10kV indoor epoxy resin cast current transformer specially designed for grid energy metering. Dual windings support 0.2S high-precision metering and protection. Rated output 10-15VA, primary current range 20A to 2000A. Compliant with IEC 61869 and GB/T 20840 standards. Ultra-low partial discharge design ensures metering accuracy. Vacuum epoxy casting process, moisture and salt-spray resistant. Suitable for State Grid metering applications, customizable ratio.
LJZN1-10 is a 10kV indoor epoxy cast current transformer with 0.2S accuracy, ideal for high-precision energy metering in State Grid applications.
| Paramètre | Spécification | Vérification |
|---|---|---|
| Type de produit | Current Transformer | IEC 61869, GB/T 20840 |
| Code modèle | LJZN1-10 | Marquage de la plaque constructeur |
| Tension primaire | 10kV | Essai de tension nominale (IEC 61869-1/3) |
| Tension secondaire | 5A or 1A | Vérification du rapport à la fréquence nominale |
| Classe de précision | 0.2S metering class | Essai de précision (IEC 61869-2 / IEEE C57.13) |
| Charge nominale | 10-15VA | Essai de charge à la puissance VA nominale |
| Type d'isolement | Dry Epoxy Resin | Essais diélectriques selon la norme |
| Niveau d'isolement (BIL) | [On Request] | Tenue à fréquence industrielle et au choc de foudre |
| Normes | IEC 61869, GB/T 20840 | Certifié selon les normes listées |
| Fréquence | 50/60Hz | Selon IEC 61869-1 |
| Environnement | Indoor epoxy resin cast | Selon les limites de la fiche technique |
Idéal pour
Non recommandé pour
connect primary in series with the line. Secondary terminals: 1S1/1S2 for metering winding, 2S1/2S2 for protection winding. Never open-circuit the secondary of a CT while energized - hazardous voltage. Ground the secondary winding at one point. Follow IEC 61869 terminal markings.
Conforme à : IEC 61869, GB/T 20840
S_total = ΣS_instrument + I₂² × (ρ × 2L / A)
Q : What is the accuracy class of LJZN1-10?
R : 0.2S metering class.
Q : What is the primary current range?
R : 20A to 2000A.
Q : What standards does it comply with?
R : IEC 61869 and GB/T 20840.
Les champs manquants sont marqués [On Request] — jamais inventés. Les lignes de vérification M2/M5/M6 suivent les conventions IEC 61869 / IEEE C57.13.
| Voltage class (kV) | Rated primary current (A) | Accuracy classCombined | Rated output (VA) | Rated Secondary thermal limit output (VA) | Rated dynamic current (kA) |
|---|---|---|---|---|---|
| 10, 20 | 20 | 0.2S | 10 | 5 | 2 12.5 |
| 10, 20 | 30 | 0.2S | 10 | 5 | 2 20 |
| 10, 20 | 40 | 0.2S | 10 | 5 | 2 20 |
| 10, 20 | 50 | 0.2S | 10 | 5 | 2 40 |
| 10, 20 | 75 | 0.2S | 10 | 5 | 2 40 |
| 10, 20 | 100-200 | 0.2S | 10 | 5 | 20 65 |
| 10, 20 | 300-500 | 0.2S | 10 | 5 | 25 4 63 |
| 10, 20 | 600-800 | 0.2S | 10 | 5 | 31.5 4 80 |
| 10, 20 | 1000-2000 | 0.2S | 10 | 5 | 40 4 100 |
| 10, 20 | 50 | 0.2S | 15 | 5 | 8 0 |
| 10, 20 | 100 | 0.2S | 15 | 5 | 16 0 |
| 10, 20 | 150-200 | 0.2S | 15 | 5 | 31.5 4 80 |
| 10, 20 | 300-500 | 0.2S | 15 | 5 | 25 4 63 |
| 10, 20 | 600-800 | 0.2S | 15 | 5 | 31.5 4 80 |
Dessin d'encombrement et de dimensions du LJZN1-10 — cliquez sur l'image pour zoomer / afficher l'original.
