Oil immersed Grounding Transformer for System Safety 10kV 20kV 22kV

  • Oil immersed Grounding Transformer for System Safety 10kV 20kV 22kV
Key attributes
Brand Vziman
Model NO. Oil immersed Grounding Transformer for System Safety 10kV 20kV 22kV
Rated capacity 400kVA
No-load loss 387W
Series S
Product descriptions from the supplier
Description

Industrial earthing transformers product Description

The adoption of IEC-standard medium-high voltage distribution transformers—including industrial earthing transformers and oil immersed grounding transformer (10kV-72.5kV, 500kVA-30MVA)—has grown significantly in North America (traditionally NEMA/IEEE-dominated). Driven by cross-border energy projects and compatibility needs, the oil immersed grounding transformer serves as core stable equipment.
Approximately 37% of North American offshore wind farms and cross-border projects (e.g., U.S.-Canada Atlantic Loop) require IEC 60076/60099-compliant equipment, including oil immersed grounding transformer and industrial earthing transformers. Modern IEC oil immersed grounding transformer adopts dual-parameter designs, meeting 60Hz H-class insulation (per ANSI C57.12.00) and North American BIL requirements.

oil immersed grounding transformer product Parameters

10/20kV Distribution Transformer

Rated Power (kVA) High Voltage (kV) Low Voltage (V) No-Load Loss (W) On-Load Loss (W) Connection Symbol    Impedance Voltage
100 10/20 or others 800
600
400
or others
130 1250 Dyn11/YNd11 4%
160 189 1750 4%
250 270 2350 4%
400 387 3250 4%
630 540 4600 4%
800 585 6000 6%
1000 693 7600 6%
1250 855 9500 6%
1600 1080 12000 6%
2000 1305 15000 6%
2500 1575 18500 6%
3150 1980 23000 6%

Industrial earthing transformers standard Features

  • Indoor/outdoor installable oil immersed grounding transformer, fitting industrial earthing transformers in North American wind farms, data centers
  • Temperature: -30ºC to +40ºC, ensuring stable operation of both products in extreme climates.
  • Humidity: Monthly avg 95%, daily avg 90%; sealed oil immersed grounding transformer resists moisture.
  • Altitude ≤2000m (adjustable for higher areas) for reliable performance of both products.
  • Max wind speed 35m/s; robustoil immersed grounding transformer suits outdoorindustrial earthing transformers.
  •  No corrosive/flammable gases, ensuring safe operation of both products in industrial zones.
  • No frequent vibration, protecting internal components of oil immersed grounding transformer and industrial earthing transformers.

Oil immersed grounding transformer our Advantages

  • Comprehensive Certifications:Vziman specializes inindustrial earthing transformers and oil immersed grounding transformer, offering customization for IEEE/ANSI, IEC, CSA and other standards. Our certified (UL/cUL, CSA, CESI) oil immersed grounding transformer and industrial earthing transformers ensure smooth North American market access.
  • Strict Quality Control:Vziman strict quality control covers the entire process of oil immersed grounding transformer and industrial earthing transformers production. Regular UL third-party inspections ensure consistent quality, critical for industrial earthing transformers’ long-term reliability.
  • Premium After-Sales Service
a. 24-month warranty; prompt after-sales solutions for oil immersed grounding transformer and industrial earthing transformers issues.
b. Local teams offer professional installation, commissioning and maintenance for both products in North America and beyond.
c. Remote video guidance for installing oil immersed grounding transformer and industrial earthing transformers.
FAQ
Q: How does the oil immersed grounding transformer enhance system reliability compared to other grounding methods in industrial settings?
A:

Unlike solid or resistive grounding methods, the oil-immersed grounding transformer provides a balanced approach to fault management. It suppresses transient overvoltages and dampens resonance risks in networks. As a durable industrial earthing solution, this transformer type requires minimal maintenance due to its sealed oil insulation system, which prevents moisture ingress and oxidation. Its design prioritizes long-term reliability, ensuring continuous protection for personnel and equipment in critical operations.

Q: What are the key safety features of an oil immersed grounding transformer in medium-voltage industrial power systems?
A:

The oil immersed grounding transformer is engineered with a sealed tank design and mineral oil insulation, which provides superior arc suppression and thermal stability under fault conditions. For industrial earthing applications, these transformers offer critical safety through reliable neutral grounding, reducing step-and-touch potentials while limiting ground fault currents. Their robust construction ensures stable operation in harsh environments, making them ideal for factories, mining sites, and utility substations.

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