Lack of maintenance, operational knowledge or monitoring systems can cause catastrophic failures in large machines and with this in mind, our experts have designed a state of the art system which provides protection, operational information and ongoing monitoring, allowing detection of early signs of deterioration.


Monitors and protects rotor winding

  • Designed for monitoring and protecting the rotor winding of synchronous machines
  • Forms the basis for an ideal protection scheme for synchronous machine rotors
  • Enables the true measurement of fault resistance from 0 to 100kΩ
  • Not influenced by the DC field component of excitation or by high capacitance systems
  • Provides an early warning of deterioration of the rotor insulation, a continuous readout of the rotor earth leakage resistance and winding temperature
  • Being separately powered, the system is active at all times
  • Stores the last 34 hours of recorded data


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Quartzteq GmbH
Bahnhofstrasse 3
CH – 5436 Würenlos