Inductance Measurements
LI-Series, The High Current Inductance Analysers with Pulse Voltage Source
Our LI analysers offers the possibility to identify the inductance characteristic of a choke over a wide current range with only one measurement. This method easily allows to verify the inductance and saturation behavior as well as the resistance.
High Power Densitity
Compared to other high current inductance measuring methods, the size and the weight are significantly lower. The advantage of the LI Series is that chokes can be tested which are larger than the device itself. Therefore, it is excellently suitable for mobile use.
Scalable Performance
The LI units are available in three versions. They differ in the available energy and the maximum current, but have the same functions and software.
The right device is always available for your requirements.
3-Phase Choke Testing
Three-phase chokes can, of course, also be tested. This is possible with manual reconnection or automatic switching through our 3-phase extension unit.
Our software ensures the right test sequence and the simple evaluation.
Connectivity and Integration
The device is controlled by our LI software. The communication between the PC and the device can be done via USB or Ethernet. So, you can use the device separately or integrate it into a system. Additionally, it can be integrated into existing safety circuits and can be operated externally. This allows you to extend an existing test field simply without any limitations.
The Software – Clear, Simple and Intuitive
Our Software provides an easy and intuitive handling. You can enter the rated values of the choke and the maximum current. The necessary test voltage is calculated automatically. After the measurement is finished you will see the measurement curves of voltage, current and inductance. The winding resistance is measured too.
You can save the results, open an other measurement as a reference or verificate the results with the aid of limit values. There are many more features. See below for the main features.
Also, the software can generate a protocol from the measurement data. Here is an example:
Main Features
In addition to the simple and intuitive operation, we have implemented a lot of features to make the software better. Here are the main features.
Ready for production environment
If you want to use our Inductance Analysers in a production environment for routine tests, please have a look at our Test Software Suite
The Applications – Your Benefits
Development
The LI series enable easy verification of prototypes. Due to easy and fast measurements and high current capability the LI instruments are the ideal tool during development.
Routine Testing
With the system integration ability and several software and hardware options the LI series allow efficient routine testing.
Maintenance and Replacement
In many railway and industrial applications, high-performance reactors have to be measured, repaired and replaced. The LI series allows accurate characterization and comparisons.
- Identify the complete inductance characteristic, inclusive saturation behavior and winding resistance
- With one single measurement
- Up to 6000 amperes and up to 9000 joules
- Compact Devices
- Measurement of 3-Phase Chokes
| Model | LI1000 | LI4000 | LI6100 |
| Pulse voltage | 10V to 450V | 10V to 450V | 10V to 450V |
| Maximum pulse energy | 1250J | 4000J | 9000J |
| Maximum current | 1000A | 4000A | 6000A |
| Current measurement ranges | 1000A 500A 200A 100A 50A |
4000A 2000A 800A 400A 200A 80A |
6000A 3000A 1200A 600A 300A 120A |
| Resistance measurement ranges | 2000mΩ 200mΩ 20mΩ |
2000mΩ 200mΩ 20mΩ |
2000mΩ 200mΩ 20mΩ |
| Current Measuring Accuracy¹ | ± (0.10% + 0.10%) | ± (0.10% + 0.10%) | ± (0.10% + 0.10%) |
| Voltage Measuring Accuracy¹ | ± (0.10% + 0.10%) | ± (0.10% + 0.10%) | ± (0.10% + 0.10%) |
| Resistance Measuring Accuracy¹ | ± (0.15% + 0.30%) | ± (0.15% + 0.30%) | ± (0.15% + 0.30%) |
| Interfaces | USB and Ethernet | USB and Ethernet | Ethernet |
| Power Supply | 90-260VAC, 50-60Hz | 90-260VAC, 50-60Hz | 100-120VAC / 200-240VAC, 50-60 Hz |
| Dimensions | 449x133x495mm (19″, 3U) | 449x266x495mm (19″, 6U) | 600x1900x400mm (Electrical Enclosure) |
| Weight | 12kg | 25kg | 160kg |
¹Accuracy notation: ± (% of reading + % of range)
Ordering Informations
Our High Current Inductance Analysers are delivered with the following accessoires:
- Test leads for sense and force connections
- USB and/or Ethernet cable
- Mains cable
- Safety circuit plug
- Instruction manual
- Software on USB-stick
- Calibration certificate
Please specify the following order numbers when ordering or requesting:
- Order number for a LI1000: LI1000
- Order number for a LI4000: LI4000
- Order number for a LI6100: LI6100
Available accessories
Warning lamp for LI1000 and LI4000
Order number: ACC-WL1
3-Phase Extension for LI1000
Order number: LI-3PH1
3-Phase Extension for LI4000
Order number: LI-3PH2
3-Phase Extension for LI6100
Order number: LI-3PH3
Kelvin Test Lead Set for LI1000 and LI4000
Order number: LI-KTL400A
Kelvin Test Lead Set for LI1000 and LI4000
Order number: LI-KTL1000A
Kelvin Test Lead Set for LI4000
Order number: LI-KTL4000A
Kelvin Test Lead Set for LI6100
Order number: LI-KTL6000A
We support you and take care of your product
We also help you after buying our products. Whether maintenance, support, repair or calibration, it does not matter, we care about you and your products.