Test Method
Arc-Detection
The Arc-Detection test is characterized by detecting micro-discharges in a partial part of the insulation clearance at an early stage. The micro-discharges in one part of the insulation system will in the course of time lead to a more and more increasing damage spot. After hours, days, weeks, months or years the insulation system is weakened due to the persisting micro-discharge that an entire breakdown occurs.
The Arc-Detection serves for testing the insulation quality. The test is always performed in connection with the high-voltage test AC.
Quiet sizzle sounds during the test may also indicate micro-discharges.
The picture shows a winding wire which is not bandaged together with the winding head. The winding wire touches the sheet or has a slight distance to the sheet.
In the high-voltage test such a defect is only detected in case either the test voltage is very high or the winding wire is damaged directly at the critical spot.
By means of the Arc-Detection this defect is detected.
The picture shows a slot in which a part of the slot liner is missing. The winding wire touches the sheet or has a slight distance to the sheet.
In the high-voltage test such a defect is only detected in case either the test voltage is very high or the winding wire is damaged directly at the critical spot.
By means of the Arc-Detection this defect is detected.
This picture shows a slot in which the slot insulation is missing. The winding wire touches the sheet or has a slight distance to the sheet.
In the high-voltage test such a defect is only detected in case either the test voltage is very high or the winding wire is damaged directly at the critical spot.
By means of the Arc-Detection this defect is detected.
Which testers does SCHLEICH supply?
- single testers
- combination testers (combination with further test methods)
- testers of different tester classes
Standard committees
For legal reasons, in many cases, we cannot make an obligatory statement about the test conditions. Important for the application is the currently valid standard for your product to be tested.
Depending on the geographical location of the product, the standards to be applied can vary. For further information, please refer to the following institutes.
