B2 HVA28TD - Operation Modes

4 Design and Construction
© b2electronic gmbh
DHV0053 b2 EN
23
4.4 Operation Modes
The following describes the scope of each HVA28TD operation modes: Test
Modes, Output Modes (Waveform), Arc Management Modes, and Data
Transfer Modes.
Test Modes
The HVA28TD can be operated in “Manual” or “Automatic” mode. For detailed
procedure, see 5.2 - Manual Test Mode, and 5.3 - Automatic Test Mode.
Test Mode Characteristics
Manual Designed to facilitate rapid testing. Test Parameters of the
last manual test appear as the default setting.
• Test parameters can be changed immediately before
activating a test.
• Basic reporting most appropriate setting.
(Extended reporting will generate a report with most
fields left blank)
Automatic Designed for testing with predefined configuration in order
to satisfy specific requirements (e.g. IEEE, IEC standards).
• Test sequence must be configured and saved at any
time before testing.
• Extended reporting most appropriate setting.
Output Modes
The HVA can carry out HV28TD 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
Sinewave
Default waveform
• Suitable for testing extruded cables
(e.g. XLPE cables).
• Measured valued: RMS
VLF
Squarewave
• Suitable for testing extruded cables
(e.g. XLPE cables).
• Measured valued: 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: kV