KONCAR - Model RWFDS -Rotor Winding Fault Detection Sensor
RWFDS represents a new concept in rotor winding fault detection. This smart sensor enables detection of inter coil short circuits in rotor excitation winding based on the differential magnetic field measurement method (DMFM) inside the machine air gap. The DMFM method eliminates the contribution of the magnetic field present in the symmetric machine from the measuring signal and in that way the output signal depends only on the magnetic field produced by the fault. By using two magnetic field sensors embedded on the stator, inside the machine air gap, RWFDS enables rotor winding inter coil short detection with much higher price/performance ratio than other similar systems.
- On-line analysis
- Digital output (alarm)
- Waveform extraction for detailed analysis
- HMI
Architecture:
- One channel acquisition unit with real time controller (multiple channels on request)
Inputs and outputs:
- Voltage input (for magnetic field sensors)
- Digital output (for alarm and warning)
Communication:
- RS – 232, wireless (on request)
Data indicators:
- LED indicator for power supply and digital outputs
Data logging:
- Flash memory
Power supply:
- 24 ± 10 % VDC, (50 mA)
Temperature range:
- Operational temperature range: -25°C to +85°C
Standard compliance:
- EMC immunity/emission (EN 61000-6-4)
- Vibration/shock resistance (EN 60068 - 2 - 6/EN 60068 - 2 - 27/29)
Installation:
- On machine housing