EL CID Evolution – Electromagnetic Core Imperfection Detection

Offline Testing of Stator Core Inter-Laminar Insulation

Product Overview

The EL CID is the leading instrument for Electromagnetic Core Imperfection Detection to identify inter-laminar insulation breakdown within a stator core.

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Works with the Following Assets
Assists with the Following Type of Monitoring

Stator cores are made of thin laminations of magnetic steel separated by insulation to prevent axial currents. If lamination shorts occur, the high temperatures that result can burn stator coil insulation and even lead to melting of stator cores.

Electromagnetic Core Imperfection Detection (EL CID) testing is accepted world-wide for reliable and safe detection of stator core inter-laminar insulation faults.

The only alternative to the Iris Power EL CID Evolution test is the Ring Flux (full flux) test which requires large power supplies, considerable manpower, and expensive infrared viewing cameras.

Product Details


  • Only one technician is needed to perform the EL CID
  • Safe for core and operator, unlike Ring Flux test which is potentially damaging to the uncooled core
  • Iris Power EL CID Evolution instrument uses an excitation kit to operate the test at only 4% of normal operating flux.
  • Measurement results are digitally store in the PC for analysis and report generation, and faults can be precisely located in the core.
  • Any imperfections in the core inter-laminar insulation produce fault currents which are detected by a Chattock coil and analyzed by the Iris Power EL CID Evolution signal processing unit.
  • Future results can be compared to past results for trend analysis.

The EL CID Evolution includes the following components:

  • EL CID Evolution Test Instrument
  • Chattock Sensors (10, 20, 25 and 30 cm)
  •  Reference Sensor
  •  Magnetic Manual Trolley
  •  Step Iron Trolley
  •  Calibration Unit
  •  Switched Turbo Excitation System
  •  Volt Meter and Clamp-on Ammeter
  •  ELAN CD with Software Licence
  •  Handbook
  •  Wheeled Transit Cases

Get a Quote

Call us at +1 905.677.4824 or Toll Free at +1 888-873-4747 or fill out our online quote form below.

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