Regional Supplier
Transformer Supplier in UAE | DEWA ADDC IEC Certified
IEC-certified power transformers and distribution equipment engineered for UAE's 50Hz grid, high-rise construction, data centers, solar energy parks, and industrial zones.
The UAE is a global hub for mega-construction projects ā from Dubai's iconic high-rise towers to Abu Dhabi's industrial zones and Masdar City's sustainable infrastructure. All require reliable, compliant power transformers and distribution equipment that meet ADDC, DEWA, SEWA, FEWA, and IEC standards.
Ziyao Power supplies a complete range of power transformers and distribution equipment to UAE projects: SCB13/SCB18 dry-type transformers for high-rise buildings (fire-safe, no oil, Civil Defence compliant), S22-M oil-immersed transformers for utility distribution and solar farms, GCS LV withdrawable switchgear (Form 4b available), KYN28/KYN61 MV metal-clad switchgear, and YB Series prefabricated substations.
Our equipment is designed for the UAE's 50Hz grid (400V/230V secondary standard), high ambient temperature operation (up to 55Ā°C), 11kV and 33kV primary distribution, and stringent authority approval requirements. We support projects from design stage through to commissioning with full DEWA/ADDC-compliant documentation packages.
The UAE electricity grid is structured around four main authorities: DEWA serves Dubai's rapidly expanding urban landscape, ADDC and AADC cover Abu Dhabi and Al Ain respectively, SEWA manages Sharjah and the Northern Emirates, and FEWA serves Ras Al Khaimah, Ajman, Umm Al Quwain, and Fujairah. Each authority enforces its own technical specifications, but all operate on a unified 50Hz frequency with standardized voltage levels ā 400/230V for low-voltage secondary distribution, 11kV as the dominant primary distribution voltage in urban areas, 33kV for suburban and industrial feeders, and 132kV and 400kV for transmission interconnections across the emirates. Understanding each authority's approval workflow and documentation requirements is essential for successful equipment supply to UAE projects.
Dubai's Urban Plan 2040 and Abu Dhabi's Economic Vision 2030 are driving unprecedented investment in smart city infrastructure, sustainable urban development, and industrial diversification. Masdar City in Abu Dhabi continues to pioneer net-zero urban design with integrated renewable energy, smart grid technology, and green building standards that demand premium-efficiency transformers and intelligent switchgear. The UAE's National Hydrogen Strategy, targeting 25% of the global low-carbon hydrogen market by 2030, is creating additional demand for specialized power distribution equipment at electrolysis plants, hydrogen compression stations, and export terminal facilities. These strategic initiatives collectively make the UAE one of the world's most dynamic markets for medium and low voltage electrical equipment, with sustained growth projected through 2040 and beyond.
Mega Construction Projects
The UAE continues massive infrastructure investment driven by the Expo City Dubai legacy district transformation, Dubai Urban Plan 2040's mandate for sustainable urban expansion across five major centers, and Abu Dhabi Economic Vision 2030's industrial diversification targets. High-rise towers exceeding 40 stories require fire-safe SCB13/SCB18 dry-type cast resin transformers per electrical riser zone (typically every 15ā20 floors), coupled with LV distribution panels per floor rated for 200Aā400A TPN service. DEWA's Green Building Regulations mandate minimum IE3 motor efficiency and low-loss transformer specifications (EU Tier 2 equivalent), while the UAE Fire and Life Safety Code requires dry-type construction with Class F/H insulation and F1 flame retardancy for all indoor transformer installations. Mixed-use developments combining residential, hotel, and retail require complex electrical infrastructure with multiple service intake points, emergency/essential supply segregation, and generator backup integration ā all areas where Ziyao provides complete equipment packages with coordinated protection settings and discrimination studies.
Data Center Boom
Dubai and Abu Dhabi are emerging as the Middle East's premier data center hubs, with over 600MW of commissioned and planned colocation capacity as of 2025. Hyperscale facilities operated by global cloud providers demand high-efficiency SCB13 dry-type transformers with CENELEC HD 538 compliance, redundant N+1 or 2N LV switchgear in Form 4b construction for total fault containment, and UPS distribution boards rated for 400V with 65kA short-circuit withstand. UAE data centers typically operate at 11kV primary distribution with dual independent feeders from DEWA or ADDC substations, requiring auto-transfer schemes with < 100ms switching time. Transformer efficiency requirements at 50% load must exceed 98.5% per DEWA's Green Data Center guidelines, and harmonic mitigation through K-factor rated transformers or active filtering is mandatory for facilities with high server density exceeding 15kW per rack.
Solar Mega-Projects & Green Hydrogen
UAE targets 44% clean energy by 2050. The Mohammed bin Rashid Al Maktoum Solar Park (5GW) and green hydrogen initiatives require step-up transformers, MV switchgear, and grid-tie equipment for 33kV and 132kV interconnection.
Industrial Expansion
KIZAD (Khalifa Industrial Zone Abu Dhabi) spanning 410 square kilometers, JAFZA (Jebel Ali Free Zone) hosting over 8,700 companies, DIP (Dubai Industrial Park) covering 55 million square meters, and numerous other industrial zones including Hamriyah Free Zone and RAK Maritime City require heavy-duty S22-M oil-immersed transformers rated 500ā5000kVA with ONAN cooling, hermetically sealed conservator-free design to eliminate oil contamination, and GCS withdrawable LV switchgear (Form 3b/4b) rated 400V with main busbars up to 5000A and 80kA short-circuit withstand. Manufacturing facilities with high motor starting currents require transformers with 6% impedance for voltage stability during DOL starting, while logistics centers with automated material handling systems demand low-noise transformers (<55dB) and LV distribution with harmonic filtering for VFD-controlled conveyor networks. All industrial zone installations must comply with ADDC or DEWA distribution codes, UAE Fire and Life Safety Code requirements for hazardous area classification, and Civil Defence approval for transformer room ventilation and fire suppression systems.
ADDC / DEWA Compliance
All electrical equipment installed in the UAE must meet local authority specifications enforced through rigorous Type Registration and pre-qualification processes. DEWA requires submission of IEC type-test certificates from accredited laboratories (recognized under ILAC MRA), manufacturer ISO 9001 and ISO 14001 certificates, detailed technical datasheets covering no-load and load losses, impedance voltage, temperature rise limits per IEC 60076, and short-circuit withstand test reports. ADDC maintains a Vendor Registration system requiring pre-qualification before tender participation, with mandatory site audits of manufacturing facilities. Ziyao provides complete DEWA/ADDC-compliant documentation packages including factory acceptance test (FAT) protocols, routine test reports per IEC 60076-1, material traceability certificates for CRGO silicon steel and electrolytic copper windings, paint and coating specifications for C5-M marine/corrosive environment suitability, and type-test documentation covering lightning impulse, temperature rise, and short-circuit withstand. For switchgear, our documentation includes internal arc classification (IAC) test reports per IEC 62271-200, degree of protection (IP) test certificates, and Form of separation verification reports.
Fast-Track Project Delivery
UAE construction and infrastructure projects frequently operate on accelerated timelines driven by contractual milestones, exhibition deadlines, and seasonal commissioning windows (typically targeting pre-summer handover in Q1āQ2). Ziyao offers express manufacturing programs delivering SCB13 dry-type transformers and GCS LV switchgear within 4ā6 weeks from approved shop drawings, compared to the industry standard 10ā14 weeks. For mission-critical equipment, we provide air freight options via major UAE hubs (DXB and AUH airports) with 5ā7 days door-to-door delivery including customs clearance. Our Jebel Ali Port sea freight route offers weekly sailings with 14ā18 day transit from major export ports, and we maintain buffer stock of popular transformer ratings (1000kVA, 1600kVA, 2000kVA in 11/0.4kV) for immediate dispatch against confirmed orders. Pre-fabricated substations (YB Series) can be fully assembled and tested at our factory, reducing on-site commissioning time by 40ā60% compared to traditional built-on-site substations.
Dry-Type Cast Resin Transformers
SCB13SCB13/SCB18 indoor transformers for commercial towers, hospitals, and malls. Fire-safe, low noise, no oil containment required.
Preferred for UAE high-rise: fire-safe, no oil, meets Civil Defence requirements.
View SCB13 Series āOil-Immersed Transformers
S22-MS22-M hermetically sealed transformers for outdoor utility distribution, industrial zone substations, and solar farm step-up applications.
LV Withdrawable Switchgear
GCSGCS-series LV withdrawable panels for main distribution in commercial complexes, industrial facilities, and data center power rooms.
MV Metal-Clad Switchgear
KYN28KYN28-12 MV switchgear for primary distribution in utility substations and large industrial plants. Vacuum circuit breaker, arc-proof design.
High-Rise Commercial Towers
Floor-by-floor dry-type transformers and LV distribution for offices, hotels, and mixed-use towers.
Industrial Zones
Oil-immersed transformers and GCS panels for JAFZA, KIZAD, and DIP manufacturing facilities.
Solar Parks
Step-up transformers and MV switchgear for utility-scale PV plants connecting to DEWA/TRANSCO grid.
Data Centers
High-efficiency dry-type transformers with N+1 redundant LV distribution for hyperscale facilities.
Shopping Malls & Retail
Compact dry-type transformers and LV panels for mall main intake and tenant distribution.
Desalination & Water
Corrosion-resistant transformers and switchgear for coastal desalination plants.
Typical High-Rise Tower Electrical Distribution ā Dubai
Reference configuration for a 40-story commercial tower with dual incoming 11kV feeders from DEWA substation, 2Ć 2000kVA SCB13 dry-type cast resin transformers (11/0.4kV, Dyn11, 6% impedance), main LV switchgear in Form 4b construction with 3200A ACB incomers and 65kA fault rating, floor-level TPN distribution boards at 200Aā400A per floor with sub-metering for tenant billing, 1600A rising busbar trunking system for vertical power distribution, a 500kVAR automatic power factor correction bank with 7% detuned reactors to maintain PF >0.92 for DEWA compliance, automatic transfer switch panel with 3200A 4-pole motorized changeover for generator backup integration per UAE Civil Defence requirements, and a complete building management system interface via Modbus RTU/TCP communication gateways in each switchboard for real-time power monitoring and energy management in accordance with Dubai Green Building Regulations.
| Equipment | Qty | Specification |
|---|---|---|
| Dry-Type Transformer | 2 | SCB13 2000kVA, 11/0.4kV, AN/AF, IP21 enclosure |
| MV Ring Main Unit | 1 set | 12kV, 630A, 3-way, SF6 insulated |
| LV Main Switchboard | 2 sets | GCS, 400V, 3200A, 65kA, Form 4b |
| Busbar Trunking | 1 system | 1600A rising mains for floor distribution |
| Floor Distribution Boards | 80 panels | TPN, 200Aā400A per floor, metered |
| Capacitor Bank | 1 set | Automatic PFC, 500kVAR, 7% detuned reactor |
| Generator ATS Panel | 1 set | 3200A, 4-pole, motorized changeover |
Q: Are your products DEWA/ADDC approved?
Our products are manufactured in strict accordance with IEC 60076 (power transformers), IEC 60076-11 (dry-type), IEC 61439-2 (LV switchgear), and IEC 62271-200 (MV switchgear) standards. We provide complete Type Registration submission packages accepted by DEWA and ADDC for authority approval, including IEC type-test certificates from ILAC MRA-accredited laboratories covering temperature rise, lightning impulse, short-circuit withstand, and sound level measurements. Each package includes manufacturer ISO 9001:2015 and ISO 14001:2015 certificates, detailed technical datasheets, material traceability certificates for CRGO silicon steel cores and electrolytic-grade copper windings, paint and coating system specifications, and factory acceptance test (FAT) protocols. For DEWA submissions specifically, we include DEWA-distributor registration documentation, type-test comparison tables mapped to DEWA's technical schedule requirements, and previous project reference letters from GCC-region installations. Our documentation is regularly updated to reflect the latest revisions of DEWA's Distribution Equipment Specifications and ADDC's Technical Standards, ensuring smooth approval workflows for consultants, contractors, and end-users. For switchgear, we additionally provide internal arc classification (IAC) test reports, IP degree of protection certificates (typically IP4X for indoor, IP65 for outdoor), and Form of separation verification per IEC 61439-2.
Q: What voltage configurations do you supply for UAE?
Standard UAE voltage configurations are 11kV primary distribution with 400Vā415V (phase-to-phase) / 230V (phase-to-neutral) secondary for commercial and residential applications, all operating at 50Hz frequency. We also supply 33kV primary transformers for utility distribution substations and industrial zone feeders, as well as 690V phase-to-phase secondary for heavy industrial motor loads, pumping stations, and process plants. For solar farm applications, we provide 0.8kV (DC-side inverter output) to 33kV step-up transformers, and 33/132kV interconnecting transformers for grid-tie substations. All transformers are rated for 50Hz operation with appropriate flux density design, and we can supply dual-voltage secondary configurations (e.g., 400/230V with 415/240V tappings at Ā±2.5% and Ā±5% off-circuit tap changer ranges) to accommodate variations between DEWA (400/230V standard) and ADDC (415/240V preferred) distribution specifications. Our design team can also provide transformers with Dyn11 vector group for LV distribution, YNd11 for MV step-up applications, and customized impedance values (typically 4%, 5%, or 6%) based on fault level coordination requirements and voltage drop calculations per project specifications.
Q: Do you provide Form 4b LV switchgear for UAE projects?
Yes, our GCS series LV withdrawable switchgear is available in Form 4b configuration per IEC 61439-2, providing complete segregation between functional units, busbars, and external cable terminations ā each in its own dedicated compartment with separate metallic barriers. In Form 4b construction, main and distribution busbars are fully enclosed in segregated chambers, functional units are individually compartmentalized with interlocked doors preventing access when the circuit breaker is in service position, and cable termination areas are separated from busbar compartments to ensure maintenance personnel can work safely on one functional unit while adjacent units remain energized. This is the construction most frequently specified by UAE consultants (AECOM, WSP, Arcadis, Khatib & Alami, and local firms) for high-rise commercial towers, hospital electrical infrastructure, and data center power distribution where operational continuity during maintenance is critical. Each functional unit is rated up to 4000A for ACB incomers and 630A for MCCB feeders, with type-2 coordination between circuit breakers and downstream protective devices. We provide arc-fault containment design verified by IEC 61641 testing, IP31 to IP54 enclosure protection, and can integrate multi-function power meters, earth leakage protection, and communication gateways (Modbus RTU/TCP, BACnet) for BMS integration as required by UAE smart building specifications.
Q: Can you match UAE consultant-specified brands?
We manufacture under the Ziyao Power brand with full traceability to our ISO 9001:2015 certified manufacturing facility. For OEM/substitution requests ā common in UAE projects where consultants specify approved vendor lists (AVL) including major European brands (Schneider, ABB, Siemens) and Asian manufacturers ā we provide comprehensive technical comparison sheets formatted to UAE consultant submission standards. Each comparison covers: core and winding specifications (CRGO silicon steel grade, copper purity ā„99.9%, current density design), no-load and load loss values compared against EU EcoDesign Tier 2 thresholds, impedance voltage and vector group matching, temperature rise limits (Class F/H insulation with temperature rise limited to 100K/125K respectively per IEC 60076-11), sound power level measurements at rated voltage per IEC 60076-10, partial discharge levels (< 10pC at 1.5Ć rated voltage), and protection degree (IP21 to IP55 options). We also include deviation statements highlighting where Ziyao specifications exceed the original specified equipment, third-party type-test report cross-references, and reference project lists from comparable GCC installations. Our substitution packages consistently achieve consultant approval within 2ā4 weeks, supported by direct factory communication and optional factory witness testing via video conference or on-site visit.
Q: What is your delivery time for UAE projects?
Standard manufacturing lead times are 6ā8 weeks from approved shop drawings for dry-type and oil-immersed transformers, with LV/MV switchgear typically completing within the same window when ordered together. Sea freight to Jebel Ali Port ā the UAE's primary container port and the busiest in the Middle East ā takes 14ā18 days from major export ports with weekly sailings available on all major carriers (Maersk, MSC, CMA CGM, COSCO). Door-to-door delivery including customs clearance at Jebel Ali typically adds 3ā5 days after vessel arrival. For urgent requirements, we offer air freight via Dubai World Central (DWC) or Dubai International Airport (DXB) with 5ā7 days door-to-door including UAE customs clearance at approximately 2.5ā3x sea freight cost. Common transformer ratings (500kVA, 1000kVA, 1600kVA, 2000kVA at 11/0.4kV) are maintained in buffer stock for immediate dispatch within 2 weeks. YB Series prefabricated substations can be fully factory-assembled and tested before shipment, significantly reducing on-site erection and commissioning time in the UAE. For all shipments, we provide complete export documentation including Certificate of Origin (typically issued by CCPIT or China Council for Promotion of International Trade), commercial invoice, packing list, bill of lading or airway bill, and UAE Conformity Assessment Scheme (ECAS/CAB) certification where applicable. We coordinate with UAE-based freight forwarders for seamless customs clearance, port handling, and inland transport to project sites across all seven emirates.
Q: What are the UAE grid voltage standards by authority?
The UAE operates a unified 50Hz national grid, but each distribution authority maintains specific voltage preferences. DEWA (Dubai) specifies 11kV as the standard primary distribution voltage for urban networks with 400/230V nominal secondary, while 33kV is used for primary substation infeeds to large developments and industrial zones. ADDC (Abu Dhabi) similarly uses 11kV and 33kV distribution but typically specifies 415/240V secondary voltage for new installations. SEWA (Sharjah, Ajman, Umm Al Quwain) and FEWA (Ras Al Khaimah, Fujairah) follow Federal Electricity and Water Authority specifications with 11kV distribution and 400/230V low-voltage service. For transmission interconnections between emirates, the grid operates at 132kV and 400kV with interconnection through the GCC Interconnection Authority. All transformers supplied to the UAE must be rated for 50Hz operation with off-circuit tap changer ranges of Ā±2Ć2.5% as standard and Ā±4Ć2.5% for wider voltage regulation applications. Our transformers are designed with Dyn11 vector group (30Ā° phase displacement) as the LV distribution standard per UAE utility practice, and we provide customized voltage ratio configurations matched to each authority's specific technical requirements.
Q: Are your dry-type transformers UAE Fire and Life Safety Code compliant for high-rise buildings?
Yes, our SCB13 and SCB18 dry-type cast resin transformers fully comply with the UAE Fire and Life Safety Code of Practice (2018 Edition with subsequent revisions) for installation in high-rise buildings. The Code requires transformers installed inside buildings to be dry-type construction with Class F or H insulation systems (thermal class 155Ā°C or 180Ā°C), and our SCB13 series uses Class F insulation with temperature rise limited to 100K, while SCB18 uses Class H with 125K maximum temperature rise ā both well within Code limits. Cast resin encapsulation provides F1 flame retardancy classification per IEC 60076-11, meaning the transformer is self-extinguishing and does not propagate flame when the external ignition source is removed. For high-rise tower installations, we supply IP21 or IP23 enclosure protection with forced ventilation, and can provide IP31 and higher for substation-level installations. Our transformers use silicone-free insulation materials that produce low-toxicity, clear smoke in the unlikely event of thermal decomposition ā a critical requirement for high-rise building evacuation safety. Additional compliance features include: maximum surface temperature <140Ā°C on accessible enclosure surfaces, minimum 600mm clearance from combustible materials per Code Table 6.2, provision for automatic fire detection integration, and seismic restraint brackets suitable for UAE Seismic Zone 2A requirements. Each transformer is supplied with a Declaration of Conformity referencing the specific Fire Code clauses for Civil Defence approval.
Q: How do you handle shipping and customs clearance to Jebel Ali Port?
We manage the complete shipping and customs clearance process to Jebel Ali Port, the UAE's largest container terminal and gateway to Middle East, Africa, and South Asian markets. Our standard shipping route departs weekly from Shanghai/Ningbo with 14ā18 day transit to Jebel Ali, with additional departures from Shenzhen and Qingdao available. We prepare all UAE Customs documentation including: Commercial Invoice certified by CCPIT (China Council for Promotion of International Trade), Detailed Packing List with HS codes (8504.22 for liquid dielectric transformers, 8504.21 for dry-type), Certificate of Origin (Form A or general COO), Bill of Lading issued by the carrier, and when applicable, UAE Conformity Assessment Scheme (ECAS) Certificate of Conformity or Emirates Quality Mark for regulated electrical equipment under ESMA (Emirates Authority for Standardization and Metrology) jurisdiction. For equipment exceeding standard container dimensions, we arrange flat-rack or open-top containers with proper weatherproofing and securing. Upon vessel arrival at Jebel Ali, customs clearance typically takes 3ā5 working days through our nominated clearing agent in Dubai, who handles import declaration through Dubai Customs Mirsal 2 system, duty payment (5% for most electrical equipment under GCC Common Customs Law), and port handling charges. We then coordinate inland transport by flatbed trailer to project sites anywhere in the UAE ā Dubai, Abu Dhabi, Sharjah, or Northern Emirates ā with full cargo insurance coverage (Institute Cargo Clauses A) throughout the voyage from factory gate to project site. For projects in KIZAD or Jebel Ali Free Zone (JAFZA), we utilize bonded corridor procedures for duty-suspended delivery directly to free zone premises. Our logistics team provides real-time vessel tracking and customs status updates throughout the shipping process.
Data Center Power Architecture
High-efficiency dry-type transformers and fully redundant LV switchgear for UAE's hyperscale data centers ā N+1 configurations, Form 4b segregation, and DEWA-compliant documentation.
Learn more āSolar Farm Power Distribution
Complete MV/LV power distribution for utility-scale solar farms ā step-up transformers, RMU, and grid-tie equipment compatible with DEWA/TRANSCO interconnection requirements.
Learn more āIndustrial Power Distribution
Heavy-duty power distribution for UAE industrial zones (KIZAD, JAFZA, DIP) ā oil-immersed transformers and GCS withdrawable LV panels for manufacturing and logistics facilities.
Learn more āIndonesia 550kW Off-Grid Solar Project
Off-grid solar system with integrated 550kW step-up transformer (0.4/11kV) and KYN28 MV switchgear, demonstrating Ziyao's expertise in solar power distribution equipment applicable to UAE solar park requirements, including DC/AC inverter integration, grid-forming control for islanded operation, and DEWA/TRANSCO-compliant grid interconnection protection schemes for utility-scale PV plants.
View Case Study āHigh-Rise Commercial Tower Electrical Distribution ā Middle East
SCB13 dry-type cast resin transformers (2000kVA, 11/0.4kV, Dyn11 vector group, Class F insulation with 100K temperature rise, AN/AF cooling with IP21 enclosure) and GCS Form 4b LV withdrawable switchgear (400V, 3200A main busbar, 65kA short-circuit withstand, type-2 coordination) supplied for a 40-story commercial tower electrical infrastructure, meeting Gulf region Civil Defence fire safety requirements and DEWA-level equipment specifications, with full type-test documentation and factory acceptance testing.
Industrial Zone Substation Supply ā Gulf Region
Multiple S22-M hermetically sealed oil-immersed transformers (500ā2500kVA, 11/0.4kV, ONAN cooling, Ā±2Ć2.5% off-circuit tap changer) and KYN28 metal-clad MV switchgear (12kV, 630Aā1250A vacuum circuit breakers, 25kA breaking capacity) deployed for industrial zone primary distribution substations, with 55Ā°C ambient temperature rating, C5-M corrosion protection for coastal/marine environment durability, and ADDC-compliant type-test documentation including temperature rise, lightning impulse, and short-circuit withstand certification.
Power Distribution Equipment for UAE Projects
Share your project specifications and we'll provide a complete equipment schedule with technical datasheets and DEWA/ADDC compliance documentation.