Benning ST 755+ - Testing the Contact Current of the Welding Circuit; Figure 26 Testing the Contact Current of the Welding Circuit (Connection Diagram, Circuit Diagram)

9.5 Individual tests
Testing
5284 / 08/2023 enBENNING ST 755+ / ST 760+94
Procedure
1. Start the test.
2. Use the test probe for measuring on the poles of the secondary side.
3. Check the measured values for compliance with the technical data of the test sample.
– AC welding voltage
– DC welding voltage
– Peak value (peak) of the welding voltage
– Welding current
9.5.11 Testing the contact current of the welding circuit
Testing the contact current of the welding circuit [}page47] is intended to check the contact
current for compliance with the rated values of test samples according to VDE0544‑4.
Requirements
• Approved safety measuring lines
• Please observe the requirements for measuring [}page71].
• The test sample is disconnected from the mains.
• Make sure that you are familiar with the procedure for manual [}page77] and automatic
[}page76] testing.
• Make sure that you know the necessary measuring points.
• The test sample is connected according to the connection diagram.
• Please observe the operating manual and the technical data of the test sample.
1 2
Figure26: Testing the contact current of the welding circuit (connection diagram, circuit diagram)
1 Contact current of the welding circuit (ClassI, I
Cont
)
The shock-proof plug of the test sample is plugged into the test socket of the device.
Use the test probe for measuring on both poles of the secondary side of the test
sample.