transformer bushing faq

Frequently Asked Questions

Technical Questions

Environmentally Friendly: These products do not require oil or other potentially hazardous liquids for insulation.
Reduced Maintenance: Solid insulation materials reduce the likelihood of leaks or degradation, lowering maintenance costs.
Safety: Dry-type products are safer because they eliminate the risks associated with oil-based equipment.
Compact Design: They are often more compact and lighter than oil-based alternatives, which can make installation easier and reduce space requirements.
Reliable Performance: Dry-type components offer long-lasting, reliable performance under typical operating conditions.

Choosing the right bushing depends on several factors:

Voltage Level: Ensure that the bushing is rated for the voltage you are working with.
Current Capacity: Make sure the bushing can handle the amount of current flowing through it.
Environmental Conditions: Consider factors like humidity, temperature, and exposure to chemicals when selecting the material of the bushing.
Type of Equipment: Whether you are using a transformer, GIS system, or switchgear will also influence your choice.

Dry-type bushings are typically made from high-quality materials such as:

Epoxy resin: Often used for insulating materials due to its strong dielectric properties and durability.
Porcelain or ceramic: These materials provide excellent insulation and are resistant to high temperatures.
Composite materials: Some bushings use a combination of polymer and other materials to improve strength and resistance to environmental factors.

The lifespan of dry-type power products can vary depending on the quality of materials, environmental conditions, and the level of maintenance. However, these products are typically designed to last 20-30 years with proper care and maintenance.

Other Questions

  • Rated Voltage
  • Rated Current
  • Rated Frequency
  • External Insulation Creepage Distance and Insulation Clearance
  • Oil End Length
  • CT Installation Position Length (important)
  • Rated Transformation Ratio (current transformer)
  • Number of Secondary Windings (current transformer)
  • Rated Output (current transformer)
  • Accuracy Class(es) (current transformer)
  • Accuracy Limit Factor (current transformer)
  • Instrument Security Factor (current transformer)

Altitude: Applicable to areas with an altitude of 1000m or less. When the altitude exceeds 1000m, the technical conditions shall be negotiated by both parties.
Ambient Temperature: Applicable to the maximum ambient temperature not exceeding +50℃ and the minimum ambient temperature not less than -60℃. When the temperature exceeds this, the technical conditions shall be negotiated by both parties.
Pollution Level: Applicable to areas with heavy pollution above Ⅲ

30% deposit, remaining 70% before shipment

40-60 days after order is placed

Dry-type High Voltage Transformer Bushings Manufacturer

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