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 30–2000A; accuracy-class rated outputs:15VA(0.2S),15VA(0.2),15-30VA(0.5),20-50VA(10P10), paiReddish Brown multi-winding output options available; short-time thermal current ranges 63–150kA, rated dynamic stable current ranges 130–375kA; product weight:70kg; ambient operating temperature -5℃~+40℃.
LDJ1-35 is a 35kV indoor epoxy resin cast current transformer, suitable for medium voltage switchgear applications requiring accurate current measurement and protection.
| Paramètre | Spécification | Vérification |
|---|---|---|
| Type de produit | Current Transformer | [On Request] |
| Code modèle | LDJ1-35 | 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 primary in series with the line. 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. Ensure shorting and grounding before disconnecting secondary wiring.
Conforme à : [On Request]
S_total = ΣS_instrument + I₂² × (ρ × 2L / A)
Q : What is the insulation level of LDJ1-35?
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 options are 5A or 1A.
Q : What accuracy classes are available?
R : Accuracy classes include 0.2S, 0.2, 0.5, and 10P10 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 | Rated secondary current | Short-time thermal current I1th (kA/S) | Rated dynamic current Idyn (kA) | Weight (kg) |
|---|---|---|---|---|---|---|
| 30-300 | 0.5/10P | 15 15 20 30 20/20 | 5A or 1A | 150 I1n | 375 I1n | 70 |
| 400 | 0.5/10P | 15 15 20 40 20/20 | 5A or 1A | 63 | 130 | 70 |
| 500 | 0.2/10P | 15 15 20 40 25/25 | 5A or 1A | 63 | 130 | 70 |
| 600-800 | 0.25/10P | 20 20 30 50 30/30 | 5A or 1A | 63 | 130 | 70 |
| 1000-1200 | 0.2/5 | 20 20 30 50 40/40 | 5A or 1A | 63 | 130 | 70 |
| 1500 | 10P/10P | 20 30 50 50 40/40 | 5A or 1A | 80 | 160 | 70 |
| 2000 | — | 20 30 50 50 50/50 | 5A or 1A | 80 | 160 | 70 |
Dessin d'encombrement et de dimensions du LDJ1-35 — cliquez sur l'image pour zoomer / afficher l'original.
