Indoor single-phase square bushing-type current transformer matched for 10kV ring main units, complying with GB/T20840.1/2 and IEC61869-1/2 standards.
LZFT-10 is a 35kV indoor current transformer for 10kV ring main units, offering high precision and dry epoxy insulation. Suitable for metering and protection in RMU applications.
| Parameter | Specification | Verification |
|---|---|---|
| Product Type | Current Transformer | [On Request] |
| Model Code | LZFT-10 | Factory nameplate marking |
| Primary Voltage | 35kV | Rated voltage test (IEC 61869-1/3) |
| Secondary Voltage | [On Request] | Ratio check at rated frequency |
| Accuracy Class | [On Request] | Accuracy test (IEC 61869-2 / IEEE C57.13) |
| Rated Burden | [On Request] | Burden test at rated VA |
| Insulation Type | Dry Epoxy Resin | Dielectric tests per standard |
| Insulation Level (BIL) | [On Request] | Power-frequency & lightning impulse withstand |
| Standards | [On Request] | Certified to listed standards |
| Frequency | 50/60Hz | Per IEC 61869-1 |
| Environment | [On Request] | Per datasheet limits |
Ideal For
Not Recommended For
For current transformers, observe polarity: primary P1/P2, secondary S1/S2 (protection winding 2S1-2S2). 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.
Compliant with: [On Request]
S_total = ΣS_instrument + I₂² × (ρ × 2L / A)
Q: What is the primary voltage rating of the LZFT-10?
A: The primary voltage is 35kV, but it is designed for 10kV ring main units.
Q: Is the LZFT-10 suitable for outdoor use?
A: No, it is an indoor type with dry epoxy insulation, intended for indoor RMU installations.
Q: What standards does the LZFT-10 comply with?
A: It complies with GB/T20840.1/2 and IEC61869-1/2 standards.
Missing fields are marked [On Request] — never fabricated. M2/M5/M6 verification rows follow IEC 61869 / IEEE C57.13 conventions.
| Parameter | Value |
|---|---|
| Product performance complies with standards | GB/T20840.1, 2 and IEC61869-1, 2 |
| Rated insulation level | 0.72/3kV |
| Rated frequency | 50Hz or 60Hz |
| Rated secondary current | 5A or 1A |
| Ambient temperature | -5℃~+40℃ |
Dimension & outline drawing of LZFT-10 — click image to zoom / view original.
