Manufacturer: SKF
Exact Model: TKED 1
Product Category: Condition Monitoring and Predictive Maintenance
Product Type: Non-contact electrical-discharge detector for motor bearings
Product Overview
The SKF TKED 1 detects electrical discharges passing through electric-motor bearings. These discharges—particularly in motors controlled by variable-frequency drives—can cause electrical erosion, bearing fluting, lubricant deterioration and premature failure.
The instrument senses discharge events remotely and displays the number detected during the selected measurement period.
Key Technical Specifications
- Detection method: Remote magnetic-field sensing
- Receiver bandwidth: 50–200 MHz
- Maximum recommended measuring distance: 300 mm
- Measurement periods:
- 10 seconds
- 30 seconds
- Continuous/indefinite
- Display: Backlit LCD
- Counter capacity: 0–99,999 discharge events
- Power supply: 3 × AAA batteries, 4.5 V total
- Automatic switch-off: After approximately five minutes of inactivity
- Operating temperature: 0°C to +50°C
- Storage temperature: –20°C to +70°C
- Environmental protection: IP55
- Case dimensions: Approximately 260 × 85 × 180 mm
- Complete-kit weight: Approximately 0.6 kg
Standard Package
- SKF TKED 1 detector pen
- Circular sensing antenna
- Spare TKED 1-1 antenna
- AAA batteries
- Operating instructions
- Protective carrying case
Marine and Offshore Applications
- VFD-driven motor-bearing inspections
- Main and auxiliary pump-motor checks
- Ventilation-fan and blower motor assessment
- Compressor and refrigeration-motor inspections
- Cargo-, ballast- and cooling-pump motor checks
- Detection of possible bearing-current damage
- Investigation of recurring bearing failures
- Predictive-maintenance screening before overhaul
Important Limitations
- The TKED 1 detects the presence and count of discharge events; it does not directly measure shaft voltage or discharge-current magnitude.
- Measurements should be taken near the bearing and away from power cables or the VFD controller to reduce interference.
- The instrument is not approved for explosive atmospheres and must not be used in hazardous areas where explosion risk exists.
