Home DNV Motor Test Solution R-L Load – Production & EMI Testing Load for Inverter Modules
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DNV Motor Test Solution

R-L Load – Production & EMI Testing Load for Inverter Modules

A dual-channel programmable inductive and resistive load designed for validating automotive power inverter modules under real-world electrical stress, EMI exposure, and production testing environments..

  • Detail
  • Special Features
  • Specification

The R-L Load is an ideal tool for validating power inverter modules before deploying them into vehicle propulsion systems. It provides a safe, scalable method to emulate real load behavior including motor impedance and switching reactions without requiring a rotating machine.

It supports standard automotive resolver and encoder emulation, allowing complete control testing of inverter logic, PWM strategies, and safety protections.

With robust protection functions and efficient liquid cooling, this load system is ready for round-the-clock usage in production lines or advanced endurance testing labs.

  • Dual-channel load configuration for simultaneous inverter testing

  • Compatible controller and interface with the latest E-Motor Emulator systems

  • EDAC I/O control interface for fast integration into automated benches

  • Built-in position sensing emulation (resolver and encoder signals)

  • Reports phase currents and temperature feedback in real time

  • Same inductors used in motor emulator systems for consistent testing results

  • Designed for inverter power module durability and EMI compliance verification

Parameter Value
Channels 2 independent test channels
Power Rating 20 kW per channel
Inductance 105 µH per phase
Phase Resistance 55 mΩ (other options available)
Max Phase Current 350 Arms per phase
Control Power Option 8–30 VDC
Controller Interface EDAC I/O
Position Sensing Emulation Resolver: 2–24 lobes, 3–20 kHz excitation, encoder: up to 80 pulses/rev
System Protections Over-temperature, coolant loss shutdown, E-STOP, HV interlock, communication loss

 

Requirement Description
Input Power Single-phase AC (120 V / 60 Hz)
Cooling Water or 50% WEG, 2.5 GPM per channel, 30°C max
Dimensions (W x D x H) 584.2 mm × 990.6 mm × 1016 mm
Installation Caster-mounted for easy movement