LV100-2000/SP11,LV 100-2000/SP11

Product Details: LV100-2000/SP11 High-Precision Closed-Loop Voltage Sensor

LV100-2000/SP11 Product Overview

The LV100-2000/SP11 is a high-precision closed-loop Hall-effect voltage sensor from LEM (Switzerland). Designed for measuring DC, AC, and pulsed voltages in industrial, renewable energy, and power electronics systems, this sensor uses closed-loop (compensated) Hall technology and provides complete electrical isolation between primary and secondary circuits. It is ideal for isolated voltage measurement in harsh industrial environments.

Compared with traditional measurement solutions, the LV100-2000/SP11 offers extremely high linearity, very low temperature drift, excellent immunity to external interference, and no insertion loss. It is the perfect choice for variable frequency drives, photovoltaic inverters, rail transit traction systems, energy storage systems, and high-end power supplies.

LV100-2000/SP11 Key Technical Parameters

LV100-2000/SP11 Core Advantages

1. Ultra-high safety isolation level
Rated for 6kV AC / 50Hz / 1 minute isolation voltage, the primary and secondary circuits are fully galvanically isolated. This makes the sensor ideal for indirect measurement in systems up to 10kV or higher, ensuring the safety of both equipment and operators.

2. Closed-loop Hall technology – precise and reliable
Using closed-loop (compensated) Hall technology, this sensor delivers excellent linearity and minimal zero drift. Built-in automatic temperature compensation (±0.01%/°C) ensures high bidirectional measurement accuracy across the full temperature range.

3. Wide bandwidth for complex operating conditions
Supports DC to 20kHz bandwidth (-3dB). Whether measuring DC steady-state voltages, 50/60Hz power-frequency AC, or high-frequency harmonics and pulsed voltages, the sensor tracks them accurately – ideal for precision variable frequency drives and power quality analysis.

4. Exceptional immunity to interference
Built-in EMC filter, compliant with EN 61000-6-2/4 standards. The double-shielded primary/secondary structure ensures stable and accurate output signals even in harsh electromagnetic interference environments, making it reliable for demanding applications.

5. Compact modular design, flexible installation
Black flame-retardant plastic housing, UL94 V-0 rated. Supports screw terminal connections and DIN-rail mounting. High-voltage conductor spacing ≥10mm (meets creepage distance requirements), greatly simplifying equipment integration.

LV100-2000/SP11 Typical Applications

Thanks to its high accuracy, high isolation, and wide application range, the LV100-2000/SP11 is widely used in the following fields:

Photovoltaic and wind power (renewable energy) – 1500V DC bus voltage monitoring; supports inverter system design for 2000V-class IGBT solutions; also suitable for micro-turbines, wind, and solar power generation.

Industrial drives and servo drives – DC bus voltage protection in variable frequency drives, brake unit voltage monitoring, and precision voltage measurement in servo motor drives.

Rail transit – 3000V DC insulation monitoring in traction systems, wayside equipment online condition monitoring.

Energy storage systems and battery management – Battery stack voltage acquisition, high-voltage side real-time monitoring in energy storage systems.

Uninterruptible power supplies (UPS) and switch-mode power supplies – DC bus monitoring in UPS, battery charge/discharge control, output voltage monitoring in switch-mode power supplies – ensuring emergency power and critical load continuity.

High-voltage power supply monitoring – Precision voltage feedback for X-ray generators, electrostatic converters, and other high-voltage equipment.