Earthing (Grounding) Transformers
Earthing transformers providing an artificial neutral point for unearthed or delta-connected MV systems — enabling reliable ground-fault detection, controlled fault clearance, and protection coordination in industrial and renewable networks.
Engineering Features
Zigzag or Star-Delta Winding
Standard zigzag configuration for compact footprint, or star-delta with separate auxiliary winding when station service is required.
Technical Data
| Parameter | Range / Value |
|---|---|
| Rated Power | 50 kVA – 5 MVA (continuous equivalent) |
| System Voltage | Up to 36 kV |
| Frequency | 50 / 60 Hz |
| Winding Type | Zigzag (Z) / Star-Delta (YNd) |
| Short-Time Current | Project-specific (typ. 400–4000 A for 10 s) |
| Cooling | ONAN / KNAN |
| Insulation Class | BIL 75 / 125 / 170 kV per voltage class |
| Auxiliary Winding | Optional 230/400 V |
| Standards | IEC 60076-6 / IEEE C57.32 / IEEE C62.92 |
| Design Life | 30+ years |
Standard range parameters — custom specifications available on request.
DEWA Approved
Dubai Electricity & Water Authority vendor
ADDC / AADC
Abu Dhabi Distribution Company approved
SEWA / FEWA
Sharjah & Federal Electricity authorities
ADNOC AVL
ADNOC Approved Vendor List
IEC 60076
International standard for power transformers
ARAMCO 17-SAMSS
Saudi ARAMCO material specification
Zigzag and star-delta earthing (grounding) transformers manufactured in Jebel Ali for GCC utility, oil & gas and renewable service. 50 kVA to 5 MVA at up to 36 kV per IEC 60076-6 — providing an artificial neutral on ungrounded systems and supporting NER / fault-current limitation. Used at DEWA, ADWEC, SEC distribution sites, ADNOC and ARAMCO process plants and GCC renewable IPPs.
DEWA Distribution Network Neutral Grounding
ADNOC Plant & Field Earthing · UAE
Saudi Aramco Process-Plant Earthing
MBR Solar Park IPP Grounding · Dubai
GCC Petrochemical Plants · YASREF, SATORP
Saudi Vision-2030 Mega-Project Earthing
Where Earthing (Grounding) Transformers Excel.
DEWA Distribution Neutral Grounding
IEC 60076-6 zigzag earthing transformers for DEWA, ADWEC and SEC distribution networks — providing artificial neutral on ungrounded systems.
ADNOC & ARAMCO Plant Earthing
Star-delta earthing transformers for ADNOC and Saudi Aramco upstream and process plants — IT-system grounding and NER fault-current limitation.
MBR Solar Park IPP Grounding
Earthing transformers for the Mohammed bin Rashid Al Maktoum Solar Park collection substations and PV IPP grid-connection systems.
Saudi Vision-2030 Mega-Projects
Zigzag grounding transformers for NEOM, Diriyah and Qiddiya MV distribution requiring artificial neutral on ungrounded systems.
Frequently Asked Questions
Ready to Specify Earthing Transformers?
Share your technical requirements and our engineering team will provide a detailed proposal with guaranteed performance parameters.