz | Industrial DC-DC Converters, Karawang Robotic Control Cabinets | 3.75 kV – 4.0 kV AC |
| Toroidal Core (Wound Silicon / Ferrite) | High Saturation Flux (1.6T) | 50/60 Hz to 100 kHz | Audio Amplification, Medical Isolation, Precision Elevator Logic | 4.0 kV Dielectric Potting |
| EFD / EPC Series (Low Profile) | 2200 ± 20% | 100 kHz – 500 kHz | High-Density Jakarta Hyperscale Cloud Server Blades | 3.0 kV AC Reinforced |
Why Zelqo Power
Engineering Integrity & Verified Manufacturing
Headquartered in Xi'an, Shaanxi, Zelqo Power operates as an Intertek-verified original design and manufacturing entity. We bypass off-the-shelf distributor compromises, engineering magnetic solutions tuned directly to the electrical tolerances and environmental stressors of our overseas B2B clients.
Intertek On-Site Verified Capability
Audited production floors, certified CNC winding infrastructure, and transparent transaction traceability proven through comprehensive factory verifications.
Multi-Stage Rigorous Testing Workflow
Every transformer undergoes LCR digital bridge analysis, leakage inductance verification, impulse winding surge testing, and full-load burn-in aging prior to dispatch.
Tailored Climatic Engineering (Anti-Moisture)
Specialized epoxy vacuum impregnation, double-layer margin tape, and reinforced triple-insulated wire (TIW) designed to defeat tropical fungal growth and humidity-induced tracking.
Accelerate Your Transformer Supply Chain in Jakarta
Whether you require prototype validation for a custom SMPS topology or container-level OEM scheduled deliveries to Tanjung Priok, our senior electromagnetic engineering team is ready to review your schematics.
Contact Us
Procurement & Technical Support
Frequently Asked Questions
Clear, definitive answers addressing regulatory compliance, shipping logistics to Jakarta, and engineering customization parameters.
How do your high-frequency transformers handle Jakarta’s heat and humidity?
Jakarta’s average humidity exceeding 80% and high ambient factory temperatures require advanced dielectric insulation. We apply Class F (155°C) and Class H (180°C) magnet wire combined with vacuum pressure impregnation (VPI) of certified phenolic or epoxy varnishes.
This seals core air pockets, eliminates moisture absorption, prevents corona discharge, and enhances heat dissipation away from inner winding layers.
What technical data is required to obtain an OEM/ODM transformer quotation?
To deliver an exact engineering proposal, our R&D team requires: input voltage range and frequency, nominal output voltage and current per secondary winding, circuit topology (e.g., Flyback, Forward, Half-Bridge LLC), switching frequency (kHz), operating ambient temperature, physical footprint constraints, and safety target requirements (such as IEC 61558, IEC 62368-1, or UL ratings).
What are the standard shipping routes and transit times to Greater Jakarta?
For urgent rapid-prototyping and engineering validation samples, we utilize express air freight (DHL, FedEx) with arrival in Jakarta within 3 to 5 business days. For volume mass production runs, ocean freight from main Chinese ports to Tanjung Priok Port (Jakarta) typically takes between 10 to 14 days, followed by streamlined customs processing via authorized forwarding agents.
Can you provide full DDP (Delivered Duty Paid) terms or import assistance for Indonesian buyers?
Yes. We regularly supply distributors and factories across Jabodetabek under FOB, CIF, or DDP terms in collaboration with licensed Indonesian freight partners, handling all necessary Certificate of Origin (Form E for ASEAN-China Free Trade preferential duty rates) and customs paperwork.
How does Zelqo verify quality and prevent early failure in the field?
Every single production batch undergoes 100% comprehensive testing: LCR bridge testing (for inductance, leakage inductance, and Q factor), high-voltage impulse testing (verifying inter-turn winding insulation without enamel micro-cracks), and high-potential (Hi-Pot) dielectric breakdown testing up to 4.0 kV AC. Power supplies and finished drivers are subjected to continuous 4-hour dynamic load aging runs.
Why choose high-frequency ferrite core transformers over standard silicon steel EI transformers?
While low-frequency laminated transformers serve basic 50/60 Hz linear setups well, high-frequency ferrite core transformers operate between 20 kHz and 500 kHz. This enables a drastic reduction in magnetic volume and copper weight (often 70% lighter and smaller), achieves higher operational efficiency (>92%), and delivers tight voltage regulation necessary for modern automated electronics and compact SMPS assemblies.