Indoor single-phase epoxy resin casting current transformer complying with GB/T20840.1/2 and IEC61869-1/2 standards, insulation level 12/42/75kV, rated frequency 50/60Hz, secondary rated current 5A or 1A. Optional primary current ranges:5-150A、200-300A、400-500A、600-1000A、1250-1500A; accuracy combination 0.2S/10P10 & 0.5/10P10, rated output:0.2S 10VA, 0.5 10VA, 10P10 15VA. Corresponding short-time thermal current and dynamic stable current vary by current grade, net weight 21kg, ambient operating temperature -5℃~+40℃.
Indoor 10kV epoxy cast CT for MV switchgear; suitable for metering and protection up to 1500A.
| Parameter | Specification | Verification |
|---|---|---|
| Product Type | Current Transformer | [On Request] |
| Model Code | LFZJ9-10Q | Factory nameplate marking |
| Primary Voltage | 10kV | Rated voltage test (IEC 61869-1/3) |
| Secondary Voltage | 5A/1A | 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) | 12/42/75kV | Power-frequency & lightning impulse withstand |
| Standards | [On Request] | Certified to listed standards |
| Frequency | 50/60Hz | Per IEC 61869-1 |
| Environment | Ambient: -5℃~+40℃ | Per datasheet limits |
Ideal For
Not Recommended For
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 conventions.
Compliant with: [On Request]
S_total = ΣS_instrument + I₂² × (ρ × 2L / A)
Q: What are the available primary current ranges?
A: Optional ranges: 5-150A, 200-300A, 400-500A, 600-1000A, 1250-1500A.
Q: What accuracy combinations are offered?
A: 0.2S/10P10 and 0.5/10P10.
Q: What is the insulation level?
A: 12kV system; power-frequency withstand 42kV; lightning impulse withstand 75kV peak.
Missing fields are marked [On Request] — never fabricated. M2/M5/M6 verification rows follow IEC 61869 / IEEE C57.13 conventions.
| 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 | Accuracy class & rated output (VA) COSΦ=0.8 10P10 | Short-time thermal current Ith (kA/S) | Rated dynamic current Idyn (kA) | Weight (kg) |
|---|---|---|---|---|---|---|---|
| 5-150 | 0.2(S)/10P10 0.5/10P10 | 10 | 10 | 15 | 150 I1n | 375 I1n | 21 |
| 200-300 | 0.2(S)/10P10 0.5/10P10 | 10 | 10 | 15 | 31.5 | 80 | 21 |
| 400-500 | 0.2(S)/10P10 0.5/10P10 | 10 | 10 | 15 | 45 | 100 | 21 |
| 600-1000 | 0.2(S)/10P10 0.5/10P10 | 10 | 10 | 15 | 63 | 130 | 21 |
| 1250-1500 | 0.2(S)/10P10 0.5/10P10 | 10 | 10 | 15 | 80 | 160 | 21 |
Dimension & outline drawing of LFZJ9-10Q — click image to zoom / view original.
