Testing The Voltage Of The Welding Circuit; Figure 25Testing The Voltage Of The Welding Circuit (Connection Diagram, Circuit Diagram) - Benning ST 755+ Operating Manual

Testing
9.5 Individual tests
9.5.10

Testing the voltage of the welding circuit

Testing the voltage of the welding circuit [} page 46] is intended to check the open-circuit
voltage for compliance with the specifications regarding the rated voltages 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.
• The test sample has passed the insulating resistance test [} page 80].
• Make sure that you know the necessary measuring points.
• The test sample is connected according to the connection diagram.
Figure 25: Testing the voltage of the welding circuit (connection diagram, circuit diagram)
1 Voltage of the welding circuit (Class I, U
2 Voltage of the welding circuit (Class II, U
5284 / 08/2023 en
1
The shock-proof plug of the test sample is plugged into the test socket of the device.
Use the test probes for measuring with correct polarity between both poles on the
secondary side of the test sample.
The shock-proof plug of the test sample is plugged into the test socket of the device.
Use the test probes for measuring with correct polarity between both poles on the
secondary side of the test sample.
BENNING ST 755+ / ST 760+
2
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a
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a
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