KIKUSUI Bidirectional High-Capacity DC Power Supply PXB Series

For the Progressive “ X” electric applications

The PXB series of bidirectional high-capacity DC power supplies condenses a 20 kW large-capacity output into a 3U-size chassis. Not only handling high voltages of 1500 V, but also capable of both power and regeneration in both directions in a single unit. We provide a new power supply test environment for electrical and electronic equipment that is becoming increasingly high-powered. In addition, a variety of analog, digital, and communication interfaces are provided for optimal operation at any stage of research, development, and manufacturing! A new generation of bidirectional DC power supplies that support the progression of advanced technologies.

Bidirectional High-Capacity DC Power Supply

Model:

PXB Series

Maker:

KIKUSUI ELECTRONICS CORPORATION

Features

High power density: 20 kW in 3U size
A single unit handles both power and regeneration
Rated output voltage 50 V/ 250 V/ 500 V/ 1000 V/ 1500 V
Select a model with an input voltage from 200 Vac (3-phase) or 400 Vac (3-phase)
Continuous operation at rated power at ambient temperature of 50°C (Excluding some models)
Up to 10 units (200 kW) can be operated in parallel
Equipped with touch panel display
LAN, USB, RS232C, external analog control (isolated type) standard
Regenerative function (on-site)
External control I/O is standard for both NPN and PNP type PLCs

Specifications

Output rating

Item	PXB20K-50	PXB20K-250	PXB20K-500	PXB20K-1000	PXB20K-1500
Rated power	±20000 W	±20000 W	±20000 W	±20000 W	±20000 W
Rated voltage (source) *1	0 V to 50 V	0 V to 250 V	0 V to 500 V	0 V to 1000 V	0 V to 1500 V
Operating voltage (sink) *2	3 V to 50 V	15 V to 250 V	10 V to 500 V	20 V to 1000 V	30 V to 1500 V
Rated current *1	±800 A	±200 A	±120 A	±60 A	±30 A

*1. Limited by the maximum output power. *2. Operating voltage at which the rated sink current can be applied.

Output voltage

Item			PXB20K-50	PXB20K-250	PXB20K-500	PXB20K-1000	PXB20K-1500
Maximum settable voltage			52.5 V	262.5 V	525 V	1050 V	1575 V
Setting accuracy			±(0.2 % of setting + 0.1 % of rating)
Resolution			0.005 V	0.02 V	0.05 V	0.1 V	0.1 V
Power fluctuation*1			±10 mV	±50 mV	±100 mV	±200 mV	±300 mV
Load variation *2			±40 mV	±125 mV	±250 mV	±500 mV	±750 mV
Remote sensing Maximum compensation voltage (reciprocating)			10 % of rating
Internal resistance setting upper limit			63 mΩ	1575 mΩ	5250 mΩ	21000 mΩ	63000 mΩ
Internal resistance setting resolution			1 mΩ	1 mΩ	1 mΩ	2 mΩ	5 mΩ
Response switching			FAST, SLOW
Slew rate switching (TYP)			12.5 V/ms or more *3	62.5 V/ms or more *3	125 V/ms or more *3	250 V/ms or more *3	375 V/ms or more *3
			12.5 V/ms	62.5 V/ms	125 V/ms	250 V/ms	375 V/ms
			1.25 V/ms	6.25 V/ms	12.5 V/ms	25.0 V/ms	37.5 V/ms
			0.125 V/ms	0.625 V/ms	1.25 V/ms	2.50 V/ms	3.75 V/ms
			0.0125 V/ms	0.0625 V/ms	0.125 V/ms	0.250 V/ms	0.375 V/ms
Source only *4	Transient response *5		8 ms or less	8 ms or less	8 ms or less	10 ms 以下	10 ms 以下
	Ripple noise *6	p-p*7	250 mV	375 mV	1000 mV	1500 mV	2500 mV
	Ripple noise *6	rms*8	30 mV	125 mV	250 mV	500 mV	750 mV
	Rise time *9	Full load *10	10 ms
	Rise time *9	No load	10 ms
	Fall time *11	Full load *10	10 ms
	Fall time *11	No load	10 ms

*1. 180 Vac to 252 Vac for 200 Vac input, 342 Vac to 504 Vac for 400 Vac input. At the constant load.
*2. The amount of change that occurs when the load is changed from no load to full load (rated output power/rated output voltage) with rated output voltage. The value is measured at the sensing point.
*3. MAX will appear on the display.
*4. In the case that the CV mode response setting is set to FAST.
*5. The amount of time required for the output voltage to return to a value within “rated output voltage ±(0.1 % + 10 mV).” The load current fluctuation is 50 % to 100 % of the maximum current with the set output voltage.
*6. At the rated output current. Values measured using JEITA RC-9131C probe and 100:1 probe.
*7. Measurement frequency band: 10 Hz to 20 MHz
*8. Measurement frequency band: 10 Hz to 1 MHz
*9. 10 % to 90 % of the rated output voltage.
*10.For a pure resistance.
*11. 90 % to 10 % of the rated output voltage.

Output current

Item	PXB20K-50	PXB20K-250	PXB20K-500	PXB20K-1000	PXB20K-1500
Settable maximum source current *1	+840 A	+210 A	+126 A	+63 A	+31.5 A
Settable maximum sink current *1	-840 A	-210 A	-126 A	-63 A	-31.5 A
Seamless setting current range *1	-840 A to +840 A	-210 A to +210 A	-126 A to +126 A	-63 A to +63 A	-31.5 A to +31.5 A
Setting accuracy	±(0.75 % of rating)
Resolution	0.1 A	0.02 A	0.01 A	0.005 A	0.002 A
Line regulation	±1600 mA	±400 mA	±240 mA	±120 mA	±60 mA
Load regulation	±1600 mA	±400 mA	±240 mA	±120 mA	±60 mA
Rise time (Short-circuit) (TYP) *2	5 ms
Fall time (Short-circuit) (TYP) *3	5 ms
Charge/discharge switching time (TYP)	10 ms
Response switching	FAST, SLOW
Slew rate switching (TYP) *4	200 A/ms or more *3	50 A/ms or more *3	30 A/ms or more *3	15 A/ms or more *3	7.5 A/ms or more *3
	200 A/ms	50 A/ms	30 A/ms	15 A/ms	7.5 A/ms
	20 A/ms	5 A/ms	3 A/ms	1.5 A/ms	0.75 A/ms
	2 A/ms	0.5 A/ms	0.3 A/ms	0.15 A/ms	0.075 A/ms
	0.2 A/ms	0.05 A/ms	0.03 A/ms	0.015 A/ms	0.0075 A/ms

*1. During parallel operation, this will be the value multiplied by the number of units in the configuration.
*2. In the case that the CC mode response setting is set to FAST: Applied in response to changes from 10 % to 90 % of rated output current.
*3. In the case that the CC mode response setting is set to FAST: Applied in response to changes from 90 % to 10 % of rated output current.
*4. MAX will appear on the display.

Output power

Item	Common to all models
Settable maximum source power	+21000 W
Settable maximum sink power	-21000 W
Seamless setting power range	-21000 W to +21000 W
Setting accuracy *1	±（0.5 % of power rating + 0.5 % of current rating × Vout）
Resolution	2 W

*1. Equal to or higher than 5 % of the rated power is guaranteed. Less than 5 % of the rated power is guaranteed as a TYP value.

General specifications

Item		PXB20K-50	PXB20K-250	PXB20K-500	PXB20K-1000	PXB20K-1500
Weight		Approx. 41 kg	Approx. 39 kg	Approx. 38 kg	Approx. 37 kg	Approx. 37 kg
Dimensions		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 (non-condensing)
	Storage temperature	-25 °C to +60 °C (-13 °F to 140 °F)
	Storage humidity	90 %rh or less (non-condensing)
	Altitude	Up to 2000 m
Cooling method		Forced air cooling using fan
Accessories		AC INPUT terminal cover, connector kit for external control (1 set), chassis connection wire, DC OUTPUT terminal cover, screws for DC OUTPUT terminal (1 set), EXT SYNC connector cover, SENSING terminal cover, SENSING connector (2 pieces), synchronous operation signal cable kit, For Safety (1 copy), China RoHS sheet (1 sheet), start guide (1 copy), heavy object warning seal (1 sheet)
Withstanding voltage	Between input and GND	2200 Vac, 1 minute
	Between input and output	2200 Vac, 1 minute
	Between output and GND	500 Vdc, 1 minute	1000 Vdc, 1 minute	1800 Vdc, 1 minute	1800 Vdc, 1 minute	3000 Vdc, 1 minute
Insulation resistance	Between input and GND	30 MΩ, 500 Vdc
Insulation resistance	Between input and output	30 MΩ, 500 Vdc	30 MΩ, 600 Vdc	30 MΩ, 1000 Vdc
Isolation voltage		± 250 V	± 600 V	± 1000 V	± 1000 V	+2000 V/-1000 V
Electromagnetic compatibility 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) UL 61010-1 6 CAN/CSA -C 22.2 NO.61010-1 *6

*1. Does not apply to specially ordered or modified products.
*2. Only for models with CE marking / UKCA marking 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.
*6. Only on models that have cTUVus marking on the panel.

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