A Low-Voltage Current Transformer (LV CT) operates on the fundamental principle of electromagnetic induction, identical to other current transformers, but is specifically designed for use in low-voltage electrical systems (typically under 1000V). The primary conductor, carrying the current to be measured, passes through the transformer's core. The alternating magnetic field generated by this current induces a proportionally smaller, isolated current in the secondary winding. This scaled-down current is then safely fed to measuring instruments like ammeters or protective relays.
Product Features
1. Compact and Cost-Effective: Designed for lower insulation requirements, LV CTs are generally smaller, lighter, and more economical than their high-voltage counterparts.
2. High Accuracy for Measurement: They provide high accuracy for energy metering and load monitoring in commercial and industrial settings, ensuring reliable billing and system control.
3. Safety and Isolation: Like all CTs, they provide crucial electrical isolation between the primary power circuit and the secondary measurement circuits, protecting personnel and sensitive electronic equipment.
Common Applications
LV CTs are ubiquitous in low-voltage power distribution and control systems. Their primary applications include:
1. Energy Metering: Precisely measuring electricity consumption in residential, commercial, and industrial buildings.
2. Load Monitoring and Control: Monitoring current in circuits for system management and preventing overloads.
3. Motor Control Centers (MCCs): Providing current feedback for motor protection and control functions.
