About IT8900G/L
IT8900G/L series high speed and high power DC electronic load features as fast current rise and fall and low voltage loading capability. It has three voltage ranges: 150V, 600V, 1200V, and the maximum power ranges from 2kW to 54kW for a single unit. it has wide-range design, independent master unit control.It supports master-slave parallel connection, and the maximum power can be extended to 600kW. It has high power density, only 4U height unit can input 6kW. IT8900G/L has up to 8/4 operating modes with dynamic mode, OCP, OPP test, auto test and battery test. It has built-in CAN, LAN, GPIB, USB, RS232 and analog interfaces, etc., and has full protection. The IT8900G/L can be applied to the testing of EV batteries, A/D power supplies, server power supplies, DC charging piles, on-board chargers (OBCs), industrial motors, fuel cells, power electronics, and other power electronics products.
Features
♦ Maximum power of single unit: 2-54kW
♦ Voltage range: 150V, 600V, 1200V
♦ Current range: 4U module up to 600A, master/slave parallel control, power expansion up to 600kW
♦ Multiple operating modes: CC, CV, CR, CP, CC+CV, CV+CR, CR+CC, CP+CC *1
♦ Fast current rise and fall and 30kHz dynamic mode *2
♦ CV loop speed adjustable to match different power supplies
♦ Low voltage and high current loading, internal resistance about 0.7mΩ
♦ 500kHz high speed voltage and current sampling rate
♦ Time measurement, battery discharge test
♦ Short circuit simulation, automatic test function
♦ Soft power on, soft power off to prevent voltage fluctuation during on/off
♦ Timing control list programming, OCP/OPP test
♦ I-monitor
♦ Built-in LAN, USB, RS232, GPIB, CAN, external analog
♦ Highly accurate voltage and current measurement
♦ Support OVP, OCP,OPP, OTP, current oscillation protection, current limit, power limit, fan blocking protection, reverse alarm, etc.
♦ Power failure memory function, memory capacity of 100 groups
♦ Independent control by master unit , easy to maintain and install
*1 IT8900L only supports CC, CV, CR, CP
*2 30 kHz only for 150V G-Series models
Models
Application
♦ Testing of server power supplies, high-voltage UPS, and communication power supplies
♦ Testing of virtual loads for natural energy sources (solar arrays, wind power generation)
♦ Testing of DC-DC modules, AC-DC modules and other power electronic components
♦ Discharge testing of fuel cells, power batteries, and lead storage batteries
♦ Aging test of fuses and relays
♦ Smart manufacturing, safety testing of industrial motors (e.g., unmanned trucks, robots, etc.)
♦ Testing of DC charging piles, on board chargers, power electronics, etc.
Low voltage loading
The IT8900G/L series has an ultra-low on-resistance and two operating ranges, the 150V model has an internal resistance of about 0.7m Ω, and the lowest single-unit on-load voltage is < 0.1 V for 60 A input at the low range, and 0.75 V for 600 A. It is particularly suitable for testing fuel cells, supercapacitors, solar cells, DC-DC converters, and other low-voltage, high-current electronic devices.
Dynamic mode up to 30kHz
The IT8900G series electronic load (150V models) features dynamic modes up to 30kHz*. The upgraded all-in-one internal structure allows the it to dramatically improve loop response and stability. It can be used for testing the transient response of switching power supplies, as well as testing the instantaneous high-current tolerance of DC-DC converters and batteries.
List
Both dynamic and list modes of the IT8900G/L series electronicloads are available in CC mode. By editing the step pulse width andslope of each step, it can generate a variety of complex sequencesto help complete tests with various waveforms. And in CC mode, theIT8900G/L can set the rise and fall speed.
Battery Discharge
The IT8900G/L series has a battery discharge function, which canperform discharge test in constant current, constant resistance orconstant power mode. You can set the discharge cut-off conditionsby yourself: cut-off voltage, cut-off capacity and discharge time. Ifany one of the three conditions is satisfied, the discharge will stop.Battery voltage, time and discharged capacity can be observedduring the test
Battery Discharge
The IT8900G/L series supports the function of master-slave parallel connection and current equalization. Different power and voltage cabinets can be connected in parallel with no loss of functionality, including operation in CV mode. It can reach the power up to 600kWat most after parallel connection. A single cabinet can be operated independently for more flexible power configuration. It adopts analog and digital wiring separately, which makes the parallel performance more stable.
Specifications
Options & Accessories
