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 30–3150A; accuracy-class rated outputs:30VA(0.2S),30VA(0.5S),40/50/60VA(5P10),25/30/40VA(5P15),15/20/30VA(5P20); short-time thermal current 6–31.5kA, rated dynamic stable current 15–100kA; product weight:87kg; ambient operating temperature -5℃~+40℃.
Indoor 35kV class epoxy cast CT for MV switchgear; suitable for protection and metering with 5A/1A secondary.
| Paramètre | Spécification | Vérification |
|---|---|---|
| Type de produit | Current Transformer | [On Request] |
| Code modèle | LZZQB8-35-B | 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 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?
R : The insulation level is 40.5kV system; power-frequency withstand 95kV; lightning impulse withstand 185kV peak.
Q : What are the available secondary currents?
R : Secondary current is 5A or 1A.
Q : What accuracy classes are available?
R : Options include 0.2S, 0.5S, 5P10, 5P15, and 5P20 with various rated outputs.
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 (S) | Accuracy class & rated output (VA) COSφ=0.8 0.5 (S) | 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) | Rated dynamic current Idyn (kA) | Weight (kg) |
|---|---|---|---|---|---|---|---|---|---|
| 30 | 0.2(S)Y0.2(S)/5P 0.2(S)Y0.5(S)/5P 0.5(S)Y0.5(S)/5P 0.2(S)/5P/5P 0.5(S)/5P/5P | 30 | 30 | 40 | 25 | 15 | 6 / 1 | 15 | 87 |
| 50 | 0.2(S)Y0.2(S)/5P 0.2(S)Y0.5(S)/5P 0.5(S)Y0.5(S)/5P 0.2(S)/5P/5P 0.5(S)/5P/5P | 30 | 30 | 40 | 25 | 15 | 12 / 1 | 30 | 87 |
| 100 | 0.2(S)Y0.2(S)/5P 0.2(S)Y0.5(S)/5P 0.5(S)Y0.5(S)/5P 0.2(S)/5P/5P 0.5(S)/5P/5P | 30 | 30 | 40 | 25 | 15 | 25 / 1 | 62.5 | 87 |
| 150 | 0.2(S)Y0.2(S)/5P 0.2(S)Y0.5(S)/5P 0.5(S)Y0.5(S)/5P 0.2(S)/5P/5P 0.5(S)/5P/5P | 30 | 30 | 40 | 25 | 15 | 31.5 / 1 | 80 | 87 |
| 200 | 0.2(S)Y0.2(S)/5P 0.2(S)Y0.5(S)/5P 0.5(S)Y0.5(S)/5P 0.2(S)/5P/5P 0.5(S)/5P/5P | 30 | 30 | 40 | 25 | 15 | 31.5 / 1 | 80 | 87 |
| 300 | 0.2(S)Y0.2(S)/5P 0.2(S)Y0.5(S)/5P 0.5(S)Y0.5(S)/5P 0.2(S)/5P/5P 0.5(S)/5P/5P | 30 | 30 | 40 | 25 | 15 | 31.5 / 1 | 80 | 87 |
| 400 | 0.2(S)Y0.2(S)/5P 0.2(S)Y0.5(S)/5P 0.5(S)Y0.5(S)/5P 0.2(S)/5P/5P 0.5(S)/5P/5P | 30 | 30 | 40 | 25 | 15 | 31.5 / 2 | 80 | 87 |
| 500 | 0.2(S)Y0.2(S)/5P 0.2(S)Y0.5(S)/5P 0.5(S)Y0.5(S)/5P 0.2(S)/5P/5P 0.5(S)/5P/5P | 30 | 30 | 50 | 30 | 20 | 31.5 / 2 | 80 | 87 |
| 600 | 0.2(S)Y0.2(S)/5P 0.2(S)Y0.5(S)/5P 0.5(S)Y0.5(S)/5P 0.2(S)/5P/5P 0.5(S)/5P/5P | 30 | 30 | 50 | 30 | 20 | 31.5 / 3 | 80 | 87 |
| 800 | 0.2(S)Y0.2(S)/5P 0.2(S)Y0.5(S)/5P 0.5(S)Y0.5(S)/5P 0.2(S)/5P/5P 0.5(S)/5P/5P | 30 | 30 | 50 | 30 | 20 | 31.5 / 3 | 80 | 87 |
| 1000/1600 | 0.2(S)Y0.2(S)/5P 0.2(S)Y0.5(S)/5P 0.5(S)Y0.5(S)/5P 0.2(S)/5P/5P 0.5(S)/5P/5P | 30 | 30 | 60 | 40 | 30 | 31.5 / 3 | 80 | 87 |
| 2000-3150 | 0.2(S)Y0.2(S)/5P 0.2(S)Y0.5(S)/5P 0.5(S)Y0.5(S)/5P 0.2(S)/5P/5P 0.5(S)/5P/5P | 30 | 30 | 60 | 40 | 30 | 31.5 / 4 | 100 | 87 |
Dessin d'encombrement et de dimensions du LZZQB8-35-B — cliquez sur l'image pour zoomer / afficher l'original.
