• Primary Equipment Testing

Power Generation to the User

During commissioning or periodical inspections, we test the installed primary equipment.

Our engineers test instrument transformers for polarity and phase allocation respectively the allocation of protection and measurement cores to the correct device. We also measure values for the protection calculations like for example the impedance of an overhead lines for the parametrisation of a distance protection relay or the grounding impedance or step voltage for the safety review of an installation.

Examples of Services and Prices for Primary Testing

Base Testing
Follow-up Testing
In the price calculation, the base price is calculated for the most expensive test and the price for a follow-up test for all other tests.
Current Transformer
CHF 1600.-
CHF 800.-

Testing of three current transformers with one core each. Basis for the fix price offer is the available documentation of the protection cabinet and good accessibility of the current transformers.

The fix price includes time for preparation and documentation on INP standard test protocols, 2 hours for site specific training and introduction, expenses and accommodation if required as well as the journey up to 50km from CH-5400 Baden.

Scope of Testing
  • Isolation test
  • Ratio and phase angle
  • Winding resistance
  • CT Polarity
  • CT excitation and saturation
  • Burden impedance
  • Estimated Time for the tests approx. 3h
Voltage Transformer
CHF 1600.-
CHF 800.-

Testing of three single phase voltage transformers with one core each. Basis for the fix price offer is the available documentation of the protection cabinet and good accessibility of the voltage transformers.

The fix price includes time for preparation and documentation on INP standard test protocols, 2 hours for site specific training and introduction, expenses and accommodation if required as well as the journey up to 50km from CH-5400 Baden.

Scope of Testing
  • Isolation test
  • Ratio
  • Burden measurement
  • Estimated Time for the tests approx. 3h
Lines
CHF 4300.-
CHF 2700.-

Measurement of the parameters of one power line.

The fix price includes time for preparation and documentation on INP standard test protocols, 2 hours for site specific training and introduction, expenses and accommodation if required as well as the journey up to 50km from CH-5400 Baden.

Scope of Testing
  • Measurement of the Line impedance
  • Measurement of the k factor
  • Measurement of the mutual coupling between parallel lines
  • Measurement of the coupling between line and nearby signal cables
  • Estimated Time for the tests approx. 8h (without preparation)
Grounding System
CHF 5400.-
CHF 4800.-

Measurement on one grounding system of a limited size.

The fix price includes time for preparation and documentation on INP standard test protocols, 2 hours for site specific training and introduction, expenses and accommodation if required as well as the journey up to 50km from CH-5400 Baden.

Scope of Testing
  • Measuring of the earth impedance according to DIN VDE 0101, CENELEC HD637S1, IEEE Std 80-2000 and IEEE Std 81-1983 using the frequency selective method
  • Measurement of step- and touch voltage using the fall of potential method (IEEE) or current-voltage method (CENELEC)
  • Estimated Time for the tests approx. 8h (without preparation)

Service enquiry

 

Services included

  • Preparation / Follow-up
  • Safety training of 2h
  • Orientation onsite
  • Expenses and accommodation (if necessary)
  • Travel time up to 50 km from Baden CH

Services not included

  • Additional work due to incomplete documentation
  • Involuntary waiting times
  • Organizational works such as requests for isolation or coordination meetings with third parties
  • Interface testing