Our products are designed with user experience in mind, ensuring ease of operation and maintenance, which has garnered strong customer appreciation. The LXK Open Core Zero Sequence Current Transformer is a highperformance indoor distribution solution suitable for various industry applications. As a leading manufacturer and supplier based in China, our factory is committed to delivering quality electrical equipment that meets diverse market needs while enhancing operational efficiency and reliability.
1.Standards Compliance:Adheres to GB/T 20840.1, 2 and IEC 618691, 2 standards, ensuring reliable and safe performance.
2.Wide Operating Temperature Range:Functions effectively in ambient temperatures from 5℃ to +40℃, suitable for diverse environmental conditions.
3.Flexible Current Options:Offers rated secondary current options of 5A or 1A, providing versatility for various applications.
| Rated currentratio | Accuracyclass | Ratedoutput |
| 20/1 | 10P5 | 0.5 |
| 50100/1 | 1 | |
| 150/1 | 10P10 | 1.5 |
| 200/1300/1 | 2.5 | |
| 400/1600/1 | 5 | |
| 100/5 | 10P5 | 1.5 |
| 150200/5 | 10P10 | 2.5 |
| 300/5400/5 | 3.75 | |
| 500/5 | 5 | |
| 600/5 | 5 |
Note:If the parameters requested by the user are beyond the scope of the above table,they can be determined after consultation with our company.
| Type | ΦD | Φd | H | h | a | b | c | e |
| LXKΦ80 | 165 | 80 | 185 | 102 | 110 | 90 | 120 | 57 |
| LXKΦ100 | 180 | 100 | 202 | 112 | 110 | 90 | 120 | 57 |
| LXKΦ120 | 204 | 120 | 225 | 123 | 110 | 90 | 120 | 57 |
| LXKΦ150 | 235 | 150 | 267 | 150 | 150 | 120 | 151 | 57 |
| LXKΦ160 | 250 | 160 | 280 | 155 | 150 | 120 | 151 | 57 |
| LXKΦ200 | 330 | 200 | 365 | 200 | 220 | 124 | 164 | 80 |
| LXKΦ240 | 350 | 240 | 395 | 220 | 220 | 124 | 164 | 80 |
1.Power Factor Efficiency:Maintains a power factor of cosφ = 0.8 (lagging), optimizing energy efficiency during operation.
2.Rated Frequency Compatibility:Supports rated frequencies of 50 Hz or 60 Hz, allowing adaptability to different electrical systems.
3.Insulation Performance:The secondary winding and insulation between secondary windings and ground can withstand a power frequency withstand voltage of 3 kV for 1 minute, ensuring safety and reliability.
4.Detailed Specifications:Rated primary current, rated output, and accuracy class are systematically listed in the accompanying table for reference.
1.OpenCore Convenient Installation: Can be directly placed around the conductor without disassembling the primary circuit, enabling installation during liveline conditions for quick setup and easy maintenance.
2.HighPrecision ZeroSequence Current Detection: Accurately detects system leakage or unbalanced currents, supporting highaccuracy protection classes such as 10P5 and 10P10, suitable for ground fault protection and fault monitoring.
3.Wide Range of Current Ratios: Supports various ratio combinations from 20/1 to 600/5 to meet different system current requirements.
4.Strong Insulation Performance: The secondary winding and insulation between winding and ground can withstand 3 kV power frequency withstand voltage for 1 minute, ensuring operational safety.
1.DisassemblyFree Design: Significantly reduces installation and maintenance time, lowering labor costs and power outage losses.
2.Low Power Consumption Operation: Power factor cosφ=0.8 (lagging) reduces reactive power loss in the system.
3.LongTerm Stability and Reliability: Highquality materials and fully sealed structural design extend service life and reduce replacement frequency.
1.Multiple Specifications Available: Offers various inner diameters from Φ80 to Φ240 to accommodate different cable or busbar sizes.
2.Lightweight Structure: Easy to handle and position onsite, suitable for batch transportation.
3.ReadytoInstall Design: Opencore design with fasteners allows installation without special tools, supporting vertical or horizontal mounting.
1.Fully Sealed Epoxy Resin Encapsulation: Resistant to moisture, dust, and chemical corrosion, suitable for indoor damp or dusty environments.
2.High Mechanical Strength: Impactresistant housing with reinforced internal structure prevents deformation during longterm use.
3.Wide Temperature Operating Capability: Stable performance in ambient temperatures from 5℃ to +40℃, suitable for most distribution sites.
1.Automated Winding and Encapsulation: Ensures winding precision and insulation consistency, improving electrical performance.
2.Rigorous Aging and Withstand Voltage Testing: Each unit undergoes multiple tests including power frequency withstand voltage and partial discharge.
3.PrecisionMachined OpenCore Structure: Smooth, burrfree opening ensures complete magnetic circuit closure and measurement accuracy.
1.Openable/Closable Magnetic Circuit Design: Uses highstrength springs or screw locking to ensure low magnetic resistance and stable signal after closure.
2.Optional Signal Output Interface: Supports direct output or signal conversion modules for easy integration with various protection devices.
3.Optional Transparent Viewing Window: Facilitates onsite inspection of internal wiring and labeling.
1.LowLoss Silicon Steel Sheets: High permeability, low iron loss materials reduce noload losses.
2.EcoFriendly Insulation Materials: Compliant with RoHS requirements, nontoxic, and recyclable.
3.LongLife Design: Reduces equipment replacement frequency, lowering resource consumption over the product lifecycle.
1.Specialized in ZeroSequence Transformer R&D: Years of experience in opencore transformer design, validated in multiple practical projects.
2.Flexible Customization Capability: Supports nonstandard ratios, special apertures, protection classes, and other custom requirements.
3.Global Application Cases: Products exported to over 30 countries, widely used in power, petrochemical, rail transit, and other industries.
4.Comprehensive Technical Support: Professional guidance from selection to installation ensures system compatibility and reliable operation.
Q1: Does closing the opencore transformer affect measurement accuracy?
A: Precisionmachined hinges and locking mechanisms ensure a complete magnetic circuit after closure without affecting accuracy. Ensure tight closure during installation.
Q2: Can it be used outdoors?
A: This product is designed for indoor use. For outdoor applications, a protective enclosure or customized outdoor model is required.
Q3: How to choose the appropriate inner diameter size?
A: Select based on the outer diameter of the cable or busbar passing through the transformer. Generally, the inner diameter should be 1020mm larger than the conductor’s outer diameter.
1.Selection Guidance Service: Provides technical parameter tables and selection manuals, supports drawing confirmation.
2.Installation Training: Onsite or remote installation guidance and training videos available.
3.Rapid AfterSales Response: Dedicated technical service hotline for troubleshooting and solution provision.
Having developed for more than a decade, Jinhand is now counted among the top manufacturers and suppliers of electrical equipment in China. Our factory employs numerous advanced technologies and equipment, and we encourage you to order our premium, competitively priced Chinamade products.
Address
No. 188, Wei 15th Road, Yueqing City, Wenzhou City, Zhejiang Province, China
