About the product
The HVcontrol unit combines all standard functions required to manually operate a high voltage transformer. It includes a safety contact loop, the measurement of primary and secondary current, as well as of the primary voltage. User-settable limits for the primary and secondary current trip the main circuit breaker. The safety loop, as well as the emergency stop is hard-wired and equipped with forced contacts.
Due to its flexible design, the HVcontrol can be used on any high voltage test set. Especially, in case of the modernizationof old test sets, the HVcontrol offers a multitude of improvements if compared with conventional relay based controls.
The unit comes with rigid solid-state piezo push buttons. Each of these control buttons has an illuminated ring to indicate the state of the function controlled by this specific button. This allows an easy and intuitive operation of the HVcontrol.
The HVcontrol comes in a 19"-subrack (3HU). This makes it an easy replacement of older controls having the same size. On its rear panel, the HVcontrol offers conveniently detachable screw terminals for the different controls and optional instruments.
Modular Concept
Besides a mere drop-in replacement of an old control, the HVcontrol can be combined with other test instruments of Power Diagnostix to build a fully automated acceptance test environment. It can be ordered with several optional functions e. g. for STEP tests, TTL gating. It's also possible to deliver the HVcontrol with a SCOPE display.
Further, the instrument can be combined with the ICMcompact for partial discharge testing and with the TDAcompact for tanδ and capacitance measurements.
Power Diagnostix also provides industrial PCs to control the combination of instruments. Depending on the application and its requirements, the instruments can be mounted in desktop enclosures, 19" racks, or control desks fitted with 19" mounts.
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Troubleshooting
The power fuse might be blown. Unplug the unit and check the power supply fuse. This fuse is located on the rear panel of the HVcontrol above the on/off switch.
A communications error with the serial connection to the HVcontrol might have occurred. Within the HVpilot software, check that the serial com port selected in the menu ‘Options >Interface settings’ is the COM port to which the HVcontrol is actually connected. Within the Windows Device Manager, check if the USB driver was properly installed. Try rebooting both the HVcontrol and the PC.
The HVcontrol does not allow to continue in case the safety & security are not properly configured to the according test station. Using the black buttons on the display it’s possible to check with the status Error window which settings prevent to continue.
When the measured currents / voltages are reaching the limits set the HVcontrol does not allow to continue increasing with manual control and stops the test in case of a step test to protect regulating and step-up transformer. Please check limits set and current consumption of the test circuit.