Audited Supplier
LB series of outdoor A.C. oil-insulated current transformer (CT) is suitable for power system of rated system voltage from 35kV to 220KV, which is mainly used for measuring curent, power and energy metering, simultaneously to the relay protection device and automatic control device provide current signal.
Structure: Full sealed structure with capacitance-graded oil impregnated paper and Metal Expander
Location: indoor or outdoor
Ambient temperature:-40 to +45 centigrade (Freezing field can meet -45 centigrade)
Wind load: not exceed 35 m/s
Altitude: not exceed 3000m
Icing thickness: not exceed 10mm
Seismic strength: 8
Pollution Grade : 3 or 4
Note: If the service conditions beyonds thc above provisions, pleasc contact us and we can solve as quick as possible.
| Transformer model | LB-220W2 | LBT-220W2 (W3) | LB-132W2 | LB-110GYW2 | LB-110W2 (W3) | LBR-110W2 (W3) | LB-123W2 | LB-66W3 | LB-35W2 |
| Highest system voltage (KV) | 252 | 252 | 145 | 126 | 126 | 126 | 126 | 126 | 40.5 |
| Rated frequency (Hz) | 50 | 50 | 50 | 50 | 50 | 50 | 50 | 50 | 50 |
| Power freguency withstand voltage (KV) | 460 | 460 | 275 | 230 | 230 | 230 | 230 | 160 | 95 |
| BIL, 1.2/50μs full ware (KV) | 1050 | 1050 | 650 | 550 | 550 | 550 | 550 | 350 | 185 |
| Choppcd test (KV) | 1208 | 1208 | 748 | 633 | 633 | 633 | 633 | 403 | 213 |
| Flashover distance (mm) | ≥2150 | 2150 | 1440 | 1440 | 1220 | 1220 | 1220 | 1220 | 350 |
| Creepage distance (mm) | ≥6300 (7812) | ≥6300 (7812) | ≥3150 | ≥3150 | ≥3150(3906) | ≥3150(3906) | ≥3150(3906) | ≥1813(2248) | ≥1015 |
| Rated primary current (A) | 2500 | 2500 | 2500 | 2500 | 2500 | 2500 | 2500 | 2500 | 2000 |
| Rated secondary current (A) | 1;5 | 1;5 | 1;5 | 1;5 | 1;5 | 1;5 | 1;5 | 1;5 | 1;5 |
| Accuracy class (Upon request) | 0.2S; 0.5; 5P; 10P | 0.2S; 0.5; 5P; 10P; TPY | 0.2S; 0.5; 5P; 10P | 0.2S; 0.5; 5P; 10P | 0.2S; 0.5; 5P; 10P | 0.2S; 0.5; 5P; 10P | 0.2S; 0.5; 5P; 10P | 0.2S; 0.5; 5P; 10P | 0.2S; 0.5; 5P; 10P |
| Rated output (VA) | 10-60 | 10-60 | 10-50 | 10-50 | 10-50 | 10-50 | 10-50 | 10-50 | 10-40 |
| Instrument security factor (FS) | 5;10 | 5;10 | 5;10 | 5;10 | 5;10 | 5;10 | 5;10 | 5;10 | 5;10 |
| Rated accuracy limit factor | 25 | 25;30;40 | 20 | 20 | 20 | 20 | 20 | 20 | 20 |
| Rated short-time current/3s (max) Ith (KA) | 50 | 50 | 40 | 40 | 40 | 40 | 40 | 40 | 42 |
| Rated dynamic current (max) Idyn (KA) | 125 | 125 | 100 | 100 | 100 | 100 | 100 | 100 | 105 |
| Dimensions (mm) | 900×780×3770 | 915×570×4123 | 774×600×2734 | 774×600×2734 | 714×560×2420 | 594×485×2550 | 594×485×2550 | 714×560×2420 | 440×440×1800 |
| Mounting size (mm) | 700×460 | 710×460 | 475×475 | 475×475 | 475×475 | 310×360 | 310×360 | 475×475 | 265×265 |
| Net weight (Kg) | 1310 | 1700 | 760 | 760 | 590 | 450 | 450 | 590 | 165 |
| Gross weight (Kg) | 1586 | 1930 | 880 | 880 | 670 | 530 | 530 | 670 | 200 |
| Transformcr model | LVBT-500W2 | LVBT-330W2 | LVBT-220W3 | LVB-220W3 | LVB-110W3 | LVB-66W3 |
| Highest system voltage (KV) | 550 | 363 | 252 | 252 | 126 | 72.5 |
| Rated frequency (Hz) | 50 | 50 | 50 | 50 | 50 | 50 |
| Power frequency withsland voltage (KV) | 680 | 510 | 460 | 460 | 230 | 160 |
| BIL, 1.2/50μs full ware (KV) | 1175 | 950 | / | / | / | / |
| Choppcd test (KV) | 1550 | 1175 | 1050 | 1050 | 550 | 350 |
| Flashover distance (mm) | 3930 | 2675 | 2195 | 2200 | 1200 | 1200 |
| Creepage distance (mm) | ≥13750 | ≥11253 | ≥7812 | ≥7812 | ≥3906 | ≥2248 |
| Rated primary current (A) | 4000 | 4000 | 4000 | 4000 | 3000 | 3000 |
| Rated secondary current (A) | 5;1 | 5;1 | 5;1 | 5;1 | 5;1 | 5;1 |
| Accuracy class (Upon request) | 0.1; 0.2S; 0.5; 5P; 10P; TPY | 0.1; 0.2S; 0.5; 5P; 10P; TPY | 0.1; 0.2S; 0.5; 5P; 10P; TPY | 0.2S; 0.5; 5P; 10P | 0.2S; 0.5; 5P; 10P | 0.2S; 0.5; 5P; 10P |
| Rated output (VA) | 10-50 | 10-50 | 10-50 | 10-50 | 10-50 | 10-50 |
| Instrument security factor FS | 5;10 | 5;10 | 5;10 | 5;10 | 5;10 | 5;10 |
| Rated accuracy limit factor | 30 | 30 | 30 | 30 | 30 | 30 |
| Rated Short-time current/3s (max) Ith (KA) | 63 | 63 | 63 | 63 | 50 | 50 |
| Rated dynamic current (max) Idyn (KA) | 160 | 160 | 160 | 160 | 125 | 125 |
| Dimension (mm) | 1000×1200×6200 | 745×1127×4265 | 745×1060×3745 | 604×980×3650 | 535(604) ×780(930) ×2230(2370) | 535(604) ×780(930) ×2230(2370) |
| Mounting size (mm) | 650×650 | 600×600 | 600×600 | 600×600 | 450×450 | 450×450 |
| Net weight (Kg) | 2250 | 1000 | 800 | 500 | 480 | 480 |
| Gross weight (Kg) | 3100 | 1350 | 1070 | 790 | 550 | 550 |
