User Manual
Rev 9.0 Page 21 HV Diagnostics
5.4 Operation Modes
The following describes the scope of each HVA operation modes: Test
Modes, Output Modes (Waveform), Arc Management Modes, and
Data Transfer Modes.
Test Modes
The HVA 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 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
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).
Vacuum Bottle
Testing
Not suitable for testing with DC above DUT
voltage rating (X-ray Hazard)
• Possible in Manual and Automatic test modes
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