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: 300-400A、500-1000A、1200-1250A、2000-6000A; multiple accuracy combinations including 0.5S/0.5S、0.2S/10P10、0.5S/10P10、0.2S/10P15、0.5S/10P15、10P15/10P15, corresponding rated output 5VA-50VA. Weight varies by current range: 10–13.5kg 300-1000A, 24kg 1200-1250A, 36kg 2000-6000A; ambient operating temperature -5℃~+40℃.
Indoor 10kV cast-resin current transformer for MV switchgear, metering, and protection.
| Parameter | Specification | Verification |
|---|---|---|
| Product Type | Current Transformer | [On Request] |
| Model Code | LMZJ-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 (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 insulation level?
A: 12kV system; power-frequency withstand 42kV; lightning impulse withstand 75kV peak.
Q: What secondary currents are available?
A: 5A or 1A.
Q: What accuracy classes are offered?
A: 0.5S/0.5S, 0.2S/10P10, 0.5S/10P10, 0.2S/10P15, 0.5S/10P15, 10P15/10P15.
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 | Rated output & Rated output (VA)COSφ=0.8 (0.2 (S) / 0.5 (S) / 5P10/15 / 5P15/15) | Weight (kg) |
|---|---|---|---|
| 300-400 | 0.5(S)/0.5(S) 0.2(S)/10P10 | 5 / 10 / 15 | 10-13.5 |
| 500-1000 | 0.5(S)/10P10 0.5(S)/10P15 | 10 / 10 / 15 | 10-13.5 |
| 1200-1250 | 0.2(S)/10P15 0.5(S)/10P15 | 20 / 30 / 50 / 30 | 24 |
| 2000-6000 | 0.2(S)/10P15 0.5(S)/10P15 1S/P15/10P15 | 20 / 30 / 50 / 40 | 36 |
Dimension & outline drawing of LMZJ-10Q — click image to zoom / view original.
