Indoor single-phase epoxy resin casting current transformer complying with GB/T20840.1/2 and IEC61869-1/2 standards, insulation level 12/42/75kV, rated frequency 50/60Hz, secondary rated current 5A or 1A. Optional primary current ranges:20-400A、500-600A、800A、1000A; accuracy combinations 0.2S/10P15、0.5S/10P15 with rated output:0.2S10VA、0.5S10VA、10P15 15VA. Short-time thermal current 60I₁ₙ, dynamic stable current 120I₁ₙ, net weight 15kg, operating ambient temperature -5℃~+40℃.
Indoor 10kV epoxy cast current transformer for MV switchgear, suitable for metering and protection with dual accuracy windings.
| Paramètre | Spécification | Vérification |
|---|---|---|
| Type de produit | Current Transformer | IEC 61869 / GB/T 20840 |
| Code modèle | LZJC-10G | Marquage de la plaque constructeur |
| Tension primaire | 0.66kV | Essai de tension nominale (IEC 61869-1/3) |
| Tension secondaire | 5A/1A | Vérification du rapport à la fréquence nominale |
| Classe de précision | 0.2/0.5/1.0 | 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 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 insulation level of this CT?
R : The insulation level is 12/42/75kV, meaning 12kV highest voltage for equipment, 42kV power-frequency withstand, 75kV lightning impulse withstand.
Q : What accuracy classes are available?
R : Available accuracy combinations include 0.2S/10P15 and 0.5S/10P15, with rated outputs of 10VA for metering and 15VA for protection.
Q : Can this CT be used outdoors?
R : No, it is designed for indoor use only. For outdoor applications, a suitable enclosure or a different product is required.
Les champs manquants sont marqués [On Request] — jamais inventés. Les lignes de vérification M2/M5/M6 suivent les conventions IEC 61869 / IEEE C57.13.
| Model | Rated primary current I1n (A) | Accuracy classCombined | 0.2(S) | 0.5(S) | 10P10 | 10P15 | Short-time thermal current Ith (kA/S) | Rated dynamic current Idyn (kA) | Weight (kg) |
|---|---|---|---|---|---|---|---|---|---|
| LZJ-10G | 20-400 | 0.2(S)/10P10 0.5(S)/10P10 | 10 | 10 | 15 | — | 60 I1n | 120 I1n | 15 |
| LZJ-10G | 500-600 | 0.2(S)/10P10 0.5(S)/10P10 | 10 | 10 | 15 | — | 60 I1n | 120 I1n | 15 |
| LZJ-10G | 800 | 0.2(S)/10P10 0.5(S)/10P10 | 10 | 10 | 15 | — | 60 I1n | 120 I1n | 15 |
| LZJ-10G | 1000 | 0.2(S)/10P10 0.5(S)/10P10 | 10 | 10 | 15 | — | 60 I1n | 120 I1n | 15 |
| LZJC-10G LZJD-10G | 20-400 | 0.2(S)/10P15 0.5(S)/10P15 | 10 | 10 | — | 15 | 60 I1n | 120 I1n | 15 |
| LZJC-10G LZJD-10G | 500-600 | 0.2(S)/10P15 0.5(S)/10P15 | 10 | 10 | — | 15 | 60 I1n | 120 I1n | 15 |
| LZJC-10G LZJD-10G | 800 | 0.2(S)/10P15 0.5(S)/10P15 | 10 | 10 | — | 15 | 60 I1n | 120 I1n | 15 |
| LZJC-10G LZJD-10G | 1000 | 0.2(S)/10P15 0.5(S)/10P15 | 10 | 10 | — | 15 | 60 I1n | 120 I1n | 15 |
Dessin d'encombrement et de dimensions du LZJC-10G — cliquez sur l'image pour zoomer / afficher l'original.
