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Electronic Loads

Current sinks are ideal for testing motors, generators, lighting, LEDs, batteries, power supplies, solar panls, etc.
“Electronic load or current sink”, describes a device that replaces an ohmic load resistor in an electronically controlled manner. In other words, a load refers to an “electronically controllable resistor”. They are therefore the counterpart to power supplies/sources that provide power.

We offer >400 models of electronic loads from 30 W to 750 kW, representing voltage ranges up to 2250 V and currents up to 20 kA. In addition, there are a variety of controls such as current and voltage controls or special controls such as power, resistance and shunt controls.

Many of the loads can be used in master/slave operation, making it possible to realize potent high-power loads.

Current sinks are ideal for testing motors, generators, lighting, LEDs, batteries, power supplies, solar panls, etc. “Electronic load or current sink”, describes a device that replaces an ohmic... read more »
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Electronic Loads

Current sinks are ideal for testing motors, generators, lighting, LEDs, batteries, power supplies, solar panls, etc.
“Electronic load or current sink”, describes a device that replaces an ohmic load resistor in an electronically controlled manner. In other words, a load refers to an “electronically controllable resistor”. They are therefore the counterpart to power supplies/sources that provide power.

We offer >400 models of electronic loads from 30 W to 750 kW, representing voltage ranges up to 2250 V and currents up to 20 kA. In addition, there are a variety of controls such as current and voltage controls or special controls such as power, resistance and shunt controls.

Many of the loads can be used in master/slave operation, making it possible to realize potent high-power loads.

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GW Instek PEL-2020B - View: front Programmable DC-Electronic Load | PEL-2000B-Series
GW Instek (Good Will Instruments)
GW-PEL-2000B-Serie

Spannung: up to 500 V, Strom: up to 70 A, Leistung: up to 350 W
Price on request
APM Technologies - Models of EL series Electronic DC load | EL Series
APM Technologies
AM-EL-Serie

OCP/OPP test function, 50kHz high-speed CC/CR dynamic mode, 500kHz highspeed voltage and current sampling rate
Price on request
MAGNA POWER WRx Series Programmable DC-Load | WRx Series
Magna-Power Electronics, Inc.
MPE-WRx-Serie

Power: 12.5 kW 1Ph, Input Voltage: 240, Voltage: up to 1000 V, Current: up to 130 A
Price on request
MAGNA-POWER ALx Series Programmable DC Load | ALx Series
Magna-Power Electronics, Inc.
MPE-ALx-Serie

Power: up to 20 kW 1Ph, Input Voltage: 240, Voltage: up to 1000 V, Current: up to 4800 A
Price on request
High Performance Regenerative Grid Simulator | IT7900P series High Performance Regenerative Grid Simulator |...
ITECH
IH-IT7900P-Serie

Power: up to 165 kVA, Voltage: up to 350 V, Current: up to 990 A, AC-Input frequency 45 Hz to 65 Hz
Price on request
Programmable single channel DC Power Supply | IT6000D series Programmable single channel DC Power Supply |...
ITECH
IH-IT6000D-Serie

6 kW - 144 kW, master-slave parallel, the power can be paralleled up to 1.152 MW, 80 - 2250 V, 30 - 2040 A
Price on request
Bidirectional, regenerative DC Power System | IT6000B series Bidirectional, regenerative DC Power System |...
ITECH
IH-IT6000B-Serie

Voltage: 0 – 2250 V, Current 0 – 2040 A, 18 kW in 3 U expandable, arbitrary generator, seamless switching
Price on request
Bidirectional, regenerative programmable DC Power Supply | IT6000C series Bidirectional, regenerative programmable DC...
ITECH
IH-IT6000C-Serie

max. 144 kW, expandable up to 1.152 MW by parallel connection, 0 - 2250 V, 0 - 2040 A
Price on request
ITECH IT8400, 6 kW High Performance DC Electronic Load | IT8400...
ITECH
IH-IT8400-Serie

Voltage: up to 1200 V, with master-slave parallel connection, Current: up to 15000 A, Power: up to 600 kW
Price on request
MAGNA POWER ARx Series Programmable DC-Load | ARx Series
Magna-Power Electronics, Inc.
MPE-ARx-Serie

Power: 6.75 kW 1Ph, Input Voltage: 240, Voltage: up to 1000 V, Current: up to 140 A
Price on request
High power AC/DC electronic load | 1875 W, 18.75 A, 350 V High power AC/DC electronic load | 1875 W,...
GW Instek (Good Will Instruments)
GW-AEL-5002-350-18.75

Power: 1875 W, Voltage: 350 V, Current: 18.75 A
Price on request
High power AC/DC electronic load | 1875 W, 18.75 A, 425 V High power AC/DC electronic load | 1875 W,...
GW Instek (Good Will Instruments)
GW-AEL-5002-425-18.75

Power: 1875 W, Voltage: 425 V, Current: 18.75 A
Price on request
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Useful facts about electronic DC/AC loads or current sinks

Current siks consume power in a precisely controllable manner and therefore simulate a wide variety of electrical consumption to an assembly under test. This allows the reaction of the DUT, i.e. the assembly, to be mapped across the entire power bandwidth. In addition, dynamic load changes can be realized with the help of current sinks.
Current sinks normally convert the absorbed electrical power into heat. Therefore, the devices must be cooled. This is achieved by means of fans or water-cooled components. In some cases, it is also possible to feed the power back into the public grid.
In principle, there are electronic loads for use with DC (Direct Current) or with AC (Alternating Current).

DC current sinks are used for testing current sources such as

  • Solar panels
  • Power supplies
  • Generators
  • LEDs
  • Batteries
  • Digital outputs

AC current sinks are used for the testing of

  • Transformers
  • On-board power supplies
  • UPS (uninterruptible power supplies)
  • Frequency converters
  • Power filters

Easy handling of current sinks by presets CC|CV|CP|CR

Electronic loads are mostly programmable and configurable. They usually have preset constant operating modes for especially easy handling and quick use.

  • Constant current (CC)
  • Constant voltage (CV)
  • Constant power (CP)
  • Constant resistance (CR)

 

To protect the current sinks, protection devices such as over-power, over-current, over-temperature and over-voltage protection are also incorporated. Current sinks, which have evolved from the simplest circuits to complex electronic loads, are now commonly controlled directly by analogue or digital signals. These control devices, such as analogue regulators or digital controllers, are part of the current sinks.

This allows a wide variety of load shapes and load curves to be repeated exactly, making it possible to compare a wide variety of DUTs accurately. All defined values, both the set values and the realized values, are fully displayed and verifiably documented.

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