Tester a scarica parziale Model 19501

  • CE Mark
  • Rohs 2 Compliant
Testerascaricaparziale
Testerascaricaparziale
Testerascaricaparziale
Caratteristiche principali
  • Separate design for AC high voltage output with PD measurement and mainframe
  • Built-in AC Hi Pot test and PD detection functions
  • Compliant with IEC60747-5-5, VDE0884 and IEC 60270 requirements
  • Built-in regulation test methods
  • 3-stage voltage testing method
  • PD measured results display (pC)
  • PD failure count setting (1-10)
  • USB storage for screen capture
  • Graphic aids design
  • Standard LAN, USB, and RS232 remote control interface
  • English/Chinese User interface

Chroma 19501 Partial Discharge Tester provides AC Hi-Pot test to measure leakage current and flashover, and partial discharge (PD) test to measure the charge (pC) of PD on the device under test (DUT). Performing AC Hi-Pot test and PD test on high withstand voltage components and insulation materials can ensure the product's insulation quality and improve its reliability.

The design of 19501 complies with the requirement of the IEC 60270-1 standard for PD measurement. The result of the PD measurement is intuitively displayed in charge (pC) on the screen of the mainframe. The test methods specified in the IEC60747-5-5 and VDE0884 standards have been designed into the instrument, which enables the user to operate and set up the unit more conveniently.

When there is a void inside the insulation material or when there is an air gap between the insulation materials, the void or the air gap has higher electric intensity under the normal operating (working) voltage, which might cause PD. When PD continuously occurs on the components used in a power system (e.g., optocoupler, digital isolator, IGBT, transformer, motor, etc.), the longterm damage from PD causes the insulation of these components to fail, leading to potential hazards. Therefore, the regulations recommend or require to perform PD test on these components, ensuring that PD does not occur under the normal operating voltage. For example, the IEC60747-5-5 standard requires the PD test to be 100% performed on the optocoupler in the production process (routine test), and PD should not exceed more than 5pC under the maximum insulation voltage.

 


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