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Contact Person : Wang Hong
Phone Number : +8615891045672

High Voltage Ceramic Capacitor Rod (VDIS Ceramics) for 3.6kV–40.5kV Systems with Ultra-low Partial Discharge and High Insulation Resistance

Place of Origin XIAN, CHINA
Brand Name XIWUER
Certification ISO9001,ISO14001,ISO45001,CCC
Model Number CT8-2-24kV-500pF
Minimum Order Quantity 100
Price Negotiable
Packaging Details Carton
Delivery Time 25~30 workday
Payment Terms L/C,T/T
Supply Ability 3,000,000 pcs a year
Product Details
Mounting Type Through Hole Voltage Rating 2000V
Working Temperature Range 50℃~+125℃ Capacitance 10pF To 1µF
Dimension T: 22.0mm Voltage Withstanding 70kV ,50Hz ·1min
Voltagerating 100V To 10kV Dielectric Losse 1V,1KHz (20-25)℃ < 0.0040
Life 10 Years Applications High Voltage Power Supplies, Pulse Circuits, Medical Equipment
Productname High Voltage Ceramic Capacitor Lead Wire Φ0.48mm
Application Glaze, Paint, Zirconia Silicate Capacitance At 1V ,1kHz ,(20-25)℃ 150PF±10%
Termination Tin/Lead Or Lead-Free
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Product Description
Ceramic Capacitor Rods (VDIS Ceramics) for High Voltage Presence Indicating Devices | 3.6kV–40.5kV
Product Overview

Our high-performance ceramic capacitor rods (VDIS ceramics) are precision-engineered core components for high voltage presence indicating devices (VPIS/VDIS) in medium-voltage (MV) switchgear. Designed to meet the strict demands of 3.6kV to 40.5kV systems, these rods ensure accurate voltage detection with ultra-low partial discharge, stable insulation resistance, and reliable long-term operation.

Made with high-grade ceramic dielectric materials, our VDIS rods deliver consistent capacitance values, low dielectric loss, and excellent temperature stability, making them ideal for both indoor and outdoor MV equipment assemblies.

Key Features
  • Voltage range: 3.6kV to 40.5kV, covering all common MV applications
  • Ultra-low partial discharge: ≤ 10pC at specified test voltages (down to 5pC at 1.1× rated voltage)
  • Extremely low dielectric loss: ≤ 0.0040 (tested at 1kHz, 1V)
  • High insulation resistance: ≥ 1.0×10⁵ MΩ (1VDC / 1min)
  • Excellent lightning impulse withstand capability (up to 185kV peak)
  • Temperature characteristics: 2D4 (Y5T), 2B4 (Y5P), DL series available
  • Custom screw thread options: M4, M5, M6, M8, M10, M12, M16
  • Custom dimensions and capacitance values available upon request
  • Compliant with DL/T538-2006 and JB/T10305-2001 standards
Applications
  • High voltage presence indicating devices (VPIS/VDIS)
  • Capacitive voltage sensors and voltage dividers
  • Medium voltage (MV) switchgear, ring main units (RMUs), and cubicles
  • Epoxy-cast instrument transformers
  • 3.6kV / 7.2kV / 12kV / 24kV / 40.5kV power distribution systems
Technical Specifications
Parameter Details
Rated Voltage 3.6kVAC, 7.2kVAC, 12kVAC, 24kVAC, 40.5kVAC
Nominal Capacitance Range 4pF to 500pF (customizable)
Dielectric Loss ≤ 0.0040 (1kHz, 1V ±0.2V)
Insulation Resistance ≥ 1.0×10⁵ MΩ (1VDC / 1min)
Partial Discharge ≤ 10pC / ≤ 5pC (at specified test voltages)
Lightning Impulse Withstand 40kV to 185kV (1.2/5μs wave)
Test Standard DL/T538-2006, JB/T10305-2001