KEISOKU GIKEN NT-AA-50KE-L AC/DC Regenerative Electronic Load (50kW; AC: 350Vrms-DC: 750V; AC: 175 Arms-DC: 200 A)

Basic functions

Rating:

Rated power: 50kw

Rated voltage: AC 350Vrms / DC 750V

Rated current: AC 175 Arms / DC 200A

Minimum operating voltage: AC 20Vrms / DC 20V

Ripple current: Within 4 Ap-p (switching frequency component)

Efficiency: Power regeneration efficiency: 90% (at full load)

Constant voltage (CV) mode (DC mode only)

Voltage setting range: DC 20-750V

Constant current (CC) mode: Current setting range: AC 0.0Arms~175Arms / DC 0.0A~200.0A

Constant Resistance (CR) Mode: Current setting range: AC 0.12Ω~1.40kω / DC 0.10Ω~3.00kω

Constant Power (CP) Mode: Power setting range: 0 to 50kw

MPPT mode (DC mode only): Mountain climbing method (factory option)

CC+CV mode (DC mode only): The setting range, resolution, and accuracy are based on CC mode and CV mode.

CP+CV mode (DC mode only): The setting range, resolution, and accuracy are based on CP mode and CV mode.

Soft Start: 0, 1, 2, 5, 10 sec

Measuring part

Voltage measurement: Voltage measurement range: 0.0 to 750.0V

Current measurement: Current measurement range: 0.0 to 300.0A

Peak current measurement: 0A to 220A

Active power measurement: Power measurement range: 0 to 50kw

Apparent power measurement: 0VA to 50kva

Power factor measurement: ±1.00

Frequency measurement: 40Hz to 70Hz

Interface: LAN; RS-232C

Power supply: Input Rating: Grid side: 3-phase 3-wire 400±40V, 50 Hz ±2 Hz or 60 Hz ±2 Hz

Overvoltage category II

Power factor: At maximum load: 0.9 or higher

Input power: No load: 800 VA or less

Input current: At maximum load (at AC400V): 60 Arms

At maximum load (at AC360V): 73Arms

Recommended circuit breaker: AC 100A

Mass: Main unit only: Approximately 750kg or less

Size: Excluding protrusions: W600 × H1977.5 × D900mm

Cooling method: Forced air cooling by fan

Withstand voltage: Input-Output: No abnormalities were observed when AC1800V was applied for 1 minute.

Input-FG section: No abnormalities were observed when AC1800V was applied for 1 minute.

Insulation resistance: Input-FG section: DC500 V, 30 MΩ or more

It can be used as both an AC and DC electronic load.

Industry-leading regenerative efficiency of over 90%

Individually, it can handle 50kW, and when connected in parallel, it can handle a maximum of 250kW.