Indoor single-phase epoxy resin casting current transformer complying with GB/T20840.1/2 and IEC61869-1/2 standards; rated insulation level 40.5/95/185kV, rated frequency 50/60Hz, rated secondary current 5A or 1A. Optional primary current covers 20–3150A; accuracy-class rated outputs:10VA(0.2S/0.5S),30VA(0.5),30VA(5P10),20VA(5P15),15VA(5P20); short-time thermal current ranges 4–31.5kA, rated dynamic stable current ranges 10–130kA; product weight:78kg; ambient operating temperature -5℃~+40℃.
Indoor 35kV epoxy cast CT for MV switchgear metering and protection; rated insulation 40.5kV system, power-frequency withstand 95kV, lightning impulse 185kV peak.
| Paramètre | Spécification | Vérification |
|---|---|---|
| Type de produit | Current Transformer | [On Request] |
| Code modèle | LZZQB8-35-G | Marquage de la plaque constructeur |
| Tension primaire | 35kV | Essai de tension nominale (IEC 61869-1/3) |
| Tension secondaire | [On Request] | 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) | [On Request] | 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 | [On Request] | Selon les limites de la fiche technique |
Idéal pour
Non recommandé pour
secondary terminals 1S1/1S2 for metering, 2S1-2S2 for protection (if applicable). 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 : Rated insulation level is 40.5/95/185kV, meaning 40.5kV system voltage, 95kV power-frequency withstand, 185kV lightning impulse withstand.
Q : Can it be used outdoors?
R : No, it is designed for indoor use only due to epoxy resin construction.
Q : What secondary currents are available?
R : Rated secondary current is 5A or 1A, as specified.
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) COSΦ=0.8 (0.2/0.5S) | Accuracy class & rated output (VA) COSΦ=0.8 (0.5) | Accuracy class & rated output (VA) COSΦ=0.8 (5P10) | Accuracy class & rated output (VA) COSΦ=0.8 (5P15) | Accuracy class & rated output (VA) COSΦ=0.8 (5P20) | Short-time thermal current Ith (kA/S) (kA) | Short-time thermal current Ith (kA/S) (s) | Rated dynamic current Idyn (kA) | Weight (kg) |
|---|---|---|---|---|---|---|---|---|---|---|
| 20 | 0.2(S)/0.5(S) | 10 | 30 | 30 | 20 | 15 | 4 | 1 | 10 | 78 |
| 30-40 | 0.2(S)/5P | 10 | 30 | 30 | 20 | 15 | 4 | 2 | 10 | 78 |
| 50 | 0.5(S)/5P | 10 | 30 | 30 | 20 | 15 | 12 | 1 | 30 | 78 |
| 75 | 0.5(S)/5P | 10 | 30 | 30 | 20 | 15 | 16 | 1 | 40 | 78 |
| 100-150 | 0.2(S)/0.5(S)/5P | 10 | 30 | 30 | 20 | 15 | 25 | 1 | 63 | 78 |
| 200-300 | 0.2(S)/5P/5P | 10 | 30 | 30 | 20 | 15 | 31.5 | 1 | 80 | 78 |
| 400-600 | 0.5(S)/5P/5P | 10 | 30 | 30 | 20 | 15 | 31.5 | 2 | 80 | 78 |
| 800-1600 | [On Request] | 10 | 30 | 30 | 20 | 15 | 31.5 | 4 | 130 | 78 |
| 2000-3150 | [On Request] | 10 | 30 | 30 | 20 | 15 | [On Request] | [On Request] | [On Request] | 78 |
Dessin d'encombrement et de dimensions du LZZQB8-35-G — cliquez sur l'image pour zoomer / afficher l'original.
