Indoor single-phase open-type current transformer complying with GB/T20840.1/2 and IEC61869-1/2 standards; rated insulation level 0.72/3kV, rated frequency 50Hz/60Hz, rated secondary current 5A or 1A, operating ambient temperature -5℃~+40℃, matched with 10kV ring main unit.
LMZK-10 is a 10kV indoor open-core current transformer for ring main units, offering accuracy 0.2/3P(6P) to 1.0/3P(6P) and rated burden up to 120VA. It suits protection and metering in indoor RMU applications.
| Paramètre | Spécification | Vérification |
|---|---|---|
| Type de produit | Current Transformer | [On Request] |
| Code modèle | LMZK-10 | 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 | 0.2/3P(6P)、0.5/3P(6P)、1.0/3P(6P) | Essai de précision (IEC 61869-2 / IEEE C57.13) |
| Charge nominale | 20VA(0.2),75VA(0.5),120VA(1.0),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) | 24/65/125kV | 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
connect primary through the open core; secondary terminals are 1S1/1S2 for metering, and 2S1/2S2 for protection if dual-winding. 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 LMZK-10?
R : The insulation level is 24/65/125kV: 24kV highest voltage for equipment, 65kV power-frequency withstand, 125kV lightning impulse withstand.
Q : Can LMZK-10 be used outdoors?
R : No, it is designed for indoor use. Outdoor use requires a weatherproof enclosure or special order.
Q : What are the available accuracy classes?
R : Accuracy classes include 0.2/3P(6P), 0.5/3P(6P), and 1.0/3P(6P), suitable for metering and protection.
Les champs manquants sont marqués [On Request] — jamais inventés. Les lignes de vérification M2/M5/M6 suivent les conventions IEC 61869 / IEEE C57.13.
| Parameter | Value |
|---|---|
| Product performance complies with standards | GB/T20840.1, 2 and IEC61869-1, 2 |
| Rated insulation level | 7.2/30/75kV |
| Rated frequency | 50Hz or 60Hz |
| Rated secondary current | 5A or 1A |
| Ambient temperature | -5℃~+40℃ |
Dessin d'encombrement et de dimensions du LMZK-10 — cliquez sur l'image pour zoomer / afficher l'original.
