Technical specifications
3-ЗНОЛП-ADL-12kV
| Parameter name | Parameter value |
|---|---|
| Transformer type | 3-ЗНОЛП-ADL-12kV |
| Configuration | Three-phase group of three single-phase earthed voltage transformers |
| Network voltage class | 10 kV |
| Maximum operating voltage | 12 kV |
| Rated frequency | 50 Hz |
| Rated primary winding voltage | 10000/√3 V |
| Rated primary voltage options | 10000/√3; 10500/√3; 11000/√3 V |
| Rated main secondary winding voltage | 100/√3 V |
| Rated additional secondary winding voltage | 100/3 V |
| Main secondary winding accuracy classes | 0,2; 0,5; 1,0; 3,0 |
| Additional secondary winding accuracy classes | 3 / 3P |
| Rated main secondary winding burden, class 0,2 | 50 VA |
| Rated main secondary winding burden, class 0,5 | 75 VA |
| Rated main secondary winding burden, class 1,0 | 150 VA |
| Rated main secondary winding burden, class 3,0 | 300 VA |
| Rated additional secondary winding burden | 300 VA |
| Limiting output outside the accuracy class | 630 VA |
| Power-frequency test voltage | 42 kV, 1 min |
| Lightning impulse test voltage | 75 kV |
| Insulation type | Cast epoxy insulation |
| Installation | Indoor installation |
| Climatic version | УХЛ2 |
| Primary winding connection | Star with an earthed neutral |
| Main secondary winding connection | Star |
| Additional secondary winding connection | Open delta |
| Number of transformers in the group | 3 units |
| Application | Voltage measurement, commercial and technical electricity metering, relay protection, automation and insulation monitoring |