Regional Supplier
Transformer Supplier in Saudi Arabia
Power transformers and electrical equipment configured for Saudi Arabia's 60Hz grid, desert conditions, industrial loads, and renewable-energy projects.
Saudi Arabia is undergoing one of the world's most ambitious infrastructure transformations under Vision 2030. From NEOM and The Red Sea Project to massive utility-scale solar parks, the Kingdom demands reliable, high-performance electrical equipment that meets IEC and SASO standards. The Saudi power market, valued at over $30 billion, is dominated by the Saudi Electricity Company (SEC) as the primary utility operator, with increasing participation from independent power producers (IPPs) under the National Renewable Energy Program (NREP). The Kingdom's installed generation capacity exceeds 80 GW across more than 60 power plants, with transmission voltages standardized at 110kV, 132kV, 230kV, and 380kV operating uniquely at 60Hz frequency — a critical technical distinction from neighboring GCC states that typically use 50Hz. This makes Saudi Arabia a specialized market requiring purpose-built transformer designs rather than off-the-shelf equipment configured for Middle East regional norms.
Ziyao Power offers dry-type (SCB13/SCB18), oil-immersed (S22-M), and prefabricated substation (YB Series) options that can be configured for 60Hz operation, high ambient temperatures, dust exposure, and project-defined enclosure protection. Final ratings, derating, losses, temperature rise, accessories, and test scope are confirmed from the approved technical schedule before manufacture.
Typical applications include utility distribution, desalination, petrochemical facilities, data centers, and solar projects. We can prepare product datasheets, available test records, material information, FAT proposals, Arabic-English labels, and responses to purchaser comments. SASO, SABER, SEC, energy-efficiency, importer, and customs requirements are reviewed for the exact product and shipment; third-party certification or authority acceptance is not represented as automatic.
Vision 2030 Infrastructure
Giga-projects — NEOM ($500 billion cross-border city), The Red Sea Project (50 hotels, 8,000 rooms), Qiddiya entertainment megacity, ROSHN residential communities, and Diriyah Gate heritage development — collectively require thousands of transformers and switchgear units for phased construction power loads ranging from 500kVA temporary mobile substations to permanent 20MVA distribution substations. Each giga-project operates its own dedicated transmission and distribution infrastructure, creating sustained demand for 13.8kV/0.4kV distribution transformers, 33kV MV switchgear, and 132kV power transformers over multi-year deployment timelines. SEC has designated specific technical standards for giga-project power supply, including enhanced harmonic filtering requirements due to high VSD motor loads in HVAC and pumping systems, redundant N+1 substation configurations for critical hospitality and healthcare loads, and smart grid readiness with IEC 61850 communication protocols for integration with SEC's national SCADA network.
Renewable Energy Expansion
Saudi Arabia targets 130GW of renewable capacity by 2030 under the National Renewable Energy Program, with solar PV accounting for approximately 90GW and wind contributing 16GW plus concentrated solar power (CSP) and waste-to-energy projects. Each utility-scale solar farm — such as Sudair (1.5GW), Shuaibah (2.6GW), and Ar Rass (700MW) — requires hundreds of step-up transformers (typically 0.48kV or 0.8kV to 33kV), MV metal-clad switchgear rated at 33kV with 25-31.5kA breaking capacity, ring main units for collector field segmentation, and HV/MV power transformers for grid interconnection at 132kV or 380kV. The SEC Grid Code mandates specific requirements for solar PV plant interconnection including: fault ride-through capability, reactive power control range of 0.95 leading to 0.95 lagging, harmonic current injection limits per IEEE 519, and SCADA integration with real-time telemetry to SEC's National Control Center. Our engineering team configures transformer impedance values and tap changer ranges to meet the voltage regulation requirements of long cable runs typical in solar collector fields spanning several square kilometers, and we supply transformers with K-factor ratings to handle harmonic-rich inverter output waveforms.
Grid Modernization
SEC (Saudi Electricity Company) manages a nationwide transmission and distribution network across the Kingdom. Under the Saudi Transmission Master Plan, SEC is upgrading aging substations, expand 380kV backbone transmission corridors, and deploy smart grid technologies including advanced distribution management systems (ADMS), automated feeder switching, and remote terminal units (RTUs) with IEC 61850-compliant protection and control. This modernization program drives sustained demand for 13.8kV distribution transformers (100-2500 kVA), 33kV primary substation transformers, 132kV power transformers (10-60 MVA), and MV switchgear rated 13.8-36kV with vacuum or SF6 circuit breaker technology. Key SEC technical requirements include: on-load tap changers with ±10% regulation range in 1.25% steps, Buchholz relay and winding temperature indicator (WTI) protection, online dissolved gas analysis (DGA) monitoring for critical 132kV units, and outdoor enclosure designs rated for 55°C ambient with direct solar radiation exposure. Our transformers feature conservator-type oil preservation systems with silica gel breathers, magnetic oil level gauges, and dial-type thermometers — all standard SEC-specified accessories.
Industrial & Desalination
Saudi Arabia is the world's largest desalinated water producer with over 30 major desalination plants — including Ras Al-Khair (1.025 million m³/day), Jubail, Shoaiba, and Yanbu — plus the massive petrochemical complexes of SABIC in Jubail Industrial City and Yanbu Industrial City, and expanding mining operations under Ma'aden in Ras Al-Khair and Waad Al-Shamal. These industrial facilities demand extremely robust power distribution equipment: oil-immersed transformers with enhanced corrosion protection (C4/C5-M coating systems per ISO 12944) for coastal saline environments, dry-type transformers with Class H (180°C) insulation for high-ambient indoor installations in unair-conditioned plant buildings, GCS withdrawable LV switchgear rated 400V 3200-6300A with 65-85kA short-circuit withstand, and motor control centers (MCCs) with intelligent motor protection relays for the thousands of pump, compressor, and conveyor drives across these facilities. Special considerations include: harmonic mitigation transformers (K-factor rated) for VSD-heavy process loads, arc-resistant switchgear designs per IEC 62271-200 Annex A for personnel safety in petrochemical classified areas, neutral earthing resistors for generator step-up applications, and dual-secondary transformers providing both 480V and 400Y/230V outputs from a single unit to serve mixed US-origin and IEC-origin equipment fleets common in Saudi industrial plants. Our in-house paint shop applies multi-layer epoxy zinc-rich primer with polyurethane topcoat systems designed for coastal desalination installations.
Saudi Conformity Support
Saudi conformity requirements depend on the product category, model, shipment, importer, and current technical regulations. We can prepare the available product technical file, test records, declarations, labels, and shipment documents, then coordinate with the buyer and a qualified conformity-assessment provider when SASO or SABER procedures apply. The applicable route, registration status, inspection scope, certificate issuer, energy-efficiency requirement, and importer responsibility are verified before order; Ziyao Power does not issue or guarantee third-party certificates.
60Hz Grid Requirements
Unlike most of Asia, Europe, and the Middle East which operate at 50Hz, Saudi Arabia's electrical grid operates at 60Hz frequency — a legacy of early American engineering influence shared with only a few other countries regionally. This is a critical design parameter affecting every aspect of transformer engineering: core cross-sectional area must be reduced by approximately 17% compared to 50Hz designs (since induced voltage is proportional to frequency × flux × turns), winding turns ratios must be recalculated for 60Hz impedance characteristics, no-load losses typically increase by 10-15% at 60Hz due to higher eddy current and hysteresis losses in the core, and short-circuit impedance values shift requiring verification against SEC specification limits. Our transformers are explicitly designed and factory tested at 60Hz — not adapted from 50Hz designs — with optimized grain-oriented silicon steel core laminations (typically M3 or M4 grade, 0.23-0.27mm thickness), continuously transposed conductor (CTC) windings for larger units, and magnetic circuit simulations using finite element analysis software to verify flux distribution and hotspot locations at 60Hz operation. Each transformer shipped to Saudi Arabia includes a complete 60Hz factory test report covering: no-load loss at rated voltage and 60Hz, load loss at rated current and 60Hz, impedance voltage at 75°C reference temperature, insulation power factor (Doble testing), and for dry-type units, partial discharge measurement at 1.1× rated voltage per IEC 60076-11. Cooling system calculations are verified for 55°C maximum ambient with 60Hz fan and pump auxiliary power supplies where forced cooling (ONAF/ONAF) is specified for larger units. The 60Hz frequency also affects auxiliary equipment selection: cooling fan motors, oil pump motors, and control circuit transformers must all be rated for 60Hz supply, and microprocessor protection relays must be configured for 60Hz system frequency for accurate metering and protection coordination.
Oil-Immersed Distribution Transformers
S22-MHermetically sealed S22-M transformers can be configured for outdoor utility and industrial applications. Voltage ratio, frequency, losses, tap range, protection accessories, corrosion system, enclosure, and energy-efficiency target are selected from the purchaser's technical schedule. Saudi regulatory and utility requirements are reviewed for the exact model instead of assumed for the full series.
Available with 60Hz windings and high-temperature insulation for desert conditions.
View S22-M Series →Dry-Type Cast Resin Transformers
SCB13Fire-safe SCB13/SCB18 dry-type cast resin transformers for indoor installations in commercial buildings, hospitals, data centers, and metro stations. The cast resin encapsulation under vacuum provides Class F (155°C) or Class H (180°C) insulation with self-extinguishing properties and negligible smoke emission in the event of a fault — critical for occupied buildings where fire safety is paramount. SCB13 series achieves 30% lower no-load losses than SCB10 baseline through the use of low-loss grain-oriented silicon steel (typically 0.23mm M3 grade) with step-lap core construction, while SCB18 series pushes efficiency further with amorphous metal core technology delivering 70-80% no-load loss reduction. Standard features include: forced air cooling (AF) with thermal relay control for up to 150% overload rating, PTC thermistor winding temperature monitoring with relay outputs for alarm and trip, IP00 to IP23 enclosure options with optional IP31/IP42 for dusty environments when installed in non-air-conditioned Saudi plant buildings, natural air cooling (AN) as standard with automatic AF override, and vibration-damping pads for low-noise installations in hospitals and hotels. All units are tested for partial discharge (<10pC at 1.1Um) per IEC 60076-11, and 60Hz performance is verified — efficiency class equivalent to EU EcoDesign Tier 2 at 60Hz operation. Available with 13.8kV primary (standard for Saudi indoor installations), 480V or 400V secondary, and optional electrostatic shielding for IT load applications in data centers.
MV Metal-Clad Switchgear
KYN28KYN28-12 and KYN61-40.5 indoor metal-clad switchgear with withdrawable vacuum circuit breakers for utility and industrial MV distribution. The metal-clad compartmentalized design provides separate compartments for busbar, circuit breaker, cable connection, and low-voltage control — each with independent pressure relief vents — ensuring arc fault containment and operator safety per IEC 62271-200 classified as LSC-2B service continuity and AFLR internal arc classification. Standard configuration includes vacuum circuit breakers (VCBs) rated 630-3150A busbar, 25-40kA breaking capacity with spring-charged stored energy operating mechanism, microprocessor-based multifunction protection relays (overcurrent, earth fault, undervoltage/overvoltage, directional protection options), and fully interlocked mechanical and electrical safety systems preventing maloperation. For Saudi Arabian installations, our KYN28-12 units are configured for 13.8kV nominal voltage (12kV rated equipment class), 60Hz system frequency with VCB mechanism timing verified for 60Hz reclosing sequences per SEC DMS specifications, and communication interfaces supporting IEC 61850 (GOOSE messaging and MMS reporting), Modbus RTU/TCP, and DNP3 protocols for SEC SCADA integration. VT and CT compartments accommodate SEC-specified instrument transformer ratios and accuracy classes. All panels include anti-condensation space heaters with hygrostat control for humidity protection during Saudi coastal nighttime conditions, and mimic diagrams with LED position indicators for intuitive operator interface.
Prefabricated Substations
YBYB Series prefabricated substations integrate MV switchgear, a distribution transformer, and an LV board in a factory-assembled enclosure. For Saudi projects, the frequency, voltage ratio, ambient design, ventilation, corrosion class, sand protection, metering provisions, internal-arc requirement, and factory tests are configured from the approved single-line diagram and technical schedule. Utility acceptance and conformity documents remain project-specific.
Utility Distribution
Primary and secondary distribution transformers for SEC substations and feeder networks — 13.8kV/0.4kV oil-immersed and dry-type units configured for pole-mounted, pad-mounted, and indoor substation installations per SEC standard design details.
Solar PV Plants
Step-up transformers (0.48kV or 0.8kV to 33kV) and MV metal-clad switchgear for grid-connected solar farms with SEC Grid Code compliant reactive power capability and harmonic filtering for inverter-based generation interconnection.
Desalination Plants
High-corrosion-resistant transformers with C5-M marine coating system (zinc-rich epoxy primer, high-build epoxy intermediate, polyurethane topcoat) for coastal desalination facilities exposed to extreme salinity and humidity on the Red Sea and Arabian Gulf coasts.
Petrochemical Facilities
High-temperature-rated transformers with Class H insulation and arc-resistant switchgear for SABIC and other petrochemical processing plants in Jubail and Yanbu industrial cities, including hazardous area classification considerations.
Data Centers
Dry-type cast resin transformers such as SCB18 with silicon steel high-efficiency core design, low noise construction, and electrostatic shielding for hyperscale data center power distribution in Saudi Arabia's emerging digital infrastructure hub.
Construction & Mega-Projects
Temporary power solutions including YB Series mobile compact substations and containerized power packages for NEOM, Red Sea Project, and other giga-project construction camps and batch plant operations with rapid deployment capability.
Typical 20MVA Utility Substation — Saudi Grid
Reference dual-transformer indoor distribution concept with N-1 redundancy, MV and LV switchgear, power-factor correction, and SCADA interfaces. Voltage, capacity, 60Hz performance, ambient design, protection, accessories, and purchaser requirements must be verified against the issued project specification.
| Equipment | Qty | Specification |
|---|---|---|
| Power Transformer | 2 | S22-M 10/13.8 MVA, 13.8/0.4kV, ONAN, 60Hz |
| MV Switchgear (Primary) | 1 set | KYN28-12, 13.8kV, 1250A, 31.5kA, vacuum CB |
| MV Switchgear (Secondary) | 1 set | KYN28-12, 13.8kV, 630A, 25kA, vacuum CB |
| LV Main Distribution Panel | 2 sets | GCS withdrawable, 400V, 3200A, 65kA |
| Capacitor Bank | 2 sets | Automatic PFC, 600kVAR per bank, 6-step |
| SCADA & Protection | 1 system | Microprocessor relays, IEC 61850, RTU integration |
Q: Do your transformers support Saudi Arabia's 60Hz grid?
Yes. A transformer can be engineered and tested for 60Hz when that frequency is specified at RFQ stage. The approved design confirms the voltage ratio, flux density, losses, impedance, temperature rise, cooling auxiliaries, and protection settings. The final test report records the agreed routine tests at the rated frequency; any purchaser witness, special test, or third-party review is added only when included in the order.
Q: Can you support SASO or SABER documentation?
Yes. We can prepare the available technical file, factory test records, product labels, declarations, and shipment documents, then coordinate with the buyer and a qualified conformity-assessment provider. The product category, registration route, certificate scope, inspection, energy-efficiency requirement, and importer responsibility are verified for the exact model and shipment. We do not claim pre-registration or a current certificate unless the relevant evidence is reviewed and matched to that scope.
Q: What is the typical lead time for a 1000kVA transformer to Saudi Arabia?
Lead time is quoted after ratings, drawings, accessories, test scope, documentation route, packing, and freight method are confirmed. The quotation separates manufacturing time from third-party conformity assessment, sea or air freight, customs, and inland delivery. No fixed SABER or customs-clearance time is promised before the responsible provider and importer confirm the route.
Q: Do you provide installation supervision in Saudi Arabia?
Remote technical support is available. On-site supervision, commissioning support, travel timing, test equipment, visa arrangements, safety requirements, and coordination with a locally qualified contractor can be quoted after the equipment and site scope are confirmed.
Q: Can you customize enclosures for desert conditions?
Absolutely. Our desert-duty customization package includes: enhanced corrosion protection with C4 (inland) or C5-M (coastal) paint systems per ISO 12944 applied over SA 2.5 blast-cleaned steel surfaces, typically comprising zinc-rich epoxy primer (75μm), high-build epoxy intermediate coat (150μm), and aliphatic polyurethane topcoat (50μm) supporting long-term durability in desert environments; sand and dust filtration using inertial-type sand-trap louvers or fine mesh stainless steel filters (G3/G4 rating per EN 779) on all ventilation openings to prevent fine sand ingress while maintaining required airflow; solar radiation protection through double-layer roof design with ventilated air gap, 300mm extended sun shield canopies on all four sides, and white or light-colored high-reflectivity topcoat finishes (TSR >70%); high-temperature design including Class H (180°C) insulation systems for dry-type units, high-temperature gasket materials (fluorocarbon/Viton), and oil-immersed transformer cooling calculations verified for 55°C maximum ambient with 65K oil temperature rise; and specialized accessories such as stainless steel (316 grade) fasteners and hinges, padlockable tamper-resistant doors with three-point latching, anti-condensation space heaters with hygrostat control for humidity management during nighttime temperature drops, and bilingual English-Arabic safety warning labels and operation instructions. Each enclosure design is reviewed against project-specific site conditions considering proximity to coastline (salt spray zone classification), sand dune migration patterns, and maximum recorded ambient temperature plus solar radiation intensity for the specific installation location.
Q: What are the common project scenarios for transformer supply to Saudi Arabia?
Common enquiries include utility distribution, solar collector systems, and desalination or industrial power distribution. Each requires a different voltage ratio, impedance, protection scheme, environmental design, coating system, test scope, and document set. We review the issued specification and prepare a compliance or deviation matrix; authority and end-user acceptance remain project-specific.
Q: What shipping and customs documentation can you support?
We can coordinate export packing and prepare the commercial invoice, packing list, bill of lading instructions, product technical file, and available origin or test documentation. The importer and appointed broker confirm HS classification, attestation, SASO or SABER requirements, duties, customs entry, and inland transport. Route, timing, insurance, oversized-cargo handling, and clearance services are stated in the order instead of assumed.
Q: What after-sales support and warranty do you provide?
Warranty duration, covered parts, labor, freight, commissioning date, and exclusions are stated in the quotation and contract. Remote diagnostic support is available. On-site response, spare-parts availability, local inventory, annual maintenance, travel, and turnaround time are quoted only after the installed equipment and service location are confirmed.
Q: What voltage standards and MV distribution levels are used in Saudi Arabia's power grid?
Saudi Arabia's electrical grid operates at 60Hz frequency with a standardized voltage hierarchy. At the transmission level, SEC operates 380kV and 230kV as the backbone network for bulk power transfer over long distances across the Kingdom, connecting generation centers in the Eastern Province to major load centers in Riyadh (Central Region), Jeddah/Makkah (Western Region), and the Southern Region. The sub-transmission level operates at 132kV and 110kV for regional power distribution to primary substations. At the medium voltage distribution level — which is most relevant for our transformer supply scope — the standard voltages are 33kV and 13.8kV. The 13.8kV level is the most common MV distribution voltage, serving as the primary side for distribution transformers (100-2500 kVA) supplying 400V/230V or 380V/220V low-voltage networks for commercial, residential, and light industrial loads. The 33kV level is commonly used for primary substation distribution, industrial facility supply, and solar farm collector networks. Some older industrial facilities and remote installations may still use 11kV or 6.6kV, but these are being phased out under the grid modernization program. Our transformer windings are specifically designed for these standard Saudi voltages: 13.8kV delta primary is our most common configuration for the Saudi market, with 400Y/230V secondary for 4-wire LV distribution. All MV equipment ratings are selected for 12kV or 36kV rated voltage class (Um) respectively for 13.8kV and 33kV nominal system voltages, with appropriate BIL (basic insulation level) of 75kV for 12kV class and 170kV for 36kV class equipment per IEC 60076-3, suitable for the moderate lightning activity in most of Saudi Arabia.
Q: When is the Saudi conformity route confirmed?
It is confirmed before order after the product classification, model, shipment value, importer, destination, and current regulatory scope are reviewed with a qualified conformity-assessment provider. We provide the available technical and shipment documents and support agreed inspections. Certificate issue, platform registration, customs clearance, and timing remain controlled by the responsible third parties.
Solar Farm Power Distribution
Complete MV/LV power distribution solutions for utility-scale solar farms — step-up transformers, MV switchgear, and grid interconnection equipment optimized for Saudi Arabia's 60Hz solar parks.
Learn more →Industrial Power Distribution
Heavy-duty power distribution for petrochemical, desalination, and mining facilities — high-temperature-rated transformers with C4/C5 corrosion protection for harsh desert industrial environments.
Learn more →Data Center Power Architecture
High-efficiency dry-type transformers and redundant LV switchgear for hyperscale data centers — low noise, N+1 configurations, and 60Hz optimized designs for Saudi's emerging data center hub.
Learn more →Saudi Utility Distribution Reference
Reference 13.8kV/0.4kV distribution configuration for a 60Hz utility project. Transformer ratings, accessories, enclosure, routine and type-test evidence, purchaser schedules, and Saudi conformity documents must be confirmed for the actual tender and shipment.
Coastal Desalination Power Reference
Reference coastal configuration using oil-immersed transformers and GCS LV switchgear. Corrosion category, coating thickness, stainless hardware, fault rating, protection, and test evidence are selected from the actual salinity, humidity, UV exposure, load, and consultant requirements.
Need a Transformer Supplier for Saudi Arabia?
Tell us the voltage, capacity, quantity, destination, importer, and tender specification. We will identify the applicable technical documents and Saudi conformity steps before quotation.