High-current Zero Sequence Current Transformer
In the electrical systems always exists the possibility of having shutdowns due to over currents or short circuits produced by operation mistakes, ambient conditions, lack of maintenance or atmospheric discharges. Ground fault it occurs when one of the system phases get on direct contact to ground or to any metallic part that is grounded.
- Product Introduction
Wuxi Liou Electronics Co.,Ltd is one of the leading manufacturers and suppliers of high-current zero sequence current transformer in China. Our factory offer high quality customized products made in China with low price. Welcome to contact us for quotation.
LO-ZCT-002 zero sequence current transformer (CBCT)
Introduction
In the electrical systems always exists the possibility of having shutdowns due to over currents or short circuits produced by operation mistakes, ambient conditions, lack of maintenance or atmospheric discharges. Ground fault it occurs when one of the system phases get on direct contact to ground or to any metallic part that is grounded. The ground fault has its origin on different ways but the more common are reduced insulation, physical damages to insulation system or excessive transient or steady-state voltage stresses on insulation. These problems can be produced due to moisture, atmospheric contamination, insulation deterioration, mechanical stresses, etc. Although the situations mentioned before can be avoided following a good maintenance Schedule, always exists the latent risk of a fault, commonly during the installation or major maintenance to equipment.
Description
· Close to zero load shift
· Excellent balance properties
· Precision output voltage
· Minimal thermal variance
· RoHS compliant
· Smaller volume, lighter weight
· Perfect protection, delicate structure for convenient installing
· Excellent design and industrial appearance
· High accuracy satisfied diverse application
· Flexible design
· Versatile modular box for diverse application
Features :
• Frequency Range: 50-400Hz
• AC isolation resistance: 5.0KV for 60s
• Rigid housing case with UL® 94V-0 polycarbonate
• Safety standard: IEC61862
• Max. Operation voltage: AC660V
• Thermal Insulation Class: Class B
• Humidity: Up to 95%RH (Non-condensing)
Dimensions
|
Model specifications |
Main circuit current (A) |
Overall dimensions (mm) |
Dimensions (mm) |
||||||
|
L |
W |
H |
R |
S |
D1 |
D2 |
M |
||
|
LO-ZCT-602 |
≤100A |
152 |
32 |
77 |
112 |
25 |
153.5 |
163.5 |
6 |
| LO-ZCT-702 |
≤250A |
186 |
32 |
91 |
142 |
35 |
185 |
198.5 |
6 |
| LO-ZCT-802 |
≤400A |
240 |
32 |
100 |
192 |
40 |
245.5 |
257 |
6 |
| LO-ZCT-902 |
≤630A |
282 |
32 |
107 |
232 |
45 |
284.5 |
298 |
6 |
| LO-ZCT-002 |
≤1000A |
368 |
45 |
140 |
300 |
60 |
368 |
388 |
6 |
Balance performance:
|
P/N |
Main circuit rated operating current |
Test current |
Conductor diameter |
Conductor insulation thickness |
Unbalance current |
|
LO-ZCT-602 |
0≤In≤100A |
100A |
6mm |
0.5mm |
≤5mA@100A |
| LO-ZCT-702 |
0≤In≤250A |
315A |
10mm |
1.5mm |
≤10mA@315A |
| LO-ZCT-802 |
0≤In≤400A |
630A |
14mm |
2.0mm |
≤20mA@630A |
| LO-ZCT-902 |
0≤In≤630A |
630A |
14mm |
2.0mm |
≤20mA@630A |
| LO-ZCT-002 |
0≤In≤1000A |
1000A |
20mm |
2.0mm |
≤30mA@1000A |
Wuxi Liou Electronics Co Ltd
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