KIKUSUI High-Capacity Regenerative Electronic Load PXZ Series

High-Capacity Regenerative Electronic Load PXZ Series

The PXZ series of highly efficient, reliable, high-capacity regenerative electronic loads has a rated power of 20 kW in 3U. In addition to the constant-current, constant-resistance, constant-voltage, and constant-power operating modes, this series has an I-V characteristic function that allows the user to set arbitrary I-V characteristics for each CC and CV operating mode. The series is also equipped with various functions, such as sequence, pre-charge, synchronous operation, pulse, sine, and VMCB functions.

LAN, USB, and RS232C communication functions are included as standard, allowing easy integration into various evaluation systems. The PXZ series is highly scalable, and its capacity can be increased up to 500 kW when operating in parallel (up to 25 units).

High-Capacity Regenerative Electronic Load

Model:

PXZ Series

Maker:

KIKUSUI ELECTRONICS CORPORATION

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Features

20kW rated power in 3U
Maximum operating voltage of 1500 V
Operating modes: CC, CR, CV, CP
Up to 25 units (500 kW) can be operated in parallel
*Please consult with us if you would like to use 10 or more units in Parallel operation.
Equipped with a touch panel display
Pre-charge function
I-V characteristic function
Sequence function
LAN, USB, RS232C, external analog control (isolated type) as standard
Regenerative efficiency of over 90% (on-site regeneration)

Line up

SKU	Output Power [W]	Output CV [V]	Output CC [A]
PXZ20K-50	20kW	3 to 50	800
PXZ20K-500		10 V to 500 V	120
PXZ20K-1000		20 to 1000	60
PXZ20K-1500		30 V to 1500 V	30

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Specifications

Rating

Item	PXZ20K-50	PXZ20K-500	PXZ20K-1000	PXZ20K-1500
Rated power	20000W
Rated voltage (DC) *1	3V to 50V	10 V to 500V	20V to 1000V	30 V to 1500 V
Rated current *1	800A	120A	60A	30A

*1 Maximum input current and maximum input voltage are limited by maximum input power.

Constant voltage (CV) mode

Item	PXZ20K-50	PXZ20K-500	PXZ20K-1000	PXZ20K-1500
Maximum settable voltage	52.5V	525V	1050V	1575V
Setting accuracy	±(0.2 % of setting + 0.1 % of rating)
Resolution	0.005V	0.05V	0.1V	0.1V
Remote sensing Maximum compensation voltage (reciprocating) (TYP)	10% of rating
Response switching	FAST, SLOW
Slew rate switching (TYP)	12.5V/ms or more *1	125V/ms or more *1	250V/ms or more *1	375V/ms or more *1
	12.5V/ms	125V/ms	250V/ms	375V/ms
	1.25V/ms	12.5V/ms	25V/ms	37.5V/ms
	0.125V/ms	1.25V/ms	2.5V/ms	3.75V/ms
	0.0125V/ms	0.125V/ms	0.25V/ms	0.375V/ms

*1 MAX will appear on the display.

Constant Current (CC) mode

Item	PXZ20K-50	PXZ20K-500	PXZ20K-1000	PXZ20K-1500
Maximum settable current *1	+840A	+126 A	+63A	+31.5 A
Setting accuracy *2	±(0.75 % of rating)
Resolution	0.1A	0.01A	0.005A	0.002 A
Line regulation *3	±1600mA	±240 mA	±120mA	±60 mA
Load regulation *4	±1600mA	±240 mA	±120mA	±60 mA
Rise time（TYP） *5	1 ms
Fall time（TYP） *6	1 ms
Response switching	FAST, SLOW
Slew rate switching *1	800A/ms or more *7	120A/ms or more *7	60A/ms or more *7	30A/ms or more *7
	400A/ms	60 A/ms	30 A/ms	15 A/ms
	200A/ms	30 A/ms	15.0A/ms	7.5 A/ms
	20A/ms	3 A/ms	1.50A/ms	0.75 A/ms
	2A/ms	0.30A/ms	0.150A/ms	0.075 A/ms

*1. During parallel operation, this will be the value multiplied by the number of units in the configuration.
*2. Applies to a range of 1 % to 100 % of the rated current.
*3. 180 Vac to 252 Vac for 200 Vac input, 342 Vac to 504 Vac for 400 Vac input. At the constant load.
*4. This is the amount of change when the voltage is changed from the rated voltage and rated power to 1/10 of the rated voltage.
*5. In the case that the CC mode response setting is set to FAST. The time required for the input current in CC mode to change from 10 % to 90 % of the rated current when the input current
value is changed from 0 % to 100 % of the rated current. When the slew rate is set to MAX.
*6. In the case that the CC mode response setting is set to FAST. The time required for the input current in CC mode to change from 90 % to 10 % of the rated current when the input current
value is changed from 100 % to 0 % of the rated current. When the slew rate is set to MAX.
*7. MAX will appear on the display.

Constant resistance (CR) mode

Item	PXZ20K-50	PXZ20K-500	PXZ20K-1000	PXZ20K-1500
Conductance rating	160S	2400.0 mS	600.000mS	200.000 mS
Setting range	0S to 168S	0 mS to 2520.0 mS	0mS to 630.000mS	0 ms to 210.000 mS
Setting accuracy *1	±(0.5 % of setting + 0.5 % of rating)
Resolution	20mS	0.20 mS	0.05mS	0.02 mS
Response switching	FAST, SLOW

*1 Converted value at the input current.

Constant Power (CP) mode

Item	PXZ20K-50	PXZ20K-500	PXZ20K-1000	PXZ20K-1500
Maximum settable power *1	21000W
Setting accuracy *2	±(0.5 % of power rating + 0.5 % of current rating × Vin)
Resolution	2W

*1 During parallel operation, this will be the value multiplied by the number of units in the configuration.
*2 Applies to a range of 5 % to 100 % of the rated power. Rating indicates the rated current value.

General Specifications

Item		PXZ20K-50	PXZ20K-500	PXZ20K-1000	PXZ20K-1500
Weight		Approx. 41 kg (90.39 lbs)	Approx. 38 kg (83.78 lbs)	Approx. 37 kg (81.57 lbs)	Approx. 37 kg (81.57 lbs)
Dimensions		430 (16.93)(MAX455 (17.91))W × 128 (5.04)(MAX160 (6.30))H × 720 (28.35)(MAX980 (38.58))D mm (inches) Refer to Outline Drawing
Environmental conditions	Operating environment	Indoor use, overvoltage category II
	Operating temperature	0℃ to +40℃	0 °C to +50 °C (32 °F to +122 °F)
	Operating humidity	20% rh to 85% rh (no condensation)
	Storage temperature	-25 °C to +60 °C (-13 °F to +140 °F)
	Storage humidity	90 % rh or less (no condensation)
	Altitude	Up to 2000 m
Cooling method		Forced air cooling using fan
Accessories		AC INPUT terminal cover, External control connector kit (1 set), Chassis connection wire, DC INPUT terminal cover, DC INPUT terminal screws (1 pair), EXT SYNC connector cover, SENSING connector cover, SENSING connector (2 pc.), Synchronized operation signal cable kit, Safety Information (1 copy), China RoHS sheet (1 sheet), Getting Started Guide (1 copy), Heavy object warning label (1 piece)
Withstanding voltage	Between primary and FG	2200 Vac for 1 minute
	Between primary and secondary	2200 Vac for 1 minute
	Between secondary and FG	500 Vdc for 1 minute	1800 Vdc for 1 minute		3000 Vdc for 1 minute
Insulation resistance	Between primary and FG	30 MΩ, 500 Vdc
Insulation resistance	Between primary and secondary	30 MΩ, 500 Vdc	30 MΩ, 1000 Vdc
Isolation voltage		±250V	±1000V		+2000V/-1000V
Electromagnetic compatibility (EMC) 1 2		Complies with the requirements of the following directive and standards. EMC Directive 2014/30/EU EN 61326-1 (Class A *3)
Safety *1		Complies with the requirements of the following directive and standards. Low Voltage Directive 2014/35/EU 2 EN 61010-1 (Class I 4, Overvoltage category II, Pollution Degree 2 *5)

*1 Does not apply to specially ordered or modified products.
*2 Only for models with CE mark / UKCA mark on their body.
*3 This is a Class A instrument. This product is intended for use in an industrial environment. This product may cause interference if used in residential areas. Such use must be avoided unless the user takes special measures to reduce electromagnetic emissions to prevent interference to the reception of radio and television broadcasts.
*4 This is a Class I instrument. Be sure to ground this product’s protective conductor terminal. The safety of this product is guaranteed only when the product is properly grounded.
*5 Pollution is addition of foreign matter (solid, liquid or gaseous) that may produce a reduction of dielectric strength or surface resistivity. Pollution Degree 2 assumes that only non-conductive pollution will occur except for an occasional temporary conductivity caused by condensation.

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