Active Member
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[China]
Address: 7-16, Building 012, No. 26, Fenghuang Shui'an District, Ningbo High-tech Zone,Ningbo, Zhejiang
Contact name:
NINGBO HI-TECH WEDE MOTOR MACHINES CO.,LTD |
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stable testing performance 2 stations automatic ceiling fan testing bench with convenient operation fixture
Stator testing machine has 2 stations in turn for operation, which upgrade the production capability. It audits the stator quality.
Test principle
Hi-pot test is to load high voltage to the testing part, and then by leakage current to verify the quality. High voltage load between coils and core is to test the slot insulation quality, loading voltage is 50Hz AC, voltage is adjustable in the range of 0-2800V, loading time is adjustable in the range of 1-60 seconds, the leakage current test is obtained by high precision current sensor.
Insulation resistance is calculated by measuring the leakage current at the time of loading 500V DC constant voltage power.
At the cold resistance test, put the coils in constant current power, by the both ends voltage of the testing coil, by R=V/I to calculate the resistance, the system takes 4 points.
Through the motor production, the unqualified surge insulation, wire OD deviation in the coils, copper purity of the wire not good, turns no. difference or unqualified core can result in quality problem. The less quality problem reduces motor efficiency, serious quality problem can burn the motor. In the modern motor production, such instability can be verified by the surge test.
Surge test takes “impact wave comparison”, loading impact voltage wave of fixed value and pre-wave time to the need-be-test coil, and by high speed A/D converter to do the sampling on the self-excited damping wave in the need-be-test coil to the computer and compare it with the standard surge wave of such type motor, and then verify the quality and take out the NJ part.
Main parameter:
1. Size: 700x1000x1800mm
2. IPC 19”
3. Input voltage: AC220V
4. Power: 0.5KW
5. Testing time: less 12S
6. Testing index:
| Items | Testing condition | Testing range | Precision | Remark |
| Hi-pot | Loading voltage 0-2800V AC | AC 0-10mA | 1% | Testing time 1-60s, adjustable |
| Insulation resistance | Loading voltage 500V DC | 10-500MΩ | 3% | |
| Cold resistance | Constant current power | 0-1000Ω | 1% | 5 gears max |
| Surge | Loading voltage 0-3.5KV DC | Read 1‰ turn short circuit | ||
| Rotation direction | 0-250V, adjustable | CW/CCW |
Stator testing machine this model is working with the ceiling fan stator production line, its ahead machine are WD-3-SPI slot paper inserting machine and WD-4-SPI top paper inserting machine, WD-2A-JCM winding machine or WD-2B-JCM winding machine or WD-4-WCM winding machine, sleeve cuting machine, terminal press; its after machine are WD-ZDG varnish machine, WD-216S-JYZ shaft press
