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Omicron Switch box

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Hard Case 25kg 70L 40W 40H Hard Case 15kg 45L 35W 35H
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Fully automated 3-phase transformer testing Measurements of ratio, winding resistance and the tap changer became comfortable with the CP SB1. As an accessory to the CPC 100, testing of power transformers over all taps and phases is fully automated. Time consuming rewiring in-between measurements can be avoided.



  • Saves time by comfortably abolishing the need for rewiring
  • Increases safety by reducing the risk of accidents
  • Minimizes the likelihood of measurement errors – performs the ratio and winding resistance tests automatically



  • Multiplexes the CPC 100 outputs to all phases of a power transformer and vice versa
  • Quickly discharges the transformer between measurements
  • Operates the tap changer, so measurements can be performed without the need for user interaction CPC 100 plus CP SB1

The CP SB1 is an accessory for the CPC 100 and simplifies measurement of three-phase power transformers.

The switchbox CP SB1 reduces wiring work at power transformers. Thereby, the time needed for testing can be reduced and, at the same time, safety can be significantly increased.

The transformer ratio and winding resistance are automatically measured in all three phases (in sequence) in all tap changer positions. The measurement results are recorded by the CPC 100 and can be analysed with the accompanying software package.


Operation: Front of CPC 100 or PTM software

Operating temperature range: 0 °C … +35 °C Nominal temperature range: 18 °C … +28 °C Storage temperature range: -30 °C … +60 °C

Measurements: Dimensions: 240 mm (W) x 220 mm (D) x 90 mm ( H )

Weight: 25 kg with accessories

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