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Embedded Ceramic Insulation Posts with High Mechanical Strength and Excellent Dielectric Performance for Epoxy-Cast Instrument Transformers

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Embedded Ceramic Insulation Posts with High Mechanical Strength and Excellent Dielectric Performance for Epoxy-Cast Instrument Transformers

Model Number : DG-E/L/C-E33M20

Voltage Rating : 2000V

Accuracy : 0.5P

Capacitance At : 1V ,1kHz ,(20-25)℃ 150PF±10%

Payment Terms : L/C,T/T

Voltagerating : 100V to 10kV

Lead Wire : Φ0.48mm

Termination : Tin/Lead or Lead-Free

Price : Negotiable

Voltage Withstanding : 70kV ,50Hz ·1min

Application : Ring main unit

Supply Ability : 3,000,000 pcs a year

Dielectric Losse : 1V，1KHz (20-25)℃ ＜ 0.0040

Productname : High Voltage Ceramic Capacitor

MOQ : 100

Delivery Time : 25~30 workday

Dimension : T: 22.0mm

Life : 10 years

Function : Take electricity, accurate measurement

Packaging Details : Carton

Applications : High voltage power supplies, pulse circuits, medical equipment

Withstanding voltage : 50Hz 42kV ·1min (HV-Earthing)

Place of Origin : XIAN, CHINA

Capacitance : high voltage STD=250pF

Certification : ISO9001,ISO14001,ISO45001,CCC

Working Temperature Range : 50℃~+125℃

Brand Name : XIWUER

Mounting Type : Through Hole

Rated frequency : 50/60Hz

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Embedded Ceramic Insulation Posts | High Strength Support Insulators for Epoxy-Cast Instrument Transformers

Our embedded ceramic insulation posts are structural insulating components designed to be cast inside epoxy-resin current and voltage transformers. These ceramic posts provide mechanical support for internal winding assemblies while maintaining superior dielectric performance within the cast resin body.

Unlike pure resin structures, our ceramic-reinforced posts offer higher thermal conductivity, better dimensional stability and enhanced partial discharge performance—a preferred solution for premium-grade instrument transformers used in utility and industrial switchgear.

Key Features
  • High mechanical strength for winding support
  • Excellent dielectric performance within epoxy matrix
  • Low thermal expansion, matching epoxy resin properties
  • Smooth surface for optimal resin adhesion
  • Custom geometries: cylindrical, stepped, flanged designs
  • Ultra-low partial discharge when embedded in cast resin
  • Suitable for 12kV to 40.5kV instrument transformers
Applications
  • Epoxy-cast current transformers (CT)
  • Epoxy-cast voltage transformers (VT)
  • Combined transformers (metering units)
  • Indoor MV switchgear instrument transformers
  • Post-type insulation support in resin-insulated assemblies
Technical Specifications
Parameter Value
Voltage Class 12kV - 40.5kV
Material High-alumina ceramic / steatite ceramic
Dielectric Strength ≥ 25kV/mm
Compressive Strength ≥ 800 MPa
Thermal Conductivity ≥ 2.0 W/(m*K)
Surface Finish Glazed / unglazed (custom)
Customization Diameter, length, end face geometry

Product Tags:

embedded ceramic insulation posts

      

high mechanical strength ceramic posts

      

epoxy-cast instrument transformer posts

      
Quality Embedded Ceramic Insulation Posts with High Mechanical Strength and Excellent Dielectric Performance for Epoxy-Cast Instrument Transformers for sale

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