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:1000-1500A、2000-3000A、4000-6000A; accuracy combinations including 0.2S/0.2S、0.2S/0.5S、0.2S/10P15/10P15、0.5S/10P15/10P15, rated output values 15VA/20VA/30VA corresponding to different accuracy grades, net weight 45kg, ambient operating temperature -5℃~+40℃.
Indoor 10kV cast-resin current transformer for medium-voltage switchgear, suitable for metering and protection in 12kV systems.
| Paramètre | Spécification | Vérification |
|---|---|---|
| Type de produit | Current Transformer | [On Request] |
| Code modèle | LMZB3-10G | Marquage de la plaque constructeur |
| Tension primaire | 10kV | Essai de tension nominale (IEC 61869-1/3) |
| Tension secondaire | 5A/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) | 12/42/75kV | Tenue à fréquence industrielle et au choc de foudre |
| Normes | [On Request] | Certifié selon les normes listées |
| Fréquence | 50/60Hz | Selon IEC 61869-1 |
| Environnement | Ambient: -5℃~+40℃ | Selon les limites de la fiche technique |
Idéal pour
Non recommandé pour
Connect primary through the window. Secondary terminals: 1S1/1S2 for metering, 2S1/2S2 for protection. Never open-circuit the secondary of a CT while energized - hazardous voltage. Ground the secondary winding at one point. 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 : 12kV system; power-frequency withstand 42kV; lightning impulse withstand 75kV peak.
Q : Can it be used outdoors?
R : No, it is designed for indoor use only.
Q : What secondary currents are available?
R : 5A or 1A.
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) | 10P15 | Weight (kg) |
|---|---|---|---|---|---|---|
| LMZB3-10(Q) | 1000-1200 | 0.2(S)/0.5(S) | 15 | 15 | 15 | 30 |
| LMZB3-10(Q) | 1500 | 0.2(S)/0.5(S) | 20 | 20 | 20 | 30 |
| LMZB3-10(Q) | 2000-6000 | 0.2(S)/0.5(S) 0.5(S)/10P15 10P15/10P15 | 30 | 30 | 30 | 30 |
| LMZB3-10G | 1000-1500 | 0.2(S)/0.5(S) | 15 | 15 | 15 | 45 |
| LMZB3-10G | 2000-3000 | 0.2(S)/0.5(S) | 20 | 20 | 20 | 45 |
| LMZB3-10G | 4000-6000 | 0.2(S)/10P15 0.5(S)/10P15 0.5(S)/10P15/10P15 | 30 | 30 | 30 | 45 |
Dessin d'encombrement et de dimensions du LMZB3-10G — cliquez sur l'image pour zoomer / afficher l'original.
