B2 HVA34, Руководство пользователя

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4 Design and Construction
© b2 electronic GmbH DHV0078 b2 EN 29
Output modes
The HVA can carry out HV test in the following output modes:
Output mode Characteristics
DC [-/+] Single polarity output. DUT is polarized
(negative/positive) with respect to ground
•
Not recommended for testing extruded cables
(e.g. XLPE cables)
•
Measured valued: dielectric loss of the DUT
(including leakage current across terminations)
•
DC: Most commonly used DC output mode
VLF Withstand
Test (VLF)
sine-/square wave
•
Suitable for testing extruded cables
(e.g. XLPE cables) and other DUTs
•
Measured values shown as RMS
Vacuum bottle
testing
•
Not suitable for testing with DC above DUT voltage
rating (X-ray Hazard)
•
Possible in manual and automatic test modes
•
Trip current and rise rate are user defined
•
Measured valued: peak voltage
Sheath test
•
Suitable for sheath test
•
Duration is user defined
•
Max. test voltage: 10 kV
Sheath fault
location mode
•
Suitable for sheath fault location
•
Duration is user defined
•
Pulse user defined
(1:3 / 4 s, 1:5 / 4 s, 1:5 / 6 s, 1:9 / 6 s)