KEISOKU GIKEN AC Electric Load 3270 Series | PT. NIHON DENKEI INDONESIA Jakarta

The "3270 series" achieves space saving by significantly reducing the size compared to the conventional "3260A series"

The capacity can be expanded from 1.875kW to single-phase/three-phase 11.25KW by master-slave. It also supports AC rectification load simulation such as UPS evaluation. In addition, the rack pack type has a built-in single-phase/three-phase switching unit.

AC Electric Load

Model:

3270 Series

Maker:

KEISOKU GIKEN

Specification

3270 / 3271 / 3272

type name		3270	3271	3272
Electrical specifications
Rated power		3750W	2800W	1875W
Rated current		37.5Arms/112Apeak	28.0 Arms / 84.0 Apeak	18.7Arms/56.2Apeak
Rated voltage		50 to 350Vrms / 500Vdc
Rated frequency		DC, 40~440Hz (CC CP Mode) / DC~440Hz (LIN, CR, CV Mode)
OPP ( Over Power Protection )		3937Wrms or arbitrary set value	2940Wrms or arbitrary setting	1968Wrms or arbitrary setting
OCP ( over current protection )		39.37Arms or arbitrary set value	29.40Arms or arbitrary set value	19.68Arms or arbitrary set value
OVP ( overvoltage protection )		367Vrms / 525Vdc
OTP ( Over Temperature Protection )		can be
CC mode and linear CC mode	range	0-37.5A	0 to 28.0A	0 to 18.7A
	resolution	0.625mA	0.469mA	0.312mA
	Accuracy *2)	±(0.2% of setting + 0.4% of range) @50/60Hz ± (1% of setting + 1% of range) @DC ±(1% of setting + 2% of range) @400Hz
CR mode	range	1.6 to 32.0 kΩ	2.13 to 42.6kΩ	3.20 to 64.0kΩ
	Resolution *1)	0.0104mS	0.00781mS	0.00520mS
	Accuracy	±0.4% of (setting + range) @50/60Hz, ± (1% of setting + 4% of range)
CV mode	range	50 to 350Vrms / 500Vdc
	resolution	0.1V
	Accuracy	±(0.2% of setting + 0.2% of range)
CP mode	range	3750W	2800W	1875W
	resolution	0.1W
	Accuracy *2)	±(0.2% of setting + 0.2% of range) @50/60Hz/DC ±(0.2% of setting + 4% of range) @400Hz
CF	range	√2 to 5
(CC mode, CP mode)	resolution	0.1
(CC mode, CP mode)	Accuracy	(1% / lrms) + 2% FS .
PF	range	0 to 1 (lag or lead)
(CC mode, CP mode)	resolution	0.01
(CC mode, CP mode)	Accuracy	2% FS .
UPS efficiency measurement	Non-linear mode
	operating frequency	Auto ; 40-440Hz
	Current range	0-37.5A	0 to 28.0A	0 to 18.7A
	PF range	0 to 1
PV system efficiency measurement (inverter: 80% distortion)	Resistance value + non-linear mode
	operating frequency	Auto ; 40-440Hz
	Current range	0-37.5A	0 to 28.0A	0 to 18.7A
	resistance range	1.6 to 32kΩ	2.13 to 42.7kΩ	3.2 to 64kΩ
UPS backup time measurement (CC mode, LIN mode, CR mode, CP mode)	UVP (VTH)	50 to 350Vrms / 500Vdc
	UPS Back-Up Time	1 to 99999 sec. (>27H)
Battery discharge function measurement (CC mode, LIN mode, CR mode, CP mode)	UVP (VTH)	50 to 350Vrms / 500Vdc
	battery discharge time	1 to 99999 sec. (>27H)
UPS offline transfer time measurement	Current range	0-37.5A	0 to 28.0A	0 to 18.7A
	UVP (VTH)	2.5V
	Time range	0.15mS to 999.99msec.
turbo mode	Maximum current (ON)	75.0 Arms	56.0 Arms	37.5 Arms
turbo mode	Maximum current (OFF)	37.5 Arms	28.0 Arms	18.7 Arms
Fuse test mode	trip time	0.1 to 1.0 sec.
	non-tripping time	0.1 to 9999.9 sec.
	Measurement accuracy	±0.006sec.
	number of repetitions	0 to 255
Short/ OPP / OCP test function	short circuit time	0.1S ~ 1sec./ 0.1S ~ 10sec. Or Cont.
Programmable inrush current simulation *4)	starting current	0 to 75A	0 to 56A	0 to 37.5A
	step time	0.1mS to 100mS
	stop current	0 to 37.5A	0 to 28A	0 to 18.75A
Programmable surge current simulation *4)	S1&S2 current	0 to 75A	0 to 56A	0 to 37.5A
	T1&T2 time	0.01S～0.5S
	S3 current	0 to 37.5A	0 to 28A	0 to 18.75A
	T3 time	0.01S to 9.99Sec. or Cont.
	OPP / OCP step time	100msec., up to 10 Steps / 100msec.
voltage display	range	500V
	resolution	0.01V
	Accuracy	±0.1% of (reading + range)
	parameter	Vrms, VMax/Min, +/-Vpk
current display	range	18.7 Arms / 37.5 Arms	14.0 Arms / 28.0 Arms	9.37 Arms / 18.7 Arms
	resolution	0.4mA/0.8mA	0.3mA/0.6mA	0.2mA/0.4mA
	Accuracy *2)	±(0.1% of reading + 0.1% of range) @50/60Hz ±(0.4% of reading + 0.4% of range) @DC ±(0.4% of reading +4% of range) @400Hz
	parameter	Irms, VMAX/MIN, +/-Ipk
power display	range	3750W	2800W	1875W
	resolution	0.0625W	0.0468W	0.0312W
	Accuracy *2)	±(0.2% of reading + 0.2% of range) @50/60Hz/DC ±(0.2% of reading + 4% of range) @400Hz
	VA display	Calculated from current and voltage measurement results
Power factor display	range	+/- 0.000~1.000
Power factor display	Accuracy	±(0.002±(0.001/PF)*F)
frequency display	range	DC, 40~440Hz
frequency display	Accuracy	0.002
Other parameter display		VA, VAR, CF_I, Ipeak, Imax, Imin, Vmax, Vmin, IHD, VHD, ITHD, VTHD
Master-slave function		○
External analog input (optional)		FS / 10Vdc, resolution 0.1V
External sync input		TTLs
Voltage monitor output (isolated)		±500V / ±10V
Current monitor output (isolated)		112Apk / ±10Vpk	±84.0Apk / ±10Vpk	56.2Apk / ±10Vpk
Option interface		GPIB, RS-232, LAN, USB
General specifications
Input power rated voltage		AC 100V/200V ±10%, 50/60Hz
operating temperature		0~40℃
Dimensions (W×H×D)		440 x 188 x 558mm
mass		33.5kg	27.5kg	21.5kg

*1) mS = milli siemens*2) Accuracy is not guaranteed in the range of 5% or less of the rated current.
3270 37.5[A] x 5% = 1.9[A]3271 28.0[A] x 5% = 1.4[A]3272 18.7[A] x 5% = 0.9[A]

*3) When using the master-slave function, the following functional restrictions apply.

*4) This function is an additional function accompanying the update after the release. This is a function that we started installing in our products shipped after August 2019. For details, please contact our sales department.

	Store recall	Test functions (Short, OCP , OPP …)	Analog programming input	V-monitor	Monitor	SYNC input
boost mode	×	×	×	○	○	○
3PH mode	×	○	×	○	○	○

○: Available ×: Not available

3273 / 3274

type name		3273	3274
Electrical specifications
Rated power		3750W	2800W
Rated current		28 Arms / 84 peaks	18.75 Arms / 56.25 Apeak
Rated voltage		50-480Vrms / 700Vdc
Rated frequency		DC, 40~440Hz (CC CP Mode) / DC~440Hz (LIN, CR, CV Mode)
OPP ( Over Power Protection )		3937.5Wrms or arbitrary set value	2940Wrms or arbitrary setting
OCP ( over current protection )		29.4Arms or arbitrary set value	19.687Arms or arbitrary set value
OVP ( overvoltage protection )		367.5Vrms / 525Vdc
OTP ( Over Temperature Protection )		can be
CC mode and linear CC mode	range	0 to 28A	0 to 18.75A
	resolution	0.5mA	0.3125mA
	Accuracy *2)	±(0.2% of setting + 0.4% of range) @50/60Hz ±(1% of setting + 1% of range) @DC ±(1% of setting + 2% of range) @400Hz
CR mode	range	2.0 to 40kΩ	3.2 to 64kΩ
	Resolution *1)	0.0083333mS	0.0052083mS
	Accuracy	±0.4% of (setting + range) @50/60Hz, ± (1% of setting + 4% of range)
CV mode	range	50-350Vrms / 500Vdc
	resolution	0.1V
	Accuracy	±(0.2% of setting + 0.2% of range)
CP mode	range	3750W	2800W
	resolution	0.1W
	Accuracy *2)	±(0.2% of setting + 0.2% of range) @50/60Hz/DC ±(0.2% of setting + 4% of range) @400Hz
CF (CC mode, CP mode)	range	√2 to 5
	resolution	0.1
	Accuracy	(1% / lrms) + 2% FS .
PF (CC mode, CP mode)	range	0-1 (lag or lead)
	resolution	0.01
	Accuracy	2% FS .
UPS efficiency measurement	Non-linear mode
	operating frequency	Auto ; 40-440Hz
	Current range	0 to 28A	0 to 18.75A
	PF range	0 to 1
PV system efficiency measurement (inverter: 80% distortion)	Resistance value + non-linear mode
	operating frequency	Auto ; 40-440Hz
	Current range	0 to 28A	0 to 18.75A
	resistance range	2.0 to 40kΩ	3.2 to 64kΩ
UPS backup time measurement (CC mode, LIN mode, CR mode, CP mode)	UVP (VTH)	50-350Vrms / 500Vdc
	UPS Back-Up Time	1 to 99999 sec. (>27H)
Battery discharge function measurement (CC mode, LIN mode, CR mode, CP mode)	UVP (VTH)	50-350Vrms / 500Vdc
	battery discharge time	1 to 99999 sec. (>27H)
UPS offline transfer time measurement	Current range	0 to 28A	0 to 18.75A
	UVP (VTH)	2.5V
	Time range	0.15mS to 999.99msec.
turbo mode	Maximum current (ON)	56.0 Arms	37.5 Arms
turbo mode	Maximum current (OFF)	28.0 Arms	18.75 Arms
Fuse test mode	Trip time & non-trip time	(Turbo ON) 0.1 to 1.0 sec.
	(Turbo OFF) 0.1 to 9999.9 sec.
	Measurement accuracy	±0.006sec.
	number of repetitions	0 to 255
Short/ OPP /OCP test function	short circuit time	(Turbo ON) 0.1S～1sec./ (Turbo OFF) 0.1S～10sec. Or Cont.
	OPP /OCP step time	(Turbo ON) 100msec., up to 10 Steps / (Turbo OFF) 100msec.
	OCP Istop	(Turbo OFF) 28.0 Arms (Turbo ON) 56.0 Arms	(Turbo OFF) 18.75 Arms (Turbo ON) 37.5 Arms
	OPP Pstop	(Turbo OFF) 3750W (Turbo ON) 7500W	(Turbo OFF) 2800W (Turbo ON) 5600W
Programmable inrush current simulation *4)	starting current	0 to 56A	0 to 37.5A
	step time	0.1mS to 100mS
	stop current	0 to 28A	0 to 18.75A
Programmable surge current simulation *4)	S1&S2 current	0 to 56A	0 to 37.5A
	T1&T2 time	0.01S～0.5S
	S3 current	0 to 28A	0 to 18.75A
	T3 time	0.01S to 9.99Sec. or Cont.
voltage display	range	500V
	resolution	0.01V
	Accuracy	±0.1% of (reading + range)
	parameter	Vrms, VMax/Min, +/-Vpk
current display	range	14 Arms / 28 Arms	9.375 Arms / 18.75 Arms
	resolution	0.3mA/0.6mA	0.2mA/0.4mA
	Accuracy *2)	±(0.1% of reading + 0.1% of range) @50/60Hz ±(0.4% of reading + 0.4% of range) @DC ±(0.4% of reading +4% of range) @400Hz
	parameter	Irms, VMAX/MIN, +/-Ipk
power display	range	3750W	2800W
	resolution	0.0625W	0.05W
	Accuracy *2)	±(0.2% of reading + 0.2% of range) @50/60Hz/DC ±(0.2% of reading + 4% of range) @400Hz
	VA display	Calculated from current and voltage measurement results
Power factor display	range	+/- 0.000~1.000
Power factor display	Accuracy	±(0.002±(0.001/PF)*F)
frequency display	range	DC, 40~440Hz
frequency display	Accuracy	0.002
Other parameter display		VA, VAR, CF_I, Ipeak, Imax, Imin, Vmax, Vmin, IHD, VHD, ITHD, VTHD
power on loading		With power-on loading function
Load ON / OFF angle specification		Can be specified between 0 and 359 degrees for the angle at which the load starts or stops
Master-slave function (3-phase application) *3)		Up to 7 slave units for 1 master unit
External analog input (optional)		FS / 10Vdc, resolution 0.1V
External sync input		TTLs
Voltage monitor output (isolated)		±500V / ±10V
Current monitor output (isolated)		±84Apk / ±10Vpk	±56.25Apk / ±10Vpk
Option interface		GPIB, RS-232, LAN, USB
General specifications
Input power rated voltage		AC 100V/200V ±10%, 50/60Hz
operating temperature		0 to 40°C
operating humidity		20 to 85% RH (non-condensing)
Storage temperature		-20 to 70°C
storage humidity		20 to 85% RH (non-condensing)
Dielectric strength (between input and FG)		AC1500V, 1 minute
Dielectric strength (between input and load terminals)		AC3000V, 1 minute
Dimensions (W×H×D)		440x188x558mm
mass		33.5kg	27.5kg

*1) mS = milli siemens*2) Accuracy is not guaranteed in the range of 5% or less of the rated current.
3273 28.0[A] x 5% = 1.4[A] 3274 18.75[A] x 5% = 0.938[A]

*3) When using the master-slave function, the following functional restrictions apply.

	Store recall	Test functions (Short, OCP , OPP …)	Analog programming input	V-monitor	Monitor	SYNC input
boost mode	×	×	×	○	○	○
3PH mode	×	○	×	○	○	○

○: Available ×: Not available

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