CS9933ET-2 Hipot and Insulation Resistance Ground resistance Tester for PV Module

The CS9933ET-2 AC/DC Withstanding Voltage/Insulation Resistance/Ground bond  Tester, is the test instrument that can handle the insulation test with high voltage and high resolution required for the evaluation of the PV module, Cable, Connector, and Junction Box.  It can be finished three test that is AC/DC hipot, insulation and ground resistance automatically. With fast test speed, stable performance, it is widely used  in production line.

Photovoltaic safety tester is used to test PV module, cable, connector, terminal box, …etc  which can deal with high voltage and high sensitivity insulation test. There are two functions that are high voltage test and insulation resistance test in total.

According to the IEC61730 standard(photovoltaic module safety qualification—part I: Requirements for construction which describes the fundamental construction requirements for photovoltaic modules in order to provide safe electrical and mechanical operation during their expected lifetime), the definition of PV module application is divided into A, B, C.

The current measuring terminal can choose the grounding mode or the floating mode. Insulation voltage withstand test of photovoltaic module is based on the application of IEC61215/61646 and the maximum voltage of the system.

Maximum test voltage for the application class A:2000V plus 4 times the maximum system voltage

For the maximum voltage application category B:1000V system 2 times

According to the calculation of a maximum voltage of 8000V, the company CS9923GS, CS9923G is based on this standard production

According to the calculation of the maximum voltage B 6000V, CS9922G, CS9922GS is based on this standard production

• Perform insulation resistance testing in the range of 50 V to 2500 V / 1 M to 50.00 G
• Applies for the testing of IEC61730:2004 standard, IEC61646:1996 and IEC61215:2005
• High-precision current measurement, 1 μA of the setting resolution for judgement
• Rise-time control function makes a voltage to be increased slowly and it will not give effect of the stress to the PV module
• The judgement method of the insulation resistance test can be selected by using the current value in addition to the resistance value
• The phenomena of voltage appearance by the dielectric absorption, the test time can be up 999.9 seconds
• ACW: 0.050~5.000kV    @    5.0uA~20.00mA
• DCW:0.050~6.000kV    @     0.050uA~10.00mA
• IR:  0.050~2.500kV  (DC)   1M~50.00G
• GR: (0~40.0A)DC   0~510.0m ohm
• Frequency:40.0~400.0Hz
• Accuracy:1.5%
• Test time:0.0~999.9s

 Take one of our PV module international company as a example, They set three test steps, the first step is doing the insulation test, the second step is doing the ground resistance test and the third step is doing the DC high voltage test.