
BLDC electric motor testing equipment electronic stator testing machine for air conditioner motor
I. Requirement analysis
Test object: stator of BLDC motor for air conditioner
II. Test item and specification
1. Test station: dual station (double two)
2. Clamping mode: Four test clamps, probe connection
3. Test items:
AC Hipot: winding to iron core;
Insulation resistance: winding to iron core;
Surge: winding to winding;
Winding resistance: winding to winding;
Inductance: winding to winding;
Direction of rotation: CW, CCW and still;
III. System features:
1. Intelligent system: the system can connect the Ethernet via network port, and achieve data communication and resources sharing to meet the requirements of internet of things.
2. Modular design: separated module can achieve serial or parallel test, single station or multiple station tests.
3. High performance: available to test Hipot, insulation resistance, surge, winding resistance, inductance and rotation.
4. Strong adaptability: support to test winding with more than 10uH, and the surge voltage feedback function makes the test more accurate.
5. Easy to maintain: support self-diagnose, remote control and software online upgrading. Modular design makes the board card can be changed easily.
6. High efficiency: all test items can be tested at one stop with once wire connection. It takes less than 5s to test the single-phase asynchronous motor with single speed.
7. Easy to operate: professional test software, humanized operating interface, built-in help document, standard equipped with touch screen and numeric keyboard
8. Multiple interfaces: it comes with USB, LAN, RS232, RS485 and Can interfaces.
9. Language: standard equipped with Chinese, multiple languages are available.
IV. Technical Parameters
1. AC Hipot: Applied AC high voltage from the silicon steel sheet to iron core, and test the current of testing loop.
Output voltage setting range/ precision: | AC 200~3000V±(2%×setting value+10V) |
breakdown current testing range/precision: | 0.10~20.00mA±(2%×display value+0.05mA) |
breakdown current presetting alarm range: | Max:0.10~20.00mA;Min:0.00~20.00mA |
test time range/resolution: | 0.5~999.9s 0.1s/step |
arc detection: | 1~9 (9 is the most sensitive level) |
2. Insulation resistance: apply DC high voltage between winding and iron core and check the insulation resistance of testing loop.
output voltage setting range/precision: | DC 500V/1000V±(2%×setting value+10V) |
insulation resistance testing range/precision: | 1~500MΩ≤100MΩ:±(3%×display value+0.5MΩ); >100MΩ:±(5%×display value+5MΩ) |
insulation resistance alarm setting range: | Max:0~500MΩ;Min:1~500MΩ |
test time range/resolution: | 0.5~999.9s 0.1s/step |
3. Surge: apply impulse high voltage to windings, and compare the oscillation graph with the saved graph.
output voltage setting range/precision: | 500~3000V±(3%×display value+8V) |
sampling frequency: | 100MHz |
Surge graph comparison: | Area, area difference, corona, phase. Three surge graphs will be displayed on the test interface |
4. DC winding resistance: four-wire resistance measuring method. Apply DC current to the windings and test the temperature and winding resistance under current environment. The resistance will be converted to the value under designated temperature(generally 20℃ or 25℃) automatically.
measuring range and precision: | 10.0mΩ~20KΩ±(0.3%×display value+3 words) temperature compensation can be set |
test time range/resolution: | 0.5~999s 0.1s/step |
temperature compensation: | Yes |
temperature probe/measuring range: | DS18b20 -10.0℃~+50.0℃ |
precision: | ±0.5℃(range:-10℃~+50℃) |
5. Inductance: apply electric level signal with preset frequency to the windings and test the inductance of windings.
test frequency: | 100Hz120Hz1kHz10kHz |
electrical level: | 0.3V.6V1V |
test range: | 1µH~2H |
precision: | 0.5% |
6. Direction of rotation:the rotation is tested by monitoring the change of magnetic field
Rotation: | CW, CCW and still |
V. Picture show
VI. Test methods:
1. Set the test sequence and parameters range as to the stator parameters and establish a new model for this type of stator (The model of one stator type needs to be established only for the first time)
2. Put the tested stator on a designated station and clamp it
3. Sliding cover to start the test and the “in-test” indication light is lightening.
4. All the items will be tested. The operator is not allowed to touch the stator during the test.
5. Pass or fail signal will be triggered after completing all items test.
6. Take out the tested stator and continue to test next one from step 2.
VII. Software function introduction
1. All the items can be selected to test or disabled.
2. The motor model can be established up to 1000.
3. The maximum and minimum test value of each type of motor can be entered and saved. The resistance and inductance has the function of setting and displaying the unbalanced degree.
4. Two options are available in case of failing the test result: “continue to test” and “stop the test”. If the winding resistance test failed, the test can be stopped after testing the three windings.
5. The testing data is stored in the data base, and can be exported via USB port.
Ningbo Nide Tech Co., Ltd
Ningbo Nide Tech Co., Ltd, adhering to the customer-centric
concept, focuses on the stator, rotor and complete assembly of
various motors, and provides customers with one-stop solutions for
highly automated, intelligent and flexible production.
The company was established in 2010 and has 4 subsidiaries:
Zhejiang Nide Automation Tech Co., Ltd., Jiangsu Nide Automation
Tech Co., Ltd., Ningbo Nide International Co., Ltd.,Ningbo Lingfeng
Danuo Property Service Co., Ltd. and 3 international affiliated
company: NIDE India PVT, NIDE USA LLC,NIDE Wintech SRL.
After years of development, NIDE has gradually accumulated a
certain influence and brand effect at home and abroad. At present,
the products cover the professional manufacture of new energy motor
stator and rotor, hairpin motor, automatic aluminum casting rotor
line, brushless motor/ BLDC motor, universal motor, wheel hub
motor, etc., which are used in new energy vehicles, household
appliances, industrial motors, water pump motors, servo motors,
etc. The company integrates R&D, production and sales, and
wholeheartedly serves customers at home and abroad, aiming
delivering value and achieving a win-win situation.
Focus on providing one-stop solution to motor manufacturing.
Three business divisions:
1. Motor manufacturing machines.
2. Motor components.
3. Technical consulting and turn-key service.
The Core business is to provide different kinds of motor manufacturing machinery, including stand along machine, fully-auto complete line for armature and stator production, and the motor assembly line.
The second division is to supply the full range of motor components such as commutator, ball bearing, carbon brush, insulation paper, shaft, magnet, fan, motor cover,etc.
The third division is to provide technical support and consulting, project support and turn-key service for some motor manufacturing.
With good service, unique philosophy, professional team and reliable quality, we win the worldwide customers’ confidence gradually. We directly and indirectly supply our products to more than 50 countries. Among the customers, many of them are the world-renown companies.
Application status
Ningbo Nide Machinery Equipment Co., Ltd., wishes is to provide world wide customers with one-stop service for the motor manufacturing.
Make motor, turn to Nide, everything will be easy !
Nide--Just for easy, our objective is not only to make motor
manufacturing easier, but also strike for making life easier.
Five Affiliated Companies
1.Ningbo Nide Tech Co., Ltd-www.nidegroup.com
Located at Hi-Tech District in Ningbo city, the industrial hub of China, and taking the advantage of strong technical and commercial team, Ningbo Nide Tech Co.,Ltd focuses on the R&D, marketing&sales,quality control and after service of the machines which are produced by its affiliated factories(Jiangsu Nide Automation Tech Co.,Ltd and Jiangsu Xiandian Mechanical Co.,Ltd.
Our wishes are to provide our customers with optimized full pack of solution to motor manufacturing.
2.Jiangsu Nide Automation Tech Co., Ltd
Located in Suzhou, covering the workshop area of 9,000 square meters, with 102 employee, Jiansu Nide Automation-Tech Co., Ltd mainly manufacture stand along machine and fully automatic line for induction motor stator, BLDC motor winding machine, external rotor production machines, rotor assembly line, motor assembly line and other customized machine or production line.
The products are mainly applied for single and three phase induction motor, water pump motor, washing machine motor, air condition motor, fan motor, compress motor, electric bicycle motor, BLDC motor, servo motor, electric automotive motor, etc. some of our products are CE approved.
Strictly implementing the ISO 9001 system, equipped with the high precision machining facility, we ensure our products to meet what customers' exact needs.
3.Zhejiang Nide Intelligent Automation Co.,Ltd--www.nide-ai.com
Zhejiang Nide Intelligent Automation Co.,Ltd, which is wholly-owned by Ningbo Nide Mechanical Equipment Co.,Ltd, sitting in the industrial hub city Ningbo, mainly focus on the winding and assembly technology for all kinds of BLDC motor, including the stone along machine and fully automatic complete line. Meanwhile, we also customize some non-standard machines to cater for clients needs in motor manufacturing field.
Strict quality control system, plus strong technical team allow us to offer the reliable
machines to our customers.
Nide--Just for easy, is try to not only make motor manufacturing easier, customer easier,
but also strike for future life easier !
4.Ningbo Nide International Co., Ltd--www.nide-international.com
Sitting in the beautiful sea shore city--Ningbo, taking the advantage of advanced industries hub, perfect supply chain and convenient transportation, and integrating professional team with rich motor manufacturing experience , Ningbo Nide International Co., Ltd focuses on supplying the motor components one stop sourcing platform to our customers.
The products include commutator, ball bearing, shaft, carbon brush, insulation paper, thermal protector, magnet, fan, motor cover and lamination. Apart from these products, we also provide the service for the motor manufacturing technical consultant, project support and turn-key project.
With the decades experience in the motor manufacturing field, we deeply understand what the customer exactly demand, a significant motor components manufacturing net work and strict quality control system allow us to provide our customer with good quality products at reasonable price, our aim is to help customers to reduce the tiresome sourcing tension while acquiring the good quality products.