LPVT AIS
LPVT AIS: Low Power Voltage Transformer for Air-Insulated Switchgear
Support-type LPVT for AIS busbars, available for 36 kV, 24 kV, and 12 kV systems.
About this product
The LPVT AIS is a support-type low power voltage transformer designed for installation on exposed busbars in air-insulated switchgear (AIS) substations. Available for 36 kV, 24 kV, and 12 kV systems, it delivers a calibrated low-energy output signal to voltage amplifiers, IEDs, power quality analyzers, and energy meters, eliminating the burden and safety limitations of conventional VTs. Compliant with IEC 61869-1 (general requirements for instrument transformers) and IEC 61869-11 (low power passive voltage transformers). IEC 61869-6, though now superseded, established the measurement principles this product family builds upon.
Technical Specifications
| Voltage sensor type | Support-type LPVT |
| Installation | AIS busbar (open busbar) |
| Connector interface | Busbar-mounted |
| Rated voltages available | 12, 24 and 36 kV |
| Output signal | 3.25 V or 100 V |
| Accuracy class | Class 0.2 / 0.5 / 1.0 |
| Load impedance | 200 kΩ / 350 pF, 2 MΩ / 50 pF, 47 MΩ / 100 pF |
| Power quality compatibility | 50th harmonic compatible |
| Standards | IEC 61869-1, IEC 61869-11 |
| Downstream compatibility | Voltage amplifiers, IEDs, power quality analyzers, energy meters |
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