Three-Phase Copper Oil Immersed Distribution Grounding Transformer 6.9kV 7.2kV 11 KV
| Brand | Vziman |
| Model NO. | Three-Phase Copper Oil Immersed Distribution Grounding Transformer 6.9kV 7.2kV 11 KV |
| Rated voltage | 11kV |
| Rated frequency | 50/60Hz |
| Rated capacity | 500kVA |
| Series | JDS |
- Premium Copper Winding & Oil-Immersed Insulation：This oil immersed grounding transformer adopts high-purity copper windings with segmented cylindrical structure, ensuring low loss and high conductivity during operation. As a specialized distribution grounding transformer, it leverages high-grade mineral insulating oil to deliver superior insulation performance and heat dissipation efficiency, effectively extending the service life of the distribution grounding transformer in medium-voltage power systems.
- Three-Phase Structure for Stable Grounding Protection：The three-phase design of this oil immersed grounding transformer enables balanced current distribution, making it a reliable distribution grounding transformer for 6kV–35kV distribution networks. It can quickly establish an artificial neutral point for ungrounded systems, limit fault current during single-phase grounding, and enhance the overall stability of power grids.
- Dual-Application Compatibility & Standard Compliance：This distribution grounding transformer integrates the functions of distribution and grounding protection, suitable for substations, industrial parks and residential distribution stations. The oil immersed grounding transformer variant complies with IEC, ANSI and other international standards, undergoing rigorous full-acceptance testing to maintain a zero-fault operation record in diverse working environments.
- Low Maintenance & Durable Sealed Design：The fully sealed tank structure of this oil immersed grounding transformer prevents oil leakage and external contamination, minimizing daily maintenance workload for the distribution grounding transformer. Equipped with corrugated fins for natural cooling, it operates stably without additional cooling equipment, making it a cost-effective choice for long-term deployment.
Scope of Supply
- Product: Oil Immersed distribution Transformer
- Rated Power: Up to 5000 KVA
- Primary Voltage: Up to 35 KV
- Technical Specification
|
Delivered to |
South Africa |
|
Year |
2020 |
|
Model |
S11-1500KVA-11/6.6KV |
|
Type |
Oil Immersed Distribution Transformer |
|
Standard |
IEC60076 |
|
Rated Power |
1.5 MVA |
|
Frequency |
50 HZ |
|
Phase |
Three |
|
Cooling Type |
ONAN |
|
Primary Voltage |
6.9kV 7.2kV 11 KV |
|
Secondary Voltage |
6.6 KV |
|
Winding Material |
Copper |
|
Vector Group |
Dyn11 |
|
Impedance |
6.5% |
|
Tap Changer |
NLTC |
|
Tapping Range |
±2*2.5% @ Primary Side |
|
No Load Loss |
1.6 KW |
|
On Load Loss |
16 KW |
|
Accessories |
Standard Configuration |
|
Remarks |
N/A |
1.5 MVA 11/6.6KV Transformer Conservator
Transformer conservator function:
The conservator is a critical component for oil-filled transformers, including our oil immersed grounding transformer and standard distribution units, available in conventional and corrugated types. When transformer oil expands or contracts with temperature fluctuations, the conservator acts as a storage and replenishment device, ensuring the oil tank remains fully filled at all times. This function is vital for maintaining insulation and heat dissipation performance, whether for a 1.5 MVA distribution grounding transformer or a heavy-duty distribution grounding transformer. Typically, the conservator volume accounts for 8%–10% of the transformer’s total oil content, a specification we strictly follow for all our oil immersed grounding transformer and distribution products.
Finished 1.5 MVA 11/6.6KV Transformer
Packing and Delivery
We had exported our transformers to more than 30 countries in the world, our main market is Africa countries, South and North American countries, and Asia countries.
We have KEMA, CESI, CTQC type test report for our transformers.
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