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Changsha Power Electric Co.,Ltd. 86-731-8465-7833;
Porcelain 12.5kN C12.5-950 Transformer Surge Arrester

Porcelain 12.5kN C12.5-950 Transformer Surge Arrester

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    C12.5-950 Transformer Surge Arrester


    12.5kN Transformer Surge Arrester


    C12.5-950 Transformer Lightning Arrester

  • Color
    Gray, Brown
  • Material
    Porcelain C-110
  • Application
    Transmission And Distribution Of Electric Power
  • Standard
  • Product Name
    Transformer Porcelain Bushing
  • Sample
  • Oem
  • Pack
    Standard Export Packing
  • Place of Origin
  • Brand Name
  • Model Number
  • Minimum Order Quantity
  • Price
  • Packaging Details
  • Delivery Time
  • Payment Terms
    T/T, L/C
  • Supply Ability

Porcelain 12.5kN C12.5-950 Transformer Surge Arrester

IEC standard 36kV porcelain power transformer Lightning Arrester Insulator
Basic Insulator Level(Kv) 950
IEC Post Insulator Designation C4-950Ⅲ C6-950Ⅱ C6-950Ⅲ C8-950Ⅲ C12.5-950Ⅲ
Cat. No. 36946 36908 36976 36974 36902
Creepage Distance (mm) 6300 4900 6300 6300 6300
Failing Load Bending (kN) 4 4 6 8 12.5
Torsion (kN.m) 3 3 3 4 6



H (mm) 2100 2100 2100 2100 2100
φD (mm) 233 222 255 255 266
Top a1 (mm) 4-M16 4-M16 4-M16 4-M16 4-M16
φd1 (mm) 127 127 127 127 127
Bottom a2 (mm) 4-φ18 4-φ18 4-φ18 8-φ18 8-φ18
φd2 (mm) 200 225 225 254 275
Impulse Withstand Voltage (kV) 950 950 950 950 950
Wet Operation Impulse Withstand Voltage(kV) 750 750 750 750 750
Wet Power Frequency Withstand Voltage(kV) 395 395 395 395 395
Net Weight, Each, Approx(kg.) 136 122 145 148 173



The transformer sleeve is the main insulating device outside the transformer box. The lead wire of the transformer winding must pass through the insulating sleeve to insulate the lead wire between the lead wire and the lead wire between the transformer shell, and to fix the lead wire at the same time.Due to different voltage levels, the insulation sleeve has pure porcelain sleeves, oil-filled sleeves and capacitive sleeves.Pure porcelain bushing is mostly used for transformers of 10kV and below.





The transformer bushing is to lead the high and low voltage leads inside the transformer to the outside of the oil tank, not only as the lead to ground insulation, but also plays a role of fixing the lead.

Competitive Advantage:

1.Efficient and fast responses are pre-requisite.

2.Maintain composure and patience in the face of difficult situations of clients.

3.Training of introduction of equipments are offered according to client's demand.

4.Build up long-term and stable partnerships, and constantly provide high-quality products.

5.Equipments are guaranteed up to one year and an overall after-sales service is provided.