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: 300-400A、500-1000A、1200-1250A、2000-6000A; multiple accuracy combinations including 0.5S/0.5S、0.2S/10P10、0.5S/10P10、0.2S/10P15、0.5S/10P15、10P15/10P15, corresponding rated output 5VA-50VA. Weight varies by current range: 10–13.5kg 300-1000A, 24kg 1200-1250A, 36kg 2000-6000A; ambient operating temperature -5℃~+40℃.
Indoor 10kV cast-resin current transformer for MV switchgear, metering, and protection.
| Paramètre | Spécification | Vérification |
|---|---|---|
| Type de produit | Current Transformer | [On Request] |
| Code modèle | LMZJ-10Q | 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
secondary terminals 1S1/1S2 (protection winding 2S1-2S2). 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?
R : 12kV system; power-frequency withstand 42kV; lightning impulse withstand 75kV peak.
Q : What secondary currents are available?
R : 5A or 1A.
Q : What accuracy classes are offered?
R : 0.5S/0.5S, 0.2S/10P10, 0.5S/10P10, 0.2S/10P15, 0.5S/10P15, 10P15/10P15.
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 | Rated output & Rated output (VA)COSφ=0.8 (0.2 (S) / 0.5 (S) / 5P10/15 / 5P15/15) | Weight (kg) |
|---|---|---|---|
| 300-400 | 0.5(S)/0.5(S) 0.2(S)/10P10 | 5 / 10 / 15 | 10-13.5 |
| 500-1000 | 0.5(S)/10P10 0.5(S)/10P15 | 10 / 10 / 15 | 10-13.5 |
| 1200-1250 | 0.2(S)/10P15 0.5(S)/10P15 | 20 / 30 / 50 / 30 | 24 |
| 2000-6000 | 0.2(S)/10P15 0.5(S)/10P15 1S/P15/10P15 | 20 / 30 / 50 / 40 | 36 |
Dessin d'encombrement et de dimensions du LMZJ-10Q — cliquez sur l'image pour zoomer / afficher l'original.
