Epoxy resin cast current transformer dedicated for CGIS inflatable cabinet, compliant with GB/T20840.1, GB/T20840.2, IEC61869-1 and IEC61869-2 standards, multiple current ranges and accuracy classes optional.
LZZB9-35-198K2-CGIS is a dry epoxy resin current transformer for 35kV CGIS gas-insulated switchgear, with primary voltage 10kV and secondary 5A or 1A. It is suitable for metering and protection in indoor gas-insulated switchgear applications.
| Parameter | Specification | Verification |
|---|---|---|
| Product Type | Current Transformer | [On Request] |
| Model Code | LZZB9-35-198K2-CGIS | Factory nameplate marking |
| Primary Voltage | 10kV | Rated voltage test (IEC 61869-1/3) |
| Secondary Voltage | 5A or 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) | 0.72/3kV | Power-frequency & lightning impulse withstand |
| Standards | [On Request] | Certified to listed standards |
| Frequency | 50Hz / 60Hz | Per IEC 61869-1 |
| Environment | [On Request] | Per datasheet limits |
Ideal For
Not Recommended For
For current transformers, connect secondary terminals 1S1 and 1S2 for the main winding; if a protection winding is present, use 2S1-2S2. Never open-circuit the secondary of a CT while energized - hazardous voltage may occur. Ground the secondary winding at one point. Ensure proper shorting before disconnecting the secondary circuit. Follow IEC 61869-2 and GB/T20840.2 for installation and testing.
Compliant with: [On Request]
S_total = ΣS_instrument + I₂² × (ρ × 2L / A)
Q: What is the primary voltage rating of this CT?
A: The primary voltage is 10kV, but it is designed for use in 35kV CGIS switchgear.
Q: What are the secondary output options?
A: The secondary output can be 5A or 1A, depending on the required ratio.
Q: Is this CT suitable for outdoor use?
A: No, it is designed for indoor CGIS gas-insulated switchgear applications.
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 | Accuracy class & rated output (VA) COSφ=0.8 | Accuracy class & rated output (VA) COSφ=0.8 | Accuracy class & rated output (VA) COSφ=0.8 | Accuracy class & rated output (VA) COSφ=0.8 | Short-time thermal current Ith (kA/S) | Rated dynamic current Idyn (kA) | Weight (kg) |
|---|---|---|---|---|---|---|---|---|---|
| 20-50 | 0.2(5)/0.5(5) 0.2(5)/5P 0.5(5)/5P 0.5(5)/5P/5P | 15 | 20 | 25 | 20 | 15 | 150/1n | 375/1n | 62 |
| 75-150 | 0.2(5)/0.5(5) 0.2(5)/5P 0.5(5)/5P 0.5(5)/5P/5P | 15 | 20 | 25 | 20 | 15 | 150/1n | 375/1n | 62 |
| 200 | 0.2(5)/0.5(5) 0.2(5)/5P 0.5(5)/5P 0.5(5)/5P/5P | 15 | 20 | 25 | 20 | 15 | 31.5 | 80 | 62 |
| 300 | 0.2(5)/0.5(5) 0.2(5)/5P 0.5(5)/5P 0.5(5)/5P/5P | 15 | 20 | 25 | 20 | 15 | 45 | 112.5 | 62 |
| 400 | 0.2(5)/0.5(5) 0.2(5)/5P 0.5(5)/5P 0.5(5)/5P/5P | 15 | 20 | 25 | 20 | 15 | 45 | 112.5 | 62 |
| 500 | 0.2(5)/0.5(5) 0.2(5)/5P 0.5(5)/5P 0.5(5)/5P/5P | 15 | 20 | 25 | 20 | 15 | 45 | 112.5 | 62 |
| 600-800 | 0.2(5)/0.5(5) 0.2(5)/5P 0.5(5)/5P 0.5(5)/5P/5P | 20 | 20 | 30 | 25 | 20 | 63 | 130 | 62 |
| 1000-1250 | 0.2(5)/0.5(5) 0.2(5)/5P 0.5(5)/5P 0.5(5)/5P/5P | 20 | 20 | 30 | 25 | 20 | 80 | 160 | 62 |
| 1500-2500 | 0.2(5)/0.5(5) 0.2(5)/5P 0.5(5)/5P 0.5(5)/5P/5P | 20 | 20 | 30 | 25 | 20 | 100 | 150 | 62 |
Dimension & outline drawing of LZZB9-35-198K2-CGIS — click image to zoom / view original.
