INTEGRATORS FOR ROGOWSKI COILS
LEM Integrators and accessories for Rogowski Coil current sensors
MULTI-OUTPUT DIGITAL ROGOWSKI INTEGRATORS
LEM provides several Rogowski coil integrators to complement its flexible clip-around coils ART and ARU families.
The AI-PMUL Rogowski coil integrator design is based on digital processing to give combined dynamic range, accuracy, and versatility of use. It offers a wide range of output signals both RMS and instantaneous. AI-PMUL can be stacked for multiphase application without spacing.
AI-P1A Rogowski coil signal conditioner provides a 1 A output instantaneous signal to replace conventional current transformer with dynamic extended range.
AI-P1A and AI-PMUL can be stacked up to 3 Integrator modules and use only one power supply for multiphase application without spacing.
Both LEM integrators for Rogowski Coils are DIN rail mounted.
INTEGRATOR AI-PMUL SERIES
Main characteristics & benefits
- Integrator for Rogowski coils
- Signal conditioner of Rogowski coils secondary signal
- Linearity error below 0.1%
- Combined with LEM ART & ARU class 0.5 Rogowski coils, it offers a universal metering and monitoring solution
- DIN Rail mounting
Features
- 12 current ranges selection from 100 to 5000 A
- 6 Rogowski coil sensitivity selection from 22.5 to 120 mV/KA
- 6 possible outputs selection: 4 true RMS outputs: 0-20 mA, 4-20 mA, 0-5 V & 0-10 V and 2 instantaneous voltage outputs: 0-225 mV and 0-333 mV
- Simple configuration through 2 buttons
- Visible bi-colour led indicating the status
- Operating temperature range -25°C to +70°C
- Single supply voltage +24 V
Typical applications
- MV/LV substations: transformer condition monitoring
- Power measurement: current measurement for active power calculation
- Building sub-metering: energy efficiency monitoring, consumption analysis and cost allocation
- Power quality monitoring: electrical loads and distribution system equipment
- Fault Detection, Isolation and Repair (FDIR)
- Remote Terminal Units (RTU)
- Automation
- Smart Grid
SMA coaxial connector for small current measurement is proposed as option.
3 integrators AI-PMUL can be stacked together with an optional connector to share a single power supply.
INTEGRATOR AI-PMUL SERIES DOWNLOAD & TECHNICAL CHARACTERISTICS
| Product | Document | Nominal Value | Op. Temperature | Output current (True RMS) |
Output voltage (True RMS) |
Output voltage (Instantaneous) |
|---|---|---|---|---|---|---|
| AI-PMUL | Datasheet 3D User guide |
100 A – 5000 A | -25 °C / 70 °C | 0-20 mA or 4-20 mA | 0-5 V or 0-10 V | 0-225 mVac or 0-333 mVac |
INTEGRATOR AI-P1A SERIES
Main characteristics & benefits
- Compact design for DIN rail assembly
- High accuracy Class 0.5 (IEC 61869-2)
- Setup by user via Select / Edit buttons
- Clear status indication via bi-color led
- Over-temperature protection function.
Features
- Accuracy Class 0.5 (IEC 61869-2) (1)
- Linearity error ≤ 0.10 %
- Protection degree IP2X
- 35 mm DIN rail mounted
- Push-in terminals
- 1 A instantaneous output signals
- 6 selectable sensitivities depending on Rogowski coil from 22.5 to 120 mV/kA
- 12 selectable ranges from 100 to 5000 A
- Ambient operating temperature: 25 °C to +70 °C.
Typical applications
- MV/LV substations: transformer condition monitoring
- Power measurement: current measurement for active power calculation
- Building sub-metering: energy efficiency monitoring, consumption analysis and cost allocation
- Power quality monitoring: electrical loads and distribution system equipment
- Fault Detection, Isolation and Repair (FDIR)
- Remote Terminal Units (RTU)
- Automation
- Smart Grid
SMA coaxial connector for small current measurement is proposed as option.
Just like AI-PMUL, 3 AI-P1A integrators can be stacked together to share a single power supply.
INTEGRATOR AI-P1A SERIES DOWNLOAD & TECHNICAL CHARACTERISTICS
INTEGRATORS FOR ROGOWSKI COILS – ASK FOR SAMPLES / QUOTATION
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