New energy motor stator partial discharge/PDIV testing solution

AN8A10-PD series partial discharge tester

Equipment Introduction:

1. Simultaneously supporting pulse PD (DC-PD) and sine PD (AC-PD) testing functions

2. Tested PDIV (ascending), RPDIV, PDEV (descending), RPDEV (mean)

3. Support winding multi-channel switching, standard switching unit, complete all tests with one wiring

4. Adopting a 13.3-inch Android touchscreen with simple buttons and indicator lights, it has high intuitive and convenient operation

Parameter setting definition and description

● Initial voltage: The initial voltage during the PDIV testing process;

Termination voltage: The termination voltage during the PDIV testing process;

Step voltage: The voltage amplitude that rises each time during the PDIV process;

Step interval: the time interval between each voltage rise;

Duration: The duration for which the current voltage is maintained (AC PD is effective);

● Pulse frequency: The number of pulses that are impacted at each voltage (pulse PD is effective);

Discharge threshold: The criterion for determining effective partial discharge, and exceeding the threshold is considered an effective partial discharge;

Frequency threshold: The criterion for determining the occurrence of partial discharge voltage. If the threshold is exceeded, it is considered that effective partial discharge has occurred at the current voltage

PDIV threshold: The criterion for determining whether PDIV is qualified. If it exceeds this value, PDIV testing is qualified. If it falls below this value, PDIV testing is unqualified;

PDEV threshold: The criterion for determining whether PDEV is qualified. If it exceeds this value, PDEV testing is qualified. If it falls below this value, PDEV testing is unqualified;

Product Features

1、 High reliability

1. Architectural advantage: Integrated partition modular architecture.

Based on the modular architecture concept of automobile manufacturing, the internal design includes high-voltage modules, low-voltage modules, and switching modules, each with independent microcontroller control operation. The power system uses AC/DC and DC/DC high-voltage isolation technology, and the low coupling module design has high reliability and standardization.

2. Material advantages: safety isolation, relay switching

The switch circuit and isolation coupling circuit of each module use high-voltage isolation optocouplers above 5000V to achieve good isolation and interference suppression, avoiding the crosstalk of board components. Adopting a high-voltage relay with imported 10kV or above reed switches as contacts, the reed switches are sealed in inert gas to avoid problems such as contact oxidation, carbonization, and adhesion, ensuring a service life of billions of times.

3. Process advantages: Imported automated surface mount machine, self-developed testing system for the entire process, and a complete quality management system.

We use Siemens' self purchased and imported high-performance and high-precision fully automatic surface mount machine to accurately and non destructively mount components onto PCB circuit boards, with higher reliability. Based on years of R&D experience in the instrument industry, we have independently developed and designed a comprehensive quality management system for various process inspection and testing systems, including board inspection, finished product inspection, and final product inspection.

2、 Good stability

3、 Can be integrated

Equipment functions are optional for easy integration

Configuration 1: ACPD+Switching:

Configuration 2: Pulse PD+Switching:

Configuration 3: ACPD+pulse PD+comprehensive testing+switching

Test functions: Pulse PD, ACPD, Pulse PD+ACPD

Test functions: Voltage resistance, insulation, inter turn, resistance, inductance, PDIV, etc

4、 Support measurement (output)

1. Conduct voltage load testing and record peak voltage data of 1kV~5kV respectively;

2. Record the interval time between consecutive pulse impacts;

3. Wavefront time recording

Support measurement (input)

Provide equipment testing and calibration reports, which are comparison reports between true values and test values

Support measurement (visualization)

• M4-PD outputs high voltage signal to generate partial discharge on the motor;

• Partial discharge signals are collected by PD test probes and PD calibration probes respectively

• The M4-PD display interface will show the PD test values

• The oscilloscope will display the waveform signal of PD.

5、 Customized Energy