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HV BM Split Modules

Current, voltage and power measurement in confined spaces

The new HV BM Split modules allow measurements to be made in HV power cables and busbars running in confined spaces.

The HV BM Split Modules use the proven technology of the HV Breakout Modules for precise and safe measurements directly in HV power cables and busbars.

  • Nominal voltages up to ±1,000 V (measurement range up to ±2,000 V)
  • Currents up to ±1,000 A (nominal), ±2,000 A (peak)
  • 100% phase-synchronous acquisition of current and voltage

To simplify flexible installation at different measurement points, the main components of the HV Breakout Modules have been separated into 3 units:

  • Sensor modules for current measurement and voltage tapping (HV-)
  • Sensor modules or cables for voltage tapping (HV+)
  • Measurement modules for the acquisition and processing of measured values

The sensor modules are each connected to the measurement module with shielded, HV-safe sensor cables.

Current measurement is performed with the proven shunt modules of the HV Breakout Modules. The shunt modules are either installed in safely encapsulated housings or also available as encapsulated individual modules. The shunt module consists of measurement shunt, temperature sensor for automatic temperature compensation and the measurement electronics. This technology and the measurements directly in the HV cables and busbars allow precise measurement results, as the influences of external fields are minimized: Pseudo signals, hysteresis effects, system-related noise, characteristic shift or offset errors are avoided.

The voltage is tapped via sensor modules or suitable sensor cables and the voltage is measured directly in the measurement module.

The measurement data is output with up to 1 MHz data rate per channel via EtherCAT® and simultaneously also via CAN bus.

Here you can find more information about the HV BM Split Modules.

HV BM Split Module
HV BM Split Modules
Current and voltage measurement with HV BM Split Modules in a cable duct
Current and voltage measurement with HV BM Split Modules in a cable duct
Current and voltage measurement at the busbar of a HV battery
Current and voltage measurement at the busbar of a HV battery