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HV BM Split Modules HV BM Split Modules group

HV BM Split Modules

Measurement of internal conductor current and voltage as well as power analysis in confined spaces

The HV BM Split Modules use the proven technology of the HV Breakout Modules for fast and precise measurement of internal conductor current, voltage and instantaneous power even in confined spaces. HV BM Split Modules can be used to perform measurements in HV power cables or even in busbars.

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  • Measurement of voltage (U), current (I) and shield currents in HV applications with little space for the installation of the measurement technology
    • Voltages up to ±1,000 V (measurement range up to ±2,000 V)
    • Currents up to ±1,000 A (nominal value), ±2,000 A (peak)
  • Simultaneous EtherCAT® and CAN bus communication
  • Output of voltage, current and instantaneous power with up to 1 MHz measurement data rate each
  • Online performance analysis with Vector eMobilityAnalyzer (included in vMeasure exp and CANape)

For flexible installation of the measurement technology in confined spaces, the HV BM Split Modules consist of three components:

  • Modules for current measurement
  • Modules or cables for voltage tapping
  • A measurement module for the acquisition of the measured values

The sensors (HV SBM - HV Split Breakout Module) are each connected to an input of the measurement module (HV SAM - HV Split Acquisition Module) using shielded, HV-safe sensor cables. Data output is via EtherCAT® or CAN. By splitting the components, the space required for installation in HV power cables or in busbars is minimized.

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Current measurement

The shunt modules built into the current sensors are available with different measurement ranges and are selected to suit the measurement task. The shunts have an integrated temperature sensor and memory for calibration data for automatic online temperature compensation and identification. The small measurement voltages tapped at the shunt are amplified in the shunt module.

The current sensors are available in different versions:

  • HV SBM_I (HV Split Breakout Module Current)
    • Breakout Module with cable connection via cable glands and ring terminals
  • HV SBM_I C (HV Split Breakout Module Current Connector)
    • Breakout Module with cable connection via PL500 connector system
  • HV SBM_I open
    • encapsulated shunt module for self-installation

Voltage measurement

The safe and precise tapping of the voltage is done via the following options:

  • HV SBM_U (HV Split Breakout Module Voltage)
    • Breakout Module with cable connection via cable glands and ring terminals
  • HV SBM_U C (HV Split Breakout Module Voltage Connector)
    • Breakout Module with cable connection via PL500 connector system
  • HV-safe sensor cable with open end
    • e. g. the K912 sensor cable is suitable for self-installation.

HV SAM (HV Split Acquisition Module)

The HV SAM measurement module has one signal input each for current and voltage. Data is transmitted via the EtherCAT® or CAN interface with up to 1 MHz data rate.

HV SBM_I / U
HV SBM_I / U
HV SBM_I / U C
HV SBM_I / U C
HV SBM_I open
HV SBM_I open
HV SAM
HV SAM

Applications

With the HV BM Split, currents and voltages can be measured precisely and at high data rates even when too little space is available for the installation of HV Breakout Modules. Thus, measurements can also be carried out in the HV cables of test vehicles, inside HV components and in busbars.

With the measurement data from the HV BM Split and the eMobilityAnalyzer from the E-Mobility Measurement System, a wide range of analyses can be performed in real time: Inverter and powertrain efficiency measurement, e-motor power analysis, harmonic analysis, PWM analysis, ripple analysis and many more.

Measurement of current and voltage in HV cables
Measurement of current and voltage in HV cables in the confined space of a test vehicle.
Current measurement in a busbar in a HV battery with HV SBM_I open.
Current measurement in a busbar in a HV battery with HV SBM_I open.

Downloads

Filename
Download Language
Version
Size

English
V.1.0.0
1.45 MB