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Selected Kno sm cards 742x555 partial discharge coupling
Kno sm cards 742x555 partial discharge coupling

Product Overview

Features

  • Voltage ratings from 1000 VDC to 35,000 VDC
  • Capacitance values from 40 pF to 1nF
  • Operating temperature range: −55°C to +125°C
  • High-voltage rating suitable for insulation monitoring
  • Capacitance values optimized for partial discharge detection
  • Low inductance design for accurate high-frequency signal coupling
  • Stable performance across wide temperature ranges
  • Compatible with standard PD measurement equipment 

Benefits

  • Enables early detection of insulation degradation
  • Improves reliability of high-voltage equipment through predictive maintenance
  • Reduces risk of catastrophic failure by identifying partial discharge activity
  • Supports compliance with IEC 60270 and other PD testing standards
  • Simplifies integration into existing monitoring systems 

Target Applications

  • Partial discharge testing in power transformers
  • Condition monitoring of high-voltage switchgear
  • Insulation testing in rotating machines
  • Cable testing and diagnostics
  • High-voltage laboratory test setups 

Specifications

Part Number
297200B501JO7
Capacitance
500pF
Diameter
4.600 / 4.750 in 116.8 / 120.7 mm
Length
4.938 / 5.062 in 125.4 / 128.6 mm
Inductance
300nH
AC Voltage
4 kV rms Phase-to-Ground (10-1000 Hz)
Product
Mica Capacitor
Product Type
Partial Discharge Coupling
Range
297
Brand
Cornell Dubilier

Product Documentation

Datasheets

Design Files

3D Models

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