20kW to 50kW Power Expansion
It is adapted to 14 difference loading powers and AC input types by paralleling 2 or more units.
• Single models can be used at 3-phase application by the combination of multiple units.
• It is adapted to single phase, 3-wire system by connecting multiple single phase units.
（Single phase model）
|Master/Slave||DC||1～5 sets（Max : 50kW）|
|AC||Single phase, 2-wire||1～5 sets（（Max : 50kW）|
|Single phase, 3-wire||2 / 4 sets（（Max : 40kW）|
|3-phase, 3-wire||3 sets（（Max : 30kW）|
● AC Electronic Load
단상 2선, 3선부터 3상 3선까지 연결가능합니다.
480VAC까지 테스트 가능합니다. (단상모델 선택시)
Phase lead and lag setting
It can simulate Capacitive load (C), Resistive load (R) as well as Inductive load (L) all by itself while it can set the current phase from 0 ～ -1 and 0～+1. The phase lead and the phase lag can be set by the angle as well (-90deg ～ 0 ～ +90deg).
Crest Factor Setting
The crest factor can be set from 1.4 to 4.0 in 0.1 increment at the AC Load mode. This feature is suitable to
simulate such as capacitor input rectifier circuit of switching power supplies.
400Hz까지 대응이 가능합니다.（Factory option）
● DC Electronic Load
It can test as high as 680V
As voltage rating of electronic devices are increasing especially devices for electric vehicles, it is designed and rated as 680VDC max.
Equipped with 5 basic loading modes
From high power DC/DC converters to Chargers (AC/DC converters), Quick-Chargers, High Power Batteries, the following 5 functions are equipped.
MPPT mode（Hill Climbing Method）
The I/V characteristic test of PV panel is possible as it is incorporated MPPT mode. Without using a power conditioner which is incorporated MPPT feature, this electronic load alone can test PV directly for various parameters.
Soft Start Function
It delays the current start point from the rising edge of the DCvoltage.
It is selected among 1, 2, 5 and 10 seconds in accordance to the characteristics of the DUT.
Isolated voltage and current monitors (BNC output) are available as option.
● Communication/External Control Function
USB, RS232C and PLC interfaces are equipped as standard which enable it to control remotely.
In addition, GP-IB and LAN (Ethernet) interfaces are available as option.
External Control by PLC
There are contact input and analog signal (0 ～ 10V) input from PLC for external control. External control is simply possible through PLC without communication or command.
Infrared Remote Control (option）
Optional infrared remote controller is convenient. This can be used as a numeric key pad to enter such as the current value.
● Protective function
The following 8 protections are incorporated as to protect the electronic load.
Emergency Stop and Isolation
Emergency Stop switch is on the front panel which enables GATE BLOCK of the power line. There is a transformer which is isolating the electronic load and the grid.
● Grid connection / Regenerative Function
Highly Efficient Regenerative Function
Over 90% (at rated loading) of power is reused by the regenerative circuit by our technology which is backed by the bi-directional product development for smart grid. This brings big change on electronic load testing from “Wasting Power as Heat” to ” Recycle Electronic Power”.
Conforming to JET Standard for Grid Connection
It is equipped with Grid Monitor and Protectors which are found in such as power conditioners available in the market. With those monitor system and protectors, it can recycle electronic energy and used safely manner.
Grid power measurement (Factory option)
This option enabled to measure the integrated grid power and effective power (Instantaneous power)
Input Voltage Selection of the Grid Side （Factory option）
Input voltage of 220V and 230V, 3-phase, 4-wire are also available as option.
|Low range||High range|
|Load section-Rating||Rated power||0～10kW|
|Operating frequency||DC, 40～70Hz (400Hz: Optional)|
|Rated current||60Arms/120Apeak 60Adc||30Arms/60Apeak 30Adc|
|Rated voltage||50 – 240Vrms 70 – 340Vdc||100 – 480Vrms 140 – 680Vdc|
|Minimum operating voltage||50Vrms 70Vdc||100Vrms 140Vdc|
|CC mode||Setting range||0～60Arms 60Adc||0～30Arms 30Adc|
|PF setting range||± 1(AC mode only)|
|PF resolution||0.01(AC mode only)|
|Phase setting range||± 90deg(AC mode only)|
|Phase setting resolution||1deg(AC mode only)|
|CR mode||Setting range||0.8～3.4kΩ||3.3～6.8kΩ|
|Accuracy||Converted current value ± 1% ± 0.2A|
|CV mode （DC mode only）||Setting range||70～340V||140～680V|
|CP mode||Setting range||0～10kW|
|MPPT mode （DC mode only）||Hill Climbing Method||DC mode only|
|CF mode （AC mode only）||Setting range||1.4 – 4.0 (Limitation may apply to the peak current)|
|Current limit||Setting range||Low : 0 – 120A High : 0 – 60A|
|Resolution||Low : 0.5A High : 1.0A|
|Voltage limit||Setting range||Low : 70 – 340V High : 140 – 680V|
|Power limit||Setting range||100～10kW|
|Soft-start||Setting range||1, 2, 5, 10sec|
|Voltage measurement||Measurement range||748V(680V+10%)(rms)|
|Current measurement||Measurement range||66A(60A+10%)(rms)|
|Peak current measurement||Measurement range||132A(120A+10%)|
|Effective power measurement||Measurement range||11kW(10kW+10%)|
|Apparent power measurement||Measurement range||11kVA(10kVA+10%)|
|PF measurement||Measurement range||-1～+1|
|Frequency measurement||Measurement range||40～70Hz|
|Protection||Emergency stop, Inside OVP, Inside OHP, OCP, OVP, OPP, OFP, Low frequency, Isolated opertation detect-passive, Isolated operation detect-active, DC side UVR, OUR, OFR, UFR, OCR|
|External control||DI||Photo-coupler input|
|DO||Photo-coupler output (Open collector)|
|AI||0 ～ 10V(CC/CP/phase difference)|
|Monitor output (Option)||Voltage||10V/1000V/BNC/50 Ω / insulated output|
|Current||10V/200A/BNC/50 Ω / insulated output|
|Parallel connection (Master/Slave)||1P2W||1～4 units|
|General||Operating area||Grid side input：202V ± 20V, 50/60Hz Load side：0Arms ～ 60Arms, 0 ～ 10000W/0 ～ 12000W|
|Power consumption||200VA (at standby state)|
|Dimensions (W x H x D)||450mm x 638mm x 700mm|
|Ambient temperature||0 ～ 50℃ (Derating necessary over 40℃ )|
|Ambient humidity (RH)||5 ～ 85%RH (No dew condensation, no corrosive gas)|