Indoor single-phase epoxy resin casting CT, compliant with GB/T20840.1/2 & IEC61869-1/2, insulation level 12/42/75kV, 50/60Hz, secondary current 5A/1A. Optional primary current ranges:20-200A、300A、400A、500-600A、800-1000A、1200-3150A; multiple accuracy combinations of metering and protection grades, matched thermal/dynamic withstand parameters for each range, net weight 62kg, operating temperature -5℃~+40℃.
Indoor epoxy cast CT for 12kV systems, suitable for metering and protection in MV switchgear.
| Paramètre | Spécification | Vérification |
|---|---|---|
| Type de produit | Current Transformer | IEC 61869 / GB/T 20840 |
| Code modèle | LZZBJ9-12-195b-4s | Marquage de la plaque constructeur |
| Tension primaire | 0.5kV | Essai de tension nominale (IEC 61869-1/3) |
| Tension secondaire | [On Request] | Vérification du rapport à la fréquence nominale |
| Classe de précision | 0.5/1.0/3.0 | Essai de précision (IEC 61869-2 / IEEE C57.13) |
| Charge nominale | [On Request] | 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 | [On Request] | Selon les limites de la fiche technique |
Idéal pour
Non recommandé pour
Connect primary through the bushing. Secondary terminals: 1S1 and 1S2 for metering, 2S1 and 2S2 for protection. Never open-circuit the secondary while energized - hazardous voltage. Ground the secondary winding at one point. Follow IEC 61869-2 terminal markings.
Conforme à : IEC 61869 / GB/T 20840
S_total = ΣS_instrument + I₂² × (ρ × 2L / A)
Q : What is the insulation level of this CT?
R : The insulation level is 12/42/75kV, meaning 12kV system voltage, 42kV power-frequency withstand, and 75kV lightning impulse withstand.
Q : What accuracy classes are available?
R : Accuracy classes include 0.5, 1.0, and 3.0, suitable for metering and protection.
Q : Can this CT be used outdoors?
R : No, it is designed for indoor use only due to its epoxy casting and indoor construction.
Les champs manquants sont marqués [On Request] — jamais inventés. Les lignes de vérification M2/M5/M6 suivent les conventions IEC 61869 / IEEE C57.13.
| Rated primary current (A) | Accuracy classCombined | Accuracy class & rated output (VA) COSφ=0.8 | Short-time thermal current (kA/S) | Rated dynamic current (kA) | Weight (kg) |
|---|---|---|---|---|---|
| 200-200 | 0.2(5) 0.2(5) 5P/5P 5P/5P | 20 20 25 20 15 | 150 15 | 150 375 | 82 |
| 300 | 0.2(5) 0.2(5) 5P/5P 5P/5P | 20 20 25 20 15 | 31.5 45 | 80 112.5 | 82 |
| 400 | 0.2(5) 0.2(5) 5P/5P 5P/5P | 20 20 25 20 15 | 45 63 | 112.5 130 | 82 |
| 500-600 | 0.2(5) 0.2(5) 5P/5P 5P/5P | 20 20 25 20 15 | 63 80 | 130 160 | 82 |
| 800-1000 | 0.2(5) 0.2(5) 5P/5P 5P/5P | 30 30 40 30 20 | 80 100 | 160 200 | 82 |
| 1200-3150 | 0.2(5) 0.2(5) 5P/5P 5P/5P | 30 30 40 30 20 | 100 | 160 | 82 |
Dessin d'encombrement et de dimensions du LZZBJ9-12-195b-4s — cliquez sur l'image pour zoomer / afficher l'original.
