- Non-destructive testing of the magnetic properties of stators
- Quality control of stators in seconds
- Time-consuming manual preparation of samples is no longer necessary
| BST-SA type: | BST-SA 40/150 | BST-SA 95/400 | BST-SA 95/400 HD |
| Minimum ID of measured stator | 40mm | 95mm | 95mm |
| Maximum OD of measured stator | 150mm | 400mm | 400mm |
| Stator height | 10 – 130mm | 15 – 290mm | 15 – 290mm |
| Maximum weight of measured stator | 20kg | 40kg | 70kg |
| Split-coil windings configurations (primary/secondary turns) | 2 (16/4, 4/4) | 3 (72/4, 8/4, 4/4) | 3 (72/4, 8/4, 4/4) |
Operating principle
The testing station consists of a testing cage made from aluminium profiles. The front section is fitted with a safety light shield. This guarantees very quick operating processes. The stator package is fixed via a horizontal drill hole into a small prism. When the area of the safety light barrier is clear the testing process can be started by using the start button. Then a u-shaped bracket with 64 windings moves into the stator and makes contact with the opposite side. The measurement is started with a start signal. If the measuring result is positive (the stator corresponds to the norm) the u-shaped bracket recedes and the measuring sample can be removed. If the result is negative (the stator does not meet the norm) the u-shaped bracket remains closed – a lamp lights up – and can only be released by activating a switch manually.
Measuring categories
- Specific hysteresis loss [W/kg]
- Maximum polarisation [T]
- Effective polarisation [T]
- Maximum field strength [A/m]
- Effective field strength [A/m]
- Remanence [T]
- Coercive field strength [A/m
- Permeability
- Spezific apparent output [VA/kg]
- AC hysteresis curve
| Technical data: | Stator Tester BST-SA 40/150 & 95/400 & 95/400 HD |
| Frequency range: | DC, AC 3 Hz – 20 kHz |
| Magnetic field strength H: | up to 5.000 A/m (depending on stator size) |
| Magnetic polarization J: | up to 2.3 T for FeCo stators, up to 1.7 T for SiFe NO stators (depending on stator size and permeability) |
| Repeatiability: | better 1 % ( ± 1digit) |
| Comparability of measuring results: | according to IEC 60404-3 |
| Maximum current: | ± 52 A |
| Maximum voltage: | ± 100 V |
Further Stator Tester sensors
