Indoor single-phase cable-fixed through-type self-powered current transformer for passive microcomputer integrated protection devices. The built-in power winding generates electric energy via primary current excitation and supplies startup power when primary current exceeds 10% of rated primary current, power factor COSφ=0.8.
Indoor self-powered CT for cable-fixed installations, suited for passive protection systems in RMU applications.
| Paramètre | Spécification | Vérification |
|---|---|---|
| Type de produit | Current Transformer | [On Request] |
| Code modèle | LDZC-10PU | Marquage de la plaque constructeur |
| Tension primaire | 20kV | Essai de tension nominale (IEC 61869-1/3) |
| Tension secondaire | [On Request] | Vérification du rapport à la fréquence nominale |
| Classe de précision | 0.2/0.5/3P(6P) | Essai de précision (IEC 61869-2 / IEEE C57.13) |
| Charge nominale | 30VA(0.2),40VA(0.5),100VA(3P) | 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 | 50Hz/60Hz | Selon IEC 61869-1 |
| Environnement | [On Request] | Selon les limites de la fiche technique |
Idéal pour
Non recommandé pour
For current transformers, never open-circuit the secondary while energized—hazardous voltage may occur. Standard terminal markings: 1S1/1S2 for main secondary, 2S1/2S2 for protection winding. Ground the secondary winding at one point. Ensure power winding connections are correct for self-powering functionality.
Conforme à : [On Request]
S_total = ΣS_instrument + I₂² × (ρ × 2L / A)
Q : What is the primary voltage rating?
R : The primary voltage is 20kV.
Q : What accuracy classes are available?
R : Accuracy classes are 0.2/0.5/3P(6P) with rated burdens 30VA, 40VA, and 100VA respectively.
Q : How does the self-powered feature work?
R : The built-in power winding generates energy from primary current when it exceeds 10% of rated primary current, with power factor COSφ=0.8.
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 class & rated output (VA) COSΦ=0.8 Protection winding10P10 | Accuracy class & rated output (VA) COSΦ=0.8 Power supply winding | Dimensions Φd/ΦD/H |
|---|---|---|---|---|
| LDZC1240-10PU | 50/5 | 1.5 | 5 | 40/125/130 |
| LDZC1240-10PU | 75/5 | 2.5 | 5 | 40/125/130 |
| LDZC1240-10PU | 100/5 | 3.75 | 5 | 40/125/130 |
| LDZC1365-10PU | 200/5 | 3.75 | 5 | 65/130/110 |
| LDZC1365-10PU | 300/5 | 5 | 5 | 65/130/110 |
| LDZC1150-10PU | 400/5 | 5 | 5 | 50/110/100 |
| LDZC1150-10PU | 600/5 | 7.5 | 5 | 50/110/100 |
Dessin d'encombrement et de dimensions du LDZC-10PU — cliquez sur l'image pour zoomer / afficher l'original.
