HVLR – High-Voltage Lab Rig
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Bosch Engineering HVLR – High-Voltage Lab Rig HV test system for validation tasks of power electronics OVERVIEW OF HVLR Bosch Engineering’s High-Voltage Lab Rig (HVLR) offers a fast, efficient and, above all, safe solution for testing the electric vehicle power electronics of the drive in the development lab. The HV test system integrates a high-voltage power supply and electronic safety functions for the circuit of the component under test in a compact 19-inch test equipment cabinet. Functions  Safe switching and monitoring of high-voltage up to 1,200 Volt / 200 Ampere  Isolation and operation monitoring  HV interlock  Safety PLC  Precharge and active fast discharge function Many of the tests on the power electronics of electric vehicles can therefore be shifted from the test bench to the high-voltage laboratory. This frees up valuable bench capacity for other testing and validation tasks, thereby reducing development time and costs. Thanks to its modular design, the HV test system can be flexibly adapted to individual customer requirements. For example, different voltage levels of up to 1,200 volts as well as different communication interfaces can be selected.  Integration into test automation  Touchscreen or external monitor as central operating and display unit  Remote controllability  Modular design A key focus in the design of the HVLR was safety in everyday test operations. The protection concept covers potential causes of accidents and reduces the risks when working on the high-voltage circuit. Another resulting advantage is the protection of the test object from damage during testing. This is particularly advantageous for prototype components that are only available in small quantities. The HV test system is conveniently operated via a touchscreen display or external monitor, which provides a clear-cut overview of all operating parameters such as status messages, information on system settings, and any error warnings. The safety functions are implemented in the High-Voltage Safety Box (HVSB). This offers isolation monitoring, an interlock circuit, integration into a laboratory emergency stop shut-off concept and a PLC interface with which the HVLR can be integrated application-specific into the test automation of the respective environment and operated remotely. The HVSB is included with the HVLR, but is also available as a separate module, for example to retrofit the safety functions and the PLC interface to existing high-vo

Bosch Engineering, HVLR – HV test system for validation tasks of power electronics TECHNICAL FEATURES HVLR – High-Voltage Lab Rig Supply voltage HVSB current carrying capacity HVSB dielectric strength Isolation monitoring Emergency shut-off Precharge function Active fast discharge function to below 60 V Signal light Perm. ambient temperature Automation and remote-control interfaces 2 x digital input for switching requirements HV relay 2 x digital output for switching status HV relay Communication interfaces 1 x DVI (monitor) 1 x USB 1 x safety relay (DSUB9) 1 x CAN 2.0B External control and...