Instrument Transformers
ARVT — Block Type Voltage Transformer
Cast-resin voltage transformer for metering, measurement and protection functions in medium-voltage networks. Available with and without fuse.
12 / 24 / 36 kV100 VA1.9 Un / 8 h
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The ARVT series covers single-phase voltage transformers for 12, 24 and 36 kV in M (standard) and WF (with built-in fuse) versions. Secondary voltages 100/√3–110/√3–120/√3 V, measuring and protection windings up to 100 VA, open-delta winding for earth fault monitoring.
Technical Specifications
| Parameter | ARVT-M12 | ARVT-M24 | ARVT-M36 |
|---|---|---|---|
| Maximum operating voltage (Um) | 12 kV | 24 kV | 36 kV |
| Test voltages | 28 / 75 kV | 50 / 125 kV | 70 / 170 kV |
| Rated secondary voltage | 100/√3 – 110/√3 – 120/√3 V | ||
| Burden, measuring winding | Up to 100 VA | ||
| Burden, protection winding | Up to 100 VA | ||
| Rated voltage factor (8 h) | 1.9 Un | 1.9 Un | 1.9 Un |
| Rated frequency | 50 / 60 Hz | 50 / 60 Hz | 50 / 60 Hz |
