Chroma 61860HF Regenerative Grid Simulator

Models:

• 61830HF – 0–460 V L-N, 30–100 Hz/DC / 30 kVA, 1ø or 3ø
• 61845HF – 0–460 V L-N, 30–100 Hz/DC / 45 kVA, 1ø or 3ø
• 61860HF – 0–460 V L-N, 30–100 Hz/DC / 60 kVA, 1ø or 3ø

Specifications:

• Output power: 30, 45 or 60 kVA
• Output voltage: 0–460 V L-N
• Up to 797 V L-L with three-phase output
• Frequency range: 30–100 Hz/DC
• AC, DC and AC+DC output
• Selectable single- or three-phase output
• Split-phase output configurable through phase settings
• Full rated power in both single-phase and DC operation
• Four-quadrant operation with regenerative capability
• Over 90% energy recovery efficiency
• Peak current up to 2.5 times RMS current for inrush current testing
• Total harmonic distortion below 0.5% at full load, 50/60 Hz
• Programmable voltage and frequency slew rates
• STEP, PULSE and LIST functions for power line disturbance simulation
• Harmonic and interharmonic synthesis and measurement
• External analogue signal input for PHIL/HIL applications
• Less than 100 μs latency from external signal input to voltage output
• Parallel operation of up to four units of the same power rating, up to 240 kVA
• LAN, GPIB, USB and CAN
• 5U chassis
• Touchscreen interface with physical keys

The Chroma 61830HF, 61845HF and 61860HF are regenerative grid simulators for testing applications including PV inverters, energy storage systems (ESS), power conditioning systems (PCS), microgrids, EVSE and bidirectional on-board chargers. The series combines 30–60 kVA output power with a compact 5U chassis and provides up to 460 V L-N or 797 V L-L. With a single-phase three-wire configuration, the equivalent output voltage can reach up to 920 V.

With four-quadrant operation, the series can both source and sink power. Energy returned from the device under test is fed back to the grid at over 90% conversion efficiency rather than being dissipated as heat. In addition to AC output, the units support DC and AC+DC modes, enabling both DC-only testing and AC testing with DC bias.

STEP, PULSE and LIST functions, together with harmonic and interharmonic capabilities, enable simulation of a wide range of grid conditions and disturbances. The series supports applications including testing according to IEEE 1547 and IEC 62116 as well as IEC 61000-related grid and immunity testing. It is also suitable for V2G, LVRT and other grid-connected equipment testing.

The 61800HF Series provides an external analogue signal input for Power Hardware-in-the-Loop (PHIL) applications, with latency of less than 100 μs from external signal input to actual voltage output. For higher-power applications, up to four units of the same power rating can be connected in parallel using a master/slave configuration, providing a total output of up to 240 kVA.