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Five Reasons Why Our Winding Testers Are Chosen
- Highly sensitive impulse partial discharge testing required for inverter-driven motors
(EV, home appliances, etc.)
- Automatic testing equipment combined with other tests can be manufactured.
Know-how to enable stable testing.
- Easy to install in a production line, high durability and low failure rate
- Highly sensitive detection of partial discharge using a patch antenna.
- Many applications
(Japan, USA, Europe, China,
Southeast Asia)
Four main features of the product
- Two tests required for coil testing in one unit
- With a single unit, you can perform high-level tests for rare shorts in coils and partial discharges caused by insulation defects in coils, with simple operation.
- High-level coil testing at low cost
- The simple connection of the test equipment enables high-sensitivity partial discharge testing, which contributes to cost reduction of the testing equipment. The conventional method requires more than 5 million yen for the same test, but the cost is less than half of that.
- Stable testing unaffected by the environment
- Partial discharge testing can be performed at high sensitivity without being affected by the test environment because the electromagnetic waves generated by partial discharge are detected by a narrow-band antenna that is not in contact with the device. When incorporated into an automatic testing machine, the partial discharge is measured by an antenna independent of the test circuit, so it has the feature of being unaffected by the environment.
- Versatile and Convenient Testing Functions
- It has a variety of convenient functions necessary for evaluation of partial discharge tests, such as discharge start voltage (PDIV), discharge extinction voltage (PDEV), discharge level (PDpeak), number of discharge occurrences (PDpuls), and visual display of the actual discharge waveforms.
Application Results
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Example: Our tester is used in the mass production line of a major U.S. EV manufacturer.Equipment used: DWX-05PD, ACPD-05X, repeated impulse surge application power supply.
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A domestic industrial motor manufacturer uses our testing equipment at their production site and development prototype department.Equipment used: DWX-10PD, repeated impulse surge application power supply.
Applications
- Motor relatedInverter drive motors, BEV/HV drive motors, various motors for car models, etc.
- TransformersHigh voltage transformers for LCD TV backlight power supply, switching power supply transformers for home appliances, etc.
- CoilsCoils for IH cooking heaters, choke coils for harmonic filters for inverter power supplies, etc.
Application Flow
The DWX series is used in both the production line
and the development evaluation stage.
- InquiryPlease contact us by phone or by filling out the form.
- ConsultationDemonstration of the testing machine, consultation about your problems in testing.
- Proposal, Demo machine rentalDemo machine trial, proposal for testing
- InstallationInstallation of testing equipment and explanation of usage. Maintenance support
Related Products
Partial Discharge TesterRepeated Impulse Surge Power Supply
IPX-05BP
IPX-05BP is a power supply that can output repeated impulse voltages from low frequency to high frequency for the evaluation of surge resistant wires and nano-composite wires used for EV motors. Repeated impulse voltages simulating inverter surges can be applied to the sample continuously for a long time. The system can be used for evaluation tests of capacitive or inductive loads ranging from small to large capacitance.
Comprehensive testing machinesAutomatic stator coil testing machine
This is an automatic coil testing machine based on over 50 years of experience in coil testing.
Each testing device is centrally controlled by PC or PLC, etc., and all tests are performed automatically. It is also possible to switch circuits by manual operation for individual testing.
As a custom-made product, we can also manufacture a test stand that matches the shape of the customer's workpiece. Combining these products improves workability and safety.
Registration of judgment criteria, individual tests, etc. can also all be operated from the screen.
Partial Discharge TesterAC Partial Discharge Testing Equipment
ACPD-05X
With the spread of inverter motors, partial discharge testing is required to test the insulation reliability of coils, as well as home appliances.
Contact Us
Please feel free to contact us for inquiries about testing,
requests for demo/demo equipment loan, specification confirmation, etc.
- Inquiries by phone
