Series of heavy duty laboratory power supplies up to 144 kW ITECH IT6000C

SHORT DESCRIPTION

Heavy Duty Laboratory DC Power Supply Series ITECH IT6000C can provide maximum power up to 144 kW (in one device) and up to 1.152 MW (with parallel connection of 8 devices). The IT6000C series is a new development from ITECH, released since the end of 2018. It has 69 power supply models with various combinations of output voltage up to 2250 V and current up to 2040 A.

All models of the series allow any combination of voltage and current within its maximum capacity. At the same time, both the generation of current and its consumption are ensured with simultaneous energy recovery. Each ITECH IT6000C series power supply has a configurable output impedance to accurately mimic real power sources such as solar panels or high-capacity batteries.

Among the many innovative features of the ITECH IT6000C series, it is worth noting the ability to test solar power equipment (inverters, etc.) according to the standards: EN50530, Sandia, NB / T32004, CGC / GF004 and CGC / GF035, as well as the ability to test automotive units according to the standards: DIN40839, ISO-16750-2, SAEJ1113-11, LV124 and ISO21848. You can download a full description of all the characteristics of the ITECH IT6000C heavy duty series below on this page in the section Documentation.

Main characteristics:
Max voltage: 80 V - 2 250 V (depending on the model).
Maximum current: 20 A - 2040 A (depending on the model).
Max Power: 6 kW - 144 kW (depending on the model).
Expansion of maximum power up to 1,152 MW (parallel operation of 8 racks).
Any combination of voltage and current is allowed within the maximum power.
Number of channels: 1. High precision and high resolution (up to 1 mV and up to 1 mA).
Bidirectional operation mode on current with recovery of 95% of the electric power.
Automatic overload protection modes: OVP, OCP, OPP, OTP.
Adjustable output impedance. Testing solar power equipment (inverters, etc.) according to standards: EN50530, Sandia, NB/T32004, CGC/GF004, CGC/GF035, etc. Testing automotive units according to standards: DIN40839, ISO-16750-2, ISO21848, etc.
Interfaces : USB, Ethernet and CAN (standard), IEEE-488.2 (GPIB) and RS-232 (optional).
Weight: 28 - 320 kg (depending on model). Working temperature: from 0°С to +50°С.
Heavy duty sources with a wide range of innovative features

Need an inexpensive power supply up to 3 kW? Watch the series ITECH IT6700H.
Need power supply AC current and voltage? Watch the series ITECH IT7600.
Would you like to see the whole list? See complete list of laboratory power supplies.
Difficult to decide on a model? See the guide: how to choose a laboratory power supply.

DETAILED DESCRIPTION

When comparing the new heavy duty series ITECH IT6000C with the previous powerful series ITECH IT6500, we can note an increase in maximum voltage (up to 2250 V compared to 1000 V), an increase in maximum current (up to 2040 A compared to 1200 A) and a significant increase in maximum power (up to 144 kW for the IT6144C model and up to 1,152 kW with eight IT6144C models connected in parallel).

The IT6000C series parallel connection technology is patented by ITECH. It is based on the use of fiber optic connections, which provides galvanic isolation of control signals between individual units, eliminates parasitic pickups, "ground loops", etc. When several IT6000C series devices are connected in parallel in one system, calibration is not necessary.

The table below shows 69 models of the ITECH IT6000C series. Models differ from each other in maximum voltage, maximum current and maximum power. Please note that the 6kW, 12kW and 18kW models are housed in a compact 3U chassis measuring just 483 x 151 x 802mm.

Bidirectional Operation of ITECH IT6000C Series

All models of the ITECH IT6000C series can both give current and absorb it. This ensures a smooth transition between the generation mode and the absorption mode, without voltage and current surges, as well as other undesirable transients. In the generation mode, the power supply provides high energy efficiency (efficiency up to 95%). In absorption mode, high efficiency and savings are also ensured: due to recuperation, up to 95% of the absorbed energy is returned back to the power grid.

The bidirectional mode of operation is used when testing batteries, their protection devices, and in other tasks where a device connected to a power supply can both consume current and give it away.

Adjustable output impedance in ITECH IT6000C series models

All IT6000C high-power laboratory power supplies have the ability to provide a given value of its output resistance. The range of resistance change is from 0 to 1 ohm (the maximum resistance value depends on the specific model).

The ability of the power supply to accurately maintain the set value of its internal resistance is used in battery charge and discharge tests, since a real battery always has a finite internal resistance, which, moreover, depends on various parameters. Any IT6000C series power supply running the ITS5300 software can effectively handle these tasks.

The second area of application of the specified output resistance is related to the emulation of the operation of solar panels, which, like batteries, have a non-zero value of the output resistance. With this function, ITECH IT6000C series power supplies running SAS1000 software can accurately simulate various solar panel operation modes, which is widely used to test and tune inverters.

Simulation of solar panels

Powerful power supplies of the ITECH IT6000C series are great for testing solar power inverters, as they have all the necessary functions for this: high output voltage (up to 2250 V), controlled internal resistance, fast response to load changes and specialized ITECH SAS1000 software.

The ITECH SAS1000 software was specifically designed to simulate solar panels using the ITECH IT6000C series laboratory power supplies and ITECH IT6000B. With the SAS1000 software, you can effectively test all types of inverters and converters. The program allows you to check how well the inverter tunes to the maximum power point MPPT (Maximum Power Point Tracking) when the state of the solar panels changes.

The ITECH SAS1000 program can perform static and dynamic performance testing of inverters and converters in accordance with standards: EN50530, Sandia, NB/T32004, CGC/GF004 and CGC/GF035. In addition to the standard "Table Mode" in which you can test against a table of exact values, the SAS1000 software also has a "Shadow Mode" that allows you to simulate the shading of an array of solar panels by clouds.

This screenshot shows the main window of the SAS1000 program in static test mode. At the bottom is an area where you can select one of three adjustable output voltages and one of eight adjustable output power levels (from 0 to 100%) with one click. The upper left graph shows the MPPT maximum power point corresponding to the given settings (yellow on the green graph of the current-voltage characteristic and blue on the red power graph).

Carrying out tests for compliance with automotive standards

All automotive electronics should work normally with dips and power surges caused by engine starts and stops, as well as sudden changes in engine speed while the car is moving. To unify such tests, various international standards are used: DIN40839, ISO 16750-2, ISO 21848, SAEJ1113-11 and LV124.

All models of ITECH IT6000C series contain a built-in set of test transients in full compliance with these standards, which allows you to quickly and efficiently test the operation of any automotive electrical equipment. Three standard voltages are supported: 12V, 24V and 48V.

Possibility to select stabilization priority

Rapid changes in the output voltage of the power supply, or rapid changes in the parameters of the load itself, can lead to unwanted transients, accompanied by jumps and dips in voltage and current.

To minimize these situations, users of the ITECH IT6000C series have the unique ability to control the feedback loop behavior of the power supply's output stabilization system. You can set stabilization priority: voltage or current. Do not confuse stabilization priority with stabilization mode - they are two different things. For example, on IT6000C series models, current stabilization can be prioritized even though the power supply is operating in voltage regulation (CV) mode. Conversely, you can turn on the power supply in current stabilization (CC) mode, but give the feedback loop of the output stabilization system priority of voltage stabilization.

The operation of this function is demonstrated below on two oscillograms. The upper yellow graph is the output voltage of the ITECH IT6000C series power supply, the vertical scale is 20 V per division. The lower green graph is the current flowing from the power supply to the load, the vertical scale is 25 A per division. In both cases, the power supply is programmed for voltage jumps, that is, it operates in the output voltage stabilization (CV) mode. But on the left graph is set to the standard voltage stabilization priority, and we see current surges in the load. And on the right graph is set current stabilization priority and load current surges immediately disappear.

Comparison of ITECH IT6000C series with two similar series: IT6000B and IT6000D

Simultaneously with a series of powerful bi-directional power supplies IT6000C ITECH released two very similar series (IT6000B and IT6000D), which differ from the IT6000C series in some features.

ITECH IT6000B Series contains all the functions of the IT6000C series, but in addition to them has a built-in electronic load with recovery of up to 95% of electricity, which allows the IT6000B series to perform various tests on the discharge of powerful batteries. But at the price of the IT6000B series models, they are significantly more expensive than the IT6000C series models of the same power.

ITECH IT6000D Series simpler than the IT6000C series in two main ways. Firstly, the IT6000D series can only supply current, but cannot consume it, that is, the IT6000D series is a classic power supply (without bidirectional mode) and, accordingly, there is no regeneration in it. Secondly, the IT6000D series does not have the ability to change its output impedance (it is always as low as possible), so it cannot emulate batteries, solar panels, and perform testing to automotive standards.

Due to the absence of some functions, the price of the IT6000D series is ten percent lower than that of the IT6000C series. Therefore, given such a small difference in price, it is always worth choosing the IT6000C series models, and only in case of particularly limited funding, consider similar models of the IT6000D series.

A comparison of the capabilities of the IT6000B, IT6000C, and IT6000D power supply series is shown in this table. You can download a full description of the characteristics of these three series below on this page in the section Documentation.

Design Features of ITECH IT6000C Heavy Duty Power Supply Series

The ITECH IT6000C series is characterized by very high power per unit volume of the case. The 6kW, 12kW, and 18kW models housed in a compact 3U chassis measuring just 483 x 151 x 802mm. Further, the increase in power comes in increments of 18 kW, which, accordingly, increases the height of the rack.

This photo shows the front view of the IT6018C-500-90 with a maximum voltage of 500V, a maximum current of 90A, and a maximum power of 18kW. The height of this case is 151 mm.

This photo shows the side view of the IT6018C-500-90 with a maximum voltage of 500V, a maximum current of 90A, and a maximum power of 18kW. The depth of this case is 802 mm.

The photo below shows the rear panel of the ITECH IT6018C-500-90 with a maximum output of 18kW. The width of this case is 483 mm. On the right are the power supply terminals from the three-phase power network. On the left are two powerful power supply output contacts, equipped with screw fastening. Next to the output contacts there is a green connector (SENSE) for automatic compensation of voltage drops in the connection wires.

In the upper central part of the rear panel there are communication interfaces for connecting the device with a computer (USB, Ethernet (LAN), CAN, etc.). When several models of the IT6000C series are connected in parallel, their operation is synchronized and the load is evenly distributed between them using the fiber optic system control bus SYSTEM BUS (two black SFP slots on the right).

The ITECH IT6000C 36 kW laboratory power supply models are 6U high and can be mounted in standard width instrument racks. Models 54kW and above are shipped already mounted in a wheeled rack. The more power, the greater the height of the rack and its weight. The rack height for 54kW and 72kW models is 15U, and for 90kW, 108kW, 126kW, and 144kW models, the rack height is 27U. This photo shows the appearance of two racks. Up to eight of these systems can be combined to increase the total power up to 1,152 kW.

Specifications of ITECH IT6000C Laboratory Power Supply Series

This table shows the specifications for the ITECH IT6018C-1500-30 (18kW, 1500V, 30A) model, which is part of the ITECH IT6000C high-power laboratory power supply series. The characteristics of other models with powers of 6 kW, 12 kW and 18 kW can be downloaded below on this page in the section Documentation. Exact specifications for 36kW and higher models are available from us upon request.

ITECH IT6000C bidirectional laboratory power supply kit

Options and accessories for ITECH IT6000C bidirectional laboratory power supplies

The ITECH IT6000C series heavy duty laboratory power supplies are all-inclusive. However, there are several options and accessories that allow you to expand their basic functionality:
- software SAS1000 for emulation of solar panels of any power;
- software SAS1000L for emulation of solar panels with power up to 15 kW;
- software ITS5300 to analyze the parameters of charge and discharge of batteries;
- software for battery emulation;
- removable modules for adding interfaces IEEE-488.2 (GPIB), RS-232 and Anolog;
- a set for parallel connection of IT6000C series power supplies.