Indoor single-phase epoxy resin casting current transformer complying with GB/T20840.1, GB/T20840.2, IEC61869-1 and IEC61869-2 standards, applicable for CGIS related scenarios with complete accuracy grades.
Indoor epoxy resin CT for 10kV systems, suitable for CGIS switchgear with metering and protection applications.
| Paramètre | Spécification | Vérification |
|---|---|---|
| Type de produit | Current Transformer | [On Request] |
| Code modèle | LZZBJ18-35G3-175-CGIS | 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 | [On Request] | 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) | 0.72/3kV | Tenue à fréquence industrielle et au choc de foudre |
| Normes | [On Request] | Certifié selon les normes listées |
| Fréquence | 50Hz / 60Hz | Selon IEC 61869-1 |
| Environnement | [On Request] | Selon les limites de la fiche technique |
Idéal pour
Non recommandé pour
Connect primary terminals P1/P2 in series with the line. Secondary terminals are 1S1/1S2 for metering winding, and 2S1/2S2 for protection winding if applicable. Never open-circuit the secondary of a CT while energized - hazardous voltage. Ground the secondary circuit at one point only. Follow IEC 61869-2 terminal markings.
Conforme à : [On Request]
S_total = ΣS_instrument + I₂² × (ρ × 2L / A)
Q : What is the insulation level of this CT?
R : The insulation level is 0.72/3kV, meaning 0.72kV system voltage and 3kV power-frequency withstand voltage.
Q : Can this CT be used for outdoor applications?
R : No, it is designed for indoor use only, typically in CGIS switchgear.
Q : What accuracy classes are available?
R : The CT offers multiple accuracy combinations, including metering classes (e.g., 0.2S, 0.5S) and protection classes (e.g., 5P, 10P).
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 I1n (A) | Accuracy classCombined | Accuracy class & rated output (VA) 2COSφ=0.5 (0.2/0.5S) | Accuracy class & rated output (VA) 2COSφ=0.5 (0.5) | Accuracy class & rated output (VA) 2COSφ=0.5 (5P10) | Accuracy class & rated output (VA) 2COSφ=0.5 (5P15) | Short-time thermal current Ith (kA/S) | Rated dynamic current Idyn (kA) | Weight (kg) |
|---|---|---|---|---|---|---|---|---|
| 20-150 | 0.2(5)/0.5(5) | 10 | 15 | 15 | 10 | 100 I1n | 250 I1n | 30 |
| 200 | 0.2(5)/5P 0.5(5)/5P | 10 | 15 | 15 | 10 | 25 | 63 | 30 |
| 300 | 0.2(5)/5P 0.5(5)/5P | 10 | 15 | 15 | 10 | 31.5 | 80 | 30 |
| 400-600 | 0.2(5)/5P 0.5(5)/5P | 10 | 15 | 15 | 10 | 31.5/2 | 80 | 30 |
| 800-1600 | 0.2(5)/5P 0.5(5)/5P | 10 | 15 | 15 | 10 | 31.5/4 | 80 | 30 |
| 2000-2500 | — | 10 | 15 | 15 | 10 | 31.5/4 | 80 | 30 |
Dessin d'encombrement et de dimensions du LZZBJ18-35G3-175-CGIS — cliquez sur l'image pour zoomer / afficher l'original.
