visible testing process and result auto stator testing machine for
3 phases AC induction motor
stator testing machine is controlled by IPC P4, displayed by colorful VGA. It is
programmable to test cold resistance, Hi-pot, insulation
resistance, in-turns insulation, field rotation direction. It has 2
stations, testing/replacing can be switched over by transparent
shield. Shield on enables to enter testing status automatically,
results is shown and pass/fail verification is out. On the fail
moment, there is sound optical alarm. Testing time is within 15
seconds.
Computer can collect, record, save every testing data and result.
Its software is easy operation and flexible adjustment. The HMI is
directly visible.
Parameter
1. Cold resistance
Testing parts: main winding and auxiliary winding individually.
Testing range: 0-2KΩ (according to sample)
Testing precision: ±1%FS
Threshold value setting: any value in the testing range (auto
convert the resistance under the ambient temperature into the one
at 20℃
2. Hi-pot
Testing condition: 0-2800V AC 50Hz 1-60seconds
Voltage precision: ±1%FS
Current range: 0.1-10mA
Current precision: ±1.5%FS
3. Insulation resistance
Testing condition: DC500V
Resistance range: 10-200MΩ
Resistance precision: ±3%FS
Alarm setting: any value in the range
4. In-turns insulation
Pulse voltage peak value: 500-3000V independently impact on main
windings, auxiliary windings and in-between main winding and
auxiliary winding.
Voltage precision of pulse peak value: ±1.5%FS
Pulse rising time: 1.2μs
Verification mode: Δs/s, Δf/f
Threshold value setting: any value within 1-100
Resolution: 1‰ turns of total turns no.
5. Field rotation direction (rotor structure)
Direction setting: CW/CCW
Alarm: on at the moment of actual rotation direction is different
with setting rotation direction. (all precision is fiducial error)
Composition
1. 2 stations
2. GE electric cabinet
3. Items testing system
4. Control switch over system
5. Computer
Main body: P4 IPC
Monitor: Colorful VGA 17”
Min memory: 1G
Min hard disk: 160G
Keyboard: 101
6. Software
Items testing program
Threshold value setting and modifying program
Items setting and shielding program
In-turns impact wave saving and comparison displaying program
Data statistic and analysis displaying program
Report and graphs printing program
Testing data retrieving program
7. Power: 3 phases, 5 wires, 1.0KW
Spare parts
| No. | Commodity | Manufacturer | Unit | Quantity | Remark |
| 1 | P4 IPC | EVOC | Piece | 1 | 160G hard disk, 1G memory |
| 2 | I/O | FIRSTEP | Piece | 1 | Function PCB |
| 3 | A/D card | FIRSTEP | Piece | 1 | Function PCB |
| 4 | Hi-pot test | FIRSTEP | Piece | 1 | Testing PCB |
| 5 | Insulation resistance test | FIRSTEP | Piece | 1 | Testing PCB |
| 6 | Cold resistance test | FIRSTEP | Piece | 1 | Testing PCB |
| 7 | In-turns insulation test | FIRSTEP | Piece | 1 | Testing PCB |
| 8 | Rotation direction test | FIRSTEP | Pieces | 2 | Testing PCB |
| 9 | relay | HONGFA | Pieces | 2 | |
| 10 | Contactor | SCHNEIDER | Pieces | 2 | |
Stator testing machine is working with the 3 phases induction motor
stator production line, its ahead machine are WD-3-SPI(conroller)
slot paper inserting machine, WD-PR-160 horizontal coils making
machine or WD-LR-150 vertical coils making machine and WD-LK-90
coils winding insertion machine, or WD-RK-150 combined coils making
and insertion machine, WD-ZJ-160 middle forming machine, WD-DB-100
single side lacing machine, WD-BZ-160 double sides lacing machine,
WD-ZZ-160 final forming machine, its after machine are WD-ZCJ
stator varnish machine.
